| ‘Ard na Ríag de ’na deagaid’: Tradition, Memory, and Continuity in Northern Connacht | Darwin, Gregory R. | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| "A day of joy and pride" : a history of the Church of Our Lady of Lourdes | Durnin, Peter | Article in Journal | | 2000 |
| "At the feet of Gabriel" : a short history of the Holy Trinity parish, Schull. Diocese of Cork | Gibson, Charles G. | Monograph or Collective Volume | [Holy Trinity parish, Schull] | 1953 |
| "Colmcille ... built many chapels and churches in Tir Chonaill" : investigating the evidence | Ó Domhnaill, Adhamhnán | Monograph or Collective Volume | The author | 1997 |
| "Commitment being our challenge" : a history of the parish of Tullanisken, Newmills, Co. Tyrone | Donnelly, Eileen Elizabeth | Monograph or Collective Volume | Imprint [printer] | 1993 |
| "Doesn't Mary have a lovely bottom?": Gender, sexuality and Catholic ideology in 'Father Ted' | McGonigle, Lisa | Article in Journal | | 2012 |
| "Down the village street" : script no. 7 : Stradone, Co. Cavan, 20-10-1946 | Mac Glynn, Lochlinn | Article in Journal | | 1982 |
| "Eastig a Deena": a bilingual O'Connellite ballad | Holohan, Patrick | Article in Journal | | 2011 |
| "Eden in Albion" : a history of the Mikveh in Britain | Kadish, Sharman, 1959- | Article in Book | Vallentine Mitchell | 1996 |
| "Gloom and grandeur" or the threshing floor : the manufacture of ecclesiastical ruins in nineteenth-century Ireland | Ní Cheallaigh, Máirín | Article in Book | | 2005 |
| "Got Cork" ; an exhibition on the occasion of the centenary of William Burges 1827-1881, architect of St. Fin Barre's cathedral | Carey, Maurice | Monograph or Collective Volume | Crawford Municipal Art gallery | 1983 |
| "Holye crossys" : a catalogue of processional, altar, pendant and crucifix figures for late medieval Ireland | Hourihane, Colum P., 1955- | Article in Journal | | 2000 |
| "I lift up mine eyes" : A Re-evaluation of the tower in Cistercian architecture in Britain and Ireland | Harrison, Stuart | Article in Book | Brepols | 2004 |
| "Just the Same Part of the United Kingdom as Your County Sussex" : the BBC and the arrival of television in Northern Ireland in the 1950s | Hill, AndrewHill, John W. | Article in Journal | | 2007 |
| "Kilarny grange" : but what's in a name | Breen, Eleanor | Article in Journal | | 1994 |
| "Lasting monuments": Lady Gregory's domesticated landscape and forestry | Pilz, Anna | Article in Book | Four Courts Press | 2018 |
| "Li Salt Brandan" : navigation and flight : a contribution to the study of the fantastic narrative in Benediet's "Voyage of Saint Brendan" | Lemarchand, M. L. | Article in Book | Boole Press | 1989 |
| "Notabilia" of the Diocese of Ossory | Neary, P., C.C. | Article in Journal | | 1879 |
| "One dead horse, 10.30am" : Irish broadcasting 1926-1966 and the Easter Rebellion | Lynch, Brian | Article in Book | Routledge | 2007 |
| "Phylacteries of misery" or "mystic-eyed hierophants" : some ecclesiastical and educational challenges in England of the Irish diaspora 1850-1902 | McClelland, V. | Article in Journal | | 1997 |
| "Protected space" in Britain and Ireland in the middle ages | Davies, Wendy, 1942- | Article in Book | Scottish Cultural | 1996 |
| "The Ford of Ae" : some historical notes on the town of Athy | Comerford, Michael, Coadjutor Bishop of Kildare and Leighlin | Article in Journal | | 1895 |
| "The other community" : Northern Ireland in British television, 1995 | Cornell, Jennifer C. | Article in Journal | | 1997 |
| "The two eyes of Ireland" : Religion and literature in the eighth and ninth centuries | Flower, Robin | Article in Book | | 1932 |
| "The Unkinde Deserter" and "The Bright Duke" : contrasting views of the dukes of Ormonde in the Irish royalist tradition | Ó Ciardha, Éamonn | Article in Book | Boydell Press | 2000 |
| "The wanderings/travels of my Lysaght forebears" | Mitchell, Joanne | Article in Journal | | 2002 |
| "The wee church on the hill" : a history of Drumtullagh Church, 1841-1991 | Quigg, L. F. | Monograph or Collective Volume | Impact Printing (Coleraine and Ballycastle) [Printer] | 1991 |
| "To be named is to exist" : the instructive case of Achadh Bolg (Aghabulloge) | Ó Riain, Pádraig | Article in Book | | 1993 |
| "Too peculiarly Anglican" : the role of the established church in Ireland as a negative model in the development of the Church Missionary Society's commitment to independent native churches, 1856-1872 | Williams, C. Peter | Article in Book | Blackwell Publishers | 1989 |
| "Ulster will fight and Ulster will be right" : the protestant churches and Ulster's resistance to home rule 1912 | Holmes, Finlay | Article in Book | | 1983 |
| "Unbroken service" : Máiréad Ní Ghráda's career at 2RN, Ireland's first broadcasting station, 1927-35 | Morgan, E. | Article in Journal | | 2002 |
| "von Ibern und von Irlant" : Ireland in Middle High German literature | Busch, NathanaelLange, Patrick | Article in Book | | 2017 |
| "What a fool I have been" : Fr. Robert O'Keeffe, parish priest and the Callan controversy 1869-1881 | Hogan, Patrick | Article in Book | Philip P. Lynch in co-operation with Callan Heritage Society | 2010 |
| "What truth is there in this story?" : The dramatisation of Northern Ireland | Braun, Edward | Article in Book | Palgrave Macmillan | 2000 |
| 'A candidate who seemed tailor-made for the job' | Mitchell, Thomas | Article in Book | New Island | 2015 |
| 'A desert for the arts'? Orchestral provision in Northern Ireland, 1945-1981 | Kennedy, Ciarán | Thesis | | |
| 'A goodly heritage' : the 18th-century music archive at Christ Church Cathedral, Dublin | Hemmens, Susan | Article in Journal | | 2014 |
| 'A little fancy building hastily erected': Frances Anne Vane-Tempest and the landscaping and development of the demesne at Garron Tower, part 2 | Casement, Anne | Article in Journal | | 2020 |
| 'A noble church in the most Catholic quarter of a bitterly Protestant and Presbyterian city': the Church of the Most Holy Redeemer, Clonard, West Belfast | McGee, Caroline M. | Article in Book | Irish Academic Press | 2013 |
| 'A stained glass window in the Glens' | Rogers, Frank | Article in Journal | | 2015 |
| 'A star of the first magnitude' : William Bedell (1571-1642), bishop of Kilmore and Gaelic culture | Caball, Marc | Article in Book | Cumann Seanchais Bhreifne | 2025 |
| 'A star of the first magnitude' : William Bedell (1571-1642), bishop of Kilmore and Gaelic culture | Caball, Marc | Article in Book | Geography Publications | 2014 |
| 'A stranger among us': Edward Roth and the development of Telefís Éireann | Savage, Robert | Article in Journal | | 2010 |
| 'All gorgiusly wrought' : Renaissance influence at Christ Church cathedral, Dublin | Kinsella, Stuart | Article in Book | Four Courts Press | 2011 |
| 'All that Peter stands for' : the Romanitas of the Codex amiatinus reconsidered | O'Reilly, Jennifer | Article in Book | Oxford University Press for the British Academy | 2009 |
| 'All well here': the Diary of Bishop Joseph Stock, 1811 | Flaherty, Cian | Article in Journal | | 2019 |
| 'Almoners of Providence' : the clergy 1647 to c. 1780 | Barnard, T. C. (Toby Christopher) | Article in Book | Four Courts Press | 2006 |
| 'An ambiguous awe' : Paul Cullen and the historians | Barr, Colin | Article in Book | Four Courts Press | 2011 |
| 'An invaluable legacy to future generations of educationalists' | Hyland, Áine | Article in Book | New Island | 2015 |
| 'An overriding providence' : the life and ministry of Tresham Dames Gregg (1800-81) | Crawford, John, 1953-2011 | Article in Book | Four Courts Press | 2006 |
| 'Archive of the month' : The RCB Library reaches out to a worldwide audience | Hood, Susan | Article in Journal | | 2014 |
| 'Attending to the wants of poverty' : Paul Cullen, the relief of poverty and the development of social welfare in Ireland | Crossman, Virginia | Article in Book | Four Courts Press | 2011 |
| 'Bulwark of the nations': Paul Cullen, the Christian Brothers, and the evangelization of an Irish empire | Keogh, Dáire | Article in Book | Four Courts Press | 2012 |
| 'But what exactly did she give?' Derbforgaill and the Nuns' Church at Clonmacnoise | Ní Ghrádaigh, Jenifer | Article in Book | Wordwell | 2003 |
| 'Calendar of Archbishop Alen's register', 1950 | O'Sullivan, J. F. | Article in Journal | | 1951 |
| 'Casting Bread Upon the Water': A voyage of discovery | McCarthy, Carmel | Article in Book | T & T Clark | 2018 |
| 'Chalices have wings' | Krasnodebska-D'Aughton, Malgorzata | Article in Book | Wordwell | 2009 |
| 'Collegium S. Antonii Lovanii, quod Collegium est unicum remedium ad conservandam Provinciam' (Donnchadh Ó Maonaigh, 1617-18) | Mac Craith, Mícheál | Article in Book | Four Courts Press | 2009 |
| 'Differing in status, but one in spirit': sacred space and social diversity at island monasteries in Connemara, Ireland | Burke, TommyChesson, Meredith S.Kuijt, IanLash, Ryan | Article in Journal | | 2018 |
| 'Divorcing Jack' et 'An Everlasting Peace': les comédies à l'écran et le processus de paix en Irlande du Nord | Bazin, Cécile
| Article in Journal | | 2011 |
| 'Drong' and 'Dál' as synonyms for 'Óenach' | MacCotter, Paul | Article in Journal | | 2012 |
| 'Dublin calling' : 2RN and the birth of Irish radio | Clarke, Paddy | Monograph or Collective Volume | Radio Telefís Éireann | 1986 |
| 'Eagla an Ghallsmacht': the religion and politics of Irish catholics,1620s-1670s | Kennedy, Mary Catherine | Thesis | | 1987 |
| 'Early medieval "monastic towns"' or "forts and fields" : reflections on the urban character of Viking age ecclesiastical settlements in light of the emerging archaeological evidence | Harney, Lorcan | Article in Journal | | 2018 |
| 'Fighting Dick' Talbot, 'the Chevalier'Wogan and Lally-Tolendal: jailbreakers and jailbirds | Ó Ciardha, Éamonn | Article in Journal | | 2011 |
| 'God bless your free Church of Ireland' : Wentworth, Laud, Bramhall and the Irish Convocation of 1634 | McCafferty, John | Article in Book | | 1996 |
| 'He boxed lightly in the interviews but intended to land a punch': David Thornley at RTE, 1966-69 | Mac Conghail, Muiris | Article in Book | | 2008 |
| 'He came to her bed pretending courtship': sex, courtship and the making of marriage in Ulster, 1750-1844 | Calvert, Leanne | Article in Journal | | 2018 |
| 'Holy Entrepreneur': Agilbert, a Merovingian bishop between Ireland, England and Francia | Hammer, Carl I.
| Article in Journal | | 2012 |
| 'Holy, holier, holiest' : the sacred topography of the earliest medieval Irish church | Jenkins, David Harold | Monograph or Collective Volume | Brepols | 2010 |
| 'In imitation of that holy patron of prelates the blessed St. Charles' : episcopal activity in Ireland and the formation of a confessional identity, 1618-1653 | Ó hAnnracháin, Tadhg | Article in Book | | 2005 |
| 'In what orbit we shall find ourselves, no one could predict': institutional reform, the university merger and ecclesiastical influence on Irish higher education in the 1960s | Nolan, AnnWalsh, John | Article in Journal | | 2017 |
| 'Infatuated to his ruin' : the fate of Thomas Dermody, 1775-1802 | Griffin, Michael | Article in Journal | | 2006 |
| 'Insurrection' on Irish Television | Gibbons, Luke | Article in Book | | 2017 |
| 'Irish concealed lands papers' in the Hastings manuscripts in the Huntington Library, San Marino, California | O'Dowd, Mary | Article in Journal | | 1984 |
| 'Mindful of her St. Columbas and Gaels ': Ireland, empire and Australian Anglicanism, 1788-1850 | Gladwin, Michael | Article in Book | | 2015 |
| 'My repeated troubles' : Dr James Gallagher (bishop of Raphoe 1725-37) and the impact of the Penal Laws | Mac Murchaidh, Ciarán | Article in Book | | 2011 |
| 'New and elegant chapels, either built or in the act of building' : St John the Baptist, Cashel, and Catholic architecture in an era of relief and reform | NicGhabhann Coleman, Niamh | Article in Journal | | 2024 |
| 'New Light' thinking and non-subscription amongst Protestant dissenters in England and Ireland in the early 18th century and their relationship with Glasgow University and Scotland | Steers, David | Thesis | | |
| 'Not ... an equal, but ... one of his subjects' : John Henry Newman's perception of the archbishop of Dublin | Ker, Ian | Article in Book | | 2011 |
| 'Nuair a bhí an Slánaitheoir ag siúl ar an talamh' : scéalta mínithe cráifeacha sa traidisiún béil | Ó Héalaí, Pádraig | Article in Book | | 2007 |
| 'Our daily bread': food and monastic diet in early medieval Ireland | O'Byrne, Clara Margaret | Thesis | | 1999 |
| 'Over the storm-swelled sea' : early medieval ecclesiastical migration from northern Britain to Ireland | Plumb, Oisín Kingsley Paul | Thesis | | |
| 'Powerful adversaries' : the Knights Templar, landholding and litigation in the lordship of Ireland | Coleman, Edward | Article in Book | | 2015 |
| 'Raising the roof' in the middle ages | Geaney, Máire | Article in Book | | 2007 |
| 'Res, tempus, locus, persona': Adomnán's exegetical method | O'Loughlin, Thomas | Article in Journal | | 1997 |
| 'Seir kieran : place, pilgrimage, and tradition in the monastic midlands | Mandal, StephenO'Sullivan, MuirisRogers, Michael 'Bodhi'Shine, Denis | Article in Journal | | 2018 |
| 'Si quaeris monumentum, circumspice' William Robertson (1770-1850), Kilkenny's first architect | Lucey, John | Article in Journal | | 2018 |
| 'Slow and cold in the true service of God' : popular beliefs and practices, conformity and Reformation in Wales, c.1530-1600 | Olson, Jatharine K. | Article in Book | | 2014 |
| 'Soldier of Christ' : the political and ecclesiastical career of Nicholas French, Catholic bishop of Ferns (1603-1678) | McHugh, Jason | Thesis | | 2005 |
| 'Srong views ... in very strong forms' : Paul Cullen, archbishop of Armagh, 1849-52 | Macaulay, Ambrose | Article in Book | | 2011 |
| 'Stair Mhlaise ar Dhartraighibh déin' by Sighraidh Ó Cuirnín : a poem on the rights and privileges of the Coarb of Saint Molaise over Dartraighe | Smith, Peter J. | Article in Journal | | 2018 |
| 'The Church-Going Bell': a sermon preached in the Parish church of S. Patrick, Coleraine, at the dedication of a memorial peal of bells on Easter Day, April 2, 1893 | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Monograph or Collective Volume | W. & G. Baird [Printer] | 1893 |
| 'The curious incident of the dog in the night-time': the pre-Reformation Church in Wales | Gray, Madeleine | Article in Book | | 2014 |
| 'The monastic city' in Wales : myth or reality? | Butler, Lawrence A. S. | Article in Journal | | 1979 |
| 'The only lever...?', The Catholic priest in Irish politics, 1823-29 | O'Ferrall, Fergus | Article in Journal | | 1981 |
| 'The Troubles we've seen' : film, television drama and the Northern Irish conflict in Britain | Hill, John W. | Article in Book | | 2017 |
| 'The Vile System of Altar Denunciation'. The case of Fr Anthony Nolan, PP, Monsea Co. Tipperary | Grace, Daniel | Article in Journal | | 2012 |
| 'The wasting sickness of Cú Culainn' | Toner, Gregory | Article in Book | | 2019 |
| 'Theatres of worship' : Dissenting meeting houses in Dublin, 1650-1750 | ffeary-Smyrl, Steven | Article in Book | | 1995 |
| 'Then She Went to a Mountain Solitude'. Searching for Nuns in the Bushes of Medieval Welsh Hagiography | Morgan, G.J. | Article in Journal | | 2022 |
| 'Through the lens' : the Irish nurse in cinema and television | Fealy, Gerard M. | Article in Book | | 2005 |
| 'To keep hospitality' : bishops, banquets and buildings, 1660-1714 | O'Rourke, Liam | Article in Book | Four Courts Press | 2025 |
| 'Trading patria for peregrinatio' ; the Irish in medieval Europe | Ó Riain, Diarmuid | Article in Book | | 2025 |
| 'Unsightly and unbecoming' : the progress of the Gothic revival in a metropolitan parish | Casey, Christine | Article in Book | | 2008 |
| 'Vested' interests and debt bondage : credit as confessional coercion in colonial Ireland | Moore, Seán | Article in Book | | 2011 |
| 'We shall find a way through' : the Church of Ireland, state prayers and liturgical realities | Ó Corráin, Daithí | Article in Book | | 2006 |
| 'With much quiet fervour' : A brief history of Dunlavin Roman Catholic parish and St. Nicholas of Myra church | Lawlor, Chris | Monograph or Collective Volume | Chris Lawlor | 2018 |
| 'You can make your wee film. But no cameras'. Unionism in 2005 | McKay, Susan | Article in Journal | | 2006 |
| 'You'll be lucky to have him' | Dooley, Séamus | Article in Book | | 2015 |
| 14th century monastic estates in Meath : the Llanthony cells of Duleek and Colp | Brooks, E. St. John | Article in Journal | | 1977 |
| 14th century monastic estates in Meath : the Llanthony cells of Duleek and Colp | Brooks, E. St. J. | Article in Journal | | 1953 |
| 150th anniversary of Kilcronaghan Parish Church | Richardson, H. Hilary | Monograph or Collective Volume | Kilcronaghan Parish Church | 2008 |
| 1696-1996 : St. Paul's Church, Portarlington, 'the French church' : an illustrated history | Powell, J. S. (John Stocks) | Monograph or Collective Volume | Portarlington and Monasterevan Parish of the Church of Ireland | 1996 |
| 17th century church plate from Co. Clare | Lynch, Michael | Article in Journal | | 2004 |
| 18th century documents relating to the parish of St. Michan, Dublin | Young, E. J. | Article in Journal | | 1933 |
| 1916, the Church and the Rising | NA | Monograph or Collective Volume | The Irish Catholic | 2016 |
| 1922 and all that : the inner war in feature films of independence | Cole, Robert, 1939- | Article in Journal | | 2000 |
| 1948/49 C.B.S. participate in concert and drill | Mannion, Willie | Article in Journal | | 2006 |
| 2020 ..... A year of anniversaries | Finlay, John | Article in Journal | | 2020 |
| 20th century | Hurley, Richard | Article in Book | | 2000 |
| 250 years of farming in Mountshannon | Cahill, Ned | Article in Book | | 1993 |
| 2BE consolidates : the early years of the BBC in Northern Ireland | Cathcart, Rex | Article in Book | | 1996 |
| 75th anniversary year (1933-2008) : The story of Saint Martin's Church and the Southern Church mission to Ballymacarrett | McMullan, Gordon | Monograph or Collective Volume | [St Martin's Church] | 2008 |
| A 1555 papal 'bulla' for Clare Abbey | McInerney, Luke | Article in Journal | | 2011 |
| A 15th century Medieval Aisle Altar, Sligo Dominican Abbey | Higgins, JimTimoney, Martin A. | Article in Journal | | 2022 |
| A baptismal font at Wyanstown, Co. Louth | Cahill, Mary | Article in Journal | | 1983 |
| A bastioned fort on Coney Island, Co. Sligo | Timonay, Martin A. | Article in Journal | | 2018 |
| A bibliography of the works of Johannes Scottus Eriugena | Sheldon-Williams, I. P. | Article in Journal | | 1960 |
| A bishop backs Sinn Féin | Fogarty, Michael, Bishop of Killaloe | Article in Book | | 2016 |
| A Bishop of penal times: the life and times of John O'Brien, Bishop of Cloyne and Ross, 1701-1769 | Coombes, James | Monograph or Collective Volume | Tower Books | 1981 |
| A bishop of the MacCarthy's : Dr Florence MacCarthy (1761-1810) | Walsh, T. J. | Article in Journal | | 1951 |
| A brief account of the Cathedral Church of the Blessed Trinity (Christ Church), Waterford : its history and monuments. also of the Holy Ghost Friary, or, 'French Church' of Waterford and the ancient Danish Church of St. Olaf | | Monograph or Collective Volume | [Waterford Cathedral] | 1967 |
| A brief account of the Magdalen Chapel Lower Leeson Street, Dublin : its foundress, its benefactors, list of clergy and chaplains | Peter, A. | Monograph or Collective Volume | Hodges, Figgis | 1907 |
| A brief history and description of St. Savior's Priory, commonly called Blackfriars, Waterford | Lumley, I. W. J. | Article in Journal | | 1977 |
| A brief history of the Church of St. Patrick, Coleraine, with some account of its proposed renovation | [St. Patrick's Church, Coleraine] | Monograph or Collective Volume | Constitution Office [Printer] | 1883 |
| A brief history of the Parish of St. Paul's, Gilford, Diocese of Dromore, 1869-1999 | Patterson, A. P. | Monograph or Collective Volume | [The author] | 1999 |
| A British patriarchy? : ecclesiastical imperialism under the early Stuarts | Morrill, John Stephen, 1946- | Article in Book | | 1994 |
| A calendar of Papal Registers relating to Clonfert Diocese | Larkin, Patrick | Monograph or Collective Volume | Patrick Larkin | 2017 |
| A calendar of the letters of Thomas Bray, Archbishop of Cashel, 1792-1820 | Meagher, Mary T. | Thesis | | 1966 |
| A calendar of the papers of Michael Slattery, archbishop of Cashel, 1834-57 | Tierney, Mark | Thesis | | 1965 |
| A calendar of the reassembled register of John Bole, archbishop of Armargh, 1457-1471 | Lynch, A. | Article in Journal | | 1992 |
| A case study : Clochar Macc nDaimíni | Warner, R. B. | Article in Journal | | 1981 |
| A Castilian-Regalist cradling : Spanish-Habsburg formation of the early Irish Counter Reformation | Downey, Declan M. | Article in Book | | 2006 |
| A catalogue of misericords in Great Britain | Remnant, G. L. | Monograph or Collective Volume | | 1969 |
| A catalogue of the Bishops of Raphoe to A.D. 1600 | Jefferies, Henry A. | Article in Journal | | 1997 |
| A cathedral : a chair-church | Flannery, Austin OP | Article in Book | | 1998 |
| A cathedral of its time | Macaulay, Ambrose | Article in Book | | |
| A cathedral renewed : St Macartan's Monaghan | | Monograph or Collective Volume | The Columba Press | 1998 |
| A cathedral renewed : St Macartan's Monaghan | Griffin, Elthin | Monograph or Collective Volume | Columba | 1998 |
| A celebrated eighteenth-century preacher in Dublin | Ó Súilleabháin, Pádraig | Article in Journal | | 1966 |
| A celebration of everyday things and ordinary people. Roddy Hegarty for 'Due North' interviews Joe Mahon of "Lesser Spotted Ulster" | Hegarty, Roddy | Article in Journal | | 2012 |
| A century of science in the I.E.R : Monsignor Molloy and Father Gill | McLaughlin, Patrick J. | Article in Journal | | 1964 |
| A century old 'The Harry Clarke Nativity window in St Patrick's Church | O'Reilly, Vincent | Article in Journal | | 2023 |
| A challenging island? | Brown, TonyFonvelle, ThierryPears, Ben | Article in Journal | | 2020 |
| A changing church | Murphy, Brian | Article in Book | | 2005 |
| A charge addressed to the clergy of the Dioceses of Armagh and Clogher at the Annual Visitation, 1864 | Gervais, Marcus | Monograph or Collective Volume | Hodges, Foster | 1865 |
| A charge delivered to the clergy of the united dioceses of Cork, Cloyne, and Ross at the ordinary visitation, October 1867 | Gregg, John | Monograph or Collective Volume | Hodges, Smith | 1867 |
| A charge delivered to the clergy of the united dioceses of Cork, Cloyne, and Ross at the ordinary visitation, October 1882 | Gregg, Robert S. | Monograph or Collective Volume | George Herbert | 1882 |
| A charge delivered to the clergy of the united dioceses of Cork, Cloyne, and Ross, at his primary visitation, in September, 1863 | Gregg, John | Monograph or Collective Volume | William Curry | 1863 |
| A charge delivered to the clergy of the united dioceses of Cork, Cloyne, and Ross, at the ordinary visitation, October 1866 | Gregg, John | Monograph or Collective Volume | Hodges, Smith | 1866 |
| A Church of Ireland diocese in the age of Catholic emancipation | Brynn, Edward | Article in Journal | | 1971 |
| A church of Ireland parish in County Cork | McCutcheon, Sam | Monograph or Collective Volume | Christian Stewardship committee, St Luke's, Douglas. | 1983 |
| A church's tercentenary : Ballywalter | Stewart, David | Monograph or Collective Volume | [The author] | 1926 |
| A clerical dogfight, 1767-1772 : the appointment of Archbishop James Butler II of Cashel | Moloney, John | Article in Journal | | 1983 |
| A clerical retrospect | Haddock, Josiah | Monograph or Collective Volume | Lurgan Mail Press | 1957 |
| A comment on Fr. Aubrey Gwynn's 'The medieval province of Armagh' | Ó Ceallaigh, Séamus | Article in Journal | | 1953 |
| A companion guide to architecture in Ireland, 1837-1921 | Girouard, MarkWilliams, Jeremy | Monograph or Collective Volume | Irish Academic Press | 1994 |
| A companion to Britain in the later middle ages | | Monograph or Collective Volume | Blackwell, in association with the Historical Association | 2003 |
| A complete Catholic directory, almanack, and registry | [Battersby, W. J.] | Monograph or Collective Volume | | 1836 |
| A Cork family in the Bastille | Ó hAnnracháin, Eoghan | Article in Journal | | 2002 |
| A corner of Buttevant | Daly, Albert H. | Monograph or Collective Volume | [The author] | No date given |
| A crisis of ethics : breaking the cycle of newspaper irresponsibility | Frost, Chris | Article in Book | | 2015 |
| A critical analysis of the decisions of the General Assembly of the Presbyterian Church in Ireland on social issues, 1921-1970 | Davison, William Eoin | Thesis | | |
| A cross-inscribed stone from an early ecclesiastical enclosure at Bawntemple, near Macroom, Co. Cork | Hurley, Vincent | Article in Journal | | 1981 |
| A crozier and bell from Inishmurray and their place in ninth-century Irish archaeology | Bourke, Cormac | Article in Journal | | 1985 |
| A crozier knop from County Tipperary : a preliminary note | Holland, Patrick | Article in Journal | | 2006 |
| A cryptic puzzle from medieval Dublin | O'Keeffe, Tadhg | Article in Journal | | 2017 |
| A current directory of "listed" and other important buildings in Coleraine | Anderson, Robert | Article in Journal | | 2018 |
| A cursory visit to the old churches of Glenmore | Farrell, E., P.P. | Article in Journal | | 1879 |
| A day in thy courts : the story of Newtownbreda Presbyterian church, 1984-1992 | Ross, Ronald | Monograph or Collective Volume | Newtownbreda Presbyterian Church | 1992 |
| A deceived audience or a discerning audience? : news management and the threat to the public sphere | Corcoran, Mary P. | Article in Book | | 2005 |
| A description of Clogher cathedral in the early sixteenth century | Haren, M. J. | Article in Journal | | 1985 |
| A descriptive and historic guide through St. Mary's Cathedral, Limerick | Meredyth, Francis | Monograph or Collective Volume | George McKern & Sons | 1887 |
| A difficult phrase in the 'Confession' of St. Patrick | Ryan, John | Article in Journal | | 1938 |
| A distinguished Irish humanist : Bonaventure Baron, O.F.M., of Clonmel (1610-96) | Wall, Thomas | Article in Journal | | 1946 |
| A distribution of early Christian monastic sites and its implications for contemporary secular settlement in County Louth | Murphy, Donald | Article in Journal | | 1992 |
| A dominant church : the diocese of Achonry 1818-1960 | Swords, Liam | Monograph or Collective Volume | Columba | 2004 |
| A dream comes true... the story of the building of St. Hilda's Parish Chruch | Moore, Edward James | Monograph or Collective Volume | Belfast News Letter Printing Co. [Printer] | 1970 |
| A Dublin convert roll : the diary of the Rev. P. E. O'Farrelly | O'Connell, Philip | Article in Journal | | 1949 |
| A Dublin priest translates the Latin New Testament into English | Pope, Hugh | Article in Journal | | 1939 |
| A dynastic nation? Re-thinking national consciousness in early seventeenth-century Ireland | Kane, Brendan | Article in Book | | 2010 |
| A failure of leadership? Bishop Edward Staples and the Reformation in Meath, 1529-1554 | Scott, Brendan | Article in Book | | 2015 |
| A family group of teachers, 1740-1900 : the Grants of Newry | Fitzsimons, J. | Article in Journal | | 1947 |
| A fantastic and abstruce Latinity : Hiberno-Continental and cultural and literary transactions in the Middle Ages | | Monograph or Collective Volume | Nodus Publikationen | 2017 |
| A fantastic journey : the life and literature of Lafcadio Hearn | Murray, Paul | Monograph or Collective Volume | Japan Library | 1993 |
| Á fenian pastime'? Early Irish board games and their identification with chess | Harding, Timothy | Article in Journal | | 2010 |
| A Field Guide to the Buildings of Ireland : illustrating the smaller buildings of town and countryside | Rothery, Sean | Monograph or Collective Volume | Lilliput | 1997 |
| A flying visit to Bishop's Island, Co. Clare | O'Sullivan, JerryÓ Caoimh, TomásÓ Carragáin, Tomás | Article in Journal | | 2005 |
| A forgotton church in East Galway: the Abbey of Cormicans of Abbeygormacan | Larkin, Patrick | Article in Journal | | 2015 |
| A formative force : the BBC's role in the development of music and its audiences in Northern Ireland 1924-39 | Stanley, Ruth | Thesis | | |
| A fourteenth-century Clare heresy trial | Gleeson, Dermot F. | Article in Journal | | 1958 |
| A fourteenth-century historical compilation from St Mary's Cistercian abbey, Dublin | Meehan, Bernard | Article in Book | | 2016 |
| A fresh look at Versiculi Familiae Benchuir | O'Dwyer, P. | Article in Journal | | 1981 |
| A Galway made chalice from north county Clare | Lynch, Michael | Article in Journal | | 2013 |
| A geophysical survey of Carrowmore ecclesiastical complex, Inishowen | Adams, MaxO'Brien, Colm | Article in Journal | | 2013 |
| A Glendalough bishop in Germany? The Four Masters and the three Gilla na Náems | Ó Riain, Diarmuid | Article in Book | | 2011 |
| A glorious extravaganza : the history of Monkstown parish church | Murphy, Etain | Monograph or Collective Volume | Wordwell | 2003 |
| A glorious treasury - The stained glass windows in the church at Desertegney | Walsh, John R. | Article in Journal | | 2009 |
| A golden vision; John O'Connell, Bertram Windle and the Honan bequest | Teehan, Virginia | Article in Book | | 2004 |
| A great feast of light : growing up Irish in the television age | Doyle, John | Monograph or Collective Volume | Aurum Press | 2005 |
| A great Irish missionary : Dr Joseph Shanahan, C. S. Sp. (1870-1943) | Ronayne, T. | Article in Journal | | 1944 |
| A Greek cross in Dungiven | Tracey, Joe | Article in Journal | | 2000 |
| A group of early Christian carved stone monuments in County Donegal | Harbison, Peter | Article in Book | | 1986 |
| A group of related synodal statutes of the 13th century | Cheney, Christopher Robert | Article in Book | | 1961 |
| A guide to Connemara's early Christian sites | Previté, Anthony | Monograph or Collective Volume | Oldchapel Press | 2008 |
| A guide to local history sources in the Public Record Office of Northern Ireland | Bardon, Jonathan, 1941- | Monograph or Collective Volume | Blackstaff Press | 2000 |
| A guide to Lough Corrib's early monastic sites | Previté, Anthony | Monograph or Collective Volume | Oldchapel Press | 2010 |
| A Guide to the Cathedral Church of S. Columb, Derry | Hayes, Richard | Monograph or Collective Volume | Sentinel Office [printer] | 1916 |
| A guide to the stained glass of Christ Church Cathedral, Dublin | Whiteside, Lesley | Monograph or Collective Volume | Christ Church Cathedral | 2010 |
| A Hidden Church: The Diocese of Achonry, 1689-1818 | Swords, Liam | Monograph or Collective Volume | The Columba Press | 1997 |
| A High Cross fragment from Killeeshil, county Tyrone | Foley, Claire | Article in Journal | | 2018 |
| A historical report on the church of St. Anne, Mallow | | Monograph or Collective Volume | [The author] | 1976 |
| A history of Ballindrait church and its people | Mahaffy, Belinda | Monograph or Collective Volume | Ballindrait Presbyterian Church | 2008 |
| A history of Cloneyharp National School, 1837-1979 | Carroll, TomRyan, Con, | Monograph or Collective Volume | Walsh Printers | 2014 |
| A history of Community Radio in South Dublin | Purcall, Mike | Article in Journal | | 2024 |
| A history of Dunderry. Part 1 | Keely, JohnKeely, Patrick | Monograph or Collective Volume | [Dunderry History Group] | 2005 |
| A history of Glencraig Parish | Hill, George W. L.Maconachie, Alwyn | Monograph or Collective Volume | William Trimble [Printer] | 1978 |
| A history of Holy Cross Lisnaskea | Rogers, Frank | Monograph or Collective Volume | Frank Rogers | 2006 |
| A history of Holy Trinity church and parish of Rathclaren | Harvey, Brian | Monograph or Collective Volume | [The Author] | 2001 |
| A history of Holy Trinity Church, Westport | Hastings, Caitríona | Article in Journal | | 2009 |
| A history of Irish diocesan collections through a Limerick lens | Bracken, David | Article in Journal | | 2017 |
| A history of Killeevan parish, Diocese of Clogher | Forster, V. H. | Monograph or Collective Volume | [R. & S. Printers] | 1958 |
| A history of Kilmore parish, County Armagh: a journey through time | Reilly, Patricia | Monograph or Collective Volume | Trimprint | 2009 |
| A history of Milltown parish, The Birches, north-west Armagh | Coffey, H.W. | Monograph or Collective Volume | Portadown News [printer] | 1951 |
| A history of Mullingar Presbyterian Church | Lockington, John W. | Monograph or Collective Volume | The author | 2013 |
| A history of Shelagh Chapel: parish of upper Creggan in Louth and Armagh, 1838-2013 | Agnew, Una | Article in Journal | | 2013 |
| A history of St George's church, Belfast: two centuries of faith, worship and music | Walker, Brian M. | Monograph or Collective Volume | Ulster Historical Foundation | 2012 |
| A history of St Mary's church, Gowran | Kehoe, Imelda | Monograph or Collective Volume | Gowran Development association | 1992 |
| A history of St. James' Church, Belfast | | Monograph or Collective Volume | St James's Select Vestry | 2000 |
| A history of St. John's church, Donegore | Bell, Margaret | Monograph or Collective Volume | W. & G. Baird at the Greystone Press, Antrim [printer] | 1988 |
| A history of St. Peter's parish church, Antrim Road, Belfast 1900-2009 | Barton, Brian | Monograph or Collective Volume | Select Vectry of St. Peter's Parish Church | 2009 |
| A history of the British Army, 1 : [to 1730]; 2 : To the close of the Seven Years' War; 3 : From the close of the Seven Years' War to the second Peace of Paris, 1763-1793; 4 pts. 1 and 2 : From the fall of the Bastille to the Peace of Amiens, 1789-1801 [includes supplementary vol. of maps]; 5 : From the renewal of the war to the evacuation of Rio de la Plata, 1803-1807; 6 : From the expedition to Egypt, 1807, to the battle of Coruña, January, 1809; 7 : 1809-1810 [includes supplementary vol. of maps]; 8 : 1811-1812 [includes supplementary vol. of maps]; 9 : 1813-1814; 10 : 1814-1815 [includes supplementary vol. of maps]. 14 vols. | Fortescue, John William, Sir | Monograph or Collective Volume | | 1899 |
| A history of the Catholic Church for schools. Vol. 4 | Mahony, J. | Monograph or Collective Volume | Educational Company of Ireland | 1950 |
| A history of the Church of Ireland in Dunluce Parish | Boyd, Hugh Alexander | Monograph or Collective Volume | Coleraine Chronicle [Printer] | 1937 |
| A history of the Church of Ireland in Ramoan Parish | Boyd, Hugh Alexander | Monograph or Collective Volume | R. Carswell & Son | 1930 |
| A history of the Church of Ireland in St. Mary Magdalene parish, Belfast | Leathem, William S. | Monograph or Collective Volume | Nicholson & Bass | 1939 |
| A history of the Church of Ireland in the parish of Ballywillan (Portrush) | Milner, T. W. R. | Monograph or Collective Volume | Display Aids [Printer] | 1972 |
| A history of the development of St Brendan's Cathedral, Ardfert | O'Sullivan, Marie | Article in Journal | | 1988 |
| A history of the diocese of Cork : the episcopate of William Delany : 1847-1886 | Bolster, Evelyn | Monograph or Collective Volume | Tower Books | 1993 |
| A history of the diocese of Cork from the penal era to the Famine | Bolster, Evelyn | Monograph or Collective Volume | Tower Books | 1989 |
| A history of the diocese of Killaloe, Vol. 1 | Gleeson, Dermot F.Gwynn, Aubrey | Monograph or Collective Volume | Gill | 1962 |
| A history of the diocese of Raphoe | Maguire, Edward | Monograph or Collective Volume | [s.n.] | 1920 |
| A history of the Irish Church, 400-700 AD | Bradley, ThomasWalsh, J. R. | Monograph or Collective Volume | | 1991 |
| A history of the Irish church, 400-700 AD | Bradley, ThomasWalsh, John R. | Monograph or Collective Volume | Columba | 1993 |
| A history of the medieval diocese of Cloyne | MacCotter, Paul | Monograph or Collective Volume | Columba | 2013 |
| A history of the parish and churches of Marlestown | Young, Jean | Article in Journal | | 2014 |
| A history of the Parish of Kilbride (Diocese of Connor) | Cox, Robert R. | Monograph or Collective Volume | [Kilbride Parish] | 1959 |
| A hundred years on. St Bride's Church Ballintober | Brady John | Article in Journal | | 1998 |
| A Killaloe priest in France : John Baptist Walsh, (1750-1825) | Anonymous | Article in Journal | | 1964 |
| A Knight on the Tile | Corlett, Christiaan | Article in Journal | | 2018 |
| A late eighteenth-century Catholic chapel at Kilmurry, county Wicklow | Corlett, ChrisHicks, Therese | Article in Journal | | 2018 |
| A lecture on the history of the bishops of Cork and cathedral of St Fin Barre | Caulfield, Richard | Monograph or Collective Volume | Purcell & Co., Printers | 1864 |
| A lecture upon the history of the parish of Balrothery, ecclesiastical and civil : delivered by H. A. Hamilton, at a meeting of the Young Men's Christian Association, Balbriggan | Hamilton, H. A. | Monograph or Collective Volume | James Charles and Son | 1876 |
| A letter of Nicholas Slevin, 1817 | Ó Súilleabháin, Pádraig | Article in Journal | | 1968 |
| A life in the wild | De Buitléar, Éamon | Monograph or Collective Volume | Gill & Macmillan | 2004 |
| A life of Patrick Cardinal O'Donnell | Gallagher, John P. | Thesis | | 1975 |
| A life to remember | MacQuitty, William, 1905- | Monograph or Collective Volume | Quartet | 1991 |
| A list of Dominicans in Ireland, 1817 | Tenning, Hugh | Article in Journal | | 1966 |
| A list of ecclesiastics that took the oath of allegiance | Walsh, Reginald | Article in Journal | | 1912 |
| A list of freeholders of Kilfenora diocese in 1601 | McInerney, Luke | Article in Journal | | 2018 |
| A list of the altar plate at Saint Francis, Cork | Conlan, Patrick, 1940- | Article in Journal | | 1996 |
| A list of the monasteries in Connacht, 1577 | NA | Article in Journal | | 1972 |
| A list of the works doubtfully or wrongly attributed to Johannes Scottus Eriugena | Sheldon-Williams, I. P. | Article in Journal | | 1964 |
| A little known source of Irish ecclesiastical history | | Article in Journal | | 1942 |
| A look back at funeral offerings | MacLoone, John J. | Article in Journal | | 2009 |
| A loss of innocence? Television and Irish society, 1960-1972 | Savage, Robert | Monograph or Collective Volume | Manchester University Press | 2010 |
| A lost ecclesiastical site in Fingal | Baker, Christine | Article in Journal | | 2004 |
| A lost eleventh/twelfth-century crucifix figure from Kells | Harbison, Peter | Article in Journal | | 2013 |
| A man for his season : bishop Neil Farren of Derry, 1939-1973 | Canning, B. J. (Bernard J.) | Article in Journal | | 1989 |
| A man who 'did not seek the society of many': Bishop Edward McGennis (1846-1906) | Kelly, Liam | Article in Journal | | 2022 |
| A master gone .... | Standeven, Thomas L. | Article in Journal | | 1996 |
| A medieval bronze pax from Dunbrody Abbey, Co. Wexford, and the fate of ornamenta from suppressed religious houses in Ireland | Ó Floinn, Raghnall | Article in Book | | 2013 |
| A medieval carved wooden altar-support (?) from St Patrick’s well, Clonmel | Harbison, Peter | Article in Journal | | 1995 |
| A medieval holy water stoup from Newtownstalaban, County Louth | Campbell, Kieran | Article in Journal | | 2019 |
| A medieval island church in Lough Garadice | Earley, Joseph E.Ó Seaneachain, Diarmuid | Article in Journal | | 2015 |
| A medieval processional staff at Cloyne | Bourke, Cormac | Article in Journal | | 2009 |
| A meeting minds? : Margaret Aylward and Paul Cullen | Close, Anne-Marie | Article in Book | | 2011 |
| A memoir of the late Albert Blest | Motherwell, M. C. | Monograph or Collective Volume | | 1843 |
| A memorial for 'new' Kilbride parish church | Power, Patrick | Article in Journal | | 1990 |
| A Middle-Irish poem on Leinster dynasties | Ó Cuív, Brian | Article in Journal | | 1981 |
| A mission re-imagined: All Hallows College | Dalzell, Thomas G. | Article in Book | | 2012 |
| A monastery among the glens | McDermott, ConorSeaver, MattWarren, Graeme | Article in Journal | | 2018 |
| A monastic enclosure site at Clonfad, Co. Westmeath | Stevens, Paul | Article in Journal | | 2006 |
| A monastic landscape : the Cistercians in medieval Leinster | Lynch, Bridget | Thesis | | 2008 |
| A monstrance for St Macartan's cathedral | King, Richard Enda | Article in Book | | 1998 |
| A motley crew. Some anonymously written verses about the Kynoch workforce, circa 1913, (courtesy of Noel O'Cleirigh | | Article in Journal | | 2010 |
| A Mulrankin mystery | Scallan, Eithne | Article in Journal | | 2001 |
| A neglected aspect of nineteenth-century Ireland | Rogers, Patrick | Article in Journal | | 1941 |
| A new Byzantium : the stained glass windows by Harry Clarke | Bowe, Nicola Gordon | Article in Book | | 2004 |
| A New Interpretation of Irish Round Towers: Their Secular Origin and Function in the Tenth to Twelfth Centuries | Freitag, Barbara | Monograph or Collective Volume | The Edwin Mellen Press | 2018 |
| A new Irish fragment of the continuatio to Rufinus-Eusebius Historia Ecclesiastica | Breen, Aidan | Article in Journal | | 1987 |
| A new letter of Swift to Marcus Antonius Morgan, July 1735 | Rousseau, George Sebastian | Article in Journal | | 1970 |
| A new map of Ireland, civil and ecclesiastical | Beaufort, D. A. | Monograph or Collective Volume | | 1792 |
| A new perspective on Georgian building practice : the rebuilding of St Werburgh's church, Dublin (1754-59) | Severens, Kenneth | Article in Journal | | 1992 |
| A new source for the medieval history of the diocese of Armagh | Gwynn, Aubrey | Article in Journal | | 1955 |
| A new survey of Templecormick, Audleystown, County Down | MacDonald, Philip | Article in Journal | | 2008 |
| A new Wyatt church in Ireland | Moore, Jennifer | Article in Journal | | 2007 |
| A newly discovered Romanesque church on Devenish, county Fermanagh | Hamlin, Ann | Article in Journal | | 2002 |
| A newly-discovered Irish and Breton Computistica in Città del Vaticano, BAV, MS Reg. Lat. 123 | Bisagni, Jacopo | Article in Journal | | 2017 |
| A notable centenary, 1240-1940 : the friars in Wexford | Lee, Sebastian,OFM | Article in Journal | | 1941 |
| A note on Dopping's form of recantation | Hennig, John | Article in Journal | | 1965 |
| A note on medieval figure sculpture at the medieval parish church of Tullaghmelan | Nugent, Louise | Article in Journal | | 2012 |
| A note on the building of St. Cronan's Church, Roscrea | Murphy, Ignatius | Article in Journal | | 1983 |
| A note on the divisions of time in the catalogue of the saints of Ireland | Graff, Eric | Article in Book | | 2015 |
| A note on the Uí Chiaróg clerical lineage of Rathbláthmaic | McInerney, Luke
| Article in Journal | | 2012 |
| A note on the Uí Mhaoir of Drumcliff, Co. Clare | McInerney, Luke | Article in Journal | | 2011 |
| A note on Trim and Sletty | Byrne, Francis John, 1934- | Article in Journal | | 1984 |
| A notice of St. Patrick's Church, Jordanstown, in the parish of Carnmoney, and diocese of Connor, the first attempt in modern times to revive the Ancient Ecclesiastical Architecture of Ireland: together with brief memoirs of the Irish saints depicted in the windows of its chancel | | Monograph or Collective Volume | Printed for private distribution only. Strangeways & Walden (printers) | 1868 |
| A parish miscellany: a review of Donaghcloney Parish from earliest times to the present day | Haddock, Josiah | Monograph or Collective Volume | Lurgan Mail Press | 1957 |
| A pastoral instruction in the Irish language from the Right Rev. Gerald Teahan, bishop of Kerry to his diocesans in 1794 | | Article in Journal | | 1939 |
| A pastoral of Archbishop O'Reilly, 1788 | | Article in Journal | | 1961 |
| A patron for passers-by : Benedict Joseph Labre | | Article in Book | | 1998 |
| A people's church. The diocese of Achonry, the first thousand years : from the sixth to the seventeenth century | Swords, Liam | Monograph or Collective Volume | Columba | 2013 |
| A pictorial tour of Limerick Cathedral | Talbot, M. J. | Monograph or Collective Volume | Limerick Leader | 1966 |
| A plan for Irish agriculture, 1835-1845 | Kennedy, David | Article in Journal | | 1944 |
| A plaque of books : the dispersal and disappearance of the diocesan libraries of the Church of Ireland | Connolly, Margaret | Article in Book | | 2004 |
| A play supposedly fitter for the fire than for the stage : the fiction of Roger Boyle, first Earl of Orrery and the re-casting of history | Cronin, John J. (John Jeremiah), 1971- | Article in Book | | 2008 |
| A poem on the rights of the coarb of Saint Molaisse | Ó Canann, Tomás G. | Article in Journal | | 1994 |
| A political biography of William King | Fauske, Christopher J. | Monograph or Collective Volume | Pickering and Chatto | 2011 |
| A political history of the Church of Ireland, 1801-45 | Brynn, Edward Paul | Thesis | | 1968 |
| A portrait of monastic Wexford | Breen, Aidan | Article in Journal | | 2006 |
| A portrait of the rector : Father John Conmee, S.J. | Murray, Patrick | Article in Journal | | 1968 |
| A possible find of 12th century masonry | Flaherty, Pat | Article in Journal | | 2014 |
| A postscript to 1798: five letters of Myles Prendergast O.S.A. | Keogh, Dáire | Article in Journal | | 2009 |
| A pre-Famine murder in county Limerick | Curtis, Noreen | Article in Journal | | 2010 |
| A pre-Romanesque church at Slane | Manning, Conleth | Article in Journal | | 2008 |
| A preliminary account of the excavation of Clonrush church, Co. Clare | McCarthy, Karen | Article in Journal | | 1991 |
| A profile of Bernard Burke (1789-1861) | McGuire, Shane | Article in Journal | | 1987 |
| A project to re-house the St Canice's Cathedral Library from Kilkenny to Maynooth University Library | McCormack, BarbaraMurphy, Hugh | Article in Journal | | 2019 |
| A propos du synode de Whitby. Étude des observations astronomiques dans les Annales Irlandaises | Breen, AidanMc Carthy, Daniel P., 1945- | Article in Journal | | 2000 |
| A Protestant pioneer of Catholic emancipation | Rogers, Patrick | Article in Journal | | 1995 |
| A puzzle in store : the cathedral at Glendalough | Manning, Con | Article in Journal | | 2002 |
| A ramble : in search of the curious and interesting comprising : a visit to the royal dwelling-place at Rathmore, the Battlefield at Rathbeg, Donegore Moat, the Giant's Grave at Drumagorgon and to a cave-dwelling at Craighall | Smith, W. S. | Monograph or Collective Volume | Alexander Mayne [printer] | 1883 |
| A rare aspect of early Irish monasticism : the martyrdom of Donnán | Ní Chatháin, Próinséas | Article in Book | | 2010 |
| A Rare Gothic Style Medieval Stone Shrine at Claregalway Friary, Co. Galway | Higgins, Jim | Article in Journal | | 2024 |
| A reader's guide to the place-names of the United Kingdom : a bibliography of publications, 1920-1989, on the place-names of Great Britain and Northern Ireland, The Isle of Man, and the Channel Islands | Field, John, 1921-Spittal, Jeffrey | Monograph or Collective Volume | | 1990 |
| A Record of the history of Maynooth Church but principally of the Prebendaries of Maynooth and the Vicars of Laraghbryan | Blacker, George | Monograph or Collective Volume | Hodges, Smith | 1867 |
| A review of early Christianity in Ireland based on the most current archaeologial research | Ó Floinn, Raghnall | Article in Book | | 2012 |
| A riot in Kilshannig and Glantane | Caughlan, A.J. | Article in Journal | | 2010 |
| A Romanesque boss and a loaf of bread at Monaincha, Co. Tipperary | Higgins, Jim | Article in Journal | | 2015 |
| A romanesque fresco in Cormac's [sic] Chapel | Crotty, G. | Article in Journal | | 1988 |
| A romantic view of Inch Abbey, monastic site on the banks of the Quoile | Colmer, Albert W. K. | Article in Journal | | 1988 |
| A rough field : the story of Garvaghy parish, Co. Down | Musgrave, George,Thompson, Paul | Monograph or Collective Volume | [Garvaghy Parish] | 1999 |
| A rum affair in Demerera : and Guiana's Apostate Vicar, Rt. Rev. John Clancy | Fox, John | Article in Journal | | 2016 |
| A sailor on the seas of faith : the individual and the church in 'The Voyage of Máel Dúin': | Johnston, Elva | Article in Book | | 2003 |
| A second golden age : the Irish Franciscans, 1918-63 | Daly, Mary E. | Article in Book | | 2009 |
| A second Ogham stone at Clara | Manning, ConlethMoore, Fionnbarr | Article in Journal | | 1997 |
| A select prosopography of some Irish Franciscans on the continent | Fennessy, Ignatius | Article in Book | | 2009 |
| A sense of place : monastic scenes in Irish-Australian funerary monuments | O'Neill, Pamela | Article in Book | | 2008 |
| A seventeenth-century Irish version of the rule of St. Clare : glossarial Index | | Article in Journal | | 1950 |
| A short account of Rockcorry parish and church, County Monaghan and Diocese of Clogher | Sirr, W. J. | Monograph or Collective Volume | Sligo Stationery Depot | c. 1950 |
| A short ecclesiastical history of Monkstown | Quilter, Vincent | Article in Book | | 1987 |
| A short ecclesiastical survey of Golden Kilfeacle to serve as a memory of the re-opening of the church of the Blessed Sacrament, Golden | Ní Chearra, Máire | Monograph or Collective Volume | The author | 1991 |
| A short history of Donagh parish | Cotter, J. B. D. | Monograph or Collective Volume | Fermanagh Times | 1966 |
| A short history of Drumgooland parish | Rudd, C. R. J. | Monograph or Collective Volume | Outlook Press [Printer] | 1971 |
| A short history of Duneane parish | Macourt, W. A., Rev. | Monograph or Collective Volume | [Duneane Parish Church] | 1950 |
| A short history of Keady parish, its church & people | Hogg, M. B. (Matthew Banks) | Monograph or Collective Volume | Ulster Gazette | 1928 |
| A short history of Magheraculmoney parish | Baillie, F. A., Rev. | Monograph or Collective Volume | L. M. Press [printer] | 1984 |
| A short history of Rossorry parish | Rogers, Mary | Monograph or Collective Volume | Fermanagh Times [printer] | 1974 |
| A short history of Roundwood Parish Hall | Timmons, Martin C. | Article in Journal | | 2007 |
| A short history of some Dublin parishes. Parts 15-17 | Donnelly, Nicholas | Monograph or Collective Volume | Carraig Books | 1983 |
| A short history of St John's Church, Limerick | Stewart, D. (Miss) | Monograph or Collective Volume | [St John's Church] | 1952 |
| A short history of the convent chapel | Saunders, Assumpta | Article in Book | | 2010 |
| A short history of the Diocese of Elphin | Mooney, Canice | Article in Book | | 2000 |
| A Short history of the Parish of Ballyclug | Mitchell, F. J. | Monograph or Collective Volume | James A. Nelson [printer] | 1944 |
| A short history of the Parish of Dromara Ireland | Long, S.E. | Monograph or Collective Volume | Mourne Observer [Printer] | 1979 |
| A short history of the parish of Kilroot : Diocese of Connor | Rankin, Helen | Monograph or Collective Volume | Renewal Communications Ltd. | 1982 |
| A short history of Winetavern Street and its environs | Purcell, Emer | Monograph or Collective Volume | ASTI | 1996 |
| A short-title calendar of the papers of Archbishop James Butler II in archbishop's house, Thurles, 1, 1764-86 | Tierney, Mark | Article in Journal | | 1978 |
| A short-title calendar of the papers of Archbishop Michael Slattery in Archbishop's House, Thurles : Part 2, 1840-1845 | Tierney, Mark | Article in Journal | | 1990 |
| A short-title calendar of the papers of archbishop Michael Slattery in archbishop's house, Thurles : part 4, 1847 | Tierney, Mark | Article in Journal | | 1993 |
| A short-title calendar of the papers of Archbishop Michael Slattery in Archbishop's House, Thurles. Part. 5 : 1848, Part 6: 1849-1852 | Tierney, Mark | Article in Journal | | 1994 |
| A short-title calendar of the papers of Archbishop Thomas William Croke in Archbishop's House, Thurles : 2, 1886-1890 | Tierney, Mark | Article in Journal | | 1973 |
| A short-title calendar of the papers of Archbishop Thomas William Croke in Archbishop's House, Thurles : part 1, 1841-1885 | Tierney, Mark | Article in Journal | | 1971 |
| A short-title calendar of the papers of Archbishop Thomas William Croke in Archbishop's House, Thurles. Pt. 1, 1841-85; pt. 2, 1886-1890; pt. 3, 1891-1902 | | Article in Journal | | 1974 |
| A short-title calender of the papers of Archbishop William Croke in Archbishop's House, Thurles, 2 : 1886-1890 | Tierney, Mark | Article in Journal | | 1974 |
| A short-title catalogue of the papers of Archbishop Michael Slattery in Archbishop's house, Thurles. Part 3, 1846 | Tierney, M. | Article in Journal | | 1991 |
| A sixteenth-century register of Achonry | Swords, Liam | Article in Journal | | 1998 |
| A slanderous bishop (R. Wye, bishop of Cloyne, 1376) | Butler, James | Article in Journal | | 1937 |
| A Spanish Franciscan archbishop of Dublin : Fr Matthew of Oviedo, O. F. M. | Barrett, Fergus | Article in Journal | | 1941 |
| A standard realised: the Ecclesiastical Commission churches of James Pain | O'Mahony, Bernard | Article in Journal | | 2010 |
| A statistical return of Armagh diocese in 1836 | O'Kane, Louis | Article in Journal | | 1958 |
| A stone in time : saving lost medieval memories of Irish stone monuments | Ní Ghrádaigh, Jenifer | Article in Book | | 2015 |
| A stoup at Kilchreest, Co. Clare | MacMahon, Michael | Article in Journal | | 1989 |
| A strange 'Púirín' in the early monastic site at Roscam, Co. Galway | Rynne, Etienne | Article in Book | | 2012 |
| A study of accommodation movements between Presbytery and Episcopacy in the seventeenth century in Scotland, England and Ireland | Hopkirk, D. S. | Thesis | | 1946 |
| A study of ecclesiastical appointments in the province of Tuam, 1399-1477 | Cosgrave, Ruth | Thesis | | 1968 |
| A study of Irish immigration to North Hastings county | Ryan, Pauline | Article in Journal | | 1991 |
| A study of religious statistics in Ireland | Gannon, Patrick Joseph | Article in Journal | | 1921 |
| A study of St Patrick's sources | Nerney, D. S. | Article in Journal | | 1949 |
| A study of the composition of the episcopate and episcopal activities in the ecclesiastical province of Cashel, c.1400-1431 | Kelleher, Donal Anthony | Thesis | | 1988 |
| A study of the history, landscape and architecture of the Carmelite Friary of Castlelyons, Co. Cork | Lafaye, Anne-Julie | Article in Journal | | 2019 |
| A suggested origin for the figure representations on the Derrynaflan paten | Ryan, Michael | Article in Book | | 1987 |
| A suggested typology for pre-Romanesque stone churches in Ireland | Manning, Conleth | Article in Book | | 2009 |
| A summary of the archaeology of Ulster, 2 | Davies, Oliver | Article in Journal | | 1949 |
| A survey of Romanesque vaulting in Great Britain and Ireland | Hoey, Lawrence R. ; Thurlby, Malcolm | Article in Journal | | 2004 |
| A survey of the ancient churches in the county of Limerick | Westropp, Thomas Johnston | Article in Journal | | 1904 |
| A survey of the ancient things in Lady's Island district | Leighim, Mac | Article in Journal | | 1920 |
| A survey of the provenance and survival of ecclesiastical objects in Ireland from the later medieval period | Smith, Keith | Thesis | | 2013 |
| A tale of two bishops | Farry, Michael | Article in Journal | | 1991 |
| A tale of two cathedrals | Fryday, Barbara | Monograph or Collective Volume | [The author] | 1980 |
| A tale of two cathedrals Aghadoe and Ardfert. 12th-century religious reform | O'Donoghue/Ross, Elizabeth | Article in Journal | | 2014 |
| A tale of two churches : St Marck's Church, Parish of Ballymacash. | Kelly, Brian | Monograph or Collective Volume | [Parish of Ballymacash] | 1991 |
| A tale of two crosiers | Ó Floinn, Raghnall | Article in Book | | 2011 |
| A third Romanesque font from county Wexford. [The author] speculates about another unusual ecclesiastical artifact | O'Brien, Keith | Article in Journal | | 2015 |
| A thousand years of church heritage in east Galway | Harbison, Peter | Monograph or Collective Volume | Ashfield | 2005 |
| A timber watermill revealed in the ecclesiastical core of Ferns | Taylor, Kate | Article in Book | | 2023 |
| A time of change and consolidation - Ferns in the nineteenth century | Morris, Fintan | Article in Book | | 1999 |
| A time to love? | Ó Murchú, Liam, 1929-2015 | Monograph or Collective Volume | Gill & Macmillan | 1986 |
| A toasting glass of the Cork True Blue Volunteers | MacLeod, Catriona | Article in Journal | | 1982 |
| A tour of the old St. Michael's Church, Dun Laoghaire | Clarke, Carl | Article in Journal | | 2009 |
| A transcription and notes towards an edition of the Zoilomastix of Philip O'Sullivan Beare (Uppsala University Library, MS.H.248) | O'Donnell, Thomas J., Rev. | Thesis | | 1941 |
| A treasury of churches. North Cork churches of James Pain | Power, Bill | Article in Journal | | 2004 |
| A trip through the history of Dalkey Island | Curran, Peadar | Article in Journal | | 2023 |
| A troubled see : memoirs of a Derry bishop | Daly, Edward | Monograph or Collective Volume | Four Courts | 2011 |
| A twelfth-century indulgence granted by an Irish bishop at Bath priory | Flanagan, Marie-Therese | Article in Book | | 2011 |
| A verse on succession to ecclesiastical office | Breatnach, Liam | Article in Book | | 2007 |
| A visual window on the church's past : the RCBL's architectural drawings digitising project | O'Neill, Michael | Article in Journal | | 2014 |
| A walking tour of Dublin churches | Anonymous | Monograph or Collective Volume | Veritas | 1988 |
| A walking tour of Dublin churches | Martin, Liam C. | Monograph or Collective Volume | Veritas | 1988 |
| A window (and door) into medieval Dublin. Excavation and display of medieval architectural remains under a supermarket floor in Aungier Street | Wigboldus,Leanne | Article in Journal | | 2022 |
| A wooden key to open Heaven's door : lessons in practical Catholicism from St Anthony's College, Louvain | Ryan, Salvador | Article in Book | | 2009 |
| A.J. Potter (1918-1980) : the career and creative achievement of an Irish composer in social and cultural context | Zuk, Patrick | Thesis | | |
| Abandoned churches of Ireland | Blake, Tarquin | Monograph or Collective Volume | Collins Press | 2015 |
| Abbatial contention in Armagh in the eighth and ninth centuries : the 'Comarbada Patraic' as a source | Haggart, Craig | Article in Journal | | 2003 |
| Abbesses, minor dynasties and kings in clericatu : perspectives of Ireland, 700-850 | Bhreathnach, Edel | Article in Book | | 2001 |
| Abbeymahon and Kilmahon, two graveyards in Skibbereen | Casey, William | Article in Journal | | 2015 |
| About Killead and Gartree | | Monograph or Collective Volume | [The author] | 2003 |
| Abraham Brownrigg. Carlovian and eminent churchman | Murphy, Rory | Article in Journal | | 1996 |
| Absolutions and acts of disobedience : excommunication and society in fourteenth-century Armagh | Gundacker, Jay | Article in Journal | | 2009 |
| Accessions to repositories 1994 | Anonymous | Article in Journal | | 1996 |
| Accessions to repositories 1995 | Anonymous | Article in Journal | | 1997 |
| Accommodating clergymen : Church of Ireland ministers and their houses in the north of Ireland, c. 1600-1870 | Roulston, William J. | Article in Book | | 2006 |
| Accommodations with changing orders : the Church of Ireland, 1685-92 | Barnard, T. C. (Toby Christopher) | Article in Book | Four Courts Press | 2025 |
| Achonry and its churches: from the sixth century to the third millenium | Swords, Liam | Monograph or Collective Volume | Éditions du signe | 2007 |
| Acton Parish Church, Poyntzpass | Best, Barbara | Article in Journal | | 2000 |
| Actors and angels in the Architecture: Medieval men in feathered suits at Sligo Abbey and elsewhere in Ireland | Higgins, Jim | Article in Journal | | 2020 |
| Acts of Archbishop Colton in his metropolitan visitation of the diocese of Derry, A.D. MCCCXCVII, with a rental of the see estates at that time | | Monograph or Collective Volume | | 1850 |
| Ad Candidam Casam : an examination of St. Ninian's position as a father of British monasticism | Luff, S. G. A. | Article in Journal | | 1953 |
| Adair through the ages | | Monograph or Collective Volume | | no date given |
| Adare Church | Jackson, Robert Wyse, Rev. | Monograph or Collective Volume | [Adare Parish] | [1970?] |
| Adare Franciscan friary | Conlan, Patrick, 1940- | Article in Journal | | 2012 |
| Additional Patrick Darcy papers: correspondence and legal opinions, 1632, 1661-2; presented by Bríd McGrath | Darcy, Patrick, 1598-1668 | Article in Journal | | 2017 |
| Additions to the Map of Monastic Ireland : the south-west | Hurley, V. | Article in Journal | | 1981 |
| Address delivered at the jubilee year celebrations in St. Patrick's Church, Parteen - 31 December 1999 | Ó Riain, Donal | Article in Journal | | 2002 |
| Address delivered at the Opening of the Synod of Clogher, on Friday, September 27th,1895 | Stack, Charles Maurice | Monograph or Collective Volume | William Mc Gee | 1895 |
| Address of the bishop and clergy of Cloyne to the Queen, 1711 | | Article in Journal | | 1941 |
| Adelaide Memorical Church of Christ the Redeemer | McGregor, Eileen | Article in Journal | | 2005 |
| Adiutor laborantium : a poem by Adomnán? | Márkus, Gilbert | Article in Book | | 2010 |
| Adomnán among the bird-hunters : tradition and creativity in 'Beannachadh Seilg' | Low, Mary | Article in Book | | 2010 |
| Adomnán and Donegal | Lacey, Brian | Article in Book | | 2010 |
| Adomnán in medieval Gaelic literary tradition | Clancy, Thomas Owen | Article in Book | | 2010 |
| Adomnán of Iona : theologian, lawmaker, peacemaker | | Monograph or Collective Volume | Four Courts | 2010 |
| Adomnán's voyaging saint : the cult of Cormac ua Liatháin | Tipp, Dan,Wooding, Jonathan M., | Article in Book | | 2010 |
| Adomnán, two saints, and the paschal controversy | Márkus, Gilbert | Article in Journal | | 2017 |
| Adomnán’s Lex Innocentium and the laws of war | Houlihan, James W. | Monograph or Collective Volume | Four Courts Press Ltd | 2020 |
| Adult education through community radio : the example of community radio Castlebar | Stanton, Pat | Article in Book | | 2007 |
| Aegidius Chaissy, O.F.M., and James Ussher, Protestant bishop of Armagh | Giblin, Cathaldus | Article in Journal | | 1956 |
| Aerial ships and underwater monasteries : the evolution of a monastic marvel | Carey, John | Article in Journal | | 1992 |
| After the Vikings : Medieval archaeology of the Isle of Man, 1100-1550 | Davey, Peter | Monograph or Collective Volume | Manx National Heritage | 2013 |
| Afterword : the re-ordering of the Honan chapel | Ó Suilleabháin, Gearóid | Article in Book | | 2004 |
| Afterworld spaces in medieval visionary texts of Irish provenance | Benz, MaximilianWeitbrecht, Julia | Article in Book | | 2017 |
| Agha Church : architectural iconography and building ambiguities | Ní Ghrádaigh, Jenifer | Article in Book | | 2008 |
| Aghaboe, c.600-1800 A.D. | O'Neill, Timothy, 1947- | Article in Journal | | 2004 |
| Aghabog Church of Ireland survey 1824 | MacDonald, Brian | Article in Journal | | 1997 |
| Agherton Parish, Portstewart : a brief history | Thomas, Avril | Monograph or Collective Volume | Display Aids | 1996 |
| Aghowle church, Co. Wicklow | Corlett, Christiaan | Monograph or Collective Volume | Wordwell | 2011 |
| Agitate, educate, organise : Dundalk FM 100 | Byrne, Alan | Article in Book | | 2007 |
| Ailbe Ua Maél Muaid, Uí Chennselaig and the Vitae Sanctorum Hiberniae | Mac Shamhráin, Ailbhe | Article in Book | | 2013 |
| Ainmneacha na nDioghaise in Éirinn, 1716 | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1954 |
| Airgialla churches and churches in Donegal | Silke, John J. | Article in Journal | | 1988 |
| Áitainmneacha na Gaillimhe | Ó Máille, Tomás S. | Article in Book | | 1984 |
| Alarms and excursions in Lisbon under Castilian domination : the case of Captain Richard Butler | Williams, Michael E. | Article in Journal | | 1990 |
| Albrecht Suerbeer, archbishop of Armagh | Conlan, Patrick, 1940- | Article in Journal | | 2004 |
| Aldfrith of Northumbria and the Irish genealogies | Ireland, Colin | Article in Journal | | 1991 |
| Aldhelm of Malmesbury's social theology : the barbaric heroic ideal christianised | Dempsey, G. T. | Article in Journal | | 2001 |
| Alguns aspectos do monasticismo irlandês, através da Historia ecclesiastica gentis Anglorum do Ven. Beda | Schorer, M. T. | Article in Journal | | 1954 |
| Alien priories in medieval Ireland : history and archaeology | Stout, Geraldine | Article in Book | | 2024 |
| All Saints Church, Clooney 1867-1967 : centenary news | Anonymous | Monograph or Collective Volume | [All Saints Church, Clooney]|[Printed by A. Emery] | 1967 |
| All Saints Church, Killasser, 1868-2018 : a parish and its people | | Monograph or Collective Volume | Killasser & Callow Heritage Society | 2018 |
| All Saints Church, Mullingar: notes concerning the history of the church since 1814 | Winckworth, Trevor E. | Monograph or Collective Volume | [All Saints Church] | 1989 |
| All Saints' Church, Blackrock, County Dublin | Howley, James | Article in Journal | | 2010 |
| All Saints, Cootehill, 1819-2019 : a history of the church, the parish and its people | Smyth, Jonathan A. | Monograph or Collective Volume | Cumann Seanchais Bhreifne | 2019 |
| All Saints, Drimoleague, and Catholic visual culture under Bishop Cornelius Lucey in Cork, 1952-9 | Butler, Richard J. | Article in Journal | | 2015 |
| All were together, seemingly conspiring | Matthiesen, Leroy T. | Article in Journal | | 2005 |
| Alsace and Ireland : medieval links | O'Doherty, Bríd | Article in Journal | | 1991 |
| Altars in Ireland, 1050-1200 : a survey | Murray, Griffin | Article in Journal | | 2010 |
| Alternative establishments? Insular Catholicism and Presbyterianism | Armstrong, RobertÓ hAnnracháin, Tadhg | Article in Book | | 2013 |
| Altinure Church | Donnelly, Philip | Article in Journal | | 2002 |
| Amnesia and recovery of the Great War in plays by McGuinness and Barry | O'Malley, Seamus | Article in Journal | | 2012 |
| An 18th century episcopal instruction for Ossory | Costello, Con | Article in Journal | | 1983 |
| An account of the history of Ferns Cathedral Church | McFall, T. C. H. | Monograph or Collective Volume | A. P. C. K. | 1954 |
| An age of modernization, 1598-1690 | Gillespie, Raymond | Article in Book | | 2009 |
| An allegorical interpretation of the monastic voyage narratives in Adamnán's 'Vita Colombae' | Follett, Westley | Article in Journal | | 2006 |
| An alternative establishment : the evolution of the Irish Catholic hierarchy, 1600-49 | Ó hAnnracháin, Tadhg | Article in Book | | 2013 |
| An ancient chest in St Patrick's Cathedral, Dublin | O'Farrell, Fergus | Article in Book | | 1998 |
| An ancient Irish parish : past and present, being the parish of Donaghmore, County Down | Cowan, J. Davidson | Monograph or Collective Volume | David Nutt | 1914 |
| An appeal of the Ulster Franciscans against Blessed Oliver Plunket | Jennings, Brendan | Article in Journal | | 1956 |
| An archaeological assessment of Kilmore Old Cathedral, County Cavan | Giacometti, Antoine ; Cronin, John J. ; Hughes, Sam | Article in Book | Cumann Seanchais Bhreifne | 2025 |
| An archaeological perspective on female monasticism in the Middle Ages in Ireland | Collins, Tracy | Article in Book | | 2015 |
| An archaeological survey at the Church of Kildemock, Millockstown, County Louth | Brady, Conor | Article in Journal | | 2016 |
| An archaeological survey of early medieval settlement in the parish of Mullagh, County Cavan: reconstructing an early medieval rural landscape | Farrelly, Johann | Article in Journal | | 2014 |
| An archaeological survey of St. Audoen's church, Cornmarket | Crawford, John, 1953-2011 | Article in Journal | | 1996 |
| An architectural history of Boyle Abbey and its cloistral buildings | Stalley, Roger | Article in Book | | 2022 |
| An architectural history of Christ Church Cathedral Dublin c.1540-1870 | Kinsella, Stuart | Thesis | | 2009 |
| An architectural history of the Church of Ireland | O'Neill, Michael | Monograph or Collective Volume | Church of Ireland Publishing | 2022 |
| An article on the foundation and endowment of the Church of Trim, 432 A.D. | Athey, Rowland | Article in Journal | | 1955 |
| An Augustinian Provincial Chapter at Fatherd, 1649 | Fenning, Hugh | Article in Journal | | 2006 |
| An Austrian fragment of a life of St. Patrick | Bieler, Ludwig | Article in Journal | | 1961 |
| An Board Náisiúnta agus an Ghaeilge, 1831-70 | Ó Raifeartaigh, T. | Article in Journal | | 1949 |
| An Bord Náisiúnta agus an Ghaeilge, 1831-70 | Ó Raifeartaigh, T. | Article in Journal | | 1949 |
| An Cairdinéal Tomás Ó Fiaich agus comhthéacs an chreidimh in Éirinn | Ó Maolfabhail, Donncha | Article in Journal | | 1992 |
| An chraoltóireacht seirbhíse poiblí i bPoblacht na hÉireann | Ó Drisceoil, Fachtna | Article in Journal | | 1995 |
| An Dochtúir Ó Duinnshléibhe agus an Mhidheamhain | Ó Ceallaigh, Brian | Article in Journal | | 1946 |
| An Dochtúir Sár-Oirbhidneach Ó Síothcháin, Árd-Easbog, agus and Ghaedhealg | Ó Cadhla, Pádraig | Article in Journal | | 1945 |
| An eaglais agus filí na scol | Simms, Katharine | Article in Book | | 1994 |
| An early Christian ecclesiastical site at Carrowrevagh, near Carrowkennedy, county Mayo | Corlett, Christiaan | Article in Journal | | 1997 |
| An early Christian hoard from Derrynaflan, Co. Tipperary | Ryan, Michael | Article in Journal | | 1980 |
| An early ecclesiastical enclosure at Kilmore, Ballingeary, Co. Cork | Hamer, JerryO'Sullivan, JerrySharpe, LornaTompsett, Gary | Article in Journal | | 2000 |
| An early ecclesiastical site investigated at Drumgath, Co. Down | Craig, DavidDickson, BarbaraWelsh, Harry | Article in Journal | | 2016 |
| An early list of county Donegal parishes | Ó Gallachair, Pádraig | Article in Journal | | 1974 |
| An early medieval church site at Kilbree Upper, Sheeaune, Westport, Co. Mayo | Irwin, Marian | Article in Journal | | 1998 |
| An early medieval monastic watermill on High Island | Marshall, Jenny WhiteRourke, Grellan D.Rynne, Colin | Article in Journal | | 1996 |
| An ecclesiastical enclosure in the townland of Grange, parish of Holmpatrick | Mac Shamhráin, Ailbhe | Article in Book | | 2004 |
| An ecclesiastical history of Great Britain, chiefly of England, from the first planting of Christianity to the end of the reign of King Charles the Second, with a brief account of the affairs of religion in Ireland. 2 vols. | Collier, Jeremy | Monograph or Collective Volume | | 1708 |
| An ecclesiastical history of Ireland, from the introduction of Christianity into that country, to the year 1829. 2 vols. | Brenan, M. J. | Monograph or Collective Volume | | 1829 |
| An ecclesiastical site at Cloonogher, Kilteevan | Ryan, Hazel A. | Article in Journal | | 1992 |
| An ecclesiastical trial. An examination of the trial, in 1776, of the Rev. Edward Smyth, curate of Ballyculter parish | Kennedy, W. E. | Article in Journal | | 1989 |
| An edition, with introduction and notes, of the register of Archbishop Mey; and a calendar of the register of Archbishop Prene | Quigley, W.G.H.Roberts, E.F.D. | Thesis | | 1955 |
| An eighteenth century Kerry schoolmaster in Wexford | Ó Súilleabháin, Pádraig | Article in Journal | | 1966 |
| An eighteenth-century antiquary : the sketches, notes and diaries of Austin Cooper, 1759-1830 | | Monograph or Collective Volume | Falconer | 1942 |
| An enduring monument | Unkel, Jill | Article in Journal | | 2005 |
| An English bishop afloat in an Irish see : John Bale, bishop of Ossory, 1552-3 | Tong, Stephen | Article in Journal | | 2018 |
| An enquiry respecting the history of three of the ancient parish churches of Kilkenny known as St. Patrick's, St. Maul's, and St. Rock's, with some notes on the origin of the word "Gillapadraig", assumed as a patronymic by the kings of Ossory in the 10th century | Hogan, John | Article in Journal | | 1883 |
| An essay ... on ecclesiastical finance, as regards the Roman Catholic church in Ireland | Croly, D. O. | Monograph or Collective Volume | | 1834 |
| An Examination of the Church and Mauloleum, Kilmeane, Co. Roscommon | Lough, SeamusMacklin, JohnSweetman, P. DavidTimoney, Martin A | Article in Book | | 2023 |
| An example of the Gothic style in Ireland | Dunne, Mildred | Article in Book | | 1998 |
| An extract from Bishop David Moriarty's diary, 1856 | O'Shea, Kieran | Article in Journal | | 1984 |
| An fhéile i scéalta cráifeacha an bhéaloidis | Ó Héalaí, Pádraig | Article in Book | | 2000 |
| An Gaeilge agus an Raidió Pobail : the Irish language and community radio | Ní Choisdealbha, Lisa | Article in Book | | 2007 |
| An Ghaeilge agus an Ghàidhlig: i dtreo na hanailíse contrártha. | Ó hÚrdail, Roibeárd | Article in Book | | 1983 |
| An historical overview of the period | Milne, Kenneth | Article in Book | | 2019 |
| An illustrated history of English plate, ecclesiastical and secular in which the development of form and decoration in the silver and gold work of the British Isles from the earliest known examples to the latest of the Georgian period is delineated and described. 2 vols. | Jackson, C. J. | Monograph or Collective Volume | | 1911 |
| An incident between the French Canadians and the Irish in the Diocese of Maine in 1906 | Woodbury, Kenneth B. | Article in Journal | | 1967 |
| An index to the Rev. William Carrigan's The history and antiquities of the diocese of Ossory : compiled by Helen Litton in association with the Canon Carrigan Centenary Committee of the Diocese of Ossory | | Monograph or Collective Volume | Diocese of Ossory | 2005 |
| An insular tradition of ecclesiastical law : fifth to eighth century | Flechner, Roy | Article in Book | | 2009 |
| An interesting plaque at Dysert Parish Church | Breen, Martin | Article in Journal | | 2018 |
| An interrogation carried out in Cork in 1600 by the Ecclesiastical High Commission for Recusancy : a document from Laud ms. 612, Bodleian Library Oxford | Sheehan, A. J. (Anthony J.) | Article in Journal | | 1984 |
| An introduction to Irish high crosses | Richardson, HilaryScarry, John | Monograph or Collective Volume | Mercier Press | 1990 |
| An introduction to the architectural heritage of Cork City | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. An Roinn Ealaíon, Oidreachta agus Gaeltachta = Dept. of Arts, Heritage, and the Gaeltacht. National Inventory of Architectural Heritage | 2012 |
| An introduction to the architectural heritage of County Carlow. Réamhrá ar oidhreacht ailtireachta Chontae Cheratharlaigh | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Government | 2003 |
| An introduction to the architectural heritage of County Cavan | National Inventory of Architectural Heritage | Monograph or Collective Volume | National Inventory of Architectural Heritage | 2014 |
| An introduction to the architectural heritage of County Clare | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2009 |
| An introduction to the architectural heritage of County Donegal | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2014 |
| An introduction to the architectural heritage of County Galway | National Inventory of Architectural Heritage | Monograph or Collective Volume | Stationery Office for National Inventory of Architectural Heritage | 2011 |
| An introduction to the architectural heritage of County Kerry. Réamhrá ar oidhreacht ailtireachta Chontae Chiarraí | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2003 |
| An introduction to the architectural heritage of County Kildare. Réamhrá ar oidhreacht ailtireachta Chontae Chill Dara | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2003 |
| An introduction to the architectural heritage of County Kilkenny | Ireland. Department of the Environment, Heritage and Local GovernmentNational Inventory of Architectural Heritage | Monograph or Collective Volume | The Stationery Office for Dept. of the Environment, Heritage and Local Government, National Inventory of Architectural Heritage; Dúchas, The Heritage Service | 2006 |
| An introduction to the architectural heritage of County Laois. Réamhrá ar oidhreacht ailtireachta Chontae Laoise | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2003 |
| An introduction to the architectural heritage of County Leitrim | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dept. of the Environment and Local Government, National Inventory of Architectural Heritage; Dúchas, The Heritage Service | 2004 |
| An introduction to the architectural heritage of County Longford | National Inventory of Architectural Heritage | Monograph or Collective Volume | National Inventory of Architectural Heritage | 2010 |
| An introduction to the architectural heritage of County Louth | National Inventory of Architectural Heritage | Monograph or Collective Volume | Stationery Office for Dept. of the Environment and Local Government, National Inventory of Architectural Heritage; Dúchas, The Heritage Service | 2008 |
| An introduction to the architectural heritage of County Mayo | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2013 |
| An introduction to the architectural heritage of County Meath. Réamhrá ar oidhreacht ailtireachta Chontae na Mí | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2003 |
| An introduction to the architectural heritage of County Monaghan | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2013 |
| An introduction to the architectural heritage of County Offaly | Ireland. Department of the Environment, Heritage and Local GovernmentNational Inventory of Architectural Heritage | Monograph or Collective Volume | The Stationery Office for Dept. of the Environment, Heritage and Local Government, National Inventory of Architectural Heritage; Dúchas, The Heritage Service | 2006 |
| An introduction to the architectural heritage of County Roscommon | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dept. of the Environment and Local Government, National Inventory of Architectural Heritage; Dúchas, The Heritage Service | 2004 |
| An introduction to the architectural heritage of County Sligo | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Government | 2007 |
| An introduction to the architectural heritage of County Waterford | Dúchas The Heritage Service.Ireland. Dept of the Environment, Heritage and Local GovernmentNational Inventory of Architectural Heritage | Monograph or Collective Volume | National Inventory of Architectural Heritage | 2004 |
| An introduction to the architectural heritage of County Westmeath | National Inventory of Architectural Heritage | Monograph or Collective Volume | Department of Environment, Heritage and Local Government: National Inventory or Architectural Heritage | 2007 |
| An introduction to the architectural heritage of County Wexford | National Inventory of Architectural Heritage | Monograph or Collective Volume | National Inventory of Architectural Heritage | 2010 |
| An introduction to the architectural heritage of County Wicklow | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2004 |
| An introduction to the architectural heritage of Dublin north city | Kelly, Merlo | Monograph or Collective Volume | An Roinn Ealaíon, Oidhreachta agus Gaeltachta. Department of Arts, Heritage and the Gaeltacht | 2015 |
| An introduction to the architectural heritage of East Cork | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2009 |
| An introduction to the architectural heritage of Fingal. Réamhrá ar oidhreacht ailtireachta Fhine Gall | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2003 |
| An introduction to the architectural heritage of Limerick City | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2008 |
| An introduction to the architectural heritage of North Cork | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2009 |
| An introduction to the architectural heritage of North Tipperary | National Inventory of Architectural Heritage | Monograph or Collective Volume | Dúchas The Heritage Service.|Ireland. Dept of the Environment, Heritage and Local Governmen | 2006 |
| An introduction to the architectural heritage of South Dublin County; Réamhrá ar oidhreacht ailtireachta Chontae Bhaile Átha Cliath Theas | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage. Dúchas, the Heritage Service | 2003 |
| An introduction to the architectural heritage of South Tipperary | National Inventory of Architectural Heritage | Monograph or Collective Volume | National Inventory of Architectural Heritage | 2007 |
| An introduction to the architectural heritage of West Cork | National Inventory of Architectural Heritage | Monograph or Collective Volume | Ireland. Dept of the Environment, Heritage and Local Government. National Inventory of Architectural Heritage | 2011 |
| An introduction to the geometry used in the layout of Clonfert portal | Cunniffe, Christy | Article in Book | | 2012 |
| An introduction to Ulster architecture | Dixon, Hugh | Monograph or Collective Volume | | 1975 |
| An investigation of the material culture of Donegal Franciscan friaries in the late sixteenth and seventeenth centuries | Smith, Kevin | Article in Journal | | 2011 |
| An Irish apostle : articulating and actualising apostolicity in the early Irish church | Lordan, Shane | Thesis | | 2012 |
| An Irish Benedictine adventure : Dom Francis Sweetman (1872-1953) and Mount St Benedict, Gorey | Bellenger, Dominic Aidan | Article in Book | | 1989 |
| An Irish bishop in penal times : the chequered career of Sylvester Lloyd, OFM, 1680-1747 | Fagan, Patrick, 1922-2011 | Monograph or Collective Volume | Four Courts | 1993 |
| An Irish counter-reformation bishop : John Roche | Corish, Patrick J. | Article in Journal | | 1959 |
| An Irish Dimension to a British Kulturkampf | Barr, Colin | Article in Journal | | 2005 |
| An Irish family between assimilation and revolution : the Keatings of Poitiers, 1777-1795 | Jahan, Sébastien | Article in Book | | 2003 |
| An Irish father and son: contrasting lives | Villers, David H. | Article in Journal | | 2008 |
| An Irish genealogical source : a guide to church records | | Monograph or Collective Volume | Ulster Historical Foundation | 1994 |
| An Irish grave on Monte Cassino : Father Benjamin Joseph Braughall, pilgrim priest of Kildare (1776-1847) | Concannon, Helena | Article in Journal | | 1947 |
| An Irish making of Europe (Early and high middle ages) | Oschema, Klaus | Article in Book | | 2017 |
| An Irish seventeenth-century translation of the rule of St. Clare | | Article in Journal | | 1948 |
| An léann eaglasta in Éirinn 1000-1200 | | Monograph or Collective Volume | | 1982 |
| An léann eaglasta san eaglais phrotastúnach in Éirinn, 1700-1900 | Ó Cuinn, Cossleth | Article in Book | | 1988 |
| An O'Donovan source | Ó Fiannachta, Pádraig | Article in Journal | | 1966 |
| An Odd Death for a Pig | Nagy, Joseph Falaky | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| An old Armagh See rental | Love, H. W. | Article in Journal | | 1965 |
| An old Dublin vestry book | Leslie, J. B. (James Blennerhassett) | Article in Journal | | 1943 |
| An old Irish catechism from Oriel | McPolin, Francis | Article in Journal | | 1947 |
| An old Irish silver chalice | Gumley, E.M. | Article in Journal | | 1932 |
| An Old-Irish metrical rule | | Article in Journal | | 1904 |
| An ornament to the city : Holy Trinity Church & the Capuchin Order | Curtin-Kelly, Patricia | Monograph or Collective Volume | History Press Ireland | 2015 |
| An tArdeaspag Mac hÉil agus an Cairdinéal Ó Cuilinn | Ó Báin, Liam | Article in Book | | 1983 |
| An tAthair Mícheál Ó Gríofa | Ó Comhraí, Cormac | Article in Book | | 2008 |
| An tEasbog Tomás Mhac Comhain (1831-1847) | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1946 |
| An tEasbog Tomás Ó Coisdealbha, 1786-1831 | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1945 |
| An Ulster parish : being a history of Donaghcloney (Waringstown) | Atkinson, Edward Dupré | Monograph or Collective Volume | Hodges, Figgis | 1898 |
| An unnoticed constructional feature in insular church and castle building | Rynne, Etienne | Article in Book | | 1982 |
| An unpublished letter of St Oliver Plunkett | | Article in Journal | | 1975 |
| An unrecorded ecclesiastical enclosure at Ballyallaban, Co. Clare | Moore, FionnbarrSheehan, John | Article in Journal | | 1981 |
| An urban place in rural Ireland : an historical ethnography of domination, 1841-1989 | Silverman, Marilyn | Article in Book | | 1993 |
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| Ancient altar-plate and other furnishings of the church of Armagh | Millett, Benignus | Article in Journal | | 1958 |
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| Ancient connections : archaeological investigations at St Mary's Abbey, Ferns, Co. Wexford | Shine, Denis ; Diana, Annamaria ; Mandal, Stephen ; O'Meara, Daniel | Article in Book | | 2024 |
| Ancient crosses in Barony of Ballaghkeen | Ranson, Joseph | Article in Journal | | 1948 |
| Ancient Irish architecture : a monograph of Cormac's Chapel, Cashel, Co. Tipperary | Hill, Arthur | Monograph or Collective Volume | [s.n.] | 1874 |
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| And curiously enough... Discovering the quirkier side of Westmeath... | Sharkey, Olive | Article in Journal | | 2017 |
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| Anglican Ireland : a brief history and explanation of the Church of Ireland to mark the meeting of Anglican primates of Ireland, 1991 | Gibson-Harries, Elizabeth | Monograph or Collective Volume | [s.n.] | 1991 |
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| Armoy excavations adjusting your sites : the ecclesiastical enclosure at Armoy, Co. Antrim | Hurl, Declan | Article in Journal | | 1998 |
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| Aspects of dynastic kingship in early medieval Ireland | Irwin, Philip Todd | Thesis | | |
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| Ballintubber Abbey: notes on its history | Blake, Martin J. | Article in Journal | | 1903 |
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| Ballymote lights up with Community Radio. A contemporary account of events in 1986 | Banks, Alfie | Article in Journal | | 2017 |
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| Baltinglass : abbey of the three rivers | Carville, Geraldine | Monograph or Collective Volume | | 1984 |
| Bangor Abbey through fourteen centuries | Hamilton, James | Monograph or Collective Volume | [Bangor Abbey] | 1958 |
| Bantry Library, Co. Cork | Butler, Richard | Article in Journal | | 2013 |
| Baptisms of the first Presbyterian church of Newry, Co. Down, 1809-1822 | Ffolliott, Rosemary | Article in Journal | | 1979 |
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| Barnycarroll, Co. Mayo. A chapel and 17th century holy water font | Guinan, Bernard | Article in Journal | | 2010 |
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| Bede's plures de Scottorum regione: The Irish in the Historia Ecclesiastica Gentis Anglorum | McCann, Sarah | Thesis | | 2013 |
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| Begging, charity and religion in pre-Famine Ireland | McCabe, Ciarán | Monograph or Collective Volume | Liverpool University Press | 2018 |
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| Behind animals, plants and interlace : Salin's style II on Christian objects | Wamers, Egon | Article in Book | | 2009 |
| Beïtrage der frühmittelalterlichen Iren zum gemeinsamen europäischen Haus | Von Kottje, Raymund | Article in Journal | | 1992 |
| Bejewelling Jerusalem: Architectural adornment and symbolic significance in the early Church in the Christian West | Boulton, Meg | Article in Book | | 2017 |
| Belach Conglais and the diocese of Cork, AD 1111 | Candon, Anthony | Article in Journal | | 1989 |
| Belfast | Jones, Emrys | Article in Book | | 1957 |
| Belfast : the origin and growth of an industrial city | | Monograph or Collective Volume | British Broadcasting Corporation | 1967 |
| Belfast Cathedral : the ornament | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1927 |
| Belfast Cathedral: the decoration | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1926 |
| Benedictine bishops in medieval Ireland | Varebeke, H. J. de | Article in Book | | 1967 |
| Benedictine influence in Ireland in the late eleventh and early twelfth century : a reflection | Bhreathnach, Edel | Article in Journal | | 2012 |
| Berkeley polémiste : des Sermons sur l'obéissance assive (1712) aux Maximes sur le patriotisme (1750) | Charles, Sébastien | Article in Journal | | 2008 |
| Berkeley's doctrine of the perceivable | Luce, A. A. | Article in Journal | | 1942 |
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| Betha Adamnáin | Best, R. I. (Richard Irvine), 1872-1959 | Article in Book | | 1908 |
| Bethlehem, Athlone and Killinure : the Poor Clares and the Franciscans in the seventeenth century | Cunningham, Bernadette | Article in Book | | 2015 |
| Between reformation and enlightenment : Presbyterian clergy, religious liberty and intellectual change | Coffey, John | Article in Book | | 2013 |
| Between two rivers : Julianstown Union of Parishes | Nelson, Jim | Monograph or Collective Volume | Old Drogheda Society | 2002 |
| Beyond "Plastic Paddy" : a re-examination of the second-generation Irish in England | Campbell, Sean | Article in Journal | | 1999 |
| Beyond 'Plastic Paddy' : a re-examination of the second-generation Irish in England | Campbell, Sean | Article in Book | | 2000 |
| Beyond ethnography : primary data sources in the urban anthropology of Northern Ireland | Jenkins, Richard | Article in Book | | 1993 |
| Beyond the studio : a history of BBC Northern Ireland | Bardon, Jonathan, 1941- | Monograph or Collective Volume | Blackstaff Press | 2000 |
| Beyond ‘plastic paddy’ : a re-examination of the second-generation Irish in England | Campbell, Sean | Article in Journal | | 1999 |
| Bibliography of articles written by Rev. John Brady, diocesan historian, Co. Meath | | Article in Journal | | 1960 |
| Bicentenary of St Joseph's Church, Tinryland, Co. Carlow | Byrne, Maureen | Article in Journal | | 2020 |
| Bicycle highway : celebrating commnunity radio in Ireland | | Monograph or Collective Volume | Liffey Press | 2007 |
| Birr the monastic city, St. Brendan of the Water Cress | Carville, Geraldine | Monograph or Collective Volume | Kestrel Books | 1997 |
| Birth of an airport parish : the early years of St Senan’s parish, Shannon, 1945-88 | Ó Donnabháin, Diarmaid | Monograph or Collective Volume | Columba Press | 2014 |
| Births, marriages and burials and other records of the Irish in America in and about the eighteenth century | O'Brien, Michael J. | Article in Journal | | 1913 |
| Bishop Barrett and King Richard III | O'Neill, Thomas Patrick | Article in Book | | 1991 |
| Bishop Bramhall's replies to queries raised by commissioners concerning the temporalities of Derry diocese | | Article in Journal | | 1943 |
| Bishop Cornelius Egan's diocesan reports to Rome | O'Shea, Kieran | Article in Journal | | 1979 |
| Bishop Dive Downes' visitation of his Diocese, 1699 | | Article in Journal | | 1909 |
| Bishop Dopping's visitation of the diocese of Meath 1693 | Loupès, Philippe | Article in Journal | | 1988 |
| Bishop Francis Hutchinson : his Irish publications and his library | Wheeler, Gordon | Article in Book | | 1996 |
| Bishop Francis Moylan | O'Farrell, Josephine | Thesis | | 1974 |
| Bishop George Montgomery’s Survey of the parishes of Derry diocese : a complete text from c.1609 | Jefferies, Henry A. | Article in Journal | | 1996 |
| Bishop J. Stock of Killala and Achonry - 1798-1810 | Coote-Duggan, John | Article in Journal | | 1983 |
| Bishop John Brenan, the intimate of Blessed Oliver | Power, P. | Article in Book | | 1937 |
| Bishop John Cantwell | Connell, Paul | Article in Book | | 2002 |
| Bishop John Keys O'Doherty 1889-1907 | Canning, B. J. (Bernard J.) | Article in Journal | | 2006 |
| Bishop John O'Molony : a great prelate of the penal days | G., J. S. | Article in Journal | | 1937 |
| Bishop John O'Molony of Killaloe (1617-1702) | Halpin, Sean | Article in Journal | | 1989 |
| Bishop Keeffe of Kildare and Leighlin, A.D. 1702-87 | Brenan, Martin | Article in Journal | | 1937 |
| Bishop Mant and the Down and Connor and Dromore Church Architecture Society : the influence of the Oxford and Evangelical movements, the Cambridge Camden Society and the Gothic Revival on the Church of Ireland and its architecture in Ulster 1838 - 1878 | McBride, Stephen Richard | Thesis | | |
| Bishop Mant's years in Killaloe, 1820-1823 | Kierse, Sean | Article in Journal | | 1982 |
| Bishop Michael Browne of Galway (1937-1976 and the regulation of public morality | Donnelly, James S., Jr | Article in Journal | | 2013 |
| Bishop Michael Browne of Galway and anti-communism, 1937-1976 | Madden, Gerard | Article in Journal | | 2014 |
| Bishop Montgomery's survey of the bishoprics of Derry, Raphoe and Clogher | | Article in Journal | | 1943 |
| Bishop of the land war : Dr Patrick Duggan, bishop of Clonfert, 1813-1896 | Anonymous | Monograph or Collective Volume | Veritas | 1987 |
| Bishop Patrick McGettigan of Raphoe, 1820-1861 | Canning, B. J. (Bernard J.) | Article in Journal | | 2011 |
| Bishop Pococke's improvements to St Canice's Cathedral, Kilkenny | Finnegan, Rachel | Article in Journal | | 2008 |
| Bishop Ricards and Dean Croghan : a contrasting tale of two Wexford missionaries in South Africa | Comerford, Patrick | Article in Journal | | 2001 |
| Bishop Robert Walsh, the friars, and Edmund Ignatius Rice, 1817 | Fennessy, Ignatius | Article in Journal | | 1996 |
| Bishop Samuel of Dublin | Gwynn, Aubrey | Article in Journal | | 1942 |
| Bishop Thomas Lewis O'Beirne and his church-building programme in the diocese of Meath, 1798-1823 | Gallagher, Mary C. | Thesis | | 2009 |
| Bishop Wheeler's Visitation of Ossory, 1622 | Ó Fearghail, Fearghus | Article in Journal | | 2015 |
| Bishop William Bedell and the ‘humble petition’ of the Protestant clergy and laity in Cavan, 1633 | Scott, Brendan | Article in Journal | | 2019 |
| Bishops and Benedictines : the case of Father Richard O'Halloran | Kollar, René | Article in Journal | | 1987 |
| Bishops as men of business and parliamentary managers in the Irish House of Lords, 1613-89 | Dennehy, Coleman A. | Article in Book | Four Courts Press | 2025 |
| Bishops in contention : secular and ecclesiastical politics in later sixteenth-century Clogher | Lennon, Colm | Article in Journal | | 2006 |
| Bishops in the early Irish church : a reassessment | Etchingham, Colmán | Article in Journal | | 1994 |
| Bishops of Ferns | De Vál, Seamus S. | Article in Book | | 1999 |
| Bishops of Ireland 1870-1987 | Canning, B. J. (Bernard J.) | Monograph or Collective Volume | Donegal Democrat | 1987 |
| Bishops, church and people : how Christian was 'early Christian Ireland'? | Etchingham, Colmán | Article in Book | | 2010 |
| Bishopstown House : an 18th century ecclesiastical estate at Bishopstown in county Cork | McCarthy, J. P. (James P.) | Monograph or Collective Volume | The author | 1976 |
| Black cat in the window | Ó Murchú, Liam P. | Monograph or Collective Volume | Collins Press | 1999 |
| Blessed Nicholas Charnetskyi | McConvery, Brendan | Article in Book | | 2012 |
| Blessed Oliver Plunket and the Popish Plot in Ireland | Walker, Breifne | Article in Journal | | 1968 |
| Blessed Oliver Plunkett in Down and Connor | Smyth, J. | Article in Journal | | 1937 |
| Blessed Oliver Plunkett's report on the diocese of Armagh, 1670 | | Article in Journal | | 1959 |
| Blessed Thaddeus MacCarthy and diocese of Ross | Kiely, M. A. | Article in Journal | | 1936 |
| Blickling Homily III on the temptations in the desert | Wright, C. D. | Article in Journal | | 1988 |
| Blúire Cillsheanchais faoi Fhairche Chill Dara | de hÓir, Éamonn | Article in Journal | | 1967 |
| Bofeenaun Friary: history and architecture of a late medieval religious house | McDermott, Yvonne | Article in Journal | | 2018 |
| Boniface for the English | Stoclet, Alain J. | Article in Journal | | 2022 |
| Bonifatius als Mönch und Missionar | Hilpisch, Stephanus | Article in Book | | 1954 |
| Bonifaz und Virgil : Konflikt zweier Kulturen | Ó Néill, Pádraig | Article in Book | | 1985 |
| Books in the Franciscan Friary, Cork, in the days of the French Revolution and Jansenism | Fennessy, Ignatius | Article in Journal | | 2005 |
| Boston Catholics : a history of the church and its people | O'Connor, Thomas H., 1922-2012 | Monograph or Collective Volume | Northeastern University Press | 1998 |
| Bow Lane and the medieval vicars choral of St Mary's Cathedral, Limerick | Hodkinson, Brian | Article in Journal | | 2010 |
| Boxed rituals : Eamon de Valera, television and Talbot's Box | Jaros, Michael | Article in Book | | 2014 |
| Boyle Abbey and the school of the west | Kalkreuter, Britta | Monograph or Collective Volume | Wordwell | 2001 |
| Boyle Abbey, County Roscommon : conservation, architecture and archaeological excavations 1982-2018 | NA | Monograph or Collective Volume | The Stationery Office | 2022 |
| Breaching Derry's walls : the quest for a lasting peace in Northern Ireland | Van Til, Jon | Monograph or Collective Volume | University Press of America | 2008 |
| Brenan, Carew, and their ecclesiastical histories | Ó Súilleabháin, Pádraig | Article in Journal | | 1964 |
| Brendaniana, etc. | Stifter, David | Article in Journal | | 2006 |
| Brian Farrell - political scientist, teacher, broadcaster and colleague | Manning, Maurice | Article in Book | | 2004 |
| Brides of Christ : Women and monasticism in medieval and early modern Ireland | | Monograph or Collective Volume | Four Courts Press | 2023 |
| Brides of Christ, royal marriage and the conversion of English in Bede's 'Historia Ecclesiastica' | MacCarron, Mairin | Thesis | | 2008 |
| Bridgetown Priory : the Augustinian canons regular in medieval Ireland | O'Keeffe, Tadhg | Monograph or Collective Volume | Gandon | 1998 |
| Brief memoirs of all the Bishops of Derry since the Reformation : with a sketch of the early history of the See | Maturin, Edmund | Monograph or Collective Volume | James Hempton | 1867 |
| Brigit and Patrick in 'Vita Prima Sanctae Brigitae': veneration and jurisdiction | Dawson, Elizabeth | Article in Journal | | 2017 |
| British and Irish Religious Orders in Europe, 1560-1800 : conventuals, mendicants and monastics in motion | | Monograph or Collective Volume | Durham University. IMEMS Press | 2022 |
| British broadcasting in Northern Ireland : a contradiction in terms? | Butler, David Henry Edgeworth | Article in Book | | 1994 |
| British colonial expansion westwards : Ireland and America | Hadfield, Andrew | Article in Book | | 2005 |
| British sports and pastimes in San Francisco, 1848-1900 | Park, Roberta J. | Article in Journal | | 1984 |
| British statesmen and the Irish church question | Shearman, H. F. | Article in Journal | | 1946 |
| Broadcaster, church and state in Ireland, 1958-1968 | Grimes, Aisling | Thesis | | |
| Broadcasting - the early decades | Cathcart, Rex | Article in Book | | 1984 |
| Broadcasting and public life : RTE news and current affairs, 1926-1999 | Horgan, John, b. 1940 | Monograph or Collective Volume | Four Courts | 2004 |
| Broadcasting and public policy : personal reflections | Collins, Bob | Article in Book | | 2015 |
| Broadcasting and violence : the case for media restriction | O'Brien, Conor Cruise, 1917-2008 | Article in Book | | 2005 |
| Broadcasting Bailiúchán Bhairbre: researching and representing recordings via radio | Ní Chonghaile, Deirdre | Article in Book | | 2012 |
| Broadcasting in Irish : minority language, radio, television and identity | Watson, Iarflaith | Monograph or Collective Volume | Four Courts | 2003 |
| Broadcasting on the island of Ireland, 1916-2016 | Savage, Robert J. | Article in Book | | 2018 |
| Broadcasting to a community in conflict - the experience in Northern Ireland | Francis, Richard | Article in Book | | 1996 |
| Broadcasting Ulster-Scots: Ulster-Scots media provision in the modern revival period | Spence, Laura | Article in Journal | | 2013 |
| Brum - A Life in Television | Henderson, Brum | Monograph or Collective Volume | Appletree Press | 2003 |
| Buaidh na naomhchroiche | | Monograph or Collective Volume | | 1972 |
| Building 'God's own country' : The Reverend Rutherford Waddell, the global Irish and New Zealand history | Stenhouse, John | Article in Book | | 2015 |
| Building a church in nineteenth-century Ireland | Murphy, Ignatius | Article in Journal | | 1978 |
| Building a frontier? The architecture of the military orders in medieval Ireland | Grogan, PatO'Keeffe, Tadhg | Article in Book | | 2015 |
| Building opposition: the Mant controversy and the Church of Ireland in early Victorian Belfast | Farrell, Sean | Article in Journal | | 2014 |
| Building St. Patrick's Cathedral | McNierney, Patrick J. | Article in Journal | | 2004 |
| Building Victorian Dublin : Meade & Son and the expansion of the city | Galavan, Susan | Article in Book | | 2013 |
| Buildings and faith : church building from medieval to modern | Larmour, PaulMcBride, Stephen | Article in Book | | 2002 |
| Bunduvowen and Garrison Island : the Northern bastion of the Turlough Landscape, Co. Mayo | Lawless, Christy | Article in Journal | | 1999 |
| Burials at St. Patrick's Cathedral : new evidence for the early medieval ecclesiastical site at Trim | Kieran, Eoghan | Article in Book | | 2009 |
| Burials at the well: excavations at the Black Friary, Trim | Kelly, MarkSeaver, MatthewTravers, Ciara | Article in Book | | 2009 |
| Business organization and the business class | Green, E. R. R. | Article in Book | | 1957 |
| Butler tombs and furnishings in St. Canices Cathedral, Kilkenny | Phelan, Margaret M. | Article in Journal | | 1982 |
| Butlers' Emporium | Byrne, Seán | Article in Journal | | 1994 |
| Buttevant Friary and its crypt | O'Keeffe, Tadhg | Article in Journal | | 2012 |
| Byways. A look at lesser used sources. (Roman Catholic marriage records) | Evans, Mihail D. | Article in Journal | | 1996 |
| Byways. A look at lesser used sources. [Church of Ireland registers] | Evans, Mihail D. | Article in Journal | | 1995 |
| Cáin Adomnáin, 697 : the Irish 'Geneva convention' | O'Dwyer, Máire | Article in Journal | | 2015 |
| Calary church and parish : diocese of Glendalough : 175th anniversary, 1834-2009 | Jennings, Robert | Monograph or Collective Volume | Calary Parish | 2009 |
| Calendar of ... Scritture riferite nei congressi, Irlanda, in Propaganda archives | | Article in Journal | | 1978 |
| Calendar of Archbishop Alen's register, c.1172-1534; prepared and edited from the original in the registry of the united dioceses of Dublin and Glendalough and Kildare | | Monograph or Collective Volume | | 1950 |
| Calendar of Bray papers | Meagher, Claude | Article in Journal | | 1970 |
| Calendar of documents contained in the chartulary commonly called Dignitas Decani of St Patrick's cathedral | | Article in Journal | | 1905 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland : papal letters Vol. 17 : Alexander VI 1492-1503. Part 2, Vatican registers 1492-1503 with missing letters from other sources | | Monograph or Collective Volume | Irish Manuscripts Commission | 1998 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland : papal letters Vol.18 : Pius III and Julius II. Vatican Registers (1503-1513); Lateran Registers (1503-1508) | | Monograph or Collective Volume | Stationery Office for Irish Manuscripts Commission | 1989 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland : papal letters Vol.19 : 1503-1513. Lateran registers part 2 | | Monograph or Collective Volume | Irish Manuscripts Commission | 1998 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland : Papal letters. Vol. 17. Part 1 : Alexander VI, 1492-1503 : Lateran registers | | Monograph or Collective Volume | Irish Manuscripts Commission | 1994 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland : petitions to the pope. Vol. 1 : 1342-1419 | | Monograph or Collective Volume | | 1896 |
| Calendar of entries in the Papal Registers relating to Great Britain and Ireland, vols. I - XIII. Papal letters | | Monograph or Collective Volume | | 1893 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland, papal letters, vol XX, 1513-1521 | NA | Monograph or Collective Volume | Irish Manuscripts Commission | 2005 |
| Calendar of entries in the papal registers relating to Great Britain and Ireland. Papal letters, vol. 16 ... Lateran registers, part 1 : 1492-1498 | | Monograph or Collective Volume | Stationery Office for the Irish Manuscripts Commission | 1986 |
| Calendar of entries in the Papal registers relating to Great Britain and Ireland. Vol. XVIII : Pius III and Julius II : Vatican registers (1503-1513); Lateran registers (1503-1508) | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1989 |
| Calendar of Irish material in ... Fondo di Vienna in Propaganda archives | | Article in Journal | | 1990 |
| Calendar of leases and deeds of St. Patrick's cathedral, Dublin, 1660-89 | Leslie, J. B. | Article in Journal | | 1934 |
| Calendar of Papal letters relating to Great Britain and Ireland, vol. XXI, 1513-1521, Leo X, Lateran registers, part 2 | NA | Monograph or Collective Volume | Irish Manuscripts Commission | 2024 |
| Calendar of the letters of the Butler archbishops of Cashel (1750-92) | Donovan, Imelda | Thesis | | 1970 |
| Calendar of the papers of Dr Bray, archbishop of Cashel and Emly (1792-1820) | Meagher, Claude | Article in Journal | | 1968 |
| Calendar of volume 14 of the Fondo di Vienna in Propaganda Archives : part 3, ff. 284-395 | | Article in Journal | | 1990 |
| Calendar of volume 15 of the Fondo di Vienna in Propaganda archives | Millett, Benignus | Article in Journal | | 1991 |
| Calendar of volume 16 of the Fondo di Vienna in Propaganda archives : Part 1, ff 1-102 | Millett, Benignus | Article in Journal | | 1996 |
| Calendar of volume 16 of the Fondo di Vienna in Propaganda archives, part 2, ff 103-216 | Millett, Benignus | Article in Journal | | 1998 |
| Calendar to Christ church deeds, 1174-1684 | | Article in Book | | 1892 |
| Callan and Ormond : architecture of the 'Middle Nation'? | O'Donovan, Danielle | Article in Book | | 2012 |
| Calling the tune : the media, the state and the public's right to know | Shaw, Helen | Article in Book | | 2005 |
| Calumnies concerning the Douay-Rheims Bible | Pope, Hugh | Article in Journal | | 1944 |
| Calvinistic Methodism and the reformed tradition in eighteenth-century Wales | Jones, David Ceri | Article in Book | | 2014 |
| Canada : the Irish famine and the Atlantic migration to Canada | O'Reilly, John | Article in Journal | | 1947 |
| Canon and civil marriage laws in Ireland | Lee, Gerard A. | Article in Journal | | 1946 |
| Canon E. Reussen's list of Irish Fransiscan theses in Louvain 1620-1738 | Fennessy, Ignatius | Article in Journal | | 2006 |
| Canon John O'Hanlon (1821-1905) : his early days in St Louis | Concannon, Helena | Article in Journal | | 1947 |
| Canon law and secular law in early Ireland : the significance of Bretha Nemed | Breatnach, Liam | Article in Journal | | 1984 |
| Canon law in Protestant lands | | Monograph or Collective Volume | | 1992 |
| Canon Ulick J. Bourke, 1829-87 | Concannon, Helena | Article in Journal | | 1950 |
| Canonical faculties on the Irish mission in the reign of Queen Elizabeth, 1558-1603 | Jones, F. M. | Article in Journal | | 1953 |
| Canterbury and Armagh, 1443-1456 | Foss, D. B. | Article in Journal | | 1988 |
| Canterbury's perspective on church reform and Ireland 1070-1115 | Brett, Martin | Article in Book | | 2006 |
| Cardinal Basil Hume and Abbot Byrne | Smith, Sean | Article in Journal | | 2004 |
| Cardinal Bourne and Ireland | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1940 |
| Cardinal Cullen : biographical materials | Curran, M. J. | Article in Journal | | 1955 |
| Cardinal Cullen and Archbishop MacHale | Corish, Patrick J. | Article in Journal | | 1959 |
| Cardinal Cullen and Irish nationality | Steele, Edward David | Article in Journal | | 1975 |
| Cardinal Cullen and the system of national education in Ireland | Doyle, Joseph | Article in Book | | 2011 |
| Cardinal Cullen's other capital : Belfast and the 'devotional revolution' | Connolly, Sean J. | Article in Book | | 2011 |
| Cardinal Manning : a biography | Gray, Robert | Monograph or Collective Volume | [s.n.] | 1985 |
| Cardinal Patrick Francis Moran of Leighlinbridge, 1830-1911 | Ó Fearghail, Fearghus | Article in Book | | 2008 |
| Cardinal Patrick O'Donnell and Scotland | Canning, B. J. (Bernard J.) | Article in Journal | | 2001 |
| Cardinal Paul Cullen | Larkin, Emmet | Article in Book | | 1998 |
| Cardinal Paul Cullen and his world | | Monograph or Collective Volume | Four Courts | 2011 |
| Cardinal Pole's absolution of George Browne, Henry VIII's archbishop of Dublin | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1949 |
| Cardinal Samuel Stritch and his ancestors | MacMahon, Bryan | Article in Book | | 2012 |
| Cardinal Wiseman and Ireland | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1950 |
| Carleton's ecclesiastical context : the Ulster Catholic experience | Rafferty, Oliver P. | Article in Journal | | 2000 |
| Carlingford churches in 1485 | Ross, Noel | Article in Journal | | 2011 |
| Carlisle Memorial Methodist Church (History in the News) | NA | Article in Journal | | 2025 |
| Carlow's old inns, churches, gaol, and castle | Douglas, M. C. | Article in Journal | | 1951 |
| Carnage in Wallstown. The Tithe War in North Cork in 1832 | Cronin, Neil | Article in Journal | | 2009 |
| Carved medieval font at Thomastown | MacGarry, Damian C. | Article in Journal | | 1980 |
| Cashel & Emly heritage | Skehan, Walter G. | Monograph or Collective Volume | Abbey Books | 1993 |
| Cashel and Germany : the documentary evidence | Ó Riain-Raedel, Dagmar | Article in Book | | 2006 |
| Cashel diocesan archives | Tierney, Mark | Article in Book | | 1989 |
| Cashel diocesan archives : a short survey of the papers preserved in Archbishop's House, Thurles | Tierney, Mark | Article in Journal | | 1967 |
| Cashel of the kings : a handy illustrated guide to the Rock of Cashel, its ruins and surroundings, | McCraith, L. M | Monograph or Collective Volume | The Chronicle (printer) | 1923 |
| Castilla & the Bradstreet family | Robinson, Anne | Article in Journal | | 2013 |
| Castilla and the Bradstreet family | Robinson, Anne | Article in Journal | | 2013 |
| Casting light from the fires of corn-drying kilns on the later Iron Age | Monk, Michael A.Power, Orla | Article in Journal | | 2014 |
| Casting new light on old excavations | Buckley, LaureenSikora, Maeve | Article in Journal | | 2003 |
| Castledermot : its history and antiquities | Comerford, Michael, Coadjutor Bishop of Kildare and Leighlin | Article in Journal | | 1895 |
| Castledillon in the barony of South Salt | "Omurethi" | Article in Journal | | 1911 |
| Castledockrell church 1842-1992 | Anonymous | Monograph or Collective Volume | The church | 1992 |
| Castleknock College, first ecclesiastical seminary for the archdiocese of Dublin | Doyle, J. | Article in Journal | | 1962 |
| Castles of God : fortified religious buildings of the world | Harrison, Peter | Monograph or Collective Volume | Boydell Press | 2004 |
| Castles, churches and country houses : the lost architecture of county Fermanagh in an age of improvement, c.1700-c.1750 | Roulston, William J. | Article in Book | | 2004 |
| Cataldus Racha, a study in the early history of diocesan episcopacy in Ireland | Hennig, John | Article in Journal | | 1946 |
| Catalogue of Irish material in fourteen volumes of the Scritture originali riferite nelle congregazioni generali in Propaganda archives | | Article in Journal | | 1969 |
| Catalogue of manuscripts in possession of the Representative Church Body, ... Dublin | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | | 1938 |
| Catalogue of manuscripts.... collected by the Ecclesiastical Records Committee | Leslie, J. B. (James Blennerhassett)Representative Church Body, Dublin | Monograph or Collective Volume | [s.n.] | 1938 |
| Catalogue of seals in the National Museum of Wales, II : ecclesiastical, monastic and collegiate seals with a supplement concerning Wales | Williams, David H. (David Henry), 1933- | Monograph or Collective Volume | National Museums & Galleries of Wales | 1998 |
| Catalogue of the papers of Dr Denis Conway (1722-96) in Limerick Diocesan Archives [with index] | Bracken, David | Article in Journal | | 2016 |
| Catalogue of the papers of Dr John Young, bishop of Limerick [1746-1813) held in the Limerick Diocesan Archives [with index] | Bracken, David | Article in Journal | | 2015 |
| Catalogus sanctorum Hiberniae | Anonymous | Article in Book | | 1869 |
| Cathedral and mission | Cooney, Brendan | Article in Book | | 1998 |
| Cathedral and monastic office in Ireland | Curran, Michael | Article in Journal | | 1978 |
| Cathedral of St. Anne, Belfast, 1904-1930 | Thompson, Herbert Marshall | Monograph or Collective Volume | Belfast Cathedral Guild | 1930 |
| Cathedral quarter : a visitor's guide to its historic buildings | Harkin, Rita | Monograph or Collective Volume | Ulster Architectural Heritage Society | 2004 |
| Cathedral, close and community, c.1220 to c.1500 | Clarke, Howard B. | Article in Book | | 2009 |
| Cathedrals in Britain and Ireland : from early times to the reign of Henry VIII | Anderson, W.Hicks, C. | Monograph or Collective Volume | MacDonald and Jones | 1978 |
| Catholic church music in Ireland, 1878-1903 : Lyra Ecclesiastica and the Cecilian movement | Daly, Kieran Anthony | Monograph or Collective Volume | Four Courts | 1995 |
| Catholic church records | Ryan, James G. | Article in Book | | 1992 |
| Catholic clerical responses to the Restoration : the case of Nicholas French | McHugh, Jason | Article in Book | | 2008 |
| Catholic Devotion in Victorian Scotland | Aspinwall, Bernard | Article in Book | | 2008 |
| Catholic Dublin : the public expression in the age of Paul Cullen | Daly, Mary E. | Article in Book | | 2011 |
| Catholic emancipation : documents | Doherty, Gillian M.,O'Riordan, Tomás | Article in Book | | 2011 |
| Catholic Ireland, 1864 | Corish, Patrick J. | Article in Journal | | 1964 |
| Catholic periodicals of the past, 1 : the Catholic Penny Magazine, 1834-1835 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 2 : the Catholic Book Society and the Irish Catholic Magazine | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 3 : Philip Barron's Ancient Ireland, 1835 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 4 : the Catholic Luminary, 1840-1841 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 5 : Duffy's Irish Catholic Magazine, 1847-1848 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 6 : Duffy's Irish Catholic Magazine, 1847-48, part 2 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic periodicals of the past, 7 : the Catholic University Gazette, 1854-1856 | Wall, Thomas | Article in Journal | | 1964 |
| Catholic religious practices and payments in seventeenth-century Ireland | Gillespie, Raymond | Article in Journal | | 1993 |
| Catholic revival in Kilmore diocese, 1603-41 | Mac Cuarta, Brian | Article in Book | | 2009 |
| Catholic schools and 'the system of national education' | Brenan, M. | Article in Journal | | 1947 |
| Catholic sermon books printed in Ireland, 1700-1850 | Ó Súilleabháin, Pádraig | Article in Journal | | 1963 |
| Catholic University Church | O'Carroll, Ciarán | Article in Book | | 2012 |
| Catholicism in the province of Armagh, 1603-1641 | Mac Cuarta, Brian | Thesis | | 2004 |
| Catholics and protestants in an eighteenth-century Limerick parish : Ardcanny, 1659-1798 | Fleming, David A. | Article in Book | Four Courts Press | 2024 |
| Catholics writing the nation in early modern Britain and Ireland | Highley, Christopher | Monograph or Collective Volume | Oxford University Press | 2008 |
| Céili Dé in Ireland : monastic writing and identity in the early middle ages | Follett, Westley | Monograph or Collective Volume | Boydell | 2006 |
| Celbridge : some notes on its past history | Graham, Charles I. | Article in Journal | | 1899 |
| Celebrating 200 years of St Colman's Church, Cloyne | Hartnett, MargaretLyons, PatriciaTerry, Kevin | Monograph or Collective Volume | Cloyne Parish | 2015 |
| Celebrating 400 years, 1596-1996 : All Saint's Parish Church, Antrim | Gates, Peter,Kidd, Mervyn,Wallace, John | Monograph or Collective Volume | Antrim Printers | 1996 |
| Célí Dé : spiritual reform in Ireland, 750-900 | O'Dwyer, Peter | Monograph or Collective Volume | | 1981 |
| Cellular meanings, monastic beginnings | Thomas, Charles | Article in Journal | | 1995 |
| Celtic Ireland | Mac Néill, Eoin | Monograph or Collective Volume | | 1921 |
| Celtic monasticism | Kenny, Evelyn | Article in Journal | | 1990 |
| Celtic penance : its sources, affiliations and influence | Oakley, Thomas Pollock | Article in Journal | | 1938 |
| Celtic revivalist | Harbison, Peter | Article in Journal | | 2014 |
| Celtic-Irish monasticism and early insular illuminated manuscripts | O'Dwyer, B. W. | Article in Journal | | 1989 |
| Cemetery settlements and local churches in pre-Viking Ireland in light of comparisons with England and Wales | Ó Carragáin, Tomás | Article in Journal | | 2009 |
| Cemetery settlements and local churches in pre-Viking Ireland in light of comparisons with England and Wales | Ó Carragáin, Tomás | Article in Book | | 2009 |
| Censoring Irish nationalism : the British, Irish, and American suppression of republican images in film and television, 1909-1995 | Burns-Bisogno, Louisa | Monograph or Collective Volume | McFarland | 1997 |
| Censorship and 'The Troubles' | Moloney, Ed, 1948- | Article in Book | | 2005 |
| Censorship in Ireland, 1939-1945 : neutrality, politics and society | Ó Drisceoil, Donal | Monograph or Collective Volume | Cork University Press | 1996 |
| Censorship, not 'self-censorship' | Kenny, Colum | Article in Book | | 2005 |
| Centenary (St. Patrick's Church, Cullyhanna) | McMahon, Kevin | Article in Journal | | 1992 |
| Centenary of Heynstown Parish Church 1827-1927 | Dudley-Janns, F. P. | Monograph or Collective Volume | W. Tempest | 1927 |
| Centenary of St. Aidan, Irish apostle to the Anglo-Saxons | Bolton, C. A. | Article in Journal | | 1951 |
| Centenary of St. Donard's of Murlough Parish Church of Dundrum - a short history | McCammon, Kenneth A. | Monograph or Collective Volume | Down Recorder [Printer] | 1987 |
| Centenary of the silent : St Mary's school for deaf-mutes, Cabra, Dublin | Sacerdos | Article in Journal | | 1946 |
| Centenary souvenir, 1840-1940 | St. John's Church Parish | Monograph or Collective Volume | St. John's Church parish | 1940 |
| Centralism and uniformity versus localism and diversity : the Virgin and native saints in the monastic reform | Clayton, Mary, 1954- | Article in Journal | | 1994 |
| Centres and Landscapes of Wool Export Trade in the Crown of Castile from the Fifteenth to the Early Nineteenth Century | Hernando, Máximo Diago | Article in Book | | 2024 |
| Chalk Sunday - contrasting views | Anonymous | Article in Journal | | 2010 |
| Challenging Irish society : 'The Late Late Show', 1962-1997 | O'Neill, Finola Doyle | Thesis | | 1998 |
| Challenging Irish society : the Late Late Show 1962-1997 | O'Neill, Finola Doyle | Article in Journal | | 2000 |
| Challoner in Ireland | Wall, Thomas | Article in Journal | | 1946 |
| Challoner's contemporaries in Ireland | Wall, Thomas | Article in Journal | | 1946 |
| Champion of the Gaeilgeoirí: John Charles McQuaid and the Irish-language Mass | Bruce, James P. | Article in Journal | | 2016 |
| Changes in rural life and settlement | Evans, E. Estyn (Emyr Estyn), 1905-1989 | Article in Book | | 1957 |
| Changing the story : how the BBC Northern Ireland programme "Hearts and minds" challenged the traditional coverage of politics in Northern Ireland after the 1998 Good Friday Agreement | Paul, Julia | Thesis | | |
| Chapel or church? The case of St Mary's, Pope's Quay, Cork | McParland, Edward | Article in Book | | 2012 |
| Chapel Royal and symbol of the Church Militant: the iconography of Christ Church and St Patrick's Cathedrals, Dublin, c.1660-1760 | Usher, Robin | Article in Journal | | 2007 |
| Chapel Royal, Dublin Castle | Derham, William
| Article in Journal | | 2017 |
| Chapels of Leighlinbridge, 1729 and 1788 | Nevin, Martin | Article in Journal | | 2008 |
| Chapels of Leighlinbridge, 1729 and 1788 | Nevin, Martin | Article in Journal | | 2008 |
| Chapter and verse at Jerpoint Abbey | Harbison, Peter | Article in Journal | | 2017 |
| Charles Haughey : a legacy of lasting achievement | Mansergh, Martin | Article in Book | | 1996 |
| Charles McNally : O'Connellite bishop, reforming pastor | Kerr, Donal A. | Article in Journal | | 1982 |
| Charles McNally, Maynooth professor and bishop of Clogher | Kerr, Donal A. | Article in Journal | | 1981 |
| Charleville's churches | O'Riordan, Ted | Article in Journal | | 1986 |
| Chattel, servant or citizen : women's status in church, state and society : Historical Studies XIX | | Monograph or Collective Volume | Institute of Irish Studies, Queen's University of Belfast | 1995 |
| Childhood pastimes [1940s & 1950s] | Gilmore, M. | Article in Journal | | 2004 |
| Christ Church cathedral (C. of I.) | Stalley, Roger | Article in Book | | 2005 |
| Christ Church cathedral and its environs : medieval and beyond | O'Neill, Michael | Article in Book | | 2011 |
| Christ Church Cathedral, Dublin : a history | | Monograph or Collective Volume | Four Courts | 2000 |
| Christ Church cathedral, Dublin : a short history | Lewis-Crosby, E. H. | Monograph or Collective Volume | | 1949 |
| Christ Church Cathedral, Dublin : a survey of the nave and south transept roofs | Geaney, Máire | Article in Book | | 2006 |
| Christ Church Cathedral, Dublin, 1660-1760 | Murphy, David James | Thesis | | 1995 |
| Christ Church in the later medieval Irish world, 1300-1500 | Lydon, James F. | Article in Book | | 2000 |
| Christ Church Londonderry 1830-2005: milestones - ministers - memories | Bartlett, IanHamilton, Roy | Monograph or Collective Volume | Christ Church, Londonderry [Printed by Impact Printing, Ballycastle] | 2005 |
| Christ Church Strabane, 1879-1979 : centenary brochure | Lovell, Ernest W. | Monograph or Collective Volume | Bell, Logan and Carswell [Printer] | 1979 |
| Christ Church, Ballyholly and the Bridgetown connection | Magner, Mehaul | Article in Journal | | 2004 |
| Christ Church, Derriaghy : gravestone and church inscriptions. | Barr, W. N. C., Rev. | Monograph or Collective Volume | W. N. C. Barr | 2002 |
| Christ Church, Derriaghy, gravestone inscriptions | | Monograph or Collective Volume | W. N. C. Barr | 1980 |
| Christ Church, Dublin : the late Romanesque building campaign | Stalley, Roger | Monograph or Collective Volume | Gifford & Craven | 1973 |
| Christ Church, Fermoy : a compilation | | Monograph or Collective Volume | Eigse Books | 1984 |
| Christ Church, Kilmeen, Co. Cork , 1811-2011 | | Monograph or Collective Volume | [Kilmeen parish] | 2011 |
| Christ Church, Londonderry, 1830-1980: milestones - ministers - memories | Bartlett, Ian,Bryans, Cecil,Hamilton, Roy | Monograph or Collective Volume | Limavady Printing Company [Printer] | 1980 |
| Christchurch centre, Cork Archives Institute, under auspices of Cork Corporation, Cork County Council, University College, Cork | | Monograph or Collective Volume | Cork Archives institute | 1982 |
| Christian citizens : the Catholic church and radical politics 1790-1800 | Keogh, Dáire | Article in Book | | 1997 |
| Christian cults and cult-centres in Hiberno-Norse Dublin and its hinterland | Clarke, Howard B. | Article in Book | | 2004 |
| Christianising pagan worlds in conversion-era Ireland : archaeological evidence for the origins of Irish ecclesiastical sites | Harney, Lorcan | Article in Journal | | 2017 |
| Christianities in the early modern Celtic world | | Monograph or Collective Volume | Palgrave Macmillan | 2014 |
| Christianity and the Latin tradition in early medieval Ireland | Kelly, J. F. T. | Article in Journal | | 1985 |
| Christianity in Ireland during the fifth and sixth centuries : a survey and evaluation of the sources | Bieler, Ludwig | Article in Journal | | 1964 |
| Christianity or solar monotheism : the early religious beliefs of St. Patrick | Powell, T. E. | Article in Journal | | 1992 |
| Chronicle : installation of the most Reverend Cahal Brendan Daly as archbishop of Armagh and primate of all Ireland | Anonymous | Article in Journal | | 1991 |
| Chronicles and annals of mediaeval Ireland and Wales : the Clonmacnoise-group texts | Dumville, David N.Grabowski, Kathryn | Monograph or Collective Volume | Boydell Press | 1984 |
| Church and community in medieval Ireland : the diocese of Kilfenora | Ni Ghabhlain, Sinead | Article in Journal | | 1995 |
| Church and dynasty early Christian Brega : Lusk, Inis Pátraic and the case of Máel-Finnia, king and saint | Mac Shamhráin, Ailbhe | Article in Book | | 2004 |
| Church and politics, c.750-c.1100 | Byrne, J. F. | Article in Book | | 2005 |
| Church and polity in pre-Norman Ireland : the case of Glendalough | Mac Shamhráin, Ailbhe Séamus | Monograph or Collective Volume | An Sagart | 1996 |
| Church and polity in pre-Norman Ireland : the case of Glendalough | Mac Shamhráin, Ailbhe | Monograph or Collective Volume | An Sagart | 1996 |
| Church and polity in pre-Norman Ireland: the case of Glendalough | McGovern, Alan James | Thesis | | 1995 |
| Church and settlement in Ireland | | Monograph or Collective Volume | Four Courts Press | 2018 |
| Church and state : the wider issues | Comiskey, Brendan, Bishop of Ferns | Article in Journal | | 1985 |
| Church and state in 21st century Britain : the future of church establishment | | Monograph or Collective Volume | Palgrave Macmillan | 2009 |
| Church and state in Angevin Ireland | Warren, Wilfred Lewis, 1929- | Article in Journal | | 1999 |
| Church and state in Ireland (1922-2013) : contrasting perceptions of humanity | Maignant, Catherine | Article in Journal | | 2014 |
| Church and state in Ireland : perspectives of Vatican II | Hannon, Patrick | Article in Journal | | 2017 |
| Church and state in medieval Ireland : the case of Aderrig, county Dublin | Smith, Charles | Article in Journal | | 2002 |
| Church and state in the Ireland of Míchél Ó Cléirigh | Edwards, R. W. D. (Robert Walter Dudley) | Article in Book | | 1944 |
| Church architecture in Ulster | Davies, Oliver | Article in Journal | | 1944 |
| Church archives in the United States and Canada : a bibliography | Binsfield, Edward L. | Article in Journal | | 1958 |
| Church building | Kennedy, T. P. | Article in Book | | 1968 |
| Church building in 14th century Ireland and the 'Gaelic revival' | McNeill, T. E. | Article in Journal | | 1985 |
| Church buildings and pastoral care in early medieval Ireland | Ó Carragáin, Tomás | Article in Book | | 2006 |
| Church buildings in Ireland, 1550-1850 | Oram, Richard D. | Article in Book | | 2007 |
| Church dedications of the Armagh Diocese | Mayes, Gilbert | Monograph or Collective Volume | Dundalgan Press (W. Tempest) Ltd. | 1951 |
| Church Disestablishment (1869), Synodical governance, and the legacy of women's higher education reform: the agents of reform and their Meath connection | McCormack, Christopher | Article in Journal | | 2023 |
| Church government in the south of Ireland, A.D. 1471 to 1484 | Collins, J. T. | Article in Journal | | 1957 |
| Church Island : a description | Ryan, Michael | Article in Book | | 2004 |
| Church lands in medieval Monaghan | Ó Dufaigh, Seosamh | Article in Book | | 2017 |
| Church music reform | Delany, James | Article in Journal | | 1946 |
| Church music reform | Delaney, James | Article in Journal | | 1946 |
| Church of Corpus Christi golden jubilee, 1941-1991 | Anonymous | Monograph or Collective Volume | [s.n.] | 1991 |
| Church of Ireland church architecture in east Clare : the 'First Fruits Gothic' legacy | Daly, Gordon | Article in Journal | | 1997 |
| Church of Ireland parish churches in the Donegal group | Trimble, Harry, Rev. | Article in Journal | | 2012 |
| Church of Ireland records | Refaussé, Raymond | Monograph or Collective Volume | Irish Academic Press | 2000 |
| Church of Ireland Records | Refaussé, Raymond | Monograph or Collective Volume | Four Courts | 2006 |
| Church of Ireland vestry records | Refaussé, Raymond | Article in Journal | | 1995 |
| Church of Saints Peter and Paul, Athlone : an illustrated history and guide | Murray, Patrick, 1935- | Monograph or Collective Volume | Saints Peter and Paul's Parish Forum/Pastoral Council | 2007 |
| Church of St Peter and Paul Balbriggan, 1842-1992 | Walsh, Jim | Monograph or Collective Volume | Balbriggan Historical and Cultural Society | 1992 |
| Church of St. Barrahane. Castlehaven Parish, County Cork | | Monograph or Collective Volume | [Castlehaven parish] | 1965 |
| Church of St. John the Evangelist, Ashe Street, Tralee | O'Sullivan, Donal J. | Monograph or Collective Volume | | 2001 |
| Church of St. Polycarp : parish of Finaghy : diocese of Connor | Church of St. Polycarp | Monograph or Collective Volume | [Church of St. Polycarp] | 1932 |
| Church of the Assumption, Callan | Dalton, William,Purcell, William | Article in Book | | 2010 |
| Church of the Immaculate Conception, Knightstown, Valentia Island, Co. Kerry, 1915-2015 : 200 years anniversary | | Monograph or Collective Volume | Centenary Committee | 2016 |
| Church opinion in Northern Ireland, 1983 | Scully, Maggie | Article in Journal | | 2015 |
| Church organisation in Ireland, A.D. 650 to 1000 | Etchingham, Colmán | Monograph or Collective Volume | Laigin Publications | 1999 |
| Church Organization and Pastoral Care | Pickles, Thomas F. | Article in Book | | 2009 |
| Church records | Refaussé, Raymond | Article in Book | | 1998 |
| Church records - Co. Cavan | Plunkett-Coyle, James | Article in Journal | | 2014 |
| Church records after disestablishment | Ó Dúill, Gréagóir | Article in Journal | | 1975 |
| Church reform and Irish monastic culture in the twelfth century | Harbison, Peter | Article in Journal | | 2001 |
| Church reform and Irish monastic culture in the twelfth century | Harbison, Peter | Article in Journal | | 2000 |
| Church reform in Connacht | Perros-Walton, Helen | Article in Book | | 2013 |
| Church sites and other settlements in Early Medieval Ireland: densities, distributions, interactions | Ó Carragáin, Tomás | Article in Book | | 2016 |
| Church valuables put in safe keeping before exile : receipt from Vallentine Browne : 1698 | Browne, Vallentine | Article in Book | | 1991 |
| Church Woodwork in the British Isles, 1100-1535 : An Annotated Bibliography | Faleer, Robert A., 1952- | Monograph or Collective Volume | Scarecrow Press | 2009 |
| Church, chapel and meeting house | Byrne, ArtFrazer, Marilyn | Monograph or Collective Volume | Guildhall | 1992 |
| Church, state and social science in Ireland : knowledge institutions and the rebalancing of power, 1937-73 | Feeney, MariaMurray, Peter | Monograph or Collective Volume | Manchester University Press | 2017 |
| Church, state and society | Keogh, Dermot | Article in Book | | 1988 |
| Church, state, industry, 1827-1929, in East Belfast : vivid records of social and political upheavals in the Nineteen-twenties | Redmond. John | Monograph or Collective Volume | John Aiken & Son [printers] | 1960 |
| Church-building in Moy | Dillon, Charles | Article in Journal | | 1988 |
| Church-goers in Limerick during war and revolution | Comerford, Patrick | Article in Book | | 2023 |
| Church-government and the spread of Christianity in Ireland | Dumville, David N. | Article in Book | | 1993 |
| Churches 'in antis': Skeumorphism and Solomonic Iconography in Early Irish Architecture | O'Keeffe, Tadhg | Article in Journal | | 2023 |
| Churches and communities in early medieval Ireland : towards a pastoral model | Sharpe, Richard | Article in Book | | 1992 |
| Churches and monunments | Madden, Gerard | Article in Book | | 1993 |
| Churches and Symbolic Power in the Irish Landscape | Maguire, Martin | Article in Journal | | 2004 |
| Churches and theology in a century of revolution and reaction | Pierce, Andrew | Article in Book | | 2006 |
| Churches in early medieval Ireland : architecture, ritual and memory | Ó'Carragáin, Tomás | Monograph or Collective Volume | Yale University Press | 2010 |
| Churches in the Irish Landscape Ad 400-1100 | Ó Carragáin, Tomás | Monograph or Collective Volume | Cork University | 2021 |
| Churches of Galway, Kilmacduagh and Kilfenora | May, Thomas M. | Monograph or Collective Volume | The author | 2000 |
| Churches of south-east county Dublin, seventh to twelfth century | O'Brien, Elizabeth | Article in Book | | 1988 |
| Churches of the Diocese of Connor | Scott, Ernest V. | Monograph or Collective Volume | [Diocese of Connor] | 1992 |
| Churches of the diocese of Kilmore | Kelly, Liam | Monograph or Collective Volume | Booklink | 2005 |
| Churches, people and pastors : the Church of Ireland in Victorian Dublin, 1833-1901 | Crawford, John W. R. | Thesis | | 2003 |
| Churchill and the naval chaplains | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1965 |
| Churching | Fitzsimons, Fiona | Article in Journal | | 2020 |
| Churchwarden's accounts, 1484-1600, St Werburgh's church, Dublin | Robinson, J. L. | Article in Journal | | 1914 |
| Cianfheachaint. Roinnt tuairmimí, paradacsaí, réamhchlaontaí, agus 'Obiter dicta' faoi TnG | Mac Coil, L. | Article in Journal | | 1994 |
| Cill i logainmneacha Co. Thiobraid Árann | Ó Cearbhaill, Pádraig | Monograph or Collective Volume | Oifig an tSoláthair | 2007 |
| Cill Mac Creithe na Trágha : Kilmacreehy, Liscannor, county Clare | Gilmore, Hilary | Article in Journal | | 2003 |
| Cillglas-Kilglas : the church by the stream : a history of the confiscation settlement and vesting of its lands | Carroll, P. J. | Monograph or Collective Volume | The author | 1996 |
| Cistercian art and architecture in the British Isles | | Monograph or Collective Volume | | 1986 |
| Cistercian monastic settlements in the Diocese of Ross | Byrne, Jim | Article in Journal | | 2013 |
| Cistercienses Irlandeses en Espana | Guerin Betts, Patrick | Article in Journal | | 1975 |
| Cities and their spaces. The hinterlands of Medieval Dublin | Clarke, Howard B. | Article in Book | | 2013 |
| Cities for Gods | Hurley, Richard | Article in Journal | | 2008 |
| City of churches | Gilleece, Emma | Monograph or Collective Volume | Limerick Museum and Archives | 2014 |
| City of streams : Galway folklore and folk life in the 1930s | Hastings, Caitríona | Monograph or Collective Volume | The History Press Ireland | 2017 |
| Clabby on the Map: the Church of Ireland parish of Clabby and its people | Murrow, Samuel B. | Monograph or Collective Volume | [Clabby parish] | 2006 |
| Claddagh cemetery book, 1843-1881 | Anonymous | Article in Book | | 1991 |
| Claims-making and the construction of legitimacy : press coverage of the 1981 Northern Ireland hunger strike | Mulcahy, Aogán | Article in Journal | | 1995 |
| Clanabogan Parish Church : Diocese of Derry : a short description of its beautiful marble decoration | Benson, T.W. | Monograph or Collective Volume | [The author?] | c. 1932 |
| Clane Abbey | Stokes, George | Article in Journal | | 1902 |
| Clare Island : the Abbey and its paintings | Manning, ConlethMorton, Karina | Monograph or Collective Volume | Archaeology Ireland | 2009 |
| Class conflict in a pre-industrial society : Dublin in 1780 | O'Connell, Maurice R. | Article in Journal | | 1965 |
| Classical churches in Ulster | Curl, James Stevens | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1980 |
| Clergy of Killaloe, Kilfenora, Clonfert and Kilmacduagh | Leslie, J. B. (James Blennerhassett) | Monograph or Collective Volume | Ulster Historical Foundation and Diocesan Council of Limerick and Killaloe | 2010 |
| Clergy of Kilmore, Elphin and Ardagh : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Kilmore, Elphin and Ardagh | 2008 |
| Clergy of Limerick,
Clergy of Ardfert and Aghadoe :
biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Church of Ireland. Diocese of Limerick. Diocesan Council|Church of Ireland. Diocese of Ardfert and Aghadoe Diocesan Council | 2015 |
| Clergy of Tuam, Killala and Achonry : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Tuam, Killala and Achonry | 2008 |
| Clergy of Waterford, Lismore and Ferns : biographical succession lists | | Monograph or Collective Volume | Ulster Historical Foundation|Diocesan Council Cashel, Ossory and Ferns | 2008 |
| Clergy who served in Castlebridge | Gahan, John | Article in Book | | 2005 |
| Clerical and learned lineages of medieval Co. Clare : a survey of the fifteenth-century papal registers | McInerney, Luke | Monograph or Collective Volume | Four Courts | 2014 |
| Clerical and parish libraries | Hunt, Arnold | Article in Book | | 2006 |
| Clerical income and its sources in the parish of Moycullen, in the wardenate of Galway, in pre-Famine Ireland, 1786-1823 | Hargett, CraigLarkin, Emmet | Article in Journal | | 2009 |
| Clerical indiscipline and ecclesiastical authority in Ireland 1690-1750 | O'Flaherty, Eamon | Article in Journal | | 1992 |
| Clerical indiscipline and ecclesiastical authority in Ireland, 1690-1750 | O'Flaherty, Eamon | Article in Journal | | 1992 |
| Clerical lawyers in thirteenth-century Limerick | Swift, Catherine | Article in Book | Four Courts Press | 2024 |
| Clerics and clansmen: the vicarages and rectories of 'Tradraighe' in the fifteenth century | McInerney, Luke | Article in Journal | | 2008 |
| Clerics as rulers : some implications of the terminology of ecclesiastical authority in early medieval Ireland | Davies, Wendy, 1942- | Article in Book | | 1982 |
| Clochar na Righ (Clogher of the Kings): being a history of the Town and District of Clogher, in the County of Tyrone. Also some account of the Parish of Errigal Keeroge, in the County of Tyrone, and of the Parish of Errigal Truagh in the County of Monaghan | Marshall, John J. | Monograph or Collective Volume | Tyrone Printing Co. | 1930 |
| Clogher in Celtic and Anglo-Norman Ireland | Connolly, A. G. | Article in Book | | 1940 |
| Clogher parish : some early sidesmen, 1662-1734 | Johnston, Jack | Article in Journal | | 1991 |
| Clogher record album : a diocesan history | | Monograph or Collective Volume | Cumann Seanchais Chlochair | 1975 |
| Clogher's altars of the penal days | Ó Gallachair, Pádraig | Article in Journal | | 1957 |
| Clogherici : a dictionary of the Catholic clergy of the diocese of Clogher (1535-1835) | Ó Gallachair, Pádraig | Article in Journal | | 1986 |
| Clonard as a diocesan town | Hickey, Elizabeth | Article in Journal | | 1999 |
| Clondalkin | Sherlock, Canon | Article in Journal | | 1908 |
| Clone, Ferns - a meadow of St Aidan | Corlett, ChrisElliott, Ian, 1936-2015Lacey, BarryMandal, StephenShine, Denis | Article in Journal | | 2020 |
| Clones and her neighbours in the early period : hints from some Airgialla saints' lives | McCone, Kim | Article in Journal | | 1984 |
| Clonfeacle, an early Monastic site | Long, Chris | Article in Journal | | 2005 |
| Clonkeen church Co. Limerick: the West Door | O'Sullivan, Aidan | Article in Journal | | 2016 |
| Clonkyne Leix | Comerford, M., P.P. | Article in Journal | | 1883 |
| Clonmacnois - the church and lands of St. Ciarán : change and continuity in an Irish monastic foundation (6th to 16th century) | Kehnel, Annette | Monograph or Collective Volume | Lit | 1997 |
| Clonmacnois and the 12th century synods | Ó Maoleachlainn, Pádraig I. | Article in Journal | | 1974 |
| Clonmacnois as a diocese | MacNamee, James Joseph | Article in Journal | | 1945 |
| Clonmacnois by Beranger, 1779 | | Article in Journal | | 1973 |
| Clonmacnoise - when experts meet ..... | Ó Ríordain, Dúlra | Article in Journal | | 1998 |
| Clonmacnoise castle | Manning, ConlethO'Conor, Kieran, | Article in Book | | 2003 |
| Clonmore Rectory in 1407 and doubts on the Calendar of Papal Letters | O'Brien, Niall C.E.J. | Article in Journal | | 2017 |
| Closing down the airwaves : the story of the broadcasting ban | Moloney, Ed, 1948- | Article in Book | | 1991 |
| Cloverhill : a church of Ireland parish in County Cavan, c.1720-2010 | Cherry, Jonathan | Monograph or Collective Volume | Geography | 2010 |
| Cluain Coirpthe and Kinel Dofa | Farrell, Alan
| Article in Journal | | 1996 |
| Coarbs and erenachs north-west Ulster in the seventeenth century | Finegan, Cajetan | Article in Journal | | 1948 |
| Coastwise sail | Anderson, John | Monograph or Collective Volume | | 1948 |
| Cogitosus's Life of St Brigid : content and value | Connolly, SeánPicard, Jean-Michel | Article in Journal | | 1988 |
| Colin Johnston Robb and the 'Irish Ecclesiastical Record' | Ní Chearbhaill, Máire
| Article in Journal | | 2021 |
| Collon Church, Co. Louth | Rountree, John | Article in Journal | | 2015 |
| Collon's churches | Bellew, SéamusRoe, Séamus | Article in Journal | | 2015 |
| Colonel Myles O'Reilly, Sheriff of Co. Cavan, 1641 | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1935 |
| Colonel Richard Grace, governor of Athlone, 1646-1691 | Kelly, J. J. | Article in Journal | | 1912 |
| Colonel Richard Grace, governor of Athlone, 1646-1691 | Kelly, J. J. | Article in Journal | | 1913 |
| Colonial monasticism, the politics of patronage, and the beginnings of Gothic in Ireland : the Victorine cathedral priory of Newtown Trim, Co. Meath | Bates, Rhiannon CareyO'Keeffe, Tadhg | Article in Journal | | 2017 |
| Colonial policing : The Steward of Christendom and The Whereabouts of Eneas McNulty | Cullingford, Elizabeth Butler | Article in Journal | | 2004 |
| Colum Cille and the Columban tradition | Lacey, Brian | Monograph or Collective Volume | Four Courts | 1997 |
| Colum Cille and the diocese of Derry | Lacey, Brian | Article in Book | | 2000 |
| Colum's other island : the Irish at Lindisfarne | Dunleavy, G. W. (Gareth W.). | Monograph or Collective Volume | University of Wisconsin Press | 1960 |
| Columba, Adomnan and the achievement of Iona. 2 pts. | Bullough, D. A. | Article in Journal | | 1965 |
| Columban churches in Brega and Leinster : relations with the Norse | Bhreathnach, Edel | Article in Journal | | 1999 |
| Columbanian monastic rules; dissent and experiment | Diem, Albrecht | Article in Book | | 2016 |
| Columbanian monasticism: a contested concept | Wood, Ian | Article in Book | | 2016 |
| Columbanus 'ad locum': The establishment of the monastic foundations | O'Hara, Alexander | Article in Journal | | 2015 |
| Columbanus and Gennadius | Cedro, Carlo | Article in Journal | | 2021 |
| Columbanus and Gildas | Winterbottom, Michael | Article in Journal | | 1976 |
| Columbanus and Jonas of Bobbio: new textual witness | O'Hara, Alexander
| Article in Journal | | 2012 |
| Columbanus and the Easter controversy: theological, social and political contexts | Corning, Caitlin | Article in Book | | 2016 |
| Columbanus' monastic life and education in Ireland | Breen, Aidan | Article in Journal | | 2011 |
| Columbanus's monasticism and the sources of his inspiration : from Basil to the Master? | Stancliffe, Clare | Article in Book | | 2011 |
| Columbanus, charisma and the revolt of the monks of Bobbio- | Dunn, Marilyn | Article in Journal | | 2008 |
| Comments on the present state of the Patrician problem | Carney, James Patrick, 1914-1989 | Article in Journal | | 1959 |
| Comments on the stained glass, 'Irish Builder', 1st March 1875 | Irish Builder | Article in Book | | 2000 |
| Commissioners of ecclessiastical enquiry | Anonymous | Monograph or Collective Volume | | 1837 |
| Commissioners under the Patriot Parliament, 1689 | Preston, Christopher | Article in Journal | | 1950 |
| Commissioning of bishop's messengers, St. Thomas's Church, Belfast | | Monograph or Collective Volume | [St. Thomas's Church] | 1953 |
| Commodius temples : Roman Catholic church building in nineteenth-century Dublin | Grimes, Brendan | Monograph or Collective Volume | Dublin City Public Libraries | 2010 |
| Communal solitude : the archaeology of the Carthusian houses of Great Britain and Ireland, 1178-1569 | Breeden, Francesca | Thesis | | |
| Communications | Nowlan, Kevin B. | Article in Book | | 1957 |
| Communications and community : problems and prospects | Farrell, Brian | Article in Book | | 1984 |
| Communications and the community | Doolan, LeliaDowling, Jack | Article in Journal | | 1984 |
| Community radio memories : Dublin South FM | Purcell, Mike | Article in Book | | 2007 |
| Community radio, co-operation and the new technologies | Byrne, Jack | Article in Book | | 1989 |
| Compendium annalium ecclesiasticorum regni Hiberniae | Porter, Francis | Monograph or Collective Volume | | 1690 |
| Competitive feasting in the neolithic | Cross, Sarah | Article in Journal | | 2001 |
| Complete summary listing of journal holdings Dublin Diocesan Library | Catholic Church (Ireland) Archdiocese of Dublin Library | Monograph or Collective Volume | Dublin Diocesan Library | 1991 |
| Composite monarchies in early modern Europe : the British and Irish example | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Article in Book | | 1995 |
| Compulsory school attendance in Ireland | Murray, Francis | Article in Journal | | 1944 |
| Conamara revolution | Quinn, Bob | Article in Journal | | 2014 |
| Concerning Hugh Peters in Ireland : Carlyle and some historians | Williams, Joseph Batterson [i.e. Muddiman, Joseph George] | Article in Journal | | 1911 |
| Concerning the origin of early medieval Irish monasticism | Sheehy, Maurice P. | Article in Journal | | 1962 |
| Conchobor ua Maíl Shechnaill and the church of Kildalkey in the 'notitiae' of the Book of Kells (c. 1030s) | Casey, Denis | Article in Journal | | 2023 |
| Conclusion : Celtic Christianities in the age of Reformations : language, community, tradition and belief | Armstrong, Robert | Article in Book | | 2014 |
| Conflict over the rectory of Cinel Luachain during the fifteenth century | Boyle, Leonard E.Earley, Joseph E. | Article in Journal | | 1999 |
| Conformity and radicalism within the Catholic church : the case of the Northern Ireland crisis | McElroy, Gerald | Article in Book | | 1991 |
| Confraternity letters of the Irish Observant Franciscans and their benefactors | Gribbin, J. A.Ó Clabaigh, Colmán N. | Article in Journal | | 2002 |
| Congrega seniores provinciae : a note on a Hiberno-Latin canon law concerning the source of authority in ecclesiastical law | Brasington, Bruce Clark, 1957- | Article in Book | | 2006 |
| Conquest, coexistence and change : Wales, 1063-1415 | Davies, Robert Rees, Sir, 1938-2005 | Monograph or Collective Volume | Oxford University Press | 1987 |
| Conrad Russell's ideas | Sanderson, John | Article in Journal | | 1993 |
| Consecration crosses at Castlemartyr | Manning, Conleth | Article in Journal | | 2013 |
| Consent, consummation and indissolubility : some evidence from mediaeval ecclesiastical courts | Cosgrove, Art | Article in Journal | | 1991 |
| Conservation and restoration of the north arcade wall | McCarthy, Mary-Liz ; Clancy, Kevin ; Walsh, Denis | Article in Book | | 2022 |
| Conservation at Clonfert : discoveries made during work on the Romanesque portal | Ellis, Jason | Article in Journal | | 2003 |
| Conservation plan : the National Cathedral and Collegiate Church of Saint Patrick, Dublin | Hanna, Mary | Monograph or Collective Volume | St. Patrick's Cathedral | 2006 |
| Conservation works at Cormac's Chapel | O'Dea, Michele | Article in Journal | | 2018 |
| Conserving the dream : treasures of St. Finbarre's Cathedral | | Monograph or Collective Volume | Heritage Council | 2005 |
| Contemporary Irish church architecture | Cantwell, WilfredHurley, Richard | Monograph or Collective Volume | Gill & Macmillan | 1985 |
| Contending coarbs:"Cindus fuair Mlaise in Bealach?" | Smith, Peter J. | Article in Journal | | 2014 |
| Contested consecrations and the pursuit of ecclesiastical independence in Scotland and Ireland in the early 1120s | O'Leary, Aideen M. | Article in Journal | | 2018 |
| Continuing the story of the Hastings Farmhouse Restoration Project | Carey, Olive | Article in Journal | | 2024 |
| Continuity and change : the material setting of public worship in the sixteenth-century Pales | Moss, Rachel | Article in Book | | 2011 |
| Contrasting communities : a comparative approach to Irish communities in baroque Europe | Gillespie, Raymond | Article in Book | | 2010 |
| Contrasting fortunes of two Fingal 'Big Houses', Kenure House and Ardgillan Castle in modern times | Whearity, Peter F. | Article in Journal | | 2008 |
| Contrasting Irish - Australian responses to Empire : Hugh Mahon M.H.R and Senator Paddy Lynch | Cusack, Danny | Article in Journal | | 2005 |
| Contrasting Irish and Norse accounts of Sigtryggr Silkiskegg, a tenth- and eleventh-century king of Dublin | Ó Broin, Brian | Article in Book | | 2013 |
| Contrasting natures : the issue of names | Lysaght, Sean | Article in Book | | 1997 |
| Contrasting regimes : population growth in Ireland and Scotland during the eighteenth century | Tyson, R. E. | Article in Book | | 1995 |
| Contrasting similarities : Bishops Troy and Lisovskii in Ireland and Belorussia in the age of the French Revolution | Flynn, James T. | Article in Journal | | 2001 |
| Contrasting susceptibility to famine in early fourteenth- and late sixteenth-century England: the significance of late medieval rural social structural and village governmental changes | Smith, Richard | Article in Book | | 2017 |
| Contribution to a history of the Basilica of Saint Clement in Rome | Kane, Eileen | Article in Journal | | 1984 |
| Contributions towards the political history of Munster, 450-800 AD | Ó Buachalla, Liam | Article in Journal | | 1956 |
| Controversies and ethnic tensions | Flechner, RoyMeeder, Sven | Article in Book | | 2016 |
| Controversy and schism in the Synod of Ulster in the 1820's | Holmes, Finlay | Article in Book | | 1981 |
| Convenants and constitutions in Irish Baptist churches | Thompson, Joshua | Article in Journal | | 1989 |
| Convent archives as sources for Irish history | Luddy, Maria | Article in Book | | 2005 |
| Convention of Drumceatt, 575: XIVth centenary 1975 | Barbour, Liam M.Boyd, Hugh AlexanderClarke, WallaceClayden, Stanley C.Moore, R. DenholmMorton, T. RalphRoemmele, Peter M.Seymour, A. N.Simms, George OttoWalsh, John R. | Monograph or Collective Volume | | 1975 |
| Converging worlds : Paul Cullen in the world of Mauro Cappellari | Korten, Christopher | Article in Book | | 2011 |
| Conversion and consolidation in Leinster's royal heartland | Gleeson, PatrickÓ Carragáin, Tomás | Article in Book | | 2016 |
| Conversion to Christianity | Charles-Edwards, T. M. (Thomas Mowbray) | Article in Book | | 2003 |
| Conversion, church and cathedral : the diocese of Dublin to 1152 | Clarke, Howard B. | Article in Book | | 2000 |
| Conwal Parish, Letterkenny Church, 1636-1986 | Slater, Joan | Monograph or Collective Volume | [Conwal parish] | 1986 |
| Coolbanagher medieval font - an insight | Murray, Sean | Article in Journal | | 2016 |
| Corbelled Drystone Churches | Ó Carragáin, Tomas | Article in Book | | 2022 |
| Corcomroe Abbey and the English Medieval Wool Trade | Mac Mahon, Michael | Article in Journal | | 2024 |
| Corcomroe Abbey ship graffito: a sacred and secular symbol | Lochnan, Katherine | Article in Journal | | 2011 |
| Cork : a diocesan history | Bolster, Angela | Article in Journal | | 1973 |
| Cork with Ross, A.D. 1199 | Ó Foghludha, Risteárd | Article in Journal | | 1952 |
| Cormac's Chapel : the beginnings of Irish romanesque | De Paor, Liam | Article in Book | | 1967 |
| Cornerstone of memory : John Hughes & St. Patrick's Cathedral: sixteenth Ernie O'Malley lecture, 2014 | Casey, Marion R. | Article in Journal | | 2015 |
| Coroticus eile - naomh Breatnach | Ó Fiannachta, Pádraig | Article in Journal | | 1957 |
| Corpus genealogiarum sanctorum Hiberniae | | Monograph or Collective Volume | Institute for Advanced Studies | 1985 |
| Correspondence of Abp Carpenter, with BP Sweetman of Ferns | Curran, Michael | Article in Journal | | 1956 |
| Correspondence of Irish interest in the Lettere in Propaganda Archives, vol. 38 (1657-1664) | | Article in Journal | | 1990 |
| Councils and ecclesiastical documents relating to Great Britain and Ireland | | Monograph or Collective Volume | | 1869 |
| Councils and synods of the Gaelic early and central Middle Ages | Dumville, David N. | Monograph or Collective Volume | University of Cambridge, Department of Anglo-Saxon, Norse, and Celtic | 1997 |
| Count Ó Donel proposes a coadjutor for the see of Raphoe, 1777 | O'Donnell, Terence | Article in Journal | | 1954 |
| Counter-reformation problems : Munster | Olden, Michael | Article in Journal | | 1965 |
| Court Abbey, A Franciscan Third Order Regular Friary, Lavasgh, Co. Sligo | Conroy, Elaine | Article in Journal | | 2021 |
| Cows eat grass, don't they? contrasting sociotechnical imaginaries of the role of grazing in the UK and Irish dairy sectors | Shortall, Orla | Article in Journal | | 2019 |
| Cows eat grass, don't they? contrasting sociotechnical imaginaries of the role of grazing in the UK and Irish dairy sectors | Shortall, Orla | Article in Journal | | 2019 |
| Craft as union, craft as demarcation : the decoration at Belfast cathedral | McBrinn, Joseph | Article in Book | | 2008 |
| Crafts and religious guilds in Dublin : the accounts of Holy Trinity guild, 1549-1558 | Gillespie, Raymond | Article in Book | | 2009 |
| Creating space : the education of a broadcaster | O'Mahony, Andy | Monograph or Collective Volume | Liffey Press | 2016 |
| Cremore Presbyterian Church, 1802-2002 | Anonymous | Article in Journal | | 2003 |
| Cromwell's massacre at Wexford | Williams, Joseph Batterson [i.e. Muddiman, Joseph George] | Article in Journal | | 1913 |
| Crosses in County Down | Hamlin, Ann | Article in Journal | | 2000 |
| CRY in the afternoon : the early days in Youghal | Cronin, Noel | Article in Book | | 2007 |
| Cu Chuimne, Ruben and the compilation of the Collectio canonum hibernensis | Jaski, Bart | Article in Journal | | 2000 |
| Cú Chulainn in Wales : Welsh sources for Irish onomastics | Sims-Williams, Patrick | Article in Journal | | 1990 |
| Cuairt an Ard-easbaig Cróc ar Thír Chonaill (1891) | Ó Baoighill, Pádraig | Article in Journal | | 2006 |
| Cuimhní ar Jerry Hicks | Ó Bléine, Ruairi | Article in Journal | | 1996 |
| Cult, church and collegiate church before c.1220 | Clarke, Howard B. | Article in Book | | 2009 |
| Cultivating their own garden : broadcasting and culture in Northern Ireland in the 1930s and 1940s | McIntosh, Gillian | Article in Journal | | 2001 |
| Cultural affiliations of early Ireland in the penetentials | Oakley, Thomas Pollock | Article in Journal | | 1933 |
| Cultural transfer and textual migration : Sir Bevis comes to Ireland | Poppe, Erich | Article in Book | | 2017 |
| Culture and diplomacy. The Spanish Hapsburg dimension in the Irish Counter Reformation movement, c.1529-c.1629 | Downey, Declan M. | Thesis | | 1994 |
| Culture and politics yesterday and today|Culture et politique hier et aujourd'hui | Farinella, Enzo | Monograph or Collective Volume | GrafiSer | 2019 |
| Culture and religion, 1815-70 | Hill, Myrtle | Article in Book | | 2011 |
| Culture, democracy and public service broadcasting | Higgins, Michael D. | Article in Book | | 2005 |
| Cumann Buan - Choiméadta na Gaeilge : tús an Athréimnithe | Ó Murchu, Mairtin | Monograph or Collective Volume | Cois Life Teoranta | 2001 |
| Cummian's Letter de Controversia Paschalia and the De Ratione Conputandi | | Monograph or Collective Volume | | 1988 |
| Cushendun Old Church | Goyer, Kerry | Article in Journal | | 2007 |
| Custos spiritualitatis sede vacante (Dublin) | Luce, A. A. | Article in Journal | | 1939 |
| Cyprianus Anglicus, or The history of the life and death, of the most reverend and renowned prelate William, by divine providence, Lord Archbishop of Canterbury; ... containing also the ecclesiastical history of England, Scotland and Ireland, from his first rising till his death | Heylyn, H.Heylyn, Peter, 1599-1662 | Monograph or Collective Volume | | 1668 |
| Dagger John : Archbishop John Hughes and the Making of Irish America | Loughery, John | Monograph or Collective Volume | Cornell University Press | 2018 |
| Daire Mór and Longford pass | Manning, Conleth | Article in Journal | | 1998 |
| Daire Mór identified | Manning, Conleth | Article in Journal | | 1997 |
| Dalkey Island adventure 2003 | Flynn, Mairead | Article in Journal | | 2018 |
| Dancing as a social pastime in the south-east of Ireland, 1800-1897 | Friel, Mary | Monograph or Collective Volume | Four Courts | 2004 |
| Dandys, luggers, herring and mackerel : a local study in the context of the Irish Sea fisheries in the nineteenth century | McCaughan, Michael | Article in Book | | 1989 |
| Daniel Grose's 1792 drawing of Castledermot parish church | Harbison, Peter | Article in Journal | | 1992 |
| Daniel Grose's depictions of the island monasteries of Lough Ree | Murtagh, Harman | Article in Book | | 2015 |
| Daniel Mannix, priest and patriot | Gilchrist, Michael | Monograph or Collective Volume | [s.n.] | 1982 |
| Daniel Murphy c.1842-1924. Builder, Market Street, Bandon | Canniffe, Pat | Article in Journal | | 2019 |
| Daniel Murray, 1768-1852 | Flannery, Maeve | Article in Journal | | 2008 |
| Daniel Murray, archbishop of Dublin, 1823-1852 | Lysaght, Moira | Article in Journal | | 1974 |
| Daniel Murray, archbishop of Dublin, 1823-1852 | Murray, P. J. | Article in Journal | | 1985 |
| Danish church frescoes : a clue to medieval Irish art | Mills, James | Article in Journal | | 1979 |
| Dark walled up with stone : contrasting images of Irish Catholicism | Kenny, Colum | Article in Journal | | 2014 |
| Das Bibelwerk : Organisation and Quellenanalyse of the New Testament section | Kelly, J. F. T. | Article in Book | | 1987 |
| Das Irenkloster Honau und seine Regel | Eberl, Immo | Article in Book | | 1982 |
| Das Papsttum und die bayerische Kirche - Bonifatius als Gegenspieler Virgils | Schmidinger, Heinrich | Article in Book | | 1985 |
| Dating the Irish synods in the Collectio canonum hibernensis | Richter, Michael, 1943-2011 | Article in Journal | | 2000 |
| David Hammond (1928-2008) : Some personal memories by Proinsias Ó Conluain | Ó Conluain, Proinsias | Article in Journal | | 2010 |
| David Moriarty (1814-77) : 1, the making of a bishop | O'Shea, Kieran | Article in Journal | | 1972 |
| David Moriarty (1814-77) : 4, ecclesiastical affairs | O'Shea, Kieran | Article in Journal | | 1973 |
| David Ó Bruadair | Murphy, Gerard | Article in Journal | | 1952 |
| David Rothe | Hegarty, Maureen | Article in Journal | | 1979 |
| Davide Moriarty's episcopal leadership in the diocese of Kerry, 1854-77 | Rafferty, Oliver P. | Article in Book | NA | 2020 |
| De doctrina Ioannis duns Scoti : Acta Congressus Scotistici Internationis Oxonii et Edimburghi, 11-17 Sept. 1966., celebrati, Vol. 4 : Scotismus decursu saeculorum | Giblin, Cathaldus | Monograph or Collective Volume | Studia Scholastico-Scotistica | 1968 |
| De initiis : Irish monastic learning, 600-800 AD. | McNamara, Martin | Article in Journal | | 2013 |
| De Monasterio Desolato : patronage and politics in a frontier Irish convent | Seale, Yvonne | Article in Journal | | 2015 |
| De oratorio : Hisperica famina and church building | Brady, Niall | Article in Journal | | 1997 |
| De statu ecclesiae of Gilbert of Limerick | Pike, Brigid | Thesis | | 1976 |
| Dean Richardson's further account of com. Cavan | Davies, OliverGaffikin, M.Paterson, T.G.F. | Article in Journal | | 2013 |
| Deane's western architectural gems | Murphy, Oliver | Article in Journal | | 2011 |
| Dearcadh na nGael ar Dhia sna Meán-aoiseanna | Ó Héalaí, Pádraig | Article in Book | | 1971 |
| Death and burial in Ireland’s early medieval ‘Cities of God’ : new insights into early ecclesiastical burial practices in light of the emerging archaeological evidence | Harney, Lorcan | Article in Journal | | 2018 |
| Death comes to the archbishop | Dempsey, Anthony | Article in Journal | | 1939 |
| Death in the garden: Patrick Byrne's mortuary chapel at Goldenbridge Cemetery, Dublin | Hurley, Livia | Article in Journal | | 2016 |
| Deconstructing the Archive? A reflection on collection-centred ethnology in the Irish context | O'Connor, Anne | Article in Journal | | 2010 |
| Decrees of a Meath diocesan synod, 1686 | | Article in Journal | | 1957 |
| Decreta of late eleventh-century Irish bishops-elect | Holland, Martin
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| Dedicated to St. Anne | Scarlett, Duncan | Monograph or Collective Volume | Choice Publishing and Book Services in co-op with Duncan Scarlett | 2007 |
| Dedication and restoration of St. Patrick's Cathedral, Armagh | Anonymous | Article in Journal | | 2003 |
| Defamation and the church courts in early sixteenth-century Armagh | McCafferty, John | Article in Journal | | 1994 |
| Defending the established order : Richard Woodward, bishop of Cloyne (1726-94) | Kelly, James, 1959- | Article in Book | | 2009 |
| Deference, accommodation and conflict in Irish confessional relations | Comerford, R. V. (Richard VIncent) | Article in Book | | 2015 |
| Demolition of the church of St Mary on the Hill : 1651 : agreement between the mayor of Galway and Prior Pierce Butler | Anonymous | Article in Book | | 1991 |
| Denis Harty : vicar apostolic of Killaloe, 1657-1667 | Murphy, Ignatius | Article in Journal | | 1989 |
| Denis Johnston : a life | Adams, Bernard | Monograph or Collective Volume | Lilliput | 2002 |
| Deoise Ard Mhacha sa dara céad déag | Ó Ciobháin, Breandán | Article in Journal | | 1978 |
| Deoisí na hÉireann i ndiaidh Shionaid Cheanannais, 1152 - Téacsanna | Ó Ciobháin, Breandán | Article in Journal | | 1973 |
| Deoisí na hÉireann i ndiaidh Shionaid Cheannannais, 1152 - foinsí éagsúla | Ó Ciobháin, Breandán | Article in Journal | | 1973 |
| Deoisí na hÉireann i ndiaidh Shionaid Cheannannais, 1152 - nótaí téacsa | Ó Ciobháin, Breandán | Article in Journal | | 1973 |
| Deoisí na hÉireann i ndiaidh Shionaid Cheannannais, 1152 - Téacsanna | Ó Ciobháin, Breandán | Article in Journal | | 1973 |
| Dependent or independent? The Church of Ireland and its colonial context, 1536-1649 | Ford, Alan, 1956- | Article in Journal | | 1995 |
| Der Liber ex lege Moysis | Kottje, Raymund | Article in Book | | 1987 |
| Derbforgaill: twelfth-century abductee, patron and wife | Ó Hoireabhárd, Seán | Article in Journal | | 2022 |
| Derriaghy : a short history of the parish | Barr, W. N. C., Rev. | Monograph or Collective Volume | W. N. C. Barr | 2006 |
| Derry : an outline history of the diocese | Bonner, Brian | Monograph or Collective Volume | Foilseachain Naisiunta Teo | 1982 |
| Derry Cathedral : a book of the bells : service of dedication, July 25th, at 6.30p.m.: the story of the bells 1614-1929 | Derry Cathedral | Monograph or Collective Volume | David Irvine [printer] | 1929 |
| Derry Cathedral : a book of the bells : service of dedication, July 25th, at 6.30p.m.: the story of the bells 1614-1929 | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Article in Journal | | 1917 |
| Derry Diocesan Archive | Daly, Edward | Article in Journal | | 2005 |
| Derry diocese on the eve of the plantation | Jefferies, Henry A. | Article in Book | | 1999 |
| Derry, Iona, England and the governance of the Columban church | Dumville, David N. | Article in Book | | 1999 |
| Derrynaflan and other early church treasures | Richardson, Hilary | Article in Journal | | 1980 |
| Design and function : the construction and decoration of Cormac's Chapel at Cashel | Stalley, Roger | Article in Book | | 2006 |
| Design sources for St Patrick's Cathedral, Dublin, and its relationship to Christ Church Cathedral | O'Neill, M. | Article in Journal | | 2000 |
| Details of the restoration of Christ Church Cathedral, Dublin with a brief history of its preceding condition, from the date of its supposed foundation (A.D. 1038) to the present time | M'Vittie, Robert B. | Monograph or Collective Volume | Porteous and Gibbs | 1878 |
| Dhá athchuinge as Achaidh Chonaire | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1961 |
| Dialogue not monologue : Connemara Community Radio | Ruddy, MaryWalshe, Pat | Article in Book | | 2007 |
| Diarmait Mac Murchada and Romanesque Leinster : four twelfth-century churches in context | O'Keeffe, Tadhg | Article in Journal | | 1997 |
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| Dictionary of the American hierarchy (1789-1964) | Code, J. B. | Monograph or Collective Volume | Wagner | 1964 |
| Dictionnaire d'histoire et de géographie ecclésiastiques. Fascicule 63, Camaldules-Cantabri | | Monograph or Collective Volume | | 1948 |
| Did Bishop Malchus of Waterford resign because of the Synod of Raithbreasail? | O'Connor, Dónal | Article in Journal | | 2012 |
| Die Baugeschichte der Regensburger Schottenkirche St. Jakob und ihres Kreuzgangs | Stocker, Mona | Article in Book | | 2005 |
| Die Darstellung der Frankenapostel in der deutschen Plastik | Reuther, Hans | Article in Book | | 1952 |
| Die Entstehung der Kathedrale | Sedlmayer, Hans | Monograph or Collective Volume | Atlantis-Verlag | 1950 |
| Die Iren und Europa im früheren Mittelalter. 2 vols. | | Monograph or Collective Volume | | 1982 |
| Die irische Kanonensammlung. | | Monograph or Collective Volume | | 1885 |
| Die Irischen handschriften der stiftsbibliothek St. Gallen | Duft, Johannes | Article in Book | | 1953 |
| Die Irischen Miniaturen der stiftsbiblioghek St. Gallen | Meyer, Peter | Article in Book | | 1953 |
| Die Rolle der Iren beim Aufbau der merowingischen Klosterkultur | Prinz, Friedrich | Article in Book | | 1982 |
| Different styles, same tradition | Hastings, Gary | Article in Journal | | 1996 |
| Dindshenchas Érenn: An Overview of Textual Scholarship | Ó Muraíle, Nollaig | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Dinnseanchas Inbhear Chíochmhaine, ‘trí comaccomail na Góedelge’, agus caibidil i stair litriú na Gaeilge. | Breatnach, Liam | Article in Book | | 2012 |
| Diocesan anomalies (the diocese of Connor) | Lawlor, H. C. (Henry Cairnes), 1870-1943 | Article in Journal | | 1939 |
| Diocesan dimensions of a die-hard dispute : Richard FitzRalph and the friars in evolving perspective | Haren, Michael | Article in Book | | 2006 |
| Diocesan synods and convocations in Armagh on the eve of the Tudor reformations | Jefferies, Henry A. | Article in Journal | | 1995 |
| Diocese of Achonry: church, land and history | Mac Cotter, Paul | Article in Journal | | 2014 |
| Diocese of Annaghdown | Fahey, J. | Article in Journal | | 1903 |
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| Diocese of Armagh : sources and problems | Ó Fiaich, Tomás | Article in Journal | | 1955 |
| Diocese of Clogher : parochial records, Monaghan | McKenna, James E. | Monograph or Collective Volume | [Fermanagh Herald Office] | 1920 |
| Diocese of Killaloe. Vol. 3 : 1851-1904 | Murphy, Ignatius | Monograph or Collective Volume | Four Courts | 1995 |
| Diocese of Kilmore (1678-1728) | MacKiernan, Francis J. | Article in Journal | | 2002 |
| Diocese of Meath : historical sketch | Mills, Thomas | Article in Book | | 1938 |
| Diocese of Raphoe, 1773-1805 | Silke, John J. | Article in Journal | | 1985 |
| Directory of the Catholic clergy of the diocese of Cloyne & Ross, 1836-1893 : including available obituary lists | | Monograph or Collective Volume | B. Troy | 1994 |
| Discovering film on Irish television : fragments from RTÉ archives 1960–5 | Barber, Sian | Article in Journal | | 2018 |
| Disestablishment and the lay response | Milne, Kenneth | Article in Book | | 2002 |
| Disestablishment in Ireland and Wales | Lucas, John,Morris, Bob | Article in Book | | 2009 |
| Disestablishment – in the nick of time | Milne, Kenneth | Article in Journal | | 2019 |
| Distant Islands : the topography of holiness in the Nauigatio Sancti Brendani | O'Loughlin, Thomas | Article in Book | | 1999 |
| Disturbing the peace? Politics, television news and the Northern Ireland peace process | Spencer, Graham | Monograph or Collective Volume | Ashgate | 2000 |
| Dive Downes' journal in Carbery | Downes, Dive | Article in Journal | | 2010 |
| Divided by a common religion : ecclesiastical identity and the creation of a 'savage other' in medieval Dublin and Wicklow | Lawlor, Chris | Article in Book | NA | 2021 |
| Divine law in the Pauline commentary of the eighth-century Hiberno-Latin "reference Bible" | Carella, Bryan | Article in Journal | | 2011 |
| Dlithe an Domhnaigh in Éireann 600-750 A.D. | Herbert, Máire | Article in Book | | 1997 |
| Doctrinal instruction in Irish : the work of Antony Gearnon, O.F.M. | Wall, Thomas | Article in Journal | | 1944 |
| Doctrinal instruction in Irish: the work of Theobald Stapleton | Wall, Thomas | Article in Journal | | 1943 |
| Documentos de interés para Alcalá de Henares en la sección de manuscritos de Biblioteca Nacional de Madrid | Ballesteros Torres, Pedro | Article in Journal | | 2000 |
| Documents concerning the Collegium Pastorale Hibernicum of Louvain, 1624 | | Article in Journal | | 1951 |
| Documents concerning the diocese of Meath | | Article in Journal | | 1942 |
| Documents relating to the appointment of John Stafford as coadjutor to the bishop of Ferns, 1772 | Corish, Patrick J. | Article in Journal | | 1972 |
| Documents relating to the suppression of the Templars in Ireland | | Article in Journal | | 1967 |
| Doire na bhFlann alias Doire Eidhneach : an historical and onomastic study | Ó Muraíle, Nollaig | Article in Journal | | 1980 |
| Dominic Maguire, O. P. Archbishop of Armagh : 1684-1707 | Fenning, Hugh | Article in Journal | | 1999 |
| Dominicans in Cork city : a history | Doherty, Gillian | Monograph or Collective Volume | Carrigtwohill | 2024 |
| Domnach Mór Meic Laithbe | Moore, Eoghan | Article in Journal | | 2014 |
| Don Tarmchrutta - An 11th-century homily on the Transfiguration | Mac Donncha, F. | Article in Journal | | 1983 |
| Donacomper Church | Kirkpatrick, W. T. | Article in Journal | | 1899 |
| Donegal abbey : the buildings | Leask, H. G. (Harold G.) | Article in Book | | 1952 |
| Donegal and Derry bishops help decide 1911 North Tyrone by-election | Dooher, John | Article in Journal | | 2010 |
| Donegal's Presbyterians : the Ulster-Scots connection | Baraniuk, Carol,Fergusan, Frank | Article in Book | | 2013 |
| Doneraile Catholic Church | Shine, Michael | Article in Journal | | 1997 |
| Donncha : walking and talking with Donncha Ó Dúlaing | Ó Dúlaing, Donncha | Monograph or Collective Volume | Blackwater | 1998 |
| Down and its parish church | Pooler, L.A. | Monograph or Collective Volume | Down Recorder Office (Printer) | 1907 |
| Down Cathedral : the church of Saint Patrick of Down | Rankin, J. Frederick | Monograph or Collective Volume | Ulster Historical Foundation | 1997 |
| Downland, marsh, and weald : monastic foundation and rural intensification in Anglo-Saxon Kent | Thomas, Gabor | Article in Book | | 2016 |
| Dr Charles McNally's 'Relationi Status', October 1853 | Anonymous | Article in Journal | | 1989 |
| Dr Cullen's appointment to Armagh 1849 | Macaulay, Ambrose | Article in Journal | | 1980 |
| Dr Henry Cooke : the Athanasius of Irish presbyterianism | Holmes, Finlay | Article in Book | | 1978 |
| Dr Herman J. Heuser and Canon Sheehan | Gaffney, M. H. | Article in Journal | | 1939 |
| Dr James Donnelly, bishop of Clogher (1865-1893) and the ascendancy in Monaghan | Murnane, James H. | Article in Journal | | 1987 |
| Dr James Donnelly, bishop of Clogher (1865-1893) and the ascendancy in Monaghan. Part 2 | Murnane, James H. | Article in Journal | | 1988 |
| Dr James Louis O'Donnell (1737-1811), first bishop of Newfoundland | O'Connell, Philip | Article in Journal | | 1965 |
| Dr James Magauran, bishop of Ardagh (1815-29) | Traynor, Owen | Article in Journal | | 1972 |
| Dr John Carpenter, archbishop of Dublin, 1760-86 | Mac Giolla Phádraig, B. | Article in Journal | | 1976 |
| Dr Mannix | Brennan, Niall | Monograph or Collective Volume | Angus & Robertson | 1965 |
| Dr Michael Sheehan in Australia, 1922-1937 | Byrnes, Gregory | Article in Book | | 1991 |
| Dr Nicholas Madgett's 'Constitutio ecclesiastica' | | Article in Journal | | 1976 |
| Dr Peter Flood : president of Maynooth, 1798-1803 | Flood, J. M. | Article in Journal | | 1948 |
| Dr Plunket, bishop of Meath, 1779-1827 | Flood, J. M. | Article in Journal | | 1949 |
| Dr Richard Hayes : 'Limerick's most distinguished and enthusiastic franophile' | Lyons, J. B. (John Benignus) | Article in Journal | | 1989 |
| Dr Russell and Newman's conversion | Tristram, Henry | Article in Journal | | 1945 |
| Dr. Butler and the Jerusalem pony | O'Brien, Pat | Article in Journal | | 2001 |
| Dr. George Cromer, Archbishop of Armagh (1521-1543), and Henry VIII's reformation | Jefferies, Henry A. | Article in Book | | 2001 |
| Dr. Plunkett, bishop of Meath, 1779-1827 | Flood, J. M. | Article in Journal | | 1949 |
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| Dr. Thomas Hussey | Power, P. | Article in Journal | | 1935 |
| Drámaíocht ar an scáileán : scannáin i nGaeilge, 1951-96 | | Monograph or Collective Volume | Coiscéim | 2025 |
| Dressing the dead | Nicholl, John | Article in Journal | | 2020 |
| Dromore : an Ulster diocese | Atkinson, E. D. | Monograph or Collective Volume | W. Tempest, Dundalgan Press | 1925 |
| Dromore diocese, historical notes | | Monograph or Collective Volume | [s.n.] | 1939 |
| Druids, deer and 'words of power' : coming to terms with evil in medieval Ireland | Borsje, Jacqueline | Article in Book | | 2008 |
| Drumadoon bell shrine, one of the most significant archaeological finds in Ireland goes on display | Dennis, P. | Article in Journal | | 2004 |
| Drumcliffe : the Church of Ireland parish in its North Sligo setting | Durand, Stella | Monograph or Collective Volume | [Drumcliffe Parish] | 2000 |
| Drumlion Church | Keenehan, John | Article in Book | | 2006 |
| Dublaídi Dindshenchais: Studies on the Medieval Irish Place-Name Tradition | | Monograph or Collective Volume | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Dublin and the reform of the Irish church : eleventh and twelfth centuries | Holland, Martin | Article in Journal | | 2000 |
| Dublin churches | Costello, Peter | Monograph or Collective Volume | Gill & Macmillan | 1989 |
| Dublin diocesan archives | Curran, Michael | Article in Journal | | 1958 |
| Dublin diocesan archives - Hamilton papers (1) | Purcell, Mary | Article in Journal | | 1988 |
| Dublin Diocesan Archives : Hamilton papers (2) | Hamilton, JohnPurcell, Mary | Article in Journal | | 1990 |
| Dublin Diocesan Archives : Hamilton Papers (4) | Purcell, Mary | Article in Journal | | 1993 |
| Dublin diocesan archives : Hamilton papers (4) | Purcell, Mary | Article in Journal | | 1993 |
| Dublin Diocesan Archives : Hamilton Papers (5) | Purcell, Mary | Article in Journal | | 1994 |
| Dublin diocesan archives : Hamilton papers (5) | Purcell, Mary | Article in Journal | | 1994 |
| Dublin Diocesan Archives : Hamilton Papers (6) | Purcell, Mary | Article in Journal | | 1995 |
| Dublin Diocesan Archives : Hamilton Papers (7) | Purcell, Mary | Article in Journal | | 1996 |
| Dublin Diocesan Archives : Hamilton Papers (8) | Purcell, Mary | Article in Journal | | 1997 |
| Dublin Diocesan Archives : Hamilton papers (9) | Purcell, Mary | Article in Journal | | 1998 |
| Dublin Diocesan archives : Murray papers (4) | Purcell, Mary | Article in Journal | | 1984 |
| Dublin diocesan archives : Murray Papers (6) | Purcell, MarySheehy, David C. | Article in Journal | | 1986 |
| Dublin diocesan archives : Murray papers, 5 | Purcell, Mary | Article in Journal | | 1985 |
| Dublin in Middle Irish Leinster dynastic poetry | Bhreathnach, Edel | Article in Book | | 2010 |
| Dublin's Churches of St Nicholas | O'Meara, Liam | Article in Journal | | 2010 |
| Dublin's oldest roof? the choir of St Patrick's Cathedral | Lyons, Charles H. | Article in Book | | 2006 |
| Dublin's pro-cathedral, 1812-1975 | Purcell, Mary | Monograph or Collective Volume | [s.n.] | 1975 |
| Dublin’s lost medieval church of St Michael | Dooley, Sheila | Article in Book | | 2019 |
| Dublin’s stained glass : a guide to the finest twentieth-century windows | Caron, David | Monograph or Collective Volume | Four Courts Press | 2025 |
| Due North speaks to BBC Newsline's Donna Traynor | Traynor, Donna | Article in Journal | | 2002 |
| Duiske abbey, Graignamanagh : abbey triumphant | Hughes, E. W. | Article in Journal | | 1977 |
| Duleek's later urban development | French, Noel | Article in Journal | | 2017 |
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| Dunfanaghy's Presbyterian congregation and its times | MacArthur, C. W. P. | Monograph or Collective Volume | NA | 1978 |
| Dungiven Bawn Re-edified | Blades, B. S.Brannon, N. F. (Nick) | Article in Journal | | 1981 |
| Dynastic conflict in medieval Donegal, AD 800-1400 | Ó Canann, Tomás G. | Article in Book | | 2013 |
| Dynastic warfare and historical writing in North Munster, 1276-1350 | Nic Ghiollamhaith, Aoife | Article in Journal | | 1981 |
| Dynasties : Irish political families | Fallon, Johnny | Monograph or Collective Volume | New Island | 2011 |
| Dynasties of coercion | Molloy, Eanna | Monograph or Collective Volume | Field Day | 1986 |
| Early BBC attitudes to Irish language, music and culture | Ó Conluain, Proinsias | Article in Journal | | 1988 |
| Early bishops of Lismore | Power, P. | Article in Journal | | 1946 |
| Early Christian antiquities at Clonmore, county Carlow | Harbison, Peter | Article in Journal | | 1991 |
| Early Christian Ireland | Charles-Edwards, T. M. (Thomas Mowbray) | Monograph or Collective Volume | Cambridge University Press | 2000 |
| Early Christian Ireland : introduction to the sources | Hughes, Kathleen Winifred | Monograph or Collective Volume | Hodder and Stoughton | 1972 |
| Early Christian settlements in Burrishoole, Co. Mayo | Hyland, Breege | Article in Book | | 2021 |
| Early Christian sites | MacMahon, Bryan | Article in Book | | 2012 |
| Early churches - agriculture and food | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2017 |
| Early churches in the Faughan River valley, County Derry | Jefferies, Henry A.Johnston, Ethna | Article in Book | | 2000 |
| Early ecclesiastical art in Chorca Dhuibhne and its implications abroad | Kilbride-Jones, H. E. | Article in Journal | | 1986 |
| Early ecclesiastical precincts and landscapes of Inishowen, County Donegal | Adams, MaxO'Brien, Colm | Article in Book | | 2016 |
| Early ecclesiastical remains in Selloo and Kilnahalter, county Monaghan | Brindley, Anna | Article in Journal | | 1988 |
| Early ecclesiastical settlement names of county Galway | Mac Giolla Easpaig, Dónall | Article in Book | | 1996 |
| Early ecclesiastical site at Farburren, parish of Oughaval, Co. Mayo | Joyce, Brónach | Article in Journal | | 1999 |
| Early ecclesiastical sites in Ireland | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2020 |
| Early Ireland and Western Christendom : the Bible and the missions | Ní Chatháin, Próinséas | Article in Book | | 1987 |
| Early Irish church history : a bibliography | McLaughlin, Joseph | Article in Journal | | 1992 |
| Early Irish church organisation : the case of Drumlease and the Book of Armagh | Etchingham, Colmán | Article in Journal | | 2001 |
| Early Irish churches | Harbison, Peter | Article in Book | | 1982 |
| Early Irish communion vessels : church treasures of the golden age | Ryan, Michael | Monograph or Collective Volume | Country House in association with the National Museum of Ireland | 2000 |
| Early Irish ecclesiastical studies | Grannell, Fergal | Article in Book | | 1970 |
| Early Irish gospel books in the library of Trinity College Dublin | Bioletti, SusieMoss, Rachel | Monograph or Collective Volume | Trinity College Dublin | 2016 |
| Early Irish Gospel-books at St. Gallen | Meehan, Bernard | Article in Book | | 2025 |
| Early Irish hand-bells | Bourke, Cormac | Article in Journal | | 1981 |
| Early Irish Jesuit educators | Corcoran, Timothy Joseph, 1872-1943 | Article in Journal | | 1940 |
| Early Irish lyrics | | Monograph or Collective Volume | Clarendon Press | 1956 |
| Early Irish monastic arts and the architecture of the Benedictines in Ireland | Harbison, Peter | Article in Book | | 2005 |
| Early Irish monasticism | Curran, Michael, MSC | Article in Book | | 1981 |
| Early Irish monasticism : an understanding of its cultural roots | Thom, Catherine | Monograph or Collective Volume | T & T Clark | 2007 |
| Early Irish priests within their own localities | Swift, Catherine | Article in Book | | 2011 |
| Early Irish saints | Ó Ríordáin, John J. | Monograph or Collective Volume | Columba Press | 2001 |
| Early medieval bells and croziers from county Kerry | Murray, Griffen | Article in Journal | | 2012 |
| Early medieval ecclesiastical shoes | Nicholl, John | Article in Book | NA | 2025 |
| Early medieval Ireland, 400-1200 | Ó Cróinín, Dáibhí | Monograph or Collective Volume | Routledge | 2017 |
| Early medieval Ireland, 400-1200 | Ó Cróinín, Dáibhí | Monograph or Collective Volume | Longman | 1995 |
| Early medieval secular and ecclesiastical settlement in Munster | Monk, Michael A. | Article in Book | | 1998 |
| Early modern catholic self-fashioning : Tadhg Ó Cianáin, the Ulster earls and Santa Francesca Romana (1608) | Mac Craith, Mícheál | Article in Book | | 2010 |
| Early modern Ireland as a multiconfessional state | Gillespie, Raymond | Article in Book | | 2011 |
| Easkey Church and Graveyard | Bell, Kate DenisonMoore, Sam | Article in Journal | | 2017 |
| Eaten bread | McGillicuddy, Con | Monograph or Collective Volume | Choice Publishing | 2007 |
| Eccentric Ireland. Co. Longford | Sharkey, Olive | Article in Journal | | 2010 |
| Eccentric Ireland. Co. Meath | Sharkey, Olive | Article in Journal | | 2010 |
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| Ecclesia Hibernicana : die Synode von Inis Pádraig im Jahre 1148 | Immenktter, H. | Article in Journal | | 1985 |
| Ecclesiastical antiquities of Down, Connor and Dromore : consisting of a taxation of those dioceses compiled in the year MCCCVI | | Monograph or Collective Volume | | 1847 |
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| Ecclesiastical appointments in Ireland, Aug. 1643 - Dec. 1649 | Jennings, Brendan | Article in Journal | | 1959 |
| Ecclesiastical appointments in the province of Tuam, 1399-1477 | Edwards, Ruth Dudley | Article in Journal | | 1975 |
| Ecclesiastical architecture before 1169 | Stalley, Roger | Article in Book | | 2005 |
| Ecclesiastical censures : an aspect of their use in thirteenth-century Dublin | Murphy, Margaret | Article in Journal | | 1989 |
| Ecclesiastical foundations in the Ashford district | Byrne, Eileen | Article in Journal | | 1991 |
| Ecclesiastical history | Jordan, Kieran | Article in Book | | 2000 |
| Ecclesiastical justice and the enforcement of the reformation : the case of Archbishop Browne and the clergy of Dublin | Murray, James | Article in Book | | 1995 |
| Ecclesiastical law and the Reformation in Ireland | Osborough, W. N. (William Nial) | Article in Book | | 1992 |
| Ecclesiastical metropolitanism and the evolution of the catholic archdiocese of Toronto | Nicolson, Murray W. | Article in Journal | | 1982 |
| Ecclesiastical objects of the early medieval period from Clare | Ó Floinn, Raghnall | Article in Journal | | 1991 |
| Ecclesiastical Politics and the Counter-Reformation in Ireland, 1618-48 | Kearney, H. F. | Article in Journal | | 1960 |
| Ecclesiastical politics and the dismantling of the penal laws in Ireland, 1774-1782 | O'Flaherty, Eamon | Article in Journal | | 1988 |
| Ecclesiastical process and the parsonage of Stabannon in 1351 : a study of the medieval Irish church in action | Sayles, George Osborne | Article in Journal | | 1952 |
| Ecclesiastical records of England, Ireland, and Scotland to the reformation | Hart, Richard | Monograph or Collective Volume | | 1836 |
| Ecclesiastical relations between Ireland and England in the 7th and 8th centuries | Ryan, J. | Article in Journal | | 1939 |
| Ecclesiastical relations between Ireland and England in the seventh and eighth centuries : St. Berchert of Tullylease | Ryan, John | Article in Journal | | 1938 |
| Ecclesiastical remains in Co. Cavan | Davies, Oliver | Article in Journal | | 1940 |
| Ecclesiastical stained glass | Shields, Daniel | Article in Journal | | 1942 |
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| Ecclesiastical structures of the early Christian period in Corca Dhuibhne, Co Kerry | Ó Ciobháin, Breandán
| Article in Journal | | 2011 |
| Eclipse of the Irish nation in the eighteenth century | Cahill, Edward | Article in Journal | | 1943 |
| Economic problems of the church : why the Reformation failed in Ireland | Ellis, Steven G., 1950- | Article in Journal | | 1990 |
| Editorial from the 'Irish Ecclesiastical Gazette' 1st May 1878 | Irish Ecclesiastical Gazette | Article in Book | | 2000 |
| Edmund Butler, archbishop of Cashel (1524-51) and the Reformation | O'Donnell, Augustine | Article in Journal | | 1963 |
| Edmund Hogan : editor and scholar | Ó Canann, Tomás G. | Article in Book | | 2011 |
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| Educating a virgin : a proposed emendation of Conchubranus, Vita s. Monennae 1.3 | Lafferty, Maura K. | Article in Journal | | 2005 |
| Education in Mountshannon, 1742-1920 | O'Gorman, Tomas | Article in Book | | 1993 |
| Edward III’s bishops as his diplomats | Rosenthal, Joel | Article in Book | | 2016 |
| Edward J. Byrne 1872-1941 : the forgotten archbishop of Dublin | Morrissey, Thomas J. | Monograph or Collective Volume | Columba Press | 2010 |
| Edward Thomas O'Dwyer | Rushe, John | Article in Journal | | 1981 |
| Eighteenth century cathedral restoration | McCarthy, Michael (Michael Joseph), 1939-2010 | Article in Journal | | 1977 |
| Ein Baurechnung aus dem 18. Jahrhundert zum Seminar für die Schottenmission in St. Jakob in Regensburg | Gerl, Josef | Article in Book | | 2005 |
| El colegio de los irlandeses | Arnáiz, Mariá JoséSancho, José Luis, 1962- | Monograph or Collective Volume | Fundación Colegio del Rey | 1985 |
| Eleanor of Castile and the countess Margaret of Ulster : an essay on a possible kinship | Parsons, John Carmi | Article in Journal | | 1982 |
| Élisabeth I d'Angleterre et les Catholiques | Antheunis, Louis | Article in Journal | | 1954 |
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| Embracing women : making history in the Church of Ireland | Kennerley, Ginnie | Monograph or Collective Volume | Columba | 2008 |
| Emigration : official opinion on Irish emigration in the later 19th century | Keep, G. R. C. | Article in Journal | | 1954 |
| Empire, religion and revolution in early Virginia, 1607-1786 | Bell, James | Monograph or Collective Volume | | 2013 |
| Empowerment through community radio : NEAR FM as example | Byrne, JackGaliana, SallyMurray, Ciaran | Article in Book | | 2007 |
| Enclosed ecclesiastical sites and their relevance to settlement patterns of the first millenium AD | Swan, Leo, 1930-2001 | Article in Book | | 1983 |
| Enforcing reformation in Ireland and Scotland, 1550-1700 | | Monograph or Collective Volume | Ashgate | 2006 |
| Enforcing the English Reformation in Ireland : clerical resistance and political conflict in the Diocese of Dublin, 1534-1590 | Murray, James | Monograph or Collective Volume | Cambridge University Press | 2009 |
| Enforcing the Reformation in Ireland, 1660–1704 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2006 |
| Engineering in Radio Telefís Éireann (RTE) | O'Connell, Kevin | Article in Book | | 2006 |
| England : the famine and the church in England | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1947 |
| England, Ireland, and Rome, 1847-1848 | Kerr, Donal A. | Article in Book | | 1989 |
| English education in Ireland during the penal era, 1691-1800 | Cahill, Edward | Article in Journal | | 1939 |
| English law and the Irish church : the reign of Edward I | Watt, J. A. | Article in Book | | 1961 |
| English Monks and Irish Reform in the Eleventh and Twelfth centuries | Bethell, Denis L. T. | Article in Book | | 1971 |
| English, Welsh and Irish Scholars in the new universities of the continent in the later middle ages | Emlyn, Rhun | Article in Journal | | 2020 |
| Enniskillen long ago : an historic sketch of the parish of 'Inishkeene, in Lacu Ernensi,' now called Enniskillen, in the Diocese of Clogher | Bradshaw, William H. | Monograph or Collective Volume | George Herbert | 1878 |
| Enniskillen, parish and town | Dundas, William Harloe | Monograph or Collective Volume | William Tempest|Alfred Weaver | 1913 |
| Enough religion to make us hate : reflections on religion and politics | Griffin, Victor | Monograph or Collective Volume | Typemasters | 2009 |
| Entre Castigo y asimilación : los irlandeses y la Inquisición espanola (1580-1750) | O'Connor, Thomas | Article in Book | | 2014 |
| Eoghan Ó hAirt, 1562-1603 | Ó Claidhimh, Liam | Article in Journal | | 1961 |
| Eoin Baiste Mac Sleighne, easpag (1693-1712), agus patrún ar an léann Gaelach | Ó Conchúir, Breandán | Article in Book | | 1983 |
| Eoin MacNeill and a 'Celtic' church in early medieval Ireland? | Wycherley, Niamh | Article in Book | | 2022 |
| Episcopal appointments and ecclesiastical gravamina during Prince Edward's lordship of Ireland | O'Brien, Alphonsus | Thesis | | 1961 |
| Episcopal decision-making in Ireland | Keogh, Dermot | Article in Book | | 1992 |
| Episcopal edicts of the Diocese of Ossory in the eighteenth century, I : the edicts of Thomas Burke (1709-1776). | Ó Fearghail, Fearghus | Article in Journal | | 2006 |
| Episcopal hierarchy in Connacht and Tairdelbach Ua Conchobair | Etchingham, Colmán | Article in Journal | | 2000 |
| Episcopal succession of Ross in the fifteenth century | Kiely, M. A. | Article in Journal | | 1936 |
| Episcopal visitations of the dioceses of Cloyne and Ross, 1785-1828 [with index] | Derr, Eric A. | Article in Journal | | 2013 |
| Episcopi vagantes in church history | MacDonald, A. J. | Article in Journal | | 1940 |
| Episodes in the history of Easter cycles in Ireland | Harrison, Kenneth | Article in Book | | 1982 |
| Erenaghs and Termonlands : another early seventeenth-century account | Jefferies, Henry A. | Article in Journal | | 2002 |
| Erenaghs in pre-plantation Ulster : an early seventeenth-century account | Jefferies, Henry A. | Article in Journal | | 1999 |
| Erin's blood royal : the Gaelic noble dynasties of Ireland | Ellis, Peter Berresford, 1943- | Monograph or Collective Volume | Constable | 1999 |
| Érlam : the patron-saint of an Irish church | Charles-Edwards, T. M. (Thomas Mowbray) | Article in Book | | 2002 |
| Ethnic tensions, episcopal leadership and the emergence of the twentieth century American Catholic church : the Cleveland experience | Leonard, Henry B. | Article in Journal | | 1985 |
| Eucharistic vessels, architecture and liturgical celebration in early medieval Ireland | Ryan, Michael | Article in Book | | 2005 |
| Evangelical cross-currents in the Church of Ireland, 1820-1833 | Stunt, Timothy C. F. | Article in Book | | 1989 |
| Evangelical Religion and Victorian Women : The Belfast Female Mission, 1859-1903 | Dickson, J. N. Ian | Article in Journal | | 2004 |
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| Evangeliorum Quattuor Codex Cenannensis. Vol. 3 | | Monograph or Collective Volume | Urs Graf Verlag | 1951 |
| Evensong : The story of a Church of Ireland country parish | Power, Bill | Monograph or Collective Volume | Bill Power | 2004 |
| Evictions on the TV screen: the visual and narrative legacies of the Great Famine in 'The Hanging Gale' | Corporaal, Marguérite
| Article in Book | | 2018 |
| Evidence for a tympanum at Aghadoe, Co. Kerry | Rynne, Etienne | Article in Journal | | 1987 |
| Evidence for an Early Medieval Ecclesiastical Site, Kilmeane, Mote Demesne, Co Roscommon | McGuinness, David | Article in Book | | 2023 |
| Evidence for contacts between the churches of the Irish and English from the Synod of Whitby to the Viking age | Hughes, Kathleen Winifred | Article in Book | | 1971 |
| Evidence fot the location of the medieval parish church of Rathcormac: excavations at Dispensary Lane, 2004 | Moloney, Colm | Article in Journal | | 2010 |
| Excavating an archive | Baker, Christine | Article in Journal | | 2012 |
| Excavation at St Mary's cathedral, Tuam, Co. Galway | Clyne, Miriam | Article in Journal | | 1987 |
| Excavation of a multi-period site at Stalleen, Co. Meath, by Mandy Stephens 2022 : Research in the Bru na Boinne World Heritage Site | NA | Monograph or Collective Volume | Chapel Press | 2022 |
| Excavation of a seventeenth-century bastioned fort at High Street, Castlecomer, co. Kilkenny | Ó Drisceoil, Cóilín | Article in Journal | | 2018 |
| Excavation of an Early Christian cemetery and settlement at Reask, County Kerry | Fanning, T. | Article in Journal | | 1981 |
| Excavation of Kilteel church, Co. Kildare | Manning, Conleth | Article in Journal | | 1982 |
| Excavations at an early ecclesiastical enclosure at Kilkieran, county Kilkenny | Hurley, M. F. | Article in Journal | | 1989 |
| Excavations at Church Road and the early monastic foundation at Lusk, Co. Dublin | O'Connell, Aidan | Article in Book | | 2009 |
| Excavations at Cormac's chapel, Cashel, 1992 and 1993 : a preliminary statement | Hodkinson, Brian | Article in Journal | | 1994 |
| Excavations at Duiske Abbey, Graiguenamanagh, co. Kilkenny | Bradley, John, 1954-2014Manning, Conleth | Article in Journal | | 1981 |
| Excavations at Kells priory, County Kilkenny | Fanning, Thomas | Article in Journal | | 1973 |
| Excavations at Mellifont abbey, Co. Louth | De Paor, Liam | Article in Journal | | 1969 |
| Excavations at Moor Abbey, Co. Tipperary | Lynch, Ann | Article in Journal | | 2018 |
| Excavations at Moyne graveyard, Shrule, Co. Mayo | Manning, C. | Article in Journal | | 1987 |
| Excavations in an ecclesiastical enclosure at Doras, Co, Tyrone | McDowell, J. A. | Article in Journal | | 1987 |
| Exchange and trade in early medieval Ireland | Doherty, Charles | Article in Journal | | 1981 |
| Explaining parochial and diocesan boundaries | Cullen, Seamus | Article in Book | | 1999 |
| Explanations in Tomfinlough (Fenloe) church and graveyard | Carey, Olive | Article in Journal | | 2002 |
| Exploring the medieval and early modern settlement of Noughaval in the Burren | Campbell, Eve | Article in Journal | | 2013 |
| Extents of Irish monastic possessions, 1540-1541, from manuscripts in the Public Record Office, London | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1943 |
| External influences and relations, c.1220 to c.1500 | Clarke, Howard B. | Article in Book | | 2009 |
| Extra official state papers addressed to the rt. hon. Lord Rawdon | | Monograph or Collective Volume | | 1789 |
| Extracts from some issues of 'Archivium Hibernicum' and 'Collectanea Hibernica' concerning Killala diocesan affairs up to 1800 | MacHale, Edward | Article in Journal | | 1989 |
| Extracts from Virginia church records | O'Brien, Michael J. | Article in Journal | | 1919 |
| Extracts relating to Co. Louth from the Calendar of the register of Primate Nicholas Fleming | Gwynn, Aubrey | Article in Journal | | 1949 |
| Fabrics of faith : the material worlds of Catholic Ireland and Protestant Ireland, 1500-1800 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2011 |
| Faith and fatherland : the 'Irish News', the Catholic hierarchy and the management of dissidents | Buckley, Pat | Monograph or Collective Volume | Belfast Historical and Educational Society | 1991 |
| Faith and patronage : the political career of Flaithrí Ó Maolchonaire, c.1560-1629 | Hazard, Benjamin | Monograph or Collective Volume | Irish Academic Press | 2009 |
| Faith in place : Roscrea and Kyle, a Church of Ireland parish history, by Adrian Hewson, including 'The Book of Dimma' by George O. Simms | Hewson, AdrianSimms, George Otto, archbishop of Armagh. | Monograph or Collective Volume | J. F. Walsh | 1990 |
| Faith of our fathers : the Gaelic aristocracy in Co. Offaly and the counter-reformation | Lyttleton, James | Article in Book | | 2009 |
| Faith, Famine and Fenianism : Paul Cullen and the Irish emigrant world | Moran, Gerard | Article in Book | | 2011 |
| Fall from grace | Broderick, Joe | Monograph or Collective Volume | Brandon | 1992 |
| Family stories and secret keepers: who is Máire Bastabal? | Byrne, AnneByrne, Colm | Article in Book | | 2018 |
| Famous Kinsale Australians | Hickey, Nora | Article in Journal | | 1988 |
| Fanny Jennings, duchess of Tyrconnell | Ó Broin, León, 1902-1990 | Article in Journal | | 1962 |
| Fantastic changelings : liminality and narrative technique in Irish changeling tales | Robitaillié, Audrey | Article in Journal | | 2023 |
| Fantastic Mass Rocks and where to find them | McCormick, Cerys | Article in Journal | | 2019 |
| Fantastic technology in early Irish literature | Sayers, William | Article in Journal | | 2014 |
| Far and away | Davis, Bill | Article in Journal | | 1995 |
| Fassaroe and associated crosses | Ó Héailidhe, P. | Article in Journal | | 1958 |
| Fasti ecclesiae Hibernicae ... 5 vols. and suppl. | Cotton, Henry | Monograph or Collective Volume | | 1847 |
| Fasti ecclesiae Hibernicae; the succession of the prelates and members of the cathedral bodies in Ireland. 5 vols (and supplement) | | Monograph or Collective Volume | | 1845 |
| Fasti of Saint John's Priory, Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| Fasti of seceder, ministers ordained or installed in Ireland 1746-1948 | Bailie, W. D.Kirkpatrick, L. S. | Monograph or Collective Volume | Presbyterian Historical Society of Ireland | 2005 |
| Fasti of St. John's priory, Ardee | Mac Íomhair, Diarmuid | Article in Journal | | 1973 |
| Fasti of the General Assembly of the Presbyterian Church in Ireland. Pt. 1 : 1840-1870; pt. 2 : 1871-1890; pt. 3 : 1891-1910 | Barkley, John M. | Monograph or Collective Volume | Presbyterian Hist. Soc. | 1987 |
| Fasti of the Irish Presbyterian church | McConnell, JamesMcConnell, S.Paul, F. J.Stewart, David | Monograph or Collective Volume | Bell & Logan | 1941 |
| Fasti of the Irish Presbyterian Church revised by S.G. McConnell | McConnell, James | Article in Journal | | 1937 |
| Fasti of the Irish Presbyterian Church, revised by S.G. McConnell | McConnell, James | Article in Journal | | 1936 |
| Fasti of the reformed Presbyterian Church of Ireland, part 1 | Loughridge, Adam | Monograph or Collective Volume | Presbyterian Hist. Soc. | 1970 |
| Fasting and feasting on Irish church sites : the archaeological and historical evidence | Harney, Lorcan | Article in Journal | | 2016 |
| Fasting for the public : Irish and Indian sources of Marion Wallace Dunlop's 1909 hunger strike | Lennon, Joseph | Article in Book | | 2007 |
| Fasting, flesh and the body in the St Brendan dossier | Wooding, Jonathan M. | Article in Book | | 2003 |
| Father and son. The stained glass windows of Joshua and Harry Clarke, St Flannan's Church, Killaloe, Co. Clare | MacGabhann, Donncha | Article in Journal | | 2009 |
| Father Boyce, Laly Morgan and Sir Walter Scott : a study in intertextuality and Catholic polemics | Maume, Patrick | Article in Book | | 2005 |
| Father Gentili, 1801-48 | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1948 |
| Father Hand (1807-46) | Purcell, W. E. | Article in Journal | | 1942 |
| Father John Hennessy, P.P. : 'Protestant priest' | Hyland, Cecil | Article in Journal | | 1988 |
| Father Kenyon and Young Ireland | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1949 |
| Father Luke Wadding and the Irish nation | Corish, Patrick J. | Article in Journal | | 1957 |
| Father Matts round towers | Mulcahy, J. | Article in Journal | | 1989 |
| Father O Finachty's miracles | Faulkner, Anselm | Article in Journal | | 1965 |
| Father Paul Walsh, D.Litt | Brady, John, d.1963 | Article in Journal | | 1941 |
| Father Theobald Mathew | Mathew, David | Article in Journal | | 1957 |
| Father Theobald Mathew | Lucey, Cornelius | Article in Journal | | 1956 |
| Father Tom : an authorised portrait of Cardinal Tomás Ó Fiaich | Fitzgerald, B. | Monograph or Collective Volume | Fount | 1990 |
| Father Yorke on Father O'Growney | Yorke, Peter | Article in Journal | | 1964 |
| Fearghal Ó Gadhra and the Four Masters | Boyle, Alexander | Article in Journal | | 1963 |
| Feartlaoithe (Elegies) Proinsias Ó Conluain, 1919-2013 | Goan, Cathal | Article in Journal | | 2013 |
| Feast of our Lady's conception in the medieval Irish church | Ó Briain, Felim | Article in Journal | | 1948 |
| Feasting and subsistence in early medieval Ireland | Sassin, Anne | Article in Book | | 2008 |
| Feasts of the Blessed Virgin in the ancient Irish church | Hennig, John | Article in Journal | | 1954 |
| Feeding communities : monasteries and urban development in early medieval Ireland | Soderberg, John | Article in Book | | 2001 |
| Female Monasticism in Medieval Ireland: An Archaeology | Collins, Tracy | Monograph or Collective Volume | Cork University Press | 2021 |
| Female trouble : ambivalences and anxiety at the Nuns' church | Overbey, Karen Eileen | Article in Book | | 2008 |
| Female virtue and chastity in pre-famine Ireland : Kenneth Hugh Connell revisited | Brozyna, Andrea Ebel | Article in Journal | | 1996 |
| Fenagh: The Church of Ireland story | Leyden, Padraig | Monograph or Collective Volume | Fenagh Church Restoration Committee | 1989 |
| Fenianism revisited : pastime or revolutionary movement? (comment) | Newsinger, John | Article in Journal | | 1992 |
| Fermanagh : its native chiefs and clans, annals, relics shrines, learned ecclesiastics and scholars, fourteen martyrs to Irish nationhood | Maguire, Thomas | Monograph or Collective Volume | S. D. Montgomery | 1954 |
| Ferns | Grannell, Fergal | Article in Journal | | 1967 |
| Ferns | Furlong, Nicholas | Article in Book | | 1999 |
| Ferns marriage licences | Stanley-Torney, Henry C. | Article in Journal | | 1921 |
| Field trips with Dr F.X. McCorry | McCorry, F.X. (Francis Xavier) | Article in Journal | | 2015 |
| Fifteen hundredth anniversary, St. Saviour's Church, Connor | Carmody, W. P., Rev.,Hogmeester, A. S., Rev. | Monograph or Collective Volume | [St Saviour's Church, Connor] | 1980 |
| Fifteenth-century Irish provincial legislation and pastoral care | Burrows, M. A. J. | Article in Book | | 1989 |
| Fifteenth-century vestments in Waterford | MacLeod, Catriona | Article in Journal | | 1952 |
| Fifty years of UTV | Anderson, Don, 1942- | Monograph or Collective Volume | Gill & Macmillan | 2009 |
| Film and broadcast media | Savage, Robert | Article in Book | | 2014 |
| Finding the city of God in the lives of St Kevin : Glendalough and the history of the Irish celestial civitas | Maddox, Melanie C. | Article in Book | | 2011 |
| Finnian or Winniau? | Ó Riain, Pádraig | Article in Book | | 1984 |
| Fitzpatrick's Boston, 1846-1866 : John Bernard Fitzpatrick, third bishop of Boston | O'Connor, Thomas H. | Monograph or Collective Volume | Northeastern UP | 1984 |
| FitzRalph's antimendicant "Proposicio" (1350) and the politics of the papal court at Avignon | Coleman, Janet | Article in Journal | | 1984 |
| Fixing the eschatological scales : judgement of the soul in late medieval and early modern Irish tradition | Ryan, Salvador | Article in Journal | Boydell | 2009 |
| Florence Conry, archbishop of Tuam | Jennings, Brendan | Article in Journal | | 1949 |
| Florence Conry, Archbishop of Tuam, 1608–1629 | Neary, J. | Article in Journal | | 1911 |
| Florentia monasteriorum | O'Brien, Caimin | Article in Journal | | 2009 |
| Flowers from ancient gardens : the lemma 'amicitia' in the Manipulus florum of Thomas of Ireland | McEvoy, James | Article in Book | | 2009 |
| Folk memories of North Clare | Keating, Tom | Article in Journal | | 2024 |
| Footprints around the world : Ralph W. Tyler in Ireland | Carter, G. L. | Article in Journal | | 1988 |
| Footprints of St. Finbarr | Ó Foghludha, Risteárd | Article in Journal | | 1950 |
| For 'decency and order' : the Church of Ireland's acquisition and use of silver in the Stuart period | Cunningham, Jessica | Article in Book | Four Courts Press | 2025 |
| Fore and its ancient buildings | Sharkey, Olive | Monograph or Collective Volume | Magpie Publications | 2004 |
| Fore, Co. Westmeath : national monuments in the charge of the Commissioners of Public Works : St Fechin's church, the town gateways, and the Benedictine priory | Leask, H. G. (Harold G.) | Monograph or Collective Volume | Stationery Office | 1938 |
| Foreign and fantastic field sports : cricket in county Tipperary | Bracken, Patrick | Monograph or Collective Volume | Liskeveen Books | 2004 |
| Forest and fields : a study of "monastic towns" in seventh and eighth century Ireland | Swift, Catherine | Article in Journal | | 1998 |
| Forging a Northern Irish identity : music broadcasting on BBC Northern Ireland, 1924-39 | Stanley, Ruth | Article in Book | | 2014 |
| Forgotten stones : ancient church sites of the Burren and environs | Swinfen, Averil | Monograph or Collective Volume | Lilliput Press | 1992 |
| Formed by word and example : the training of novices in fourteenth-century Dublin | Ó Clabaigh, Colmán | Article in Book | | 2018 |
| Forts and fields : a study of 'monastic towns' in seventh and eighth century Ireland | Swift, Catherine | Article in Journal | | 1998 |
| Forty years behind the lens of RTE | Graham, Godfrey | Monograph or Collective Volume | Ashfield Press | 2005 |
| Forty years of Irish broadcasting | Gorham, Maurice | Monograph or Collective Volume | Talbot Press | 1967 |
| Forty years on : Diocese of Down and Dromore, Diocese of Connor 1945-1985 | Macourt, William A. | Monograph or Collective Volume | Universal Publishing | 1985 |
| Forward march : a short history of the Church of Ireland in Ballyholme | Mercer, John J. G. | Monograph or Collective Volume | [The author] | c. 1960 |
| Foster Archer's tour of Ireland in 1801 | Dowling, P. J. | Article in Journal | | 1943 |
| Fourtowns Presbyterian Church | Wylie, Griffith | Article in Journal | | 1988 |
| Fr Batt O'Connor and the Killorglin Tithe War 1835 | O'Reilly, Hugh | Article in Journal | | 2011 |
| Fr Edmund Hogan's 'Onomasticon Goedelicum', ninety years on : reviewers and users | Murray, Kevin | Article in Journal | | 1998 |
| Fr Ferris's parish histories : Ballymacelligott, Ballyseedy, O'Brennan and Nohaval | Ferris, William | Monograph or Collective Volume | Red Hen Publishing | 2018 |
| Fr Francis Leynagh's letter (1725) | Ó Háinle, Cathal G. | Article in Journal | | 2005 |
| Fr Martin Doyle - the man and his times | Joyce, John | Article in Journal | | 2013 |
| Fr Robert O'Keeffe, parish priest, and the Callan controversy 1869-81 | Hogan, Patrick | Article in Book | | 1990 |
| Fr. John Casey, antiquarian | MacMahon, Bryan | Article in Book | | 2012 |
| Fr. John Flatley (1846-1929) - Turbulent priest | McGinley, Michael | Article in Journal | | 2012 |
| Fr. Owen (Eugene) McCarthy, 1822-1857 | MacMahon, Bryan | Article in Book | | 2012 |
| Fragmenta Rapotensiana : contributions towards a diocesan dictionary | Ó Canann, Tomás | Article in Journal | | 1996 |
| Fragments of a twelfth-century doorway at the Church of St Multose, Kinsale? | Ní Ghrádaigh, Jenifer | Article in Journal | | 2003 |
| Francis MacManus, 1909-1966 | Sheridan, John | Article in Journal | | 1966 |
| Francis Makemie (c.1657-1708) : father of American Presbyterianism | Kirkpatrick, Laurence S. | Article in Book | | 2015 |
| Francis Turnly, 1766-1845 : a prophet of the United Nations | Kennedy, David | Article in Journal | | 1968 |
| Franciscan architecture in pre-reformation Ireland | Mooney, Canice | Article in Journal | | 1955 |
| Franciscan chalices, 1600-50 | Krasnodebska-D'Aughton, Malgorzata | Article in Book | | 2009 |
| Franciscan Donegal : a souvenir of the dedication of the Franciscan church, Ros Nuala, to the Immaculate Heart of Mary, on Sunday, 29th June, 1952 | NA | Monograph or Collective Volume | Franciscan Friary, Ros Nuala | 1952 |
| Franciscan faith : sacred art in Ireland 1600 - 1750 | | Monograph or Collective Volume | Wordwell | 2011 |
| Franciscan superiors in Donegal | Conlan, Patrick | Article in Journal | | 2011 |
| Franco-Irish ecclesiastical networks and the career of François Anglade in the Royal Catholic College oif St Patrick at Maynooth, 1757-1834 | Ferté, Patrick
| Article in Journal | | 2023 |
| Frank O'Connor and the literary development of Radio Éireann | Morgan-Zayachek, Eileen | Article in Journal | | 2009 |
| Franz S. Haselbeck's Ireland : selected photographs | | Monograph or Collective Volume | Coillins | 2013 |
| Frederick Lucas, The Tablet and Ireland : a Victorian forerunner of Liberation Theology | Gilley, Sheridan | Article in Book | | 1993 |
| Free Ireland : towards a lasting peace | Adams, Gerry | Monograph or Collective Volume | Brandon Press | 1995 |
| French television and the 'journal televise' in the Fourth and Fifth Republics (with special reference to coverage of Northern Ireland) | Loughlin, Joanna Mary | Thesis | | |
| Fresh light on Archbishop Cullen and the Tenant League | Whyte, J. H. | Article in Journal | | 1963 |
| Freshford doorway | Lanigan, Katharine | Article in Journal | | 1969 |
| Frigulus : Hiberno-Latin author or pseudo-Irish phantom : comments on the edition of the Liber questionum in euangeliis (CCSL 108F) | Gorman, M. M. | Article in Journal | | 2005 |
| From "victims" of the Melk reform to apostles of the Counter-Reformation : the Irish regular clergy in the Habsburg dominions | Walsh, Katherine | Article in Book | | 1989 |
| From 'city of God' to a blueprint for the future : Glendalough in the nineteenth century | Ní Cheallaigh, Máirín | Article in Book | | 2011 |
| From a forum to a force : the development of CRAOL, 1998-2007 | McGann, Nessa | Article in Book | | 2007 |
| From caput to caput: the rise and fall of medieval Ferns, c.600–c.1600 | Potterton, Michael | Article in Book | | 2023 |
| From college courses to lasting links : a history of Dublin University Golfing Society, 1909-2009 | Caldwell, GavinHalliday, Michael, | Monograph or Collective Volume | Dublin University Golfing Society | [2009?] |
| From David to Labraid : sacral kingship and the emergence of monotheism in Israel and Ireland | Carey, John | Article in Book | | 2008 |
| From Dún Síon to Croke Park : the autobiography | Ó Muircheartaigh, Micheál | Monograph or Collective Volume | Penguin | 2004 |
| From Dundalk to Dublin: Dorothy Macardle's narrative journey on Radio Éireann | Smith, Nadia Clare | Article in Journal | | 2010 |
| From early to late: uncovering medieval Ferns....recent excavations... | McLoughlin, Catherine | Article in Journal | | 2020 |
| From Hathrantone to Star of the Sea - Catholic places of worship in Portstewart | Wilson,Frances A.
| Article in Journal | | 2016 |
| From Hiberno-Norse to Anglo-Norman, c.1030-1300 | Kinsella, Stuart | Article in Book | | 2000 |
| From Lynally to Durrow ... by boat | Moran, Bernie | Article in Journal | | 2011 |
| From megalith to megastore : broadcasting and Irish culture | Gibbons, Luke | Article in Book | | 1988 |
| From monastic to secular : an anatomy of two early modern estates in south-east Ulster and north Louth | Abraham, A. S. K. | Article in Journal | | 2000 |
| From pilot to policy : the development of a community radio movement, 1989-1997 | Kissane, Ciarán | Article in Book | | 2007 |
| From the ashes | Bowe, Nicola GordonHalpin, Andrew | Article in Journal | | 2014 |
| From the desert fathers to Columban monasticism : early medieval notions of work, sustenance, and subsistence in Ireland and Merovingian Gaul | Adams, Claire | Article in Journal | | 2018 |
| From the union to the famine | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Book | | 1957 |
| From townland to metropolis, patterns of migration in the Hastings and McKitterick families, 1860-1910 | Richmond, Paul | Article in Journal | | 2006 |
| From Tuam to Ballyspellan | Ó Fearghail, Feargus | Article in Journal | | 1987 |
| From Venice to Monasterevin : the altar rails in the Church of Sts. Peter and Paul | Whelan, Beatrice | Article in Journal | | 2002 |
| Frontiers in the Irish church - regional and cultural | Simms, Katharine | Article in Book | | 1995 |
| Frühes Mönchtum im Frankenreich. Kultur und Gesellschaft in Gallien, den Rheinlanden und Bayern am Beispiel der monastischen Entwicklung | Prinz, Friedrich | Monograph or Collective Volume | Oldenbourg | 1965 |
| Fundraising in an Irish provincial town: a story from the 19th century | Feheney, J.M. | Article in Journal | | 2014 |
| Funeral customs of the past | Brady, John, d.1963 | Article in Journal | | 1952 |
| Funerary monuments and memorials in the Church of Ireland (Anglican) cathedral of St Patrick, Armagh | Curl, James Stevens | Monograph or Collective Volume | Historical Publications | 2013 |
| Further evidence for the influence of the Hibernensis in southern Italy : an early eleventh-century canonistic florilegium at Montecassino | Reynolds, Roger E. | Article in Journal | | 2005 |
| Further light on early Irish navigation | Marcus, G. T. | Article in Journal | | 1954 |
| Further notes on the history and antiquities of the parish of Clane | Sherlock, Canon | Article in Journal | | 1905 |
| Gaelic friars and Gothic design | Stalley, Roger | Article in Book | | 1990 |
| Gaelic monasticism and the Irish Cistercians c.1228 | O'Dwyer, B. W. | Article in Journal | | 1967 |
| Gallarus Oratory. This contribution... records folk beliefs attached to the well-known early medieval oratory | Dowd, Marion | Article in Journal | | 2021 |
| Galway Catholic Parish Churches, 1846 | Mac Lochlainn, Alf, 1926- | Article in Journal | | 2003 |
| Galway diocesan archives | Power, J. | Article in Journal | | 1993 |
| Galway goldsmiths, their marks and ware | Mulveen, Jack | Article in Journal | | 1994 |
| Galway's heritage in stone, no. 9. Part 1. The 2023 archaeological and conservation works at St Nicholas' Collegiate Church Galway [by Jim Higgins and Frank Coyne] ; Part 2 Archaeological and conservation works at Menlo Castle Galway [by Jim Higgins and Martin Fitzpatrick] | Higgins, Jim ; Coyne, Frank ; Fitzpatrick, Martin | Monograph or Collective Volume | Crow's Rock Press | 2023 |
| Garrycloyne church - an archaeological survey | Higgins, Michael | Article in Journal | | 2002 |
| Gems of Architecture: St Catherine's Church, Fenagh, Co. Leitrim | Marshall, Julie | Article in Journal | | 2017 |
| General synod : retrospect and prospect | Deane, J. L. B. | Article in Journal | | 1970 |
| Geoffrey Keating's Eochair Sgiath an Aifrinn and the Catholic Reformation in Ireland | Cunningham, Bernadette | Article in Book | | 1989 |
| Geophysical imaging in the Leamonaghan togher | Gibson, Paul J. | Article in Journal | | 2012 |
| George Brown, archbishop of Dublin, 1536-1554 | Bradshaw, Brendan I., Rev. | Thesis | | 1966 |
| George Browne, first protestant archbishop of Dublin | Flood, William Henry Grattan | Article in Journal | | 1915 |
| George Browne, first Reformation archbishop of Dublin, 1536-54 | Bradshaw, Brendan | Article in Journal | | 1970 |
| George Edmund Street and the restoration of the cathedral, 1868-78 | Stalley, Roger | Article in Book | | 2000 |
| George Edmund Street's account of the architecture of Christ Church Cathedral 1882 | Street, George Edmund | Article in Book | | 2000 |
| George Edmund Street's first report on Christ Church Cathedral 1868 | Street, George Edmund | Article in Book | | 2000 |
| George Edmund Street's second report on Christ Church Cathedral 1871 | Street, George Edmund | Article in Book | | 2000 |
| George Joseph Plunkett Browne | Coen, Martin | Article in Journal | | 1978 |
| Gerald Fenell, doctor and politican (?-1665) | Logan, P. L. | Article in Journal | | 1960 |
| Germanus and Britain | Hanson, R. P. C. | Article in Journal | | 1985 |
| Germany recalling : a personal biography of William Joyce, 'Lord Haw-Haw' | Kenny, Mary | Monograph or Collective Volume | New Island | 2003 |
| Gerry : a memoir | Anderson, Don, 1942-Kelly, Gerry, 1948- | Monograph or Collective Volume | Gill & Macmillan | 2008 |
| Gervase of Tilbury’s Irish Bishops | Breeze, Andrew | Article in Journal | | 2004 |
| Geschichte der Irischen Kirche von ihren Anfängen bis zum 12. Jahrhundert | Delius, Walter | Monograph or Collective Volume | Reinhardt | 1954 |
| Getting tough with RTE | Fisher, Desmond | Article in Book | | 2005 |
| Gideon Ouseley : rural revivalist, 1791-1839 | Hempton, David | Article in Book | | 1989 |
| Gilla Mic Liag Mac Ruaidhri, primate of Armagh, 1137-1174 | Gogarty, Thomas | Article in Journal | | 1918 |
| Gille of Limerick (c.1072-1145), an Irish canonist | Fleming, John | Article in Book | | 2009 |
| Gillebert of Limerick : the Prelate's present to the Primate of England | Lucey, John | Article in Journal | | 2006 |
| Gillebert of Limerick: Theorist or Shallow Theologian? | Lucey, John | Article in Journal | | 2011 |
| Giudi revisited | Rutherford, Anthony | Article in Journal | | 1976 |
| Giuseppe Mazzini and Irish nationalism, 1845-70 | Barr, Colin | Article in Journal | | 2008 |
| Gladstone's attitude to Catholicism | Hegarty, W. J. | Article in Journal | | 1956 |
| Glass in the Glens | Rogers, Frank | Article in Journal | | 2001 |
| Glass in the Glens : a study of stained glass windows in churches in the Glens of Antrim | Rogers, Frank | Monograph or Collective Volume | Impact Printing | 2004 |
| Gleanings from Glenavy Parish | Totten, Jean | Monograph or Collective Volume | [Glenavy Parish] | 1980? |
| Gleanings from the Shournagh | Sheehan, Tim | Article in Journal | | 2013 |
| Glencolumbkille : a history 3000 BC - 1885AD | Manning, Aidan | Monograph or Collective Volume | Donegal Democrat [printer] | 1985 |
| Glendalough | Corlett, Christiaan | Monograph or Collective Volume | Coles Lane | 2017 |
| Glendalough : city of God | | Monograph or Collective Volume | Four Courts | 2011 |
| Glendalough : liturgy and music | Casey, Sara G. | Article in Book | | 2011 |
| Glendalough : the Royal Society of Antiquaries of Ireland's contribution to its preservation, examination and illustration | Ireland, Aideen | Article in Book | | 2011 |
| Glendalough and its churches | Manning, Conleth | Article in Journal | Archaeology Ireland | 2016 |
| Glengariff : Sacred Heart Church 1902-2002 : a centenary celebration | Anonymous | Monograph or Collective Volume | Committee members, etc. | 2002 |
| Gli Irlandesi in Italia : Dungal e la controversia iconoclastica | Leonardi, Claudio | Article in Book | | 1982 |
| Glimpses of catholic Ireland in the eighteenth century : restoration of the daughters of St Brigid by the most rev. Dr Delaney | Gibbons, Margaret | Monograph or Collective Volume | NA | 1932 |
| Glimpses of Tuam through the centuries : Proceedings of a seminar, 28th September 2013 | | Monograph or Collective Volume | Old Tuam Society | 2014 |
| Gnéithe den naomhsheanchas in Éirinn sa tréimhse réamh-Lochlannach | Herbert, Máire | Article in Book | | 2000 |
| God and the gun : the church and Irish terrorism | Dillon, Martin | Monograph or Collective Volume | Orion | 1997 |
| God's Irishmen : theological debates in Cromwellian Ireland | Gribben, Crawford | Monograph or Collective Volume | Oxford University Press | 2007 |
| God's river in spate : the story of the religious awakening in Ulster in 1859 | Carson, John T. | Monograph or Collective Volume | Presbyterian Church of Ireland | 1958 |
| Godfrey Day, missionary, pastor and primate : a memoir | Hartford, R. R. | Monograph or Collective Volume | Talbot Press | 1940 |
| Going global for God : A portrait of Ballyheigue's missionary movement | Ó hAllmhuráin, Micheál | Monograph or Collective Volume | Ballyheigue History and Heritage Group | 2016 |
| Going on air : West Limerick 102 | Ryan, Ciarán | Article in Book | | 2007 |
| Gold discs | Nolan, Ronan | Article in Journal | | 1996 |
| Gordonville, Dundrum | Van Turnhout, Michael | Article in Journal | | 2018 |
| Gorestown Catholic Church | Dillon, Charles | Article in Journal | | 2001 |
| Gothic revival architecture in Ireland. 2 vols. | Richardson, D. S. | Monograph or Collective Volume | | 1983 |
| Government and broadcasting : maintaining a balance | Feeney, Peter | Article in Book | | 2004 |
| Government attitudes to religious nonconformity in Ireland 1660-1719 | McGuire, James | Article in Book | | 1987 |
| Government, public broadcasting and the urge to censor | Corcoran, Farrel | Article in Book | | 2005 |
| Great Connell Abbey, Co. Kildare | Fitzgerald, Walter, Lord | Article in Journal | | 1899 |
| Great men we have given to history : Ted O'Riordan looks at the life of Dr Mannix, archbishop of Melbourne | O'Riordan, Ted | Article in Journal | | 1987 |
| Great transformations : "re-casting" Derry's Diamond War Memorial for the demands of a "shared" future | Hocking, Bryanna | Article in Journal | | 2014 |
| Gregory VII and the Irish church | Gwynn, Aubrey | Article in Journal | | 1948 |
| Gregory's angels : a history of the abbies, priories, parishes and schools of the monks and nuns following the rule of Saint Benedict in Great Britain, Ireland and their overseas foundations : to commemorate the arrival of Saint Augustine in Kent 597 AD | Beattie, Gordon J. | Monograph or Collective Volume | Gracewing | 1997 |
| Grey Abbey Parish : Saint Saviour's Parish Church, Grey Abbey, County Down | Ridgway, G. P. | Monograph or Collective Volume | [Grey Abbey Parish] | 1969 |
| Grey Abbey, County Down | Anonymous | Monograph or Collective Volume | | 1964 |
| Greystones 1864-1964 | French, Samuel | Monograph or Collective Volume | [The author] | 1964 |
| Grim bastilles of despair : the Poor Law Union workhouses in Ireland | Mahoney, Paschal | Monograph or Collective Volume | Quinnipiac University | 2016 |
| Groomsport parish church, 1842-1992 : a shorth history of the parish and its people in commemorationof 150 years of witness to the work of the Lord Jesus Christ in a small Ulster community | Mowat, Raymond B. | Monograph or Collective Volume | [Groomsport parish] | 1992 |
| Grundsatzkonflikt in der Konsens-Gesellschaft : Conrad Russells Analyse der englischen Krise des 17. Jahrhunderts | Wende, Peter | Article in Journal | | 1993 |
| Guesting and feasting in Gaelic Ireland | Simms, Katharine | Article in Journal | | 1979 |
| Guide to church records : an Irish genealogical source | Public Record Office of Northern Ireland | Monograph or Collective Volume | Ulster Historical Foundation on behalf of (the) Public Record Office of Northern Ireland | 1994 |
| Guide to the Díseart : treoraí agus eolaí | | Monograph or Collective Volume | An Sagart | 2010 |
| Gymnastics and childhood in early-nineteenth-century Dublin | Heffernan, Conor | Article in Journal | | 2025 |
| Habitual masonry styles and the local organisation of Church building in early medieval Ireland | Ó Carragáin, Tomás | Article in Journal | | 2005 |
| Hakenkreuz und Kleeblatt. Irland, die Aliierten und das Dritte Reich 1933-1945. 2 vols. | Sturm, Hubert | Monograph or Collective Volume | | 1984 |
| Halfway between Dublin and Cork : a history of the parish of Urlingford and Graine | Hayes, Margaret | Monograph or Collective Volume | The author | 2015 |
| Hallowed by saints, coveted by kings : Christianisation and land tenure in Rathdown c. 400-900 | Boazman, Gill | Article in Book | | 2016 |
| Hand-bells of the Celtic church in Scotland | Purser, John W. | Article in Journal | | 2006 |
| Handbook of the cathedral church of St. Fin Barre, Cork | Caulfield, Richard | Monograph or Collective Volume | Purcell & Co. | 1881 |
| Handlist of Irish diocesan histories | Anonymous | Article in Journal | | 1957 |
| Harnessing the tides : the early medieval tide mills at Nendrum Monastery, Strangford Lough | Crothers, NormanMcErlean, Thomas, | Monograph or Collective Volume | The Stationery Office : Environment and Heritage Service | 2007 |
| Harry Clarke's windows for Diseart Chapel, Presentation Convent, Dingle | Kennedy, Róisín | Article in Journal | | 2019 |
| Hartwell Castle and bawn : a monastic grange | Conroy, Gearóid | Article in Book | | 2007 |
| Hastings farmhouse conservation project | Carey, Olive | Article in Journal | | 2013 |
| Haunting the graveyard : the secrets of a County Antrim friary | Forrest, Stephen | Article in Book | | 2010 |
| Haw-Haw : the tragedy of William and Margaret Joyce | Farndale, Nigel | Monograph or Collective Volume | Macmillan | 2005 |
| Healing past wounds with more than an elastic bandage - a small-scale evaluation of attitudes and aspirations of contemporary Northern Irish Catholics | Breen, Paul | Article in Journal | | 2019 |
| Heart of Iona : a people, a parish, a place : celebrating 100 years of St. Columba's Church, 1905-2005 | | Monograph or Collective Volume | Centenary Committee | 2005 |
| Heirs to the kingdom : Kerry's political dynasties | O'Shea, Owen | Monograph or Collective Volume | O'Brien | 2011 |
| Henry II as a founder of monasteries | Hallam, Elizabeth M. | Article in Journal | | 1977 |
| Henry II, the Council of Cashel and the Irish bishops | Flanagan, Marie Therese | Article in Journal | | 1996 |
| Henry Montgomery : ecclesiastic and politician | Allen, Robert | Article in Journal | | 1944 |
| Henry Ó Dochartaigh : vicar-general of the diocese of Meath | Bonner, Brian | Article in Journal | | 1980 |
| Heresy in Ireland in the thirteenth and fourteenth centuries | Williams, Bernadette | Article in Book | | 2013 |
| Hermits and anchorites in late medieval Ireland | Ó Clabaigh, Colmán N. | Article in Book | | 2010 |
| Hiberno-Latin theology | Kelly, J. F. | Article in Book | | 1982 |
| Hiberno-romanesque churches | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2020 |
| Hidden Figures: a recently uncovered window at Ballysheen Church | Mac Gearailt, Micheál | Article in Journal | | 2024 |
| Hiding in plain sight | Barrett, GerardDonnelly, Colm | Article in Journal | | 2019 |
| Hierarchia catholica medii et recentioris aevi. Vol. 7 : 1800-1846 | Pirminus, P.Ritzler, P. Remigius | Monograph or Collective Volume | Il Messaggero di S. Antonio | 1968 |
| High flying : Edmund Burke's Éire-India | Janes, Regina | Article in Journal | | 1979 |
| High-Victorian stained glass by Lavers & Barraud in six churches in county Cork | Lawrence, David
| Article in Journal | | 2012 |
| Higher education | Moody, T. W. (Theodore William), 1907-1984 | Article in Book | | 1957 |
| Higher education in medieval Ireland | MacLoughlin, James | Article in Journal | | 1934 |
| Hillsborough : a parish in the Ulster Plantation | Barry, John | Monograph or Collective Volume | William Mullen & Son | 1982 |
| His Excellency, His Eminence and the minister : Paul Cullen and channels of political communication during the first Gladstone administration, 1868-74 | Murphy, James H. | Article in Book | | 2011 |
| His grace is displeased: selected correspondence of John Charles McQuaid | | Monograph or Collective Volume | Merrion | 2012 |
| Historia del reinado de Sancho IV de Castille | Gaibrois Riano de Ballesteros, Mercedes | Monograph or Collective Volume | [s.n.] | 1928 |
| Historic buildings, groups of buildings, areas of architectural importance in Rathfriland and Hilltown | Rankin, P. J. | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1979 |
| Historic buildings, groups of buildings, areas of architectural importance in the town of Carrickfergus | Campbell, G.Crowther, S. | Monograph or Collective Volume | | 1978 |
| Historic buildings, groups of buildings, areas of architectural importance in the town of Cavan | Garner, W. | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1978 |
| Historic buildings, groups of buildings, buildings of architectural importance in Donaghadee and Portpatrick | Dixon, HughKenmuir, K.Kennett, J. | Monograph or Collective Volume | Ulster Architectural Heritage Society | 1977 |
| Historic sites and traditions. I. Rev. William Reeves' 'Sites of ancient churches in the county of Armagh - December 1879' | | Article in Journal | | 1996 |
| Historic St Michan's | Troy, M.C. | Article in Journal | | 1930 |
| Historic Ulster Churches | Walker, Simon, 1970- | Monograph or Collective Volume | Institute of Irish Studies, Queen's University Belfast | 2000 |
| Historical and descriptive notes with illustrations of the ecclesiastical remains at Glendalough, Co. Wicklow | Commissioners of Public Works, IrelandLeask, H. G. (Harold G.) | Monograph or Collective Volume | The Stationery Office | 1937 |
| Historical highlights ; Parish of Aghaderg, Diocese of Dromore, Co. Down | Little, G. N. | Monograph or Collective Volume | Banbridge Chronicle Press [Printers] | 1989 |
| Historical notes of the abbey of Dunbrody | Morrin, James | Article in Journal | | 1879 |
| Historical notes of the parish of Kildress (Diocese of Armagh) : a lecture | Young, J. M. | Monograph or Collective Volume | Mid-Ulster Printing Works [printer] | 1913 |
| Historical Notes on the abbey and parish of Bangor | Carey, J. A. | Monograph or Collective Volume | John Aiken & Son | 1919 |
| Historical notes on the Parish of Tullylish | Myles, E. A. | Monograph or Collective Volume | Newton Publishing [printer] | 1937 |
| Historical notes on the parishes of Tullanisken and Clonoe | | Monograph or Collective Volume | [The author?] | 1937 |
| Historical notice of the Cathedral of the Holy and Undivided Trinity at Down: its past and present state, and the efforts for its improvement and restoration | [Down Cathedral] | Monograph or Collective Volume | Marcus Ward and Co. [Printer] | 1872 |
| Historical notices of the Anglican Archbishops of Armagh, Primates of All Ireland, during the nineteenth century | Garstin, John Ribton | Monograph or Collective Volume | W. Tempest, for private circulation. | 1900 |
| Historical sketch of Drumcree parish: diocese of Armagh | Rennison, H. W. | Monograph or Collective Volume | 'The Witness' Office | 1927 |
| Historical sketch of the Cathedral of the Holy Trinity of Down. Downpatrick | Parkinson, Edward | Monograph or Collective Volume | Down Recorder [printer] | 1904 |
| Historical studies, III : papers before the Fourth Irish Conference of Historians | | Monograph or Collective Volume | Bowes & Bowes | 1961 |
| Historical studies, IV | | Monograph or Collective Volume | Bowes & Bowes | 1963 |
| Historical studies, IX : Papers read before the Irish Conference of Historians, Cork, 29-31 May 1971 | | Monograph or Collective Volume | Blackstaff Press | 1974 |
| Historical studies, V | | Monograph or Collective Volume | Bowes & Bowes | 1965 |
| Historical studies, VIII | | Monograph or Collective Volume | Gill and Macmillan | 1971 |
| History and antiquities of the diocese of Ossory | Carrigan, William, 1860-1924 | Monograph or Collective Volume | [s.n.] | 1980 |
| History articles in the 'Irish Ecclesiastical Record', 1950-1968 | Ní Chearbhaill, Máire | Article in Journal | | 2023 |
| History in phrases | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1938 |
| History in stone | Smith, Des | Article in Journal | | 1996 |
| History of Annaghdown [ = title page] | Goaley, Michael | Monograph or Collective Volume | [The author]|Printed by Berry's, Westport | 1998 |
| History of Ballymacarrett Parish, Church of Ireland, Diocese of Down | Salmon, Stewart | Monograph or Collective Volume | [St Patrick's Church, Ballymacarrett] | 1993 |
| History of Clonmel | Burke, William P. | Monograph or Collective Volume | | 1907 |
| History of Holy Cross abbey and its relics | Anonymous | Article in Journal | | 1939 |
| History of Killeshin Parish. | Fennell, W.H. | Article in Journal | | 2012 |
| History of Limerick ecclesiastical, civil and military, from the earliest records, to the year 1787 | Ferrar, John | Monograph or Collective Volume | | 1787 |
| History of Seagoe Parish | Riley, David | Monograph or Collective Volume | [The author] | 1995 |
| History of St Mary's Cathedral, Limerick | Abbot, T. F., Rev. | Monograph or Collective Volume | George McKern & Sons | 1936 |
| History of St Mary's Cathedral, Limerick | Abbott, T. F., CanonDowd, James, Rev., | Monograph or Collective Volume | George McKern & Sons | 1936 |
| History of St. Mary's Church, Killarney | | Monograph or Collective Volume | [The author] | no date given |
| History of St. Michael's Church, Castle Caulfeild (Parish of Donaghmore, Co. Tyrone) | Burges, Ynyr A. | Monograph or Collective Volume | Tyrone Printing Co. | 1966 |
| History of St. Michael's Church, Castle Caulfield (Parish of Donaghmore Co. Tyrone) | Burges, Ynyr A. | Monograph or Collective Volume | Tyrone Printing Company | 1920 |
| History of the archdiocese of Boston in the various stages of its development 1604 to 1943. Vol. 1-3 | Harrington, Edward T.Lord, R. H.Sexton, John E. | Monograph or Collective Volume | Sheed & Ward | 1944 |
| History of the Catholic Diocese of Dublin | | Monograph or Collective Volume | Four Courts Press | 2000 |
| History of the diocese of Ardagh | MacNamee, James Joseph | Monograph or Collective Volume | Browne and Nolan | 1954 |
| History of the diocese of Clogher | | Monograph or Collective Volume | Four Courts | 2005 |
| History of the diocese of Dublin, 1 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1956 |
| History of the ecclesiastical ruins at Annaghdown | Goaley, Michael, Rev. | Monograph or Collective Volume | M. Goaley | 1982 |
| History of the ecclesiastical ruins at Annaghdown | Goaley, Michael | Monograph or Collective Volume | The author | 1981 |
| History of the Methodist Church in Carlow | O'Hara, Anne | Article in Journal | | 2011 |
| History of the natural, civil, military and ecclesiastical state of the county of Kerry in baronies accompanied by interesting antiquarian notices on the ancient remains therein together with an account of the state of the agrarian revolution and other political and religious movements - Corkaguiny | Foley, Patrick | Monograph or Collective Volume | Sealy, Bryers & Walker | 1907 |
| History of the parish of Derrykeighan for three centuries | Camac, Thomas | Monograph or Collective Volume | Northern Constitution [Printer] | 1930 |
| history of the parish of Foxrock | Cronin, Patrick | Monograph or Collective Volume | Foxrock Local History Club | 1984 |
| History of the parish of Knockbreda | Carmody, William Patrick | Monograph or Collective Volume | R. Carswell & Son | 1929 |
| History of the parish of St. Luke, Cork | Salter, George Alfred | Monograph or Collective Volume | [St. Luke's parish] | No date given |
| History of the Parish of Tynan in the County of Armagh: with notices of the O'Neill, Hovenden, Stronge and other families connected with the district | Marshall, John J. | Monograph or Collective Volume | Tyrone Printing Co. | 1932 |
| History of the ruling eldership in Irish presbyterianism | Barkley, J.M. | Thesis | | 1952 |
| History of Trinity College Mission 1912-34 | Trinity College Mission | Monograph or Collective Volume | Trinity College Mission | 1934 |
| History of west Cork and the diocese of Ross | Holland, William | Monograph or Collective Volume | Southern Star | 1950 |
| History, antiquities, and present state of the parishes of Ballysadare and Kilvarnet, in the county of Sligo: with notices of the O'Haras, the Coopers, the Percevals, and other local families | O'Rourke, T. | Monograph or Collective Volume | James Duffy and Sons | c. 1870 |
| Hitler's Irish voices : the story of German Radio's wartime Irish service | O'Donoghue, David | Monograph or Collective Volume | Beyond the Pale | 1998 |
| Hitler's Irish voices: German radio's propaganda service to Ireland, 1939-45 | O'Donoghue, David | Thesis | | 1995 |
| Hogan's Onomasticon and the work of the Northern Ireland Place-Name Project | Muhr, Kay | Article in Book | | 2011 |
| Hold firm : John Charles McQuaid and the second Vatican Council | Carty, Francis Xavier | Monograph or Collective Volume | Columba | 2007 |
| Holding up a lamp to the sun: Hiberno-papal relations and the construction of Irish orthodoxy in John Lynch’s Cambrensis Eversus (1662) | Ryan, Salvador | Article in Book | | 2013 |
| Hollywood, County Wicklow : with an account of its owners to the commencement of the seventeenth century | Fitzgerald, Walter, Lord | Article in Journal | | 1917 |
| Holy Cross 1902-2002 : centenary souvenir | | Monograph or Collective Volume | Horizon Publications | 2002 |
| Holy Cross Abbey | Mullaney, Michael | Article in Book | | 2012 |
| Holy Cross Abbey, Co. Tipperary | Morris, Thomas | Monograph or Collective Volume | Eason | 1986 |
| Holy Cross and the language of Irish late Gothic | O'Donovan, Danielle | Article in Book | | 2011 |
| Holy Cross church, Kenmare, 150 (1864-2014) : a social and local history | Holycross 150 History Group, Kenmare | Monograph or Collective Volume | Holy Cross 150 History Group | 2014 |
| Holy Cross College, Clonliffe, 1859-1959 | Sherry, Richard | Article in Journal | | 1960 |
| Holy images from England: Medieval English alabaster sculpture in Ireland | Cannan, Fergus | Article in Journal | | 2014 |
| Holy Redeemer Church, 1792-1991 : a Bray parish | Ó Cathaoir, Brendan | Monograph or Collective Volume | Church of the Most Holy Redeemer | 1991 |
| Holy ships - Ships on plaster at medieval ecclesiastical sites in Ireland | Brady, KarlCorlett, Christiaan | Article in Journal | | 2004 |
| Holy Trinity Church Crosshaven, Co. Cork : a short illustrated history to celebrate the sesquincentenary, 1868-2018 | Gill, Jennifer | Monograph or Collective Volume | Templebredy Church | 2018 |
| Holy Trinity Church, Westport | Hastings, Caitríona | Article in Journal | | 2014 |
| Hore Abbey, Co. Tipperary : its buildings, precinct and monastic estate | Stout, Geraldine | Article in Book | | 2017 |
| How Cashel and Emly were united | Ó Laoí, Cristóir | Article in Journal | | 1990 |
| How Christianity came to Britain and Ireland | Brown, Michelle P. | Monograph or Collective Volume | Lion | 2006 |
| How place-names began and how they develop | Matthews, C. M. | Monograph or Collective Volume | | 1974 |
| How the Church of Ireland is organised | Rooke, W. W. L. | Monograph or Collective Volume | A.P.C.K. | 1947 |
| How the Church of Ireland was disestablished | Sherman, Hugh | Monograph or Collective Volume | | 1970 |
| How the diocese of Meath came to be | Walsh, Paul, Revd, 1885-1941 | Article in Book | | 1938 |
| Hubert Butler : a bibliography | Anonymous | Article in Book | | 2003 |
| Hugh MacCaghwell, O.F.M., and Scotism at St. Anthony's College, Louvain | Giblin, Cathaldus | Article in Book | | 1968 |
| Hugh McCaghwell, O.F.M., archbishop of Armagh : aspects of his life | Giblin, Cathaldus | Article in Journal | | 1985 |
| Hugh McMahon, bishop of Clogher, 1707-15, and archbishop of Armagh, 1715-37 | Flynn, L. J. | Article in Journal | | 1973 |
| Hugh O'Neill, the Catholic question and the Papacy | Silke, John J. | Article in Journal | | 1965 |
| Huguenot church registers in Ireland | Costello, Vivien | Article in Book | | 1992 |
| Human frontiers in medieval Irish religious literature | Reid, Jennifer Karyn | Article in Book | | 2013 |
| Huntington Castle gardens ... a history going back to monastic times, with ancient garden features... | Davies, Mary | Article in Journal | | 2011 |
| Hutton of Hastings : the life and letters of William Hutton, 1801-61 | Boyce, Gerald E. | Monograph or Collective Volume | Hastings County Council | 1972 |
| Identity and victimhood among Northern Ireland border Protestants | Donnan, Hastings | Article in Book | | 2008 |
| Idir radacachas agus coimeádachas. Fealsúnacht agus feiniúlacht Raidió na Gaeltachta | Ó Drisceoil, Fachtna | Article in Journal | | 1996 |
| If community radio is the answer...what is the question? The birth of community radio in Ireland, 1975-1995 | Byrne, Jack | Article in Book | | 2007 |
| If these stones could speak... | Jennings, Fergal | Article in Journal | | 2019 |
| Illaunloughan : life and death on a small early monastic site | Marshall, Jenny WhiteWalsh, Claire | Article in Journal | | 1994 |
| Imagining St Caillín : the making of the Book of Fenagh | Gillespie, Raymond | Article in Book | | 2016 |
| Imago Christi? | Jenkins, David | Article in Journal | | 2021 |
| Immanuel Church, Parish of Ardoyne : the early years | Griffith, D. W., Canon | Monograph or Collective Volume | [C.R. Print (Printer)] | 1990 |
| Immigration, land, probate, administration, baptismal, marriage, burial, trade, military and other records of the Irish in America in the seventeenth and eighteenth century | O'Brien, Michael J. | Article in Journal | | 1915 |
| Improving clergymen, 1660-1760 | Barnard, T. C. (Toby Christopher) | Article in Book | | 1995 |
| Imventory | Heckett, Elizabeth WincottLamb, Peter.Teehan, Virginia | Article in Book | | 2004 |
| In his hand: 1870-1970 | Carson, G.J.A.Cave, S.A.Fawcett, F.W.Gebbie, J.H.Lovell, E.W.O'MPike, J.Ruddock, D. | Monograph or Collective Volume | Universal Publishing | 1970 |
| In holy terror : reporting on the Ulster troubles | Winchester, Simon | Monograph or Collective Volume | Faber | 1974 |
| In omnibus caritas : a sermon preached before the general synod, 1890 | Jellett, Henry | Article in Book | | 2004 |
| In our keeping : the archives of the Congregation of the Irish Dominican Sisters, Cabra | Horgan, Dominique | Article in Journal | | 1994 |
| In pursuit of Paradise. Carlow's garden heritage | Ryan, Mary Stratton | Article in Journal | | 2013 |
| In Pursuit of Táin Bó Cúailnge: Insights into the Work of Henry Morris from Dindshenchas Érenn | Trimble, Gearóid | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| In search of Fahan Mura | McLaughlin, L.S. | Article in Journal | | 2022 |
| In search of honour and a Catholic monarch : the assimiliation and integration of an Irish minority in early modern Castile, 1601-1638 | O'Scea, Ciaran | Thesis | | 2007 |
| In the blood : Irish racing dynasties | Holland, Anne | Monograph or Collective Volume | O'Brien Press | 2010 |
| In the footsteps of O'Donovan and O'Flyn. Settlement and religious practice in the parish of Kiltullagh from 1828 to 1858 | McGuire, Kevin | Article in Journal | | 2019 |
| In the name of decent citizens : the trials of Frank de Groot | Wright, Brian | Monograph or Collective Volume | ABC Books for the Australian Broadcasting Corporation | 2006 |
| In the shadow of the fairy hill : a history of Shinrone and Ballingary from pre-Christian times to the early 1900s | Mac Mahon, Noel | Monograph or Collective Volume | Kilcommon Press | 1998 |
| In the shadow of the spire : a profile of St John's parish | Fitzmaurice, W.Hannan, Kevin | Monograph or Collective Volume | [s.n.] | 1991 |
| In the tradition of St Finbarr : the parish of St Finbarr, Cork | Walsh, T. J. (Timothy J.) | Monograph or Collective Volume | Guy | 1951 |
| Inaugural address delivered by the right rev. Dr. Moran, bishop of Ossory, at the first meeting of the Ossory Archaeological Society, 7th January, 1874 | Moran, Patrick Francis, cardinal, 1830–1911 | Article in Journal | | 1879 |
| Inch Abbey and parish | Donnelly, Maureen | Monograph or Collective Volume | Newtonards Chronicle [Printer] | 1979 |
| Independent legal systems under a common dynastic rule : the examples of England and Hungary | Kireelfy, Albert | Article in Journal | | 1990 |
| Index to Killala and Achonry administration bonds | Ffolliott, Rosemary | Article in Journal | | 1975 |
| Index to Killala and Archonry wills | | Article in Journal | | 1967 |
| Index to Kilmore diocesan wills | | Monograph or Collective Volume | [s.n.] | 1975 |
| Index to the Irish Ecclesiastical Record 1864-1917 : documents | | Article in Journal | | 1959 |
| Industrial conditions in the nineteenth century | Bleakley, David | Article in Book | | 1957 |
| Industrial conditions in the twentieth century | Boyle, J. W. (John William) | Article in Book | | 1957 |
| Influences of ancient Irish law on the Collectio Canonum Hibernensis | Sheehy, Maurice P. | Article in Book | | 1971 |
| Inishdooey and its ancient church | Lacey, Brian; Mac Gairbheá; O'Toole, Peter (Aerial photographs) | Article in Journal | | 2024 |
| Inishmacsaint and a lost diocesan border | Gallagher, Patrick | Article in Journal | | 1953 |
| Inishmurray : ancient monastic island | Heraughty, Patrick | Monograph or Collective Volume | O'Brien Press | 1982 |
| Inishmurray : monks and pilgrims in an Atlantic landscape volume one : archaeological survey and excavations | | Monograph or Collective Volume | Collins | 2008 |
| Inistioge priory cloister arcade | Manning, Conleth | Article in Journal | | 1976 |
| Initial findings at Kilteasheen, Knockvicar, Co. Roscommon | Barton, KevinFinan, ThomasRead, Christopher | Article in Journal | | 2005 |
| Innocent XII and early Irish penal legislation | Creighton, Seamus | Article in Journal | | 1962 |
| Inquisition concerning the parishes of Co. Louth 1658 | Leslie, J. B. (James Blennerhassett) | Article in Journal | | 1929 |
| Inscriptions and heraldry from St Michael's Church, Charlestown, County Louth | Bellew, Seamus | Article in Journal | | 2012 |
| Inspiring stones : a Church of Ireland history of the dioceses of Limerick, Ardfert, Aghadoe, KIllaloe, KIlfenora, Clonfert, Kilmacduagh and Emly | Hewson, Adrain | Monograph or Collective Volume | The Diocesan Council of Limerick, Killaloe and Ardfert | 1995 |
| Institutional change and Irish public broadcasting | Murphy, Kenneth | Article in Journal | | 2007 |
| Institutional change and Irish public broadcasting | Murphy, Kenneth | Article in Journal | | 2007 |
| Insular Christianity : alternative models of the church in Britain and Ireland, c. 1570 – c. 1700 | | Monograph or Collective Volume | Manchester University Press | 2013 |
| Interim report on the excavations at Kells priory, Co. Kilkenny, 1980 | Fanning, Thomas | Article in Journal | | 1981 |
| Interlocking Spaces: - The Relative Location of Medieval Parish Churches, Churchyards, Marketplaces and Town Halls | Simms, Anngret | Article in Book | | 2006 |
| Interpretation of round towers - public appeal or professional opinion? | Corlett, Christiaan | Article in Journal | | 1998 |
| Interpretationes Patricianae | Bieler, Ludwig | Article in Journal | | 1967 |
| Intrepid Donegal ecclesiastic of the sixteenth century : the Most Rev. Donald McGonagle, D.D., bishop of Raphoe 1562-89 | Conaghan, Charles | Article in Journal | | 1976 |
| Introducing television in the age of Seán Lemass | Savage, Robert | Article in Book | | 2005 |
| Introduction | Wooding, Jonathan M. | Article in Book | | 2010 |
| Introduction | Dunlevy, Mairead | Article in Book | | 2004 |
| Introduction | Bhreathnach, Edel | Article in Book | | 2019 |
| Introduction | Keller, Wolfram R.Schluter, Dagmar | Chapter in Book | Nodus Publikationen | 2017 |
| Introduction | Refaussé, Raymond | Article in Book | | 2000 |
| Introduction | Kinealy, ChristineSwift, Roger | Article in Book | | 2006 |
| Introduction | Ryan, James G. | Article in Book | | 1992 |
| Introduction | Scott, Brendan | Article in Book | Cumann Seanchais Bhreifne | 2025 |
| Introduction | Refaussé, Raymond | Article in Book | | 2009 |
| Introduction | Begadon, Cormac ; Kelly, James E. | Article in Book | | 2022 |
| Introduction : Father Luke Wadding - a multifaced Irishman in a global world | Binasco, Matteo | Article in Book | | 2020 |
| Introduction : political censorship and the democratic state | Corcoran, Mary P.O'Brien, Mark | Article in Book | | 2005 |
| Introduction : Religious acculturation and affiliation in early modern Gaelic Scotland, Gaelic Ireland, Wales and Cornwall | Ó hAnnracháin, Tadhg | Article in Book | | 2014 |
| Invading inspirations | Dunne, Margaret | Article in Book | | 1997 |
| Inventaire des règles monastiques Irlandaises | Gougaud, Louis | Article in Journal | | 1908 |
| Inventory | Heckett, Elizabeth WincottLamb, PeterTeehan, Virginia | Article in Book | | 2004 |
| Inventory of articles belonging to the friary of Donegal, 1698 | Egan, Bartholomew, OFM | Article in Book | | 1952 |
| Investigating 'Peasant conversion' in Ireland and Anglo-Saxon England : a preliminary enquiry | Flechner, Roy | Article in Book | | 2016 |
| Iona and Lindisfarne | Winmill, J. M. | Article in Journal | | 1953 |
| Iona v. Kells : succession, jurisdiction and politics in the Columban Familia in the later tenth century | Clancy, Thomas Owen | Article in Book | | 2011 |
| Iona's style of government : the toponomastic evidence | MacDonald, Aidan | Article in Journal | | 1985 |
| Iona, Kells and Derry : the history and hagiography of the monastic Familia of Columba | Herbert, Máire | Monograph or Collective Volume | Clarendon Press | 1988 |
| Ireland : a new geographical pastime? | O'Kane, Finola | Article in Book | | 2015 |
| Ireland a colony : settlement implication of the revolution in military-administrative, urban and ecclesiastical structures c.1550 to c.1730 | Smyth, W. J. (William John), 1944- | Article in Book | | 1999 |
| Ireland and Christendom : the bible and the missions | | Monograph or Collective Volume | | 1987 |
| Ireland and Europe in the twelfth century : reform and renewal | | Monograph or Collective Volume | Four Courts | 2006 |
| Ireland and France in the twentieth century - contrasting and conflictive relationships | Keogh, Dermot | Article in Book | | 2009 |
| Ireland and Germany in the tradition of St Kilian | Henning, John | Article in Journal | | 1952 |
| Ireland and Rome in the eleventh century | Gwynn, Aubrey | Article in Journal | | 1941 |
| Ireland and Rome in the twelfth century | Gwynn, Aubrey | Article in Journal | | 1941 |
| Ireland and Scotland in the later middle ages | Stalley, Roger | Article in Book | | 1994 |
| Ireland and the continent in the eleventh century | Gwynn, Aubrey | Article in Journal | | 1953 |
| Ireland and the Council of Basel | Schofield, A. N. E. D. | Article in Journal | | 1967 |
| Ireland and the council of Trent | Carey, F. P. | Article in Journal | | 1945 |
| Ireland and the Council of Trent | Brady, John, d.1963 | Article in Journal | | 1946 |
| Ireland and the Ecclesiastical Titles Bill | Brady, J. | Article in Journal | | 1950 |
| Ireland and the Holy See | Sheehy, Maurice P. | Article in Journal | | 1962 |
| Ireland and the Irish : a short history | Bottigheimer, Karl S. | Monograph or Collective Volume | Columbia University Press | 1982 |
| Ireland and the movies : from the Volta Cinema to RTE | MacKillop, James | Article in Journal | | 1984 |
| Ireland and the Weather War over the North Atlantic, 1940-1945 | McCarthy, Patrick | Article in Journal | | 2021 |
| Ireland and Würzburg in the middle ages | Gwynn, Aubrey | Article in Journal | | 1952 |
| Ireland at the Vatican council. parts 1-2 | Mac Suibhne, Peadar | Article in Journal | | 1960 |
| Ireland before the Normans | Ó Corráin, Donnchadh | Monograph or Collective Volume | Gill & Macmillan | 1972 |
| Ireland before the Vikings | Mac Niocaill, Gearóid | Monograph or Collective Volume | Gill & Macmillan | 1972 |
| Ireland in early mediaeval Europe : studies in memory of Kathleen Hughes | | Monograph or Collective Volume | Cambridge University Press | 1982 |
| Ireland in Europe : Paolo Giovio's Descriptio (1548) | Harris, Jason | Article in Journal | | 2007 |
| Ireland in the Anglo-Norman period, 1170-1540 | Cahill, Edward | Article in Journal | | 1936 |
| Ireland in the general elections (1826-1911) | O'Brien, Richard Barry | Article in Journal | | 1911 |
| Ireland in the nineteenth century | Cahill, Edward | Article in Journal | | 1944 |
| Ireland's contribution to the devotion to Old Testament saints | Hennig, John | Article in Journal | | 1965 |
| Ireland's debt to Newman | Hegarty, W. J. | Article in Journal | | 1945 |
| Ireland's first papal nuncio | Corish, Patrick J. | Article in Journal | | 1954 |
| Ireland's Hastings : the Anglo-Norman conquest of Dublin | Duffy, Seán | Article in Journal | | 1998 |
| Ireland's oldest music manuscript? | Ó Riain, Dagmar | Article in Journal | | 1997 |
| Ireland's place in the tradition of the 'Martyrologium Romanum' | Hennig, John | Article in Journal | | 1967 |
| Ireland's place in the tradition of the Cistercian menology | Hennig, John | Article in Journal | | 1961 |
| Ireland's second cardinal, Edward McCabe (1816-1885) | McCabe, Brian | Article in Journal | | 2002 |
| Ireland's spiritual empire : church dedications in Australia | Hennig, John | Article in Journal | | 1944 |
| Ireland, 1815-70 : emancipation, famine and religion | | Monograph or Collective Volume | Four Courts | 2011 |
| Ireland, Brittany and England : transmission and use of the "Collectio Canonum hibernensis" | Dumville, David N. | Article in Book | | 1994 |
| Iren auf dem Continent. Das Leben des Marianus Scottus von Regensburg und die Anfange der irischen Schottenklöster | Weber, Stefan | Monograph or Collective Volume | Mattes Verlag | 2010 |
| Iren in der lothringischen Klosterreform | Semmler, Josef | Article in Book | | 1982 |
| Irene McAlery - a lady of many parts | Dudman, Moyra | Article in Journal | | 2003 |
| Irisches Mönchtum und cluniazensizche Klosterreform | Bulst, Neithard | Article in Book | NA | 1982 |
| Irish and Armenian Ecclesiastics in Medieval Iceland | Cormack, Margaret | Article in Book | | 2007 |
| Irish Anglicanism, 1869-1969 : essays on the role of Anglicanism in Irish life | NA | Monograph or Collective Volume | NA | 1970 |
| Irish Anglicanism, 1969–2019 : Essays to mark the 150th anniversary of the Disestablishment of the Church of Ireland | | Monograph or Collective Volume | Four Courts Press | 2019 |
| Irish archaeology and the poetry of Edmund Spenser : content and context | Herron, Thomas, 1968- | Article in Book | | 2009 |
| Irish art and architecture from prehistory to the present | Harbison, PeterPotterton, HomanSheehy, Jeanne | Monograph or Collective Volume | Thames & Hudson | 1978 |
| Irish Baptist church records | Gribbon, H. D. | Article in Book | | 1992 |
| Irish bishops and clergy in exile in mid-seventeenth century France | D'Ambrienes, René,Ó Ciosáin, Éamon | Article in Journal | | 2008 |
| Irish bishops, their biographers and the experience of revolution | McCafferty, John | Article in Book | | 2011 |
| Irish cardinals | Ní Chearbhaill, Maire | Monograph or Collective Volume | Elton Press | 1983 |
| Irish cathedral libraries before 1700 | Gillespie, Raymond | Article in Book | | 2005 |
| Irish Catholics and Aristotelian scholastic philosophy in early modern France, c.1600-c.1750 | Chambers, Liam | Article in Book | | 2009 |
| Irish chastity? British social purity associations and the Irish Free State | Mullin, Katherine | Article in Book | | 2010 |
| Irish church : architecture in the era of Vatican II | Hurley, Richard | Monograph or Collective Volume | Dominican Publications | 2001 |
| Irish church finances after the disestablishment | Shearman, Hugh | Article in Book | | 1949 |
| Irish church libraries and the French Enlightenment | McKee, Jane | Article in Book | | 1999 |
| Irish Church Records | Sharkey, Joan | Article in Journal | | 2012 |
| Irish church-building : popery, Pugin and the Protestant ascendancy | Sheehy, Jean | Article in Book | | 1995 |
| Irish churches and monasteries : an historical and architectural guide | O'Reilly, Sean D. | Monograph or Collective Volume | Collins Press | 1997 |
| Irish churches and monastic buildings. 3 vols. | Leask, H. G. (Harold G.) | Monograph or Collective Volume | Dundalgan Press | 1955 |
| Irish Cistercian monasteries and their carved decoration | Henry, Françoise, 1902-1982 | Article in Journal | | 1966 |
| Irish civil society : from church to media domination | Inglis, Tom | Article in Book | | 2000 |
| Irish clergy abroad | Marshall, William | Article in Book | | 2006 |
| Irish clergy and the diocesan church in the 'four obedient shires' of Ireland, c.1400-c.1540 | Booker, Sparky | Article in Journal | | 2014 |
| Irish clergy in the high and late middle ages | Empey, C. A. (Adrian) | Article in Book | | 2006 |
| Irish clerics and Jacobites in early eighteenth-century Paris, 1700-30 | O'Connor, Priscilla | Article in Book | | 2001 |
| Irish college at Salamanca - last days | Browne, Michael | Article in Journal | | 1971 |
| Irish colleges abroad | Wall, Thomas | Article in Journal | | 1947 |
| Irish croziers of the eighth and ninth centuries | Bourke, Cormac | Article in Book | | 1987 |
| Irish Dominican medieval architecture | Conlon, Patrick | Article in Book | | 2002 |
| Irish Dominican medieval architecture | Conlan, Patrick, 1940- | Article in Book | | 2002 |
| Irish ecclesiastical architecture | Champneys, A. C. | Monograph or Collective Volume | | 1910 |
| Irish ecclesiastical architecture, with some notice of similar or related work in England, Scotland and elsewhere | Champneys, ArthurDe Paor, Liam | Monograph or Collective Volume | Irish University Press | 1970 |
| Irish ecclesiastical history and the papal archives : 2, the archives of the Sacred Congregation de Propaganda Fide | Millett, Benignus | Article in Journal | | 1956 |
| Irish ecclesiastical history and the papal archives : 3, the archives of the Nunziatura di Fiendra | Giblin, Cathaldus | Article in Journal | | 1956 |
| Irish ecclesiastical history and the papal archives, introduction | Corish, Patrick J. | Article in Journal | | 1956 |
| Irish ecclesiastical history since 1500 | Corish, Patrick J. | Article in Book | | 1981 |
| Irish elements in the Catechesis Celtica | Ó Laoghaire, Diarmuid, SJ | Article in Book | | 1987 |
| Irish emigration to Castille in the opening years of the seventeenth century | O'Scea, Ciaran | Article in Book | | 2004 |
| Irish emigration to England explored through buildings : the Green and the Grey | Lyster, Samantha | Monograph or Collective Volume | Liverpool University Press on behalf of Historic England | 2025 |
| Irish enterprise in the university of Paris (1651-1653) | Wall, Thomas | Article in Journal | | 1944 |
| Irish episcopal meetings, 1788-1882 : a juridico-historical study | Cannon, Sean | Monograph or Collective Volume | Pontifical University | 1979 |
| Irish episcopal temporalities in the 13th century | Cosgrove, Art | Article in Journal | | 1974 |
| Irish episcopal temporalities in the thirteenth century | Cosgrove, Art | Article in Journal | | 1974 |
| Irish episcopalians in the Scottish episcopal diocese of Glasgow and Galloway during the nineteenth century | Meredith, Ian | Article in Book | | 2011 |
| Irish Franciscan archbishop of Dublin : Thomas Fleming, 1623-1655 | Barrett, Fergus | Article in Journal | | 1941 |
| Irish Franciscan friary architecture : late medieval and early modern | O'Neill, Michael | Article in Book | | 2009 |
| Irish Franciscan libraries of the past | Mooney, Canice | Article in Journal | | 1942 |
| Irish Gothic theory before Pugin | Masheck, J. D. C. | Article in Journal | | 1981 |
| Irish grammarians and the Continent in the seventh century | Holtz, Louis | Article in Book | | 1984 |
| Irish immigrants in Argentina | Ussher, James | Article in Journal | | 1948 |
| Irish in the Danish and pre-Norman period | Cahill, Edward | Article in Journal | | 1936 |
| Irish Jewish records as a genealogical source | Siev, Raphael | Article in Book | | 1992 |
| Irish kings and bishops in the memoria of the German Schottenklöster | Ó Riain-Raedel, Dagmar | Article in Book | | 1984 |
| Irish manuscript ecclesiastical census returns | Royle, Stephen A. (Stephen Arthur) | Article in Journal | | 1982 |
| Irish manuscripts in medieval Germania | Bieler, Ludwig | Article in Journal | | 1957 |
| Irish missionaries in Bengal, 1834-59 | Finegan, Francis | Article in Journal | | 1963 |
| Irish missions to Africa | Needham, Ciaran | Article in Journal | | 1961 |
| Irish monastic activities in eastern Europe | Hennig, John | Article in Journal | | 1945 |
| Irish monastic and episcopal deeds, A.D. 1200-1600. Transcribed from the originals preserved at Kilkenny Castle. With an appendix of documents of the sixteenth and seventeenth centuries relating to monastic property after the dissolution | White, Newport B. | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1936 |
| Irish monastic and episocopal deeds, A.D. 1200-1600 : transcribed from the originals preserved at Kilkenny Castle. With an appendix of documents of the sixteenth and seventeenth centuries relating to monastic property after the Dissolution. (Ormond Deeds, being the Mediaeval Deeds preserved at Kilkenny Castle) | | Monograph or Collective Volume | | 1936 |
| Irish monastic art, 5th to 8th centuries | Graham-Campbell, James A. | Article in Journal | | 1983 |
| Irish monastic charters, 1142-1230 | Flanagan, Marie-Thérèse | Thesis | | 1973 |
| Irish monastic fisheries | Went, A. E. J. | Article in Journal | | 1955 |
| Irish monasticism : origins and early development | Ryan, John | Monograph or Collective Volume | Irish University Press | 1972 |
| Irish monasticism : origins and early development | Ryan, John | Monograph or Collective Volume | | 1931 |
| Irish monasticism : origins and early development | Ryan, John | Monograph or Collective Volume | Four Courts | 1992 |
| Irish monasticism and the concept of inheritance : an examination of its legal aspects | Mori, Setsuko | Monograph or Collective Volume | Hosei University, Institute of Comparative Economic Studies | 1992 |
| Irish monasticism and the concept of inheritance : an examination of its legal aspects | Mori, Setsuko | Article in Book | | 1993 |
| Irish monks and learning | Hughes, Kathleen Winifred | Article in Book | | 1963 |
| Irish monks and the transmission of learning | Graham, Hugh | Article in Journal | | 1925 |
| Irish monks in Germany in the late Middle Ages | Ó Fiaich, Tomás | Article in Book | | 1989 |
| Irish monks in the Golden Age | | Monograph or Collective Volume | | 1963 |
| Irish names in the Malines ordination registers, 1602-1794 | Jennings, Brendan | Article in Journal | | 1952 |
| Irish or Welsh? excavations at the early medieval site of St Patrick's Chapel, St David's, Pembrokeshire, Wales | Murphy, Ken | Article in Book | | 2024 |
| Irish pensioners of the French clergy, 1686-1778 | Finegan, Francis | Article in Journal | | 1966 |
| Irish peregrini on the continent : recent research in Germany | Ó Fiaich, Tomás | Article in Journal | | 1965 |
| Irish pioneers in ocean navigation of the middle ages | Marcus, G. J. | Article in Journal | | 1951 |
| Irish poetry and traditional literature (1540-1690) | Cahill, Edward | Article in Journal | | 1939 |
| Irish possessions of St. Thomas of Acre | Brooks, E. St. J. | Article in Journal | | 1956 |
| Irish Presbyterian registers | McClelland, Aiken | Article in Journal | | 1959 |
| Irish prisoners in the Bastille | O hAnnracháin, Eoghan | Article in Journal | | 2008 |
| Irish Quaker records | Harrison, Richard S. | Article in Book | | 1992 |
| Irish radio data : 1926-1980 | Kealy, Alacoque | Monograph or Collective Volume | Radio Telefís Éireann | 1981 |
| Irish rectors at Seville, 1619-1687 | Finegan, Francis | Article in Journal | | 1966 |
| Irish religious networks in colonial South Asia, ca. 1788-1858 | Crosbie, Barry | Article in Book | | 2015 |
| Irish representatives and Irish ecclesiastical affairs at the Fourth Lateran Council | Dunning, P. J. | Article in Book | | 1961 |
| Irish Romanesque architecture | O'Keeffe, Tadhg | Article in Book | | 1998 |
| Irish round towers | Stalley, Roger | Monograph or Collective Volume | Country House | 2000 |
| Irish round towers | Barrow, Lennox | Monograph or Collective Volume | Eason | 1976 |
| Irish Round Towers: origins and purposes | McDonnell, Hector | Article in Journal | | 2018 |
| Irish saints in the liturgical and artistic tradition of central Europe | Hennig, John | Article in Journal | | 1943 |
| Irish saints in the Martiloge in Englyssche, 1526 | Hennig, John | Article in Journal | | 1958 |
| Irish saints' cults and ecclesiastical families | Ó Riain, Pádraig | Article in Book | | 2002 |
| Irish scholarship in the penal era : scribes, shanachies, philology, history, religious works and anthologies | Cahill, Edward | Article in Journal | | 1940 |
| Irish seminaries in the eighteenth century | Dowling, Edward | Article in Journal | | 1941 |
| Irish stars in the archives of New York province | Hastings, Hugh | Article in Journal | | 1910 |
| Irish stars in the archives of New York province | Hastings, Hugh | Article in Journal | | 1910 |
| Irish students at Leuven University, 1548-1797 : a prosopography | Nilis, Jeroen | Monograph or Collective Volume | Acco | 2010 |
| Irish students ordained in Rome (1625-1710) | Egan, Bartholomew, OFMGiblin, CathaldusMcGrath, Cuthbert | Article in Journal | | 1943 |
| Irish synchronistic poem on emperors and kings | Smith, Peter J. | Article in Journal | | 2012 |
| Irish television : the political and social origins | Savage, Robert | Monograph or Collective Volume | Cork University Press | 1996 |
| Irish tithes in British politics | Brynn, Edward | Article in Journal | | 1970 |
| Irish urban cultures | | Monograph or Collective Volume | Institute of Irish Studies, QUB | 1993 |
| Irish voices from the Spanish Inquisition : migrants, converts and brokers in early modern Iberia | O'Connor, Thomas | Monograph or Collective Volume | Palgrave Macmillan | 2016 |
| Irish wayside and churchyard crosses, 1600-1700 | King, H. A. | Article in Journal | | 1985 |
| Irish-language broadcasting : history, ideology and identity | Watson, Iarflaith | Article in Journal | | 2002 |
| Irish-language theatre in the 1990s : slógadh to Teilifís na Gaeilge | Blake, James J. | Article in Journal | | 1999 |
| Irland und Europa -Ireland and Europe. Die Kirche im Frühmittelalter - the early Church | | Monograph or Collective Volume | | 1984 |
| Irlanda en Alcalá : la comunidad Irlandesa en la universidad de Alcalá y su proyección Europea, 1579-1785 | Recio Morales, Óscar | Monograph or Collective Volume | Fundación Colegio del Rey | 2004 |
| Irregular marriages in Dublin before 1837 : Church book for matrimony to the German church, Poolbeg Street, Dublin, 1806-1837 | | Monograph or Collective Volume | Dundalgan Press | 2015 |
| Is British history international history? | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Article in Book | | 2002 |
| Is iad is abhar glóirithe dom | Ó Láimhín, Peadar | Article in Book | | 2000 |
| Iseal Chiarain, the low place of St Ciaran, where was it situated? | Cox, Liam F. | Article in Journal | | 1969 |
| Isle of the saints : monastic settlement and Christian community in early Ireland | Bitel, Lisa M., 1958- | Monograph or Collective Volume | Cornell University Press | 1990 |
| Isle of the saints : monastic settlement and Christian community in early Ireland | Bitel, Lisa M., 1958- | Monograph or Collective Volume | Cork University Press | 1993 |
| Isolated in the wilderness : An archaeological exploration of nunneries in the medieval landscape of Ireland | Collins, Tracy | Article in Book | Four Courts Press | 2018 |
| Isolation or involvement? | Fenn, R. W. D. | Article in Book | NA | 1974 |
| It's All about Me : Sports History and Television | Cronin, Mike | Article in Journal | | 2009 |
| Italian merchant bankers and the collection of papal revenues in Ireland in the thirteenth century | O'Sullivan, M. D. (Mary Donovan) | Article in Journal | | 1947 |
| J.J. O'Kelly, the Catholic Bulletin and contemporary Irish cultural historians | Murphy, Brian | Article in Journal | | 1989 |
| James Alypius Goold, O.S.A., first archbishop of Melbourne | Martin, F. X. (Francis Xavier), 1922-2000 | Article in Journal | | 1988 |
| James Blake of Galway | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1937 |
| James Blake of Galway and the death of Red Hugh O'Donnell | Jones, Frederick | Article in Journal | | 1951 |
| James Charles McGuigan : first cardinal from English Canada | McGuigan, Peter | Article in Book | | 1988 |
| James Comerford (1817-1902) : rediscovering a Wexford-born Victorian stuccodore's art | Comerford, Patrick | Article in Journal | | 2012 |
| James Connolly and the Irish labour movement | McKevitt, Peter | Article in Journal | | 1941 |
| James Doyle (J.K.L.), bishop of Kildare and Leighlin, and the Roman Catholic relief movement, 1822-5 | Power, Conleth J. | Thesis | | 1968 |
| James Duhig | Boland, T. P. | Monograph or Collective Volume | University of Queensland Press | 1986 |
| James Martineau and the Catholic spirit amid the tensions of Dublin, 1828-1832 | Waller, Ralph | Article in Book | | 1989 |
| James Martineau and the Catholic spirit amid the tensions of Dublin, 1828-32 | Walker, Ralph S. | Article in Book | | 1989 |
| James Murphy, bishop of Clogher, 1801-24 | Ó Dufaigh, Seosamh | Article in Journal | | 1968 |
| James Naughton, Bishop of Killala, 1911-1950 : the man, his life, in particular his laws | Rogan, Eddie | Article in Journal | | 1992 |
| James Ussher and John Bramhall : the theology and politics of two Irish ecclesiastics of the seventeenth century | Cunningham, Jack, 1964- | Monograph or Collective Volume | Ashgate | 2007 |
| James Ussher and the "Ussherian" episcopacy, 1640-16556: the primate and his 'Reduction' manuscript | Abbott, W. M. | Article in Journal | | 1990 |
| James Ussher and the creation of an Irish protestant identity | Ford, Alan, 1956- | Article in Book | | 1998 |
| James Ussher, archbishop of Armagh | Knox, Robert Buick | Monograph or Collective Volume | | 1967 |
| James Vaughan, Warden of Galway: ambition and achievement in Restoration Ireland | Gillespie, Raymond | Article in Journal | | 2020 |
| James VI and I, the Church of Scotland, and British ecclesiastical convergence | Macdonald, Alan R., 1969- | Article in Journal | | 2005 |
| Jerpoint | Hegarty, Maureen | Article in Journal | | 1971 |
| Jerpoint Abbey, Co. Kilkenny | Leask, H. G. (Harold G.) | Monograph or Collective Volume | The Stationery Office | 1939 |
| Jewish heritage : Britain and Ireland. An architectural guide | Kadish, Sharman | Monograph or Collective Volume | Historic England | 2015 |
| Jimmy Magee : the official biography, I remember it well | Magee, Jimmy | Monograph or Collective Volume | Blackwater | 2000 |
| John Allen Fitzgerald Gregg, archbishop | Seaver, George | Monograph or Collective Volume | Faith P.|Hodges Figgis | 1963 |
| John Archdeacon Begley : a concise biography | Begley, Donal | Monograph or Collective Volume | Donal Begley | 2017 |
| John Bramhall's other island : a Laudian solution to an Irish problem | Cunningham, Jack, 1964- | Article in Journal | | 2008 |
| John Bramhall's second Irish career 1660-3 | McCafferty, John | Article in Book | | 2009 |
| John Cardinal McCloskey | Mullan, Desmond | Article in Journal | | 1979 |
| John Colton, justiciar of Ireland (1382) and archbishop of Armagh (1383-1404) | Watt, J. A. | Article in Book | | 1981 |
| John Foxholes Franciscan Archbishop of Armagh 1471-74 | Millett, Benignus | Article in Journal | | 1999 |
| John Garzia, a noted priest-catcher and his activities, 1717-23 | MacGrath, Kevin. | Article in Journal | | 1949 |
| John Girvan for Christ and his Church | Lockington, John W. | Monograph or Collective Volume | Ambassador International | 2005 |
| John Henry Newman's Catholic university church in Dublin | Kane, Eileen | Article in Journal | | 1977 |
| John Hungerford Pollen and University Church | Curran, C. P. | Article in Book | | 1945 |
| John Joseph Hughes (1797-1864), first archbishop of New York | Canning, B. J. (Bernard J.) | Article in Journal | | 1964 |
| John Lynch and renaissance humanism in Stuart Ireland: Catholic intellectuals, Protestant noblemen and the Irish 'Respublica' | Campbell, Ian W. S. | Article in Journal | | 2010 |
| John Lynch's history of the Irish bishops | Brady, John, d.1963 | Article in Journal | | 1945 |
| John MacEvilly, 1816-1902 | Bane, Liam | Thesis | | 1979 |
| John MacHale and John MacEvilly : conflict in the 19th century Catholic hierarchy | Bane, Liam | Article in Journal | | 1984 |
| John MacHale, archbishop of Tuam | Costello, Nuala | Monograph or Collective Volume | Talbot Press | 1939 |
| John MacHale, Henry Cooke and the curious demise of the confessional state in Ireland | Miller, David W. | Article in Book | | 2010 |
| John McHale and John MacEvilly : conflict in the nineteenth- century Catholic hierarchy | Bane, Liam | Article in Journal | | 1984 |
| John McHale, Archbishop of Tuam | Lyons, John | Article in Journal | | 1984 |
| John O'Connor (1920-1959): a personal remembrance of the life and work of the Armagh author of 'Come Day - Go Day' | Gough, Fionnuala (née O'Connor) | Article in Journal | | 2015 |
| John Scottus Eriugena and the uses of dialectic | Kavanagh, Catherine | Article in Book | | 2009 |
| John Semple and his churches | Craig, Maurice James | Article in Journal | | 1989 |
| John Thomas Troy, Archbishop of Dublin, 1786-1823 : a man of his times | O'Donoghue, Patrick | Article in Book | | 1990 |
| Joseph Kavanagh and the attack on the Bastille | Cavanagh, Cathal | Article in Journal | | 2004 |
| Jottings from Maynooth records | Scrutator | Article in Journal | | 1940 |
| Journalism and the public sphere in Northern Ireland after devolution : how journalists' sources have evolved since devolution in Northern Ireland 2003-12 | Moore, Martin | Thesis | | |
| Journalists and Censorship : a case history of the NUJ in Ireland and the broadcasting ban 1971–94 | Horgan, John, b. 1940 | Article in Journal | | 2002 |
| Journey to reconciliation | Finlay, Finola | Article in Journal | | 2018 |
| Juniors teaching elders : Columbanus, Rome and spiritual authority | Bracken, Damian | Article in Book | | 2007 |
| Just Joe : my autobiography | Duffy, Joe, 1956- | Monograph or Collective Volume | Transworld Ireland | 2011 |
| Keening, crooning and casting spells : women, sleep and folk genres in medieval Irish poetry | Larson, Heather J. | Article in Journal | | 1998 |
| Keepers of the Flame: bringing the Military Service Pensions Collection archive to screen, A conversation between Diarmaid Ferriter and Nuala O’Connor | Ferriter, DiarmaidO’Connor, Nuala | Article in Book | | 2023 |
| Keeping it in the family: Familial connections of abbesses and prioresses of convents in medieval Ireland | Lyons, Mary Ann | Article in Book | | 2023 |
| Kells and its priory | Clyne, Miriam | Article in Book | | 2017 |
| Kells priory, c.1500: a fortified monastic house | Tietzsch-Tyler, Daniel | Article in Book | | 2017 |
| Kells Priory, Co. Kilkenny : archaeological excavations by T. Fanning and M. Clyne | Clyne, Miriam | Monograph or Collective Volume | Stationery Office | 2007 |
| Kelly : a memoir | Anderson, Don, 1942-Kelly, Gerry, 1948- | Monograph or Collective Volume | Gill & Macmillan | 2008 |
| Kerry's ancient see and shrine, Ardfert-Brendan | Nunan, Francis | Monograph or Collective Volume | Kerryman | 1950 |
| Kevin : a portrait of Archbishop Kevin McNamara | Power, Louis | Monograph or Collective Volume | [s.n.] | 1993 |
| Key concepts | Fitzpatrick, MargaretHartnett, Eoin,O'Riordan, TomásÓ Corráin, Donnchadh, | Article in Book | | 2011 |
| Kiladreenan and Newcastle | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1933 |
| Kilbrogan Church & Graveyard | Desmond, John | Article in Journal | | 2013 |
| Kilchreest Church and Graveyard | Dolan, Stephen | Article in Journal | | 2015 |
| Kilcolman parish registers, 1793-1814 & 1824-1900, County Kerry, Church of Ireland. with sections from Killorglin, Aglish, Kiltallagh, Knocknane, Molahiffe. | | Monograph or Collective Volume | John Spring & Louise Windeyer | 2003 |
| Kilcoo Parish Church, Bryansford | Countess of Roden, Clodagh | Monograph or Collective Volume | Mourne Observer [Printer] | 1971 |
| Kilcooley Abbey | Barrett, Maura | Monograph or Collective Volume | Sliabh Ardagh Rural Development | 2010 |
| Kilcooly Abbey. Part 1 | Columbkille, Fr. | Article in Journal | | 1984 |
| Kilcorban Friary, Co. Galway. Ireland's only house of the Dominican Third Order Regular | McDermott, Yvonne | Article in Journal | | 2014 |
| Kilcormac parish : celebrating 150 years of the Church of the Nativity of the B.V.M. | Kilcormac Parish Committee | Monograph or Collective Volume | Kilcormac Parish Committee | 2018 |
| Kildare : its history and antiquities | Murphy, Denis | Article in Journal | | 1899 |
| Kildare before the Normans : "an episcopal and conventual see" | Etchingham, Colmán | Article in Journal | | 2000 |
| Kildare from the documents of conquest : the monastic extents 1540 and the civil survey 1654-1656 | Nolan, William | Article in Book | | 2006 |
| Kildare Hall, the countess of Kildare's patronage of the Jesuits, and the liturgical setting of Catholic worship in early seventeenth-century Dublin | Loeber, RolfStouthamer-Loeber, Magda | Article in Book | | 2006 |
| Kildemock and its jumping church | MacIvor, Dermot | Monograph or Collective Volume | County Louth Archaeological Society | 2004 |
| Kilfenora (Feneborensis): a diocese apart | Mac Mahon, Michael | Article in Journal | | 2018 |
| Kilferagh, Co. Kilkenny: a medieval parish and its church | Manning, Conleth | Article in Journal | | 2012 |
| Kilkea church and rectory | Kane, Eamon | Article in Journal | | 2004 |
| Kilkeedy : a success story from a rural parish of the preservation of historic ruins | Hanley, Francis | Monograph or Collective Volume | Corcamore | 2001 |
| Kilkenny : its architecture and history | | Monograph or Collective Volume | An Taisce | 1977 |
| Kilkenny : past and present | Bradley, John, 1954-2014 | Article in Journal | | 2008 |
| Killadreenan Church revisited | Corlett, Christiaan | Article in Journal | | 2015 |
| Killala diocese : 1835-1839 | MacHale, E. | Article in Journal | | 1985 |
| Killala diocese in 1830-1831 | MacHale, E. | Article in Journal | | 1982 |
| Killala diocese in 1832 to 1834 | MacHale, E. | Article in Journal | | 1983 |
| Killala diocese, 1840-45 : the political background | MacHale, E. | Article in Journal | | 1986 |
| Killashee Church | Murphy, Denis | Article in Journal | | 1895 |
| Killeavy churches | Davies, Oliver | Article in Journal | | 1940 |
| Killeenbrenan Friary: Flag-ship house of the Franciscan Third Order in Ireland? | McDermott, Yvonne | Article in Journal | | 2012 |
| Killeshin and Sletty | Comerford, M., P.P. | Article in Journal | | 1883 |
| Killeshin church and its Romanesque ornament | Crawford, H. S.Leask, H. G. (Harold G.) | Article in Journal | | 1925 |
| Killinagh Church and Crom Cruaich | Davies, Oliver | Article in Journal | | 2013 |
| Killinchy parish church | Rudnitzky, Honor | Monograph or Collective Volume | Parish of Killinchy Union | 1980 |
| Kilmainham of the woody hallow : a history of Kilmainhamwood for the centenery of the church of the Sacred Heart, Kilmainhamwood (1898-1998) | Cusack, Danny | Monograph or Collective Volume | Kilmainhamwood Parish Council | 1998 |
| Kilmallock Dominican priory : an architectural perspective, 1291-1991 | Hogan, Arlene | Monograph or Collective Volume | | 1991 |
| Kilmoe church | Snodgrass, Lee | Article in Journal | | 1994 |
| Kilmore churches | Galloghy, Dan | Article in Journal | | 1994 |
| Kilmore parish in 1833 | [Paterson] | Monograph or Collective Volume | [Kilmore parish] | 1833 |
| Kilnasoolagh church, Newmarket on Fergus : an appreciation | Bailey, Edwin R. | Monograph or Collective Volume | The author | 1992 |
| Kilpeacon parish church, Kilpeacon, Crecora, Co. Limerick, 1690-1900 | Johnston, Niall | Monograph or Collective Volume | [Niall Johnston] | 1990 |
| Kilranelagh and the Uí Máil | Ní Chon Uladh, Póilín | Article in Journal | | 2000 |
| Kiltenanlea Parish Church and its community, Clonlara, Co. Clare, 1782-1992 | Bourke, Fred | Monograph or Collective Volume | Clonlara Development Association | 1992 |
| Kiltennel Chapel and Graveyard | Ivers, Bobby | Article in Journal | | 2024 |
| Kiltennel Church, Gorey, Co. Wexford | Spencer, Kevin | Article in Journal | | 1988 |
| Kiltoom church and graveyard | Ryan, Hazel A. | Article in Journal | | 1998 |
| King Guaire and Bishop Cellach | Knox, H. T. (Hubert Thomas) | Article in Journal | | 1902 |
| Kings, chronicles, and genealogies : reconstructing medieval Celtic dynasties | Thornton, David E. | Article in Book | | 1997 |
| Kings, the kingship of Leinster and the regnal poems of laídshenchas Laigen : a reflection of dynastic politics in Leinster, 650-1150 | Bhreathnach, Edel | Article in Book | | 2000 |
| Kingston College : Mitchelstown, County Cork, 1761-2011 | St Leger, Alicia | Monograph or Collective Volume | Kingston Charity Trust | 2011 |
| Kingstown Congregational Church | ffeary-Smyrl, Steven | Article in Journal | | 1993 |
| Kingstown Congregational Church | ffeary-Smyrl, Steven | Article in Journal | | 1994 |
| Kinsale to Benburb - a valuable breathing space in Irish history | Olden, Michael | Article in Book | | 1971 |
| Kitty Lardner. A radio interview | Monaghan, D. | Article in Journal | | 1996 |
| Knock - A sacred place in the west of Ireland where heaven and earth meet | Quinn, Joseph | Article in Book | | 2012 |
| Knock Methodist Church : 100 years. 1870-1970 | Connell, Noel | Monograph or Collective Volume | E. Hoggett Ltd | 1969 |
| Knowledge management in monastic communities of the medieval Irish Celtic church | McGrath, Paul | Article in Journal | | 2007 |
| Krone, Hof und Adel in den Ländern der Stuart Dynastie im frühen 17. Jahrhundert | Asch, Ronald G. | Article in Journal | | 1989 |
| Kynoch - Arklow Ltd - 1895 to 1918 | Cannon, Anthony | Article in Journal | | 2010 |
| L'architecture religieuse en France à l'époque gothique | Lasteyrie, R. de | Monograph or Collective Volume | [s.n.] | 1927 |
| L'architecture religieuse en France à l'époque romane : ses origines, son développement | Lasteyrie, R. de | Monograph or Collective Volume | [s.n.] | 1929 |
| L'auteur de al 'Visio Tnugdali' | Garrigues, Marie-Odile | Article in Journal | | 1987 |
| L'éternité qui passe. L'odyssée monastique de saint Brandan | Bernard, Marie-Benoît | Article in Journal | | 2007 |
| L'hagiographie franconienne dans quelques publications récentes | Coens, Maurice | Article in Journal | | 1953 |
| L'rlanda e gli irlandesi nell'alto medioevo | Lapidge, Michael | Article in Book | | 2010 |
| La 'vita Amandi preima' et les fondations monastiques de S. Amand | Moreau, E. de | Article in Journal | | 1949 |
| La bibliothèque du Collège des Irlandais et son fonds de livres ancien | Caillet, Maurice | Article in Journal | | 1991 |
| La cuestión de Irlanda y la vascongada | Goitia, Francisco | Monograph or Collective Volume | [s.n.] | 1891 |
| La diocesi di Armagh e l'arcivescovo Fiorentino Ottaviano del Palagio, 1480-1513, incluso un regesto del suo registro arcivescovile [The diocese of Armagh and the Florentine archbishop Octavian de Palatio, 1480-1513, including a calendar of his archiepiscopal register] | Sughi, Mario | Thesis | | 1996 |
| La expedición francesa a la bahía de Bantry, Irlanda, 1796 | Bartlett, Thomas | Article in Book | | 2008 |
| La figure de Berkeley dans la pensée de Voltaire | Charles, Sébastien | Article in Journal | | 2001 |
| La invasión de los "almujuces" : un posible tema mítico de origen celta en la Primera Crónica General de Alfonso X el Sabio | González García, Francisco Javier | Article in Journal | | 2001 |
| La politique au théâtre: nouvelles approches en Irlande | Dumay, Émilie-Jean | Article in Journal | | 2006 |
| La Politique audiovisuelle en Irlande et au Canada face à l'impérialisme culturel américain | Slaby, Alexandra | Article in Journal | | 2007 |
| La toponomastica antica della regione abruzzese e le congruenze onomastiche italo-balcaniche | Silvestri, Domenico | Article in Book | | 1982 |
| La trasmissione e rielaborazione dell'esegesi Patristica nella letterature Ibernica delle origini | Castaldi, Lucia | Article in Book | | 2010 |
| Ladychapel, 1863-2013 | Edwards, Rita | Monograph or Collective Volume | Maynooth Local History Group | 2013 |
| Lambeg churchyard, Lisburn, Co. Antrim. Inscriptions on old tombstones (1627-1837) and on those of special interest up to the present day, with notes | Cassidy, William | Monograph or Collective Volume | [Lambeg Parish Church] | 1937 |
| Land of my fathers : 2000 years of Welsh history | Evans, Gwynfor ; Garlick, K. | Monograph or Collective Volume | NA | 1992 |
| Land-changing Feats in Tochmarc Étaíne and the dindshenchas of Ráth Ésa | McMullen, A.Joseph | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Landscape of spires | Brewer, John D.,Keane, Margaret C.,Livingstone, David N. | Article in Book | | 2006 |
| Lanfranc and the Irish church | Gwynn, Aubrey | Article in Journal | | 1941 |
| Laser scanning of the inscribed Hiberno-Romanesque arch at Monaincha, Co. Tipperary, Ireland | Murphy, Orla | Article in Book | | 2011 |
| Late Bronze Age Casting Debris and other base metal finds from Haughey's Fort | Brandherm, Dirk | Article in Journal | | 2014 |
| Late medieval Brugh na Bóinne, 1142-1541 | Kenny, Gillian | Article in Book | | 2008 |
| Late medieval friaries in Sligo : history and architecture | McDermott, Yvonne | Article in Book | | 2024 |
| Late scholastic ogham inscriptions from Kilkenny | De hÓir, Siobhán | Article in Book | | 1998 |
| Late twelfth-century church construction : evidence of parish formation? | Ní Ghabhláin, Helen | Article in Book | | 2006 |
| Latin clasico, Latin medieval y Latin humanistico en los documentos de estudiantes Irlandeses y Ingleses de la Universidad de Salamanca en el siglo XVI | Closa Farres, Josep | Article in Journal | | 1977 |
| Lattice-works, open and closed : some reflections on diocesan archives | Silke, John J. | Article in Journal | | 1990 |
| Laudabiliter in medieval diplomacy and propaganda | Watt, J. A. | Article in Journal | | 1957 |
| Laudabiliter in medieval diplomacy and propaganda | Watt, J. A. | Article in Journal | | 1957 |
| Laurence O'Connor, a Meath schoolmaster | Brady, John, d.1963 | Article in Journal | | 1937 |
| Laurence O'Toole - the lost leader | Tracy, Frank | Article in Journal | | 2006 |
| Laurence Richardson, O.P., bishop of Kilmore, 1747-53 | Fenning, Hugh | Article in Journal | | 1968 |
| Law and the disestablished Church of Ireland: fifty years of accelerating change | Colton, Paul | Article in Book | | 2019 |
| Lawrence O'Connor : a Meath schoolmaster | Brady, John, d.1963 | Article in Journal | | 1937 |
| Lay Catholicism and religious policy in Cromwellian Ireland | Cunningham, John, 1984- | Article in Journal | | 2013 |
| Lay female piety and church patronage in late medieval Ireland | Lyons, Mary Ann | Article in Book | | 2002 |
| Le commentaire inédit de Jean Scot Érigène au mètre ix du livre iii du 'De consolatione philosophiae de Boèce | Silvestre, Hubert | Article in Journal | | 1952 |
| Le Concile Vatican II: étape essentielle dans le processus d'ouverture de l'Eglise catholique d'Irlande | Beaugé de La Roque, Pauline | Article in Journal | | 2013 |
| Le couverture des “Troubles” en Ulster par la télévision française | Deutsch, Richard | Article in Journal | | 1995 |
| Le long cheminement de la mémoire collective irlandaise: 'A Long, Long Way' de Sebastian Barry (2005) | Mikowski, Sylvie
| Article in Journal | | 2011 |
| Le nom celtique du canton en Gaule et en Grande Bretagne | Quentel, Paul | Article in Journal | | 1973 |
| Le problème de Pélage | De Plinval, G. | Article in Journal | | 1939 |
| Leabhair urnaithe an ochtú haois déag | Ó Súilleabháin, Pádraig | Article in Journal | | 1965 |
| Leap Parochial Hall : the first fifty years - a potted history | O'Donovan, John | Article in Journal | | 2014 |
| Learning from the past | Maher, Michael | Article in Book | | 1981 |
| Lease of the Friary of Crevalea (Dromahaire) in County Leitrim to Owen Wynne, 1 April 1658 | Millett, Benignus | Article in Journal | | 1999 |
| Leathchéád bliain de ghlórtha Gaeltachta: Cartlann RTÉ Raidió na Gaeltachta | de Mórdha, Dáithí | Article in Journal | | 2022 |
| Leathchéad bliain de ghlórtha Gaeltachta: Cartlann RTÉ Raidió na Gaeltachta. | de Mórdha, Dáithí | Article in Journal | | 2022 |
| Lebor na hUidre and Dindshenchas Érenn | Ó hUiginn, Ruairí | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Lecky and the Irish university question | McCartney, Donal | Article in Journal | | 1967 |
| Lecture on the history of Ardagh | McNamee, James Joseph | Article in Journal | | 1940 |
| Legacy’s legacy : lessons for the Stormont House Agreement’s Oral History Archive | Side, Katherine | Article in Journal | | 2017 |
| Legacy’s legacy : lessons for the Stormont House agreement’s oral history archive | Side, Katherine | Article in Journal | | 2017 |
| Leighlin diocese : its ancient boundaries and divisions | O'Toole, Edward | Monograph or Collective Volume | St Mary's College, Knockbeg | 1936 |
| Leinster states and kings in Christian times | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1939 |
| Leon an Iarthair : aisti ar Sheán Mac Héill, Ardeaspag Thuama 1834-1881 | | Monograph or Collective Volume | Clóchomhar | 1983 |
| Les chrétientés celtiques | Loyer, Olivier | Monograph or Collective Volume | Presses universitaires | 1965 |
| Les chrétientés celtiques | Gougaud, Louis | Monograph or Collective Volume | | 1911 |
| Les débuts de l'art cistercien en Irlande d'après les vestiges des abbayes de Mellifont (Louth) et de Baltinglass (WIcklow) | Beuer-Szlechter, H. V. | Article in Journal | | 1970 |
| Les diocèses d'Irlande jusqu'au XVe siècle | Millett, Benignus | Article in Journal | | 1985 |
| Les eglises de Belfast pendant la second guerre mondiale | Goldring, Maurice | Article in Journal | | 1991 |
| Les influences irlandaises sur l'architecture religieuse bretonne du haut moyen âge à l'époque romane : mythe ou réalité? | Guigon, Philippe | Article in Book | | 1994 |
| Les premiers ermitages et monasteres en Irlande, 400-700 | Herity, Michael | Article in Journal | | 1993 |
| Les saintes irlandais hors d'Irlande, étudiés dans le culte et dans la dévotion traditionelle | Gougaud, Louis | Monograph or Collective Volume | | 1936 |
| Letter from John Sloane relating to the treatment of memorials, 'Irish Builder', 15th October 1878 | Sloane, John, fl. 1878 | Article in Book | | 2000 |
| Letter from William George Black relating to the treatment of memorials, 'Irish Builder', 1st October 1878 | Black, William George, fl. 1878 | Article in Book | | 2000 |
| Letter of Pope Innocent VIII, 4 December 1488 | Anonymous | Article in Book | | 1991 |
| Letters of a penal priest | | Article in Journal | | 1942 |
| Letters on Armagh parish two centuries ago | Ó Fiaich, Tomás | Article in Book | | 2013 |
| Lewis Prytherch's manuscript | | Article in Journal | | 1945 |
| Libelli et commentarii aliorum : the Hibernensis and the Breton bishops | Flechner, Roy | Article in Book | | 2008 |
| Librán as monastic archetype | Ritari, Katja | Article in Book | | 2015 |
| Life in the Church of Ireland, 1600-1800 | Wyse Jackson, Robert | Monograph or Collective Volume | Ballinakella Press | 2018 |
| Life of Blessed Oliver Plunkett, archbishop of Armagh (1625-1681) | Stokes, John F. B. | Monograph or Collective Volume | Catholic Truth Society | 1954 |
| Life of St Finbarr : founder and patron of the city and diocese of Cork | O'Brien, C. M. | Monograph or Collective Volume | Killarney Printing Works | 1985 |
| Life of St Lawrence O'Toole, archbishop of Dublin, 1128-1180 | Legris, Albert | Monograph or Collective Volume | Catholic Truth Society | 1914 |
| Life on-air : talk radio and popular culture in Ireland | O'Neil, Finola Doyle | Article in Book | | 2013 |
| Light from the bridge : a record of the priests, sisters & brothers of our parish of Rochfortbridge, barony of Fartullagh, diocese of Meath | Wright, Kathleen | Monograph or Collective Volume | Parish of Rochfortbridge | 2003 |
| Light on the past : story of St Mary's Parish, Limerick | Connellan, Brendan | Monograph or Collective Volume | St Mary's Parish, Limerick | 2021 |
| Lilcach: the origins and organisation of an early medieval monastery | Leigh, JoannaÓ Drisceoil, Cóilín | Article in Journal | | 2017 |
| Limerick : its history and antiquities, ecclesiastical, civil and military | Lenihan, Maurice | Monograph or Collective Volume | | 1866 |
| Limerick and south-west Ireland : medieval art and architecture | | Monograph or Collective Volume | Maney for the British Archaeological Association | 2011 |
| Limerick cathedral registers 1826 to 1842: I|Limerick cathedral registers 1826 to 1842: II|Limerick cathedral registers 1826 to 1842: III|Limerick cathedral registers 1826 to 1842: IV | Manning, Peter FIGRS | Article in Journal | | 2019 |
| Limerick, Killaloe, and Kells, 1194-1250 | | Article in Journal | | 1977 |
| Links with the past | Marks, Bernadette | Article in Journal | | 2013 |
| Lintels from lasers: copying the crucifixion stone-carving at Maghera Old Church, County Londonderry | Fry, Malcolm F.Martin, Alan H. | Article in Journal | | 2000 |
| Liosta deoisí ón 17ú céad | Ó Cíobháin, Breandán | Article in Journal | | 1977 |
| Lisburn Cathedral and its past rectors | Carmody, W. P., Rev. | Monograph or Collective Volume | R. Carswell & Son | 1923 |
| Lisburn's rich church heritage : churches and places of worship in the Lisburn city area | Kelly, John Andrew | Monograph or Collective Volume | Impression Print and Design | 2009 |
| Lismore and Cashel : reflections on the beginnings of Romanesque architecture in Munster | O'Keeffe, Tadhg | Article in Journal | | 1994 |
| Lismore and Cashel : reflections on the beginnings of Romanesque architecture in Munster | O'Keeffe, Tadhg | Article in Journal | | 1994 |
| List of ancient churches, graveyards, castles, wells etc. shown on a map of co. Wexford Ordnance Survey 1840 | Ua Dubhghaill, Seumas | Article in Journal | | 1925 |
| List of documents transferred from Armagh Diocesan Registry to the Public Record Office, Dublin | | Article in Journal | | 1915 |
| Listing of monastic possessions in Waterford, c.1540 | Nolan, Tom | Article in Journal | | 1984 |
| Little-known drawings of Glendalough, c.1777-1850 | Harbison, Peter | Article in Book | | 2011 |
| Liturgy and music in the medieval cathedral | Fletcher, Alan J. | Article in Book | | 2009 |
| Living stones : a historical survey of the churches of the dioceses of Derry and Raphoe | Crooks, D. W. T. | Monograph or Collective Volume | The author | 2001 |
| Living with a saint: monastic identity, c ommunity, and the ideal of asceticism in the life of an Irish saint | Auslander, Diane Peters | Article in Book | | 2009 |
| Living with the church in early-medieval Ireland, AD 400-1100 : archaeological perspectives on the sacred and profane | Harney, Lorcan | Thesis | | |
| Locating "Mag itir dá glais": a church site in Machae | Ó Mainnín, Mícheál B. | Article in Journal | | 2010 |
| Locating female saints and their foundations in the early medieval Irish martyrologies | Johnston, Elva | Article in Book | | 2023 |
| Locating Ireland in the fantastic fiction of Lord Dunsany | Scott, Tania | Thesis | | |
| London newsbooks on the storm of Drogheda | Gogarty, Thomas | Article in Journal | | 1911 |
| Longford priories and their manuscripts : All Saints and Abbeyderg | Ó Riain, Pádraig | Article in Book | | 2010 |
| Looking for medieval female religious in Britain and Ireland : sources, methodologies and pittfalls | Curran, Kimm | Article in Book | | 2018 |
| Looking out at Nelson | Devally, Liam | Article in Journal | | 2004 |
| Lord Granard marries Beatrice Mills | MacNerney, James | Article in Journal | | 2008 |
| Lord Inchiquin and the Munster clergy, 1643-9 | Little, Patrick | Article in Book | Four Courts Press | 2025 |
| Lord Iveagh and other Irish officers, students at the Collège des Grassins in Paris, from 1684 to 1710 | Boyle, Patrick, b.1849 | Article in Journal | | 1901 |
| Loscadh ag an Stáca? | Hastings, CatríonaÓ Ciosáin, Éamon | Article in Journal | | 1993 |
| Lough Carra, Co. Mayo. Part 1 (The prehistoric settlement); Part 2 (The medieval and post-medieval settlement) | White, Fiona | Article in Journal | | 2011 |
| Loughgall: a plantation parish | Reilly, Pat | Monograph or Collective Volume | Trimprint | 1995 |
| Lurgan Parish, Virginia: a parish history | Kingston, Robert | Monograph or Collective Volume | [Lurgan parish, Virginia] | 1988 |
| Macnamara's Irish colony and the United States taking of California in 1846 | Fox, John | Monograph or Collective Volume | McFarland | 2000 |
| Mael Muire Ua Dúnáin (1040-1117), reformer | Ó Corráin, Donnchadh | Article in Book | | 1983 |
| Magazine Fort to be restored | Ó Snodaigh, Aengus | Article in Journal | | 2022 |
| Magh Nuadhat agus an Athbheochaint | Ó Floinn, D. | Article in Journal | | 1945 |
| Magheragall parish church. Centenary celebration, June 6th and 7th, 1931 | | Monograph or Collective Volume | Herald Office (printer) | 1931 |
| Mainistir na Tríonóide ró-naofa, Baile Átha Cliath sa 14ú céad | Mac Giolla Phádraig, Brian | Article in Journal | | 1960 |
| Máiréad Ní Ghráda, 1896-1971 : drámadóir - craoltóir - gearr - scéalaí, comóradh Mháiréad Ní Ghráda, Cill Mháille, Co. an Chláir, 14-15 Meitheamh 1997 | | Monograph or Collective Volume | Comóradh Mháiréad Ní Ghrada | 1997 |
| Majestic shrines and graceful sanctuaries : the church architecture of Patrick Byrne, 1783-1864 | Grimes, Brendan | Monograph or Collective Volume | Irish Academic | 2009 |
| Major ecclesiastical libraries : from Reformation to Civil War | Barr, C. B. L.Selwyn, David | Article in Book | | 2006 |
| Making Christian landscapes in Atlantic Europe : conversion and consolidation in the early Middle Ages | | Monograph or Collective Volume | Cork University Press | 2016 |
| Making the There Here and the Then Now: Place and Positioning in the Metrical Dindshenchas | Downey, Clodagh | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Mallets and clubs: Victorian pastimes from the 'Big House' | O'Hare, Patricia | Article in Journal | | 2019 |
| Mallow Church of Ireland parish records | Sheehan, Deidre | Article in Journal | | 1989 |
| Mallow parochial records | Sheehan, Deidre | Article in Journal | | 1988 |
| Mallow Work House Altar | Crowley, Seamus | Article in Journal | | 2015 |
| Malone, Belfast : the early history of a suburb | Carleton, T. | Article in Journal | | 1978 |
| Managing midwives in Ireland: from ecclesiastical regulation to state registration c. 1630-1918 | Gorey, Philomena | Thesis | | 2014 |
| Manorhamilton parish church 1783-1983 : glimpses of our history | Anonymous | Monograph or Collective Volume | [s.n.] | 1983 |
| Manx church origins | Dugdale, D. S. | Monograph or Collective Volume | Llanerch | 1998 |
| Manx kingship in its Irish sea setting, 1187-1229 : King Rognvaldr and the Crovan dynasty | McDonald, Russell Andrew | Monograph or Collective Volume | Four Courts | 2007 |
| Maoldoid of Muckno | Ó Dufaigh, Seosamh | Article in Journal | | 2011 |
| Map of monastic Ireland. | | Monograph or Collective Volume | | 1964 |
| Mapping the light fantastic at Newgrange. Shedding new light on the solar illumination in the burial chamber on winter solstice | Breen, ClaireGargan, SinéadLalor, JohnPrendergast, FrankTuffy, Clare | Article in Journal | | 2021 |
| Marconi : the Irish connection | Sexton, Michael | Monograph or Collective Volume | Four Courts | 2005 |
| Marconi's Irish wireless station and the OTHER American connection | Bracken, Gerry | Article in Journal | | 2008 |
| Marginal figures? Quasi-religious women in medieval Ireland | Ó Clabaigh, Colmán | Article in Book | | 2023 |
| Marginalia in Bishop Downham's 'description of the diocese of Derry' | | Article in Journal | | 1943 |
| Marian Finucane : the Saturday interviews, 2005-2011 | Finucane, Marian | Monograph or Collective Volume | Orpen Press | 2011 |
| Marianus Scotus : scribe and monastic founder | Dilworth, Mark, 1924-2004 | Article in Journal | | 1965 |
| Marino at 100: a garden suburb of lasting influence | Brady, JosephMcManus, Ruth | Article in Journal | | 2018 |
| Marriage and the ecclesiastical courts in mid-fifteenth-century Ireland | Booker, Sparky | Article in Book | | 2019 |
| Marriage in Ireland : church and state | Conway, W. | Article in Journal | | 1946 |
| Mary Aikenhead (1787-1858), servant of the poor : founder of the Religious Sisters of Charity | Blake, Donal | Monograph or Collective Volume | Caritas | 2001 |
| Mass-houses and meeting houses: Catholic and Presbyterian church design in eighteenth-century Ireland | McCormick, Finbar | Article in Book | Four Courts Press | 2018 |
| Material identities : fixing ethnicity in the Irish borderlands | Donnan, Hastings | Article in Journal | | 2005 |
| Material relating to Ireland in the Albani collection of MSS in the Vatican archives | Giblin, Cathaldus | Article in Journal | | 1964 |
| Matthew Gibney (1837-1925), bishop of Perth, Western Australia | Mitchell, Kilian J. | Article in Journal | | 2001 |
| Maverick; a dissident view of broadcasting today | Quinn, Bob | Monograph or Collective Volume | Brandon | 2001 |
| Maynooth a hundred years ago | Anonymous | Article in Journal | | 1940 |
| Maynooth and the heralds of darkness | McLaughlin, Eve | Article in Journal | | 1953 |
| Maynooth and the missions | Meehan, Denis | Article in Journal | | 1945 |
| Maynooth castle | Kavanagh, J. W. | Article in Journal | | 1944 |
| Maynooth college archives | Corish, Patrick J. | Article in Journal | | 1993 |
| Maynooth college buildings : some historical difficulties | Meehan, Denis | Article in Journal | | 1947 |
| Maynooth parish church centenary (1840-1940), notes on the early history of the parish | MacSweeney, Michael T. | Article in Journal | | 1940 |
| Maynooth students and ordinations 1795-1895 : index | Hamill, Patrick J. | Article in Journal | | 1967 |
| Maynooth students and ordinations, 1795-1893 : index | | Article in Journal | | 1968 |
| Maynooth students, 1795-1895 : index | Hamell, Patrick J. | Article in Journal | | 1968 |
| Maynooth's first professor of scripture | Ó Súilleabháin, Pádraig | Article in Journal | | 1965 |
| Maynooth, 1895-1945 | O'Doherty, J. F. | Article in Journal | | 1945 |
| Meath history and society : Interdisciplinary essays on the history of an Irish county | | Monograph or Collective Volume | Geography Publications | 2015 |
| Media audiences in Ireland : power and cultural identity | | Monograph or Collective Volume | University College Dublin Press | 1997 |
| Media control in Ireland, 1923-83 | Woodman, Kieran | Monograph or Collective Volume | Southern Illinois University Press | 1985 |
| Mediating the Word : Language and Dialects in the British and Irish Reformations | Heal, Felicity | Article in Journal | | 2005 |
| Medical Material in the Three Recensions of the Dindshenchas | de Vries, Ranke | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| Medieval and monastic Derry : sixth century to 1600 | Lacey, Brian | Monograph or Collective Volume | Four Courts | 2013 |
| Medieval Britain in 1978, 2 : post-Conquest | Cherry, J. | Article in Journal | | 1979 |
| Medieval burial and pilgrimage within the landscape of Glendalough : the evidence of the crosses and cross-slabs | Harney, Lorcan | Article in Book | | 2011 |
| Medieval church sites of north Dublin : a heritage trail | McMahon, Mary | Monograph or Collective Volume | Office of Public Works | 1991 |
| Medieval churches | Downey, LiamO'Sullivan, Muiris | Article in Journal | | 2017 |
| Medieval collections of ecclesiastical and devotional materials : Leabhar Breac, Liber Flavus Fergusiorum and The Book of Fenagh | Herbert, Máire | Article in Book | | 2009 |
| Medieval Dominicans and the Irish language | Kearns, Conleth | Article in Journal | | 1960 |
| Medieval Dublin XVIII | | Monograph or Collective Volume | Four Courts | 2020 |
| Medieval ecclesiastical buildings in Ireland, 1789-1915 : building on the past | NicGhabhann, Niamh | Monograph or Collective Volume | Four Courts | 2015 |
| Medieval ecclesiastical metalwork from the diocese of Clogher | Bourke, Cormac | Article in Book | | 2005 |
| Medieval fonts | Pike, H. K. J. | Article in Journal | | 1989 |
| Medieval fonts in Kildare | Pike, H. K. J. | Article in Journal | | 1987 |
| Medieval fonts of Ireland | Pike, H. K. J. | Monograph or Collective Volume | The author | 1989 |
| Medieval Fore, County Westmeath | Masterson, Rory | Monograph or Collective Volume | Four Courts | 2014 |
| Medieval improvements: the extension of Moyne friary's tower | McDermott, Yvonne | Article in Journal | | 2013 |
| Medieval Ireland in Cistercian records | Hennig, John | Article in Journal | | 1950 |
| Medieval Irish buildings, 1100-1600 | O'Keeffe, Tadhg | Monograph or Collective Volume | Four Courts | 2015 |
| Medieval Iveragh : kingdoms and dynasties | MacCotter, PaulSheehan , John | Article in Book | | 2009 |
| Medieval Leinster dynasties and families : three topographical notes | Nicholls, K. W. (Kenneth W.) | Article in Journal | | 1986 |
| Medieval Mayo : churches and abbeys | Harbison, Peter, 1939-2023 | Monograph or Collective Volume | Mayo County Council | 2023 |
| Medieval monastic occupation and post-medieval military activity at Clare Abbey, Co. Clare | Hull, GrahamJoubert, Sebastien | Article in Journal | | 2008 |
| Medieval monastic occupation and post-medieval military activity at Clare Abbey, Co. Clare | Hull, Graham,Jouvert, Sébastien | Article in Book | | 2008 |
| Medieval Navan | Cantwell, Ethna | Article in Journal | | 2011 |
| Medieval parish churches in Muintir Eolais, south County Leitrim | Scully, Siobhán | Article in Book | | 2019 |
| Medieval parish churches of north east Clare | O'Reilly, Fiona | Article in Journal | | 1997 |
| Medieval record sources | Connolly, Philomena | Monograph or Collective Volume | Four Courts | 2002 |
| Medieval state-building and the churches of the Celtic fringe | Jones, W. R. | Article in Journal | | 1974 |
| Medieval sub-kingdoms of Brega : the kingships of Calatrium Dessi Breg, , Mugdornae Breg and Uí Maic Uais Breg | Bhreathnach, Edel | Article in Book | | 2004 |
| Meelick Friary's hidden history | O'Keeffe, Tadhg | Article in Journal | | 2019 |
| Mellifont abbey : architecture and history | Stalley, Roger | Article in Book | | 2023 |
| Mellifont Abbey : some observations on its architectural history | Stalley, Roger | Article in Journal | | 1975 |
| Mellifont abbey : some observations on its architectural history | Stalley, Roger | Article in Journal | | 1975 |
| Mellifont Abbey in the County of Louth : its rise and downfall | B., K. F.
| Monograph or Collective Volume | Hodges Figgis | 1890 |
| Members' column. Old Mayglass | Browne, Kathleen A. | Article in Journal | | 1921 |
| Memoir of the Armagh Cathedral, with an account of the ancient city | Rogers, Edward | Monograph or Collective Volume | W. and G. Baird [printer] | 1882 |
| Memoir of the Church of St. Duilech in the Diocese of Dublin : commonly called 'Saint Doulagh's' containing a paper read before the Royal Irish Acadamy on Monday, April 11, 1859 | Reeves, William | Monograph or Collective Volume | Dublin University Press | 1859 |
| Memorial plaques and windows in Blarney and District churches : 5. St Patrick's Catholic Church, Whitechurch | Gabriel, Brian | Article in Journal | | 2015 |
| Memorial plaques and windows in Blarney and District churches : 6. St. Peter's Church of Ireland, Carrigrohane | Synnott, Chris | Article in Journal | | 2015 |
| Memorial plaques and windows in Blarney and district churches : St Mary's Church, Waterloo | Gabriel, Brian | Article in Journal | | 2011 |
| Memorial plaques and windows in Blarney and district churches : St Senan's Church, Cloghroe | Synnott, Chris | Article in Journal | | 2011 |
| Memorials of Whitechurch graveyard and church | Walsh, Joe | Article in Journal | | 2015 |
| Memorials of Youghal, ecclesiastical and civil | Hayman, Rev. Canon | Monograph or Collective Volume | John Lindsay | 1879 |
| Memories of development: My time in Irish theatre and broadcasting | Jaquarello, Roland | Monograph or Collective Volume | The Liffey Press | 2016 |
| Memories of loyalty - St. Bridget's Glassdrummond | Kieran, Tony | Article in Journal | | 1990 |
| Memory and belonging : Irish writers, radio, and the nation | Mahony, Christina Hunt | Article in Journal | | 2001 |
| Memory and Imagination mediated for a 'mass' audience | Doolan, Lelia | Article in Book | | 2023 |
| Memory, belief and identity : remembering the dead on Iniscealtra, Co. Clare | O'Leary, Clíodhna | Article in Book | | 2015 |
| Mendicant cloisters in Munster | O'Donoghue, Aisling | Article in Book | | 2011 |
| Mensa in Deserto: reconciling Jonas's Life of Columbanus with recent archaeological discoveries at Annegray and Luxeuil | Bully, SébastienPicard, Jean-Michel | Article in Book | | 2016 |
| Merveilleux épanouissement de l'école scotiste au XVIIe siècle | De Caylus, D. | Article in Journal | | 1912 |
| Mesolithic middens - from famine to feasting | Woodman, Peter | Article in Journal | | 2001 |
| Methodist centenary church, St. Stephen's Green, Dublin: a commemorative record | Bradshaw, D. B. (David Bigham) | Monograph or Collective Volume | | 1943 |
| Methodist records in Ireland | Kelly, Marion | Article in Book | | 1992 |
| Metropolitan ambitions and politics : Kells-Mellifont and Man & the Isles | Beuermann, Ian | Article in Journal | | 2002 |
| Michael Cardinal Logue 1840-1924, part 2 | Walsh, Aisling | Article in Journal | | 1999 |
| Michael Cardinal Logue 1840-1924, Part IV - 'A Catholic ethos for a Catholic society' | Walsh, Aisling | Article in Journal | | 2005 |
| Michael Hewetson, M.A., Archdeacon of Kildare for a day (St. Peter's, 1686) | Hewetson, John | Article in Journal | | 1911 |
| Michael Jones and the survival of the Church of Ireland, 1647-9 | Little, Patrick | Article in Journal | | 2019 |
| Michael MacDonogh, O.P., bishop of Kilmore, 1728-46 | Fenning, Hugh | Article in Journal | | 1966 |
| Michael O'Hehir : my life and times | O'Hehir, Michael | Monograph or Collective Volume | Blackwater Press/RTE | 1996 |
| Michael Peter MacMahon : bishop of Killaloe, June 5, 1765 - Februray 20, 1807 | Clancy, J. J. | Article in Journal | | 1940 |
| Michael T. Hastings (1876-1972), Westport and Leenane | McGinley, Michael | Article in Journal | | 2011 |
| Michael, Cardinal Logue, 1840-1924 | Walsh, Aisling | Thesis | | 1996 |
| Mid-twentieth-century architectonics of Catholic Dublin | Rowley, Ellen | Article in Book | | 2020 |
| Middle ages | Stalley, Roger | Article in Book | | 2000 |
| Military background to the Lutheran church in Marlborough Street, Dublin | Ferguson, Kenneth | Article in Journal | | 1998 |
| Minor scholastics of Irish origin up to 1500 | McEvoy, James | Article in Book | | 2009 |
| Minority languages, nationalism and broadcasting : the British and Irish examples | Cormack, M. | Article in Journal | | 2000 |
| Minutes of the vestry for the parish of Dundalk, 1803-6 | Anonymous | Article in Journal | | 1938 |
| Miracles in the lives of the Irish saints | Ó Briain, F. | Article in Journal | | 1945 |
| Miscellanea : Interesting feature at Temple Muireguidan | McCloskey, Morgan | Article in Journal | | 2001 |
| Miscellanea. 4. A Catholic map of Ireland, 1859 | Herity, Michael | Article in Journal | | 2012 |
| Miscellanea. An early reference to St Olave's Church in Dublin | Manning, Conleth | Article in Journal | | 2009 |
| Miscellanea. Kilfenora Cathedral | O'Neill, Michael | Article in Journal | | 2013 |
| Miscellanea. Rediscovery at Killashee | McCabe, Brian | Article in Journal | | 2009 |
| Miscellanea. The Bann Bell-shrine crest : a note on its provenance and inspiration | Murray, GriffinÓ Riain, Pádraig | Article in Journal | | 2006 |
| Miscellaneous documents : 2, 1625-40 | | Article in Journal | | 1949 |
| Miscellaneous papers | | Article in Journal | | 1951 |
| Misericords : with special reference to those in St. Mary's Cathedral, Limerick | Haydn, J. A. | Monograph or Collective Volume | McKern's Printers | [1940?] |
| Mission and monasticism in the Confessio of Patrick | Herren, Michael | Article in Book | | 1989 |
| Missions and missionaries | Conlan, Patrick, 1940- | Article in Book | | 2009 |
| Mister, are you a priest? : jottings by Bishop Edward Daly | Daly, Edward | Monograph or Collective Volume | Four Courts | 2000 |
| Mit dem hl. Virgil durch die Jahrhunderte der Kunst | Locicnik, Raimund A. | Article in Book | | 1985 |
| Mixed education and the synod of Ulster, 1831-40 | Ó Raifeartaigh, T. | Article in Journal | | 1955 |
| Mochta of Louth and the reworking of Irish history | Cronin, Anthony | Article in Book | | 2021 |
| Moira parish church, 1722-1972 | McCarthy, John | Monograph or Collective Volume | Lithoforme [Printers] | 1973 |
| Moladh na féile: téama i bhfilíocht na scol. | .Breatnach, Pádraig A. | Article in Book | | 1994 |
| Monaghan cathedral | Duffy, Joseph | Monograph or Collective Volume | Eason | 1992 |
| Monasterboice conservation study: selected excerpts | | Article in Journal | | 2010 |
| Monasterevan - Abbey and Parish | Comerford, M., C.C. | Article in Journal | | 1879 |
| Monasteries and society in the British Isles in the later middle ages | | Monograph or Collective Volume | Boydell | 2008 |
| Monastic and cathedral book collections in the late eleventh and twelfth centuries | Webber, Teresa | Article in Book | | 2006 |
| Monastic dissolution in Co. Wexford: social, economic and religious consequences, 1540-1641 | Kavanagh, Deirdre Martina | Thesis | | 1990 |
| Monastic dress and the appearance of sanctity: the evangelists' shoes | Thomas, Colleen M. | Article in Book | | 2017 |
| Monastic ecclesial reforms and its impact on the early development of the Irish churches | Ocampo-Gooding, Sonya | Article in Journal | | 2009 |
| Monastic Europe : medieval communities, landscapes and settlement | | Monograph or Collective Volume | Brepols | 2019 |
| Monastic exiles in Ireland | Fennelly, William | Article in Book | | 2005 |
| Monastic Ireland AD 1100-1700: new directions | Bhreathnach, Edel | Article in Journal | | 2015 |
| Monastic Life in Early Medieval Ireland | Scully, Diarmuid | Chapter in Book | | 2022 |
| Monastic life in the medieval British Isles : essays in honour of Janet Burton | | Monograph or Collective Volume | University of Wales Press | 2018 |
| Monastic property in 17th-century Ireland | Brady, John, d.1963 | Article in Journal | | 1951 |
| Monastic proto-towns and Viking towns - environment | Clarke, H.B. | Article in Book | | 2018 |
| Monastic proto-towns and Viking towns - Placenames | Ó Muraíle, Nollaig | Article in Book | | 2018 |
| Monastic proto-towns and Viking towns - Religion | Swift, Catherine | Article in Book | | 2018 |
| Monastic proto-towns in early medieval Ireland : the evidence of aerial photography, plan analysis and survey | Swan, Leo, 1930-2001 | Article in Book | | 1985 |
| Monastic schools in Ireland and Northumbria before A.D.750 | McNamara, Martin | Article in Journal | | 1990 |
| Monastic sites in ancient Ossory : an archaeological view | Brennan, James | Article in Journal | | 1995 |
| Monastic sites in the West of Ireland | O'Kelly, M. J. (Michael Joseph) | Article in Journal | | 1974 |
| Monastic tenants, Viking raiders and Hiberno-Norse townspeople | Clarke, Howard B.Johnson, Ruth | Article in Book | | 2023 |
| Monastic voyaging and the 'Navigatio' | Wooding, Jonathan M. | Article in Book | | 2000 |
| Monastica et onomastica | Byrne, Francis John, 1934- | Article in Journal | | 1983 |
| Monasticism in Ireland, AD 900-1250 | Bhreathnach, Edel | Monograph or Collective Volume | Four Courts Press | 2024 |
| Monasticon Hibernicum, or, A history of the abbies priories and other religious houses in Ireland | Archdall, Mervyn | Monograph or Collective Volume | | 1786 |
| Monasticon Praemonstratense. 3 vols. | Backmund, Norbert | Monograph or Collective Volume | | 1949 |
| Mönchtum und Busse|Monastic rules and penance | Schnoor, Franziska | Article in Book | | 2018 |
| Money and Irish Catholicism : an intimate history, 1850-1921 | Roddy, Sarah | Monograph or Collective Volume | Cambridge University Press | 2025 |
| Monkstown : a Victorian village | Cannon, Séamus,Cullen, Carole | Monograph or Collective Volume | Blackrock Education Centre | 2014 |
| Monster and monastery : St Kevin's Lives and the expansion of Glendalough | Lacey, Brian | Article in Book | | 2011 |
| Moor Abbey - an early monastic site? | O'Regan, Finbarr | Article in Journal | | 2002 |
| Moravian records for Crossard, County Clare | Power, Rosemary | Article in Journal | | 2013 |
| More on Carlingford churches in 1485 | Gillespie, Raymond | Article in Journal | | 2012 |
| Most Rev. Thomas McDonnell bishop of Killala, Dec. '70 - Jan. '87 : a personal tribute by Rt. Rev. P. Gallagher P.P., V.G. Crossmolina | Gallagher, Patrick | Article in Journal | | 1988 |
| Mother Mary Aikenhead | MacDonagh, Hilary | Article in Journal | | 1958 |
| Mountshannon 1800-1845 | Madden, Gerard | Article in Book | | 1993 |
| Mouthing obscenities, Christological typologies? complexities of meaning at Dysert O'Dea | Ní Ghrádaigh, Jenifer | Article in Book | | 2011 |
| Moyne and Rosserk : ways of being Fransician in the late medieval period | McDermott, Yvonne | Article in Journal | | 2017 |
| Mr Craghead takes communion | Gillespie, Raymond | Article in Book | | 2012 |
| MS material for diocesan and parochial history : report on the collections of sources : 2 | Ó Fiaich, Tomás | Article in Journal | | 1955 |
| MS material for diocesan and parochial history, report on collections of sources : 1 | Representative Church Body, Dublin | Article in Journal | | 1954 |
| Muintir Eolais chalice returns to its roots | | Article in Journal | | 2023 |
| Muircheartach Ó Domhnalláin, easbog Chluain Fearta, 1695-1706 | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1953 |
| Mullabrack : a parish of great antiquity | McHugh, Mary | Monograph or Collective Volume | Trimprint (printer) | 2012 |
| Mullaghbrack | Noel, F. A. | Article in Journal | | 1989 |
| Mulrankin Church of Ireland items | Hemingway, Ken | Article in Journal | | 2007 |
| Murchú's Armagh | Lynn, C. J.McDowell, J. A. | Article in Journal | | 1988 |
| Murder in Tisaxon? ... evidence from a recent archaeological discovery close to the village of Newcastle in east Galway | Fitzpatrick, Martin | Article in Journal | | 2012 |
| Murrisk abbey, Co. Mayo | Leask, H. G. (Harold G.) | Article in Journal | | 1943 |
| Murrisk Friary : a late medieval house of the Augustinian Friars | McDermott, Yvonne | Article in Journal | | 2008 |
| Music and broadcasting | Ó Broin, Eimear | Article in Book | | 1998 |
| Music and broadcasting in Ireland | Pine, Richard | Monograph or Collective Volume | Four Courts | 2005 |
| Music before the Guinness restoration, 1750-1860 | Houston, Kerry | Article in Book | | 2009 |
| Music hall dope and British propaganda? : Cultural identity and early broadcasting in Ireland | McLoone, Martin | Article in Journal | | 2000 |
| Music hall dope and British propaganda? cultural identity and early broadcasting in Ireland | McLoone, Martin | Article in Journal | | 2000 |
| Music in ancient Munster and monastic Cork | Fleischmann, Aloys, 1910-1992Gleeson, Rita | Article in Journal | | 1965 |
| Music in independent Ireland since 1921 | Ryan, Joseph | Article in Book | | 2003 |
| Music in the Church of Ireland | Houston, Kerry | Article in Book | | 2019 |
| My dear Mr McCourt | McCague, Eugene | Monograph or Collective Volume | Gill & Macmillan | 2009 |
| My Foster ancestors in Dublin | Barry, Eleanor | Article in Journal | | 2002 |
| My great-uncle's mathematical conundrums | Farry, Neal | Article in Journal | | 2017 |
| My middle name is lucky | Dunne, Lee | Monograph or Collective Volume | Killynon House Books | 2006 |
| Na paidreacha dúchais | Ó Héalaí, Pádraig | Article in Book | | 1979 |
| Naas: an historical sketch | Comerford, M., P.P. | Article in Journal | | 1883 |
| Naomh Colmcille | Mould, Daphne D. C. Pochin | Article in Journal | | 1963 |
| National identity, classical tradition, christian reform and colonial expansion at the ends of the earth : an analysis of the Swedish and Norwegian peoples in Adam of Bremen's history of the archbishops of Hamburg-Bremen and the Irish in Gerald of Wales's topography of Ireland | Forde, Britt | Thesis | | 2016 |
| National school inspection and the Kildare Place Society | Hayden, Eustace | Article in Journal | | 1957 |
| Navan: the Earl of Essex, Baroness de Ros and the Crown lands of the early nineteenth century | O'Neill, Timothy P.
| Article in Journal | | 2022 |
| Necrologues on R.A.S. Macalister and Stephen Gwynn | Dauphin, Hubert | Article in Journal | | 1950 |
| Negotiating peace : politics, television news and the Northern Ireland peace process | Spencer, Graham | Article in Journal | | 2000 |
| Neither feminist nor flapper : the ecclesiastical construction of the ideal Irish woman | Valiulis, Maryann Gialanella, 1947- | Article in Book | | 1995 |
| Neueste archäologische Untersuchungen im Schottenkloster | Codreanu-Windauer, Silvia | Article in Book | | 2005 |
| New altars for Castlebridge : Church People Newspapers, Saturday 5th November 1898 | Anonymous | Article in Book | | 2005 |
| New church of St Malachy's | Ó Muirí, Réamonn | Article in Book | | 2013 |
| New insights into the church known as St Crispin's Cell and the site of Rathdown Castle, Co. Wicklow | Burbridge, MarieCoyne, FrankDuffy, PaulHarrington, JohnLove, ColinMogensen, Ejvind | Article in Journal | | 2017 |
| New Ireland, new church | Martin, Diarmuid | Article in Journal | | 2011 |
| New light on St. Kilian | Gwynn, Aubrey | Article in Journal | | 1957 |
| New light on the beginnings of Christ Church cathedral, Dublin | Ó Riain-Raedel, Dagmar | Article in Book | | 2019 |
| New Ross = Rosponte = Ros Mhic Treoin : an anthology celebrating 800 years | | Monograph or Collective Volume | Wexford County Council Public Library Service for New Ross Celebrations | 2007 |
| New survey of Clare Island, Vol. 4 : the abbey | | Monograph or Collective Volume | Royal Irish Academy | 2005 |
| New Zealand Catholicism and the Irish issue, 1914-1922 | Sweetman, Rory M. | Article in Book | | 1989 |
| Newman House and University Church | Curran, Constantine Peter | Monograph or Collective Volume | University College | 1953 |
| Newman's university church : a history and guide | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 1997 |
| Newmen's University Church : a history and guide | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 1997 |
| News from Ireland : Catalan, Portuguese and Castilian pamphlets on the Confederate War in Ireland | Morgan, Hiram | Article in Book | | 2013 |
| Nicholas Callan - his work and times | Murphy, Patrick | Article in Journal | | 1964 |
| Nicholas Conaty, bishop of Kilmore, (1865-1886) | Kelly, Gabriel | Article in Journal | | 1987 |
| Nicholas Mac Maol Íosa, archbishop of Armagh (1272-1303) | Gwynn, Aubrey | Article in Book | | 1995 |
| Nicholas Slevin, Maynooth professor (1823-9) in the McCormick Papers, 1815-16 | Ó Súilleabháin, Pádraig | Article in Journal | | 1965 |
| Nicholas Wiseman, ecclesiastical politics and Anglo-Irish relations in the mid nineteenth century | Rafferty, Oliver P. | Article in Journal | | 1993 |
| Nicholas Wiseman, ecclesiastical politics and Anglo-Irish relations in the mid-nineteenth century | Rafferty, Oliver P. | Article in Journal | | 1993 |
| Nineteenth and twentieth century ecclesiastical heraldry in the Archdiocese of Tuam | Bellew, Seamus | Article in Journal | | 2015 |
| Nineteenth-century architectural restorations | O'Neill, Michael | Article in Book | | 2009 |
| Nineteenth-century stained glass in the Church of Ireland diocese of Limerick and Killaloe | Lawrence, David | Article in Journal | | 2007 |
| Nineteenth-century travellers to Early Christian Sites in Co. Kerry | Okasha, Elisabeth | Article in Book | | 2007 |
| Ninety candidates proposed for Irish dioceses, c. 1665 | Millett, Benignus | Article in Journal | | 1955 |
| No lasting city: part of the story of Tuam Sugar, 1934-1986 | Cahill, John | Monograph or Collective Volume | x | 2018 |
| No tigers in Africa : recollections and reflections of 25 years of 'Radharc' | Dunn, Joseph | Monograph or Collective Volume | Columbia University Press | 1986 |
| No words can tell our sorrow. A tribute to the late Cardinal Ó Fiaich | Kearns, Patrick | Article in Journal | | 1990 |
| Nobber : an important early medieval ecclesiastical site | King, Heather | Article in Journal | | 2007 |
| Norman French and English languages in Ireland, 1170-1540 | Cahill, Edward | Article in Journal | | 1938 |
| Norman splendour : Duiske Abbey, Graignamanagh | Carvill, G. | Monograph or Collective Volume | Blackstaff Press | 1979 |
| North Munster studies : essays in commemoration of Monsignor Michael Moloney | | Monograph or Collective Volume | Thomond Archaeological Society | 1967 |
| North Strand Church : a memoir 1838-1938 | Tyndall, Charles | Monograph or Collective Volume | North Strand Church | 1938 |
| Northern Ireland : the afterlife of monastic buildings | Brannon, N. F. (Nick)Hamlin, Ann | Article in Book | | 2003 |
| Northern Ireland and pre-Troubles BBC Television Drama | Hill, Andrew | Article in Journal | | 2006 |
| Northern Ireland and pre-troubles BBC television drama | Hill, Andrew | Article in Journal | | 2006 |
| Northern Ireland and the Cold War, 1945 to 1972 | Goss, Stephen J. | Thesis | | |
| Northern view : Inishowen community radio | Doherty, JimMcBride, Jimmy | Article in Book | | 2007 |
| Not well covered. A Romanesque remnant hiding in plain sight in County Kilkenny | Corlett, Chris | Article in Journal | | 2021 |
| Nóta fán triúr príomháid de mhuintir Mhic Mhathghamhna | Ó Maolagáin, Pádraig | Article in Journal | | 1947 |
| Note on the church of St. Michan, Dublin | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Article in Journal | | 1926 |
| Note. St Munchin's and the Bishop's Palace | Hodkinson, Brian | Article in Journal | | 2013 |
| Note: A ghost worrd detected on the seventeenth-century font at St Anne's Church, Shandon, Cork | Hawtree, Richard | Article in Journal | | 2013 |
| Note: All Saints, Drimoleague: clarifications and new discoveries | Butler, Richard J. | Article in Journal | | 2016 |
| Notes & Documents. Ecclesiastical affairs in Armagh in the ninth and tenth centuries | Mac Airt, Seán | Article in Journal | | 2015 |
| Notes and Documents. A community in stone: Launch of 'Funerary Monuments and memorials' by James Stevens Curl, St Patrick's Cathedral, Armagh, 2 November 2013 | Dunstan, Gregory, Dean | Article in Journal | | 2014 |
| Notes and Documents. Launch of 'A People's Church' by Liam Swords, St Nathy's College, Ballaghaderreen, 28 February 2014 | Ó Muraile, Nollaig | Article in Journal | | 2014 |
| Notes and jottings concerning the parish of Charlestown Union in the county of Louth: being an outline of the history of the parishes of Charlestown and Clonkeen with brief references to the parishes of Clonkeehan, Mapastown, Philipstown and Tallanstown, now included in the Union | L'Estrange, Guy W. C., Rev. | Monograph or Collective Volume | 'Printed at the Rectory Press' [for private circulation. Not published] | 1912 |
| Notes and Queries. Some notes on the history of Whitechurch | McCabe, Brian | Article in Journal | | 2019 |
| Notes and records of the ancient religious foundations at Youghal, Co. Cork, and its vicinity | Hayman, Samuel, Rev. | Monograph or Collective Volume | John Lindsay | 1859 |
| Notes d'hagiographie celtique, 48 : Les noms d'Adomnán et de Brendan | Grosjean, Paul | Article in Journal | | 1960 |
| Notes of the history of the diocese of Dromore | Keenan, Patrick | Article in Journal | | 1989 |
| Notes on an uninscribed monument in St Canice's Cathedral, Kilkenny | Hogan, J. | Article in Journal | | 1879 |
| Notes on monastic archaeology and the Annals of Ulster, 650-1050 | MacDonald, Aidan | Article in Book | | 1981 |
| Notes on mural graves found in the foundations of the chancel of St.Brigid's cathedral church, Kildare, in 1891 | Cowell, George Young | Article in Journal | | 1902 |
| Notes on some associated families | Madden, Gerard | Article in Book | | 1993 |
| Notes on some Irish altar-plate | Moran, Patrick | Article in Journal | | 1946 |
| Notes on the ancient churches and castles of Ballybur and Inchihologhan | Hogan, John | Article in Journal | | 1883 |
| Notes on the antiquities of the united parishes of Ballycallan, Kilmangh and Killaloe | Holahan, J., C.C. | Article in Journal | | 1883 |
| Notes on the church plate of Waterford diocese | Warren, C. B. | Article in Journal | | 1967 |
| Notes on the early history of the dioceses of Tuam, Killala and Achonry | Knox, H. T. (Hubert Thomas) | Monograph or Collective Volume | Hodges, Figgis . | 1904 |
| Notes on the history of the Church and Parish of S. Bartholomew | Longworth-Dames, R. S. | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | 1908 |
| Notes on the topography of early monastic Clonmel | Hickey, Elizabeth | Article in Journal | | 1995 |
| Notes respecting the Church of St. Peter, parish of Ballymodan, and County of Cork | | Monograph or Collective Volume | Printed by the Boys of the Door-Step Brigade | 1874 |
| Notes, antiquarian and historical, on the parish of Clane | Sherlock, Canon | Article in Journal | | 1895 |
| Notes. Francis Rawdon, Earl of Moira (1754-1826) | Ferguson, Kenneth | Article in Journal | | 2015 |
| Notes. Some evidence for a possible roiund tower at Noughaval, Co. Clare | Ó Murchadha, Seán (1923-1995) | Article in Journal | | 2017 |
| Notes. The old Methodist Preaching-House in Adare | Spillane, Milo | Article in Journal | | 2008 |
| Notes. The old Methodist Preaching-House in Adare | Spillane, Milo | Article in Journal | | 2008 |
| Notes. The Wesleyan Chapel at the Curragh, 1860 | Ferguson, Kenneth | Article in Journal | | 2021 |
| Notices of ecclesiastical ruins | Healy, William | Article in Journal | | 1879 |
| Notitiae in the Irish Annals | Valante, Mary A. | Article in Journal | | 2006 |
| Nun's Cross church, Co. Wicklow and its treasures, 1817-2017 | Butler, Patricia | Monograph or Collective Volume | Killiskey Select Vestry | 2016 |
| Ó Domhnaill's inauguration, according to Pilib Ó Súilleabháin Bhéarra | Ó Canann, Tomás G. | Article in Journal | | 2007 |
| Ó Riada on Radio | Victory, Gerard | Article in Book | | 1981 |
| O'Connell, Davis and the Colleges Bill | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1947 |
| O'Hanlon of 'The Irish Saints' | Carey, F. P. | Article in Journal | | 1955 |
| Obituary : Liam De Paor - scholar, communicator, broadcaster and populariser | W., P. F. | Article in Journal | | 1998 |
| Obligationes pro annatis diocesis Rossensis. [1432-1533] | | Article in Journal | | 1970 |
| Observations on Saint John's Church, Buttevant | Power, Bill | Article in Journal | | 2003 |
| Occam's Duck : three early medieval cemeteries or ecclesiastical sites? | Baker, Christine | Article in Book | | 2010 |
| Of faith and fatherland : churches and states in Ireland from the Act of Union to the Belfast Agreement, 1800-1998 | Ó Corráin, Daithí | Article in Book | | 2023 |
| Of Saxons, a Viking and Normans : Colmán, Gerald and the monastery of Mayo | Ní Mhaonaigh, Máire | Article in Book | | 2009 |
| Off screen : a memoir | Smith, Sheamus | Monograph or Collective Volume | Gill & Macmillan | 2007 |
| Official opinion on Irish emigration in the later 19th century | Keep, G. R. C. | Article in Journal | | 1954 |
| Oilibhéar Pluincéid | Ó Fiaich, Tomás | Monograph or Collective Volume | Foilseacháin Ábhair Spioradálta | 1976 |
| Old chruches in the parish of Rossinver, county Leitrim | Davies, Oliver | Article in Journal | | 2013 |
| Old church of Ballinacourty, Barony of Dunkellin | Redington, M. | Article in Journal | | 1915 |
| Old church plate of Kilkenny city | Jackson, Robert Wyse | Article in Journal | | 1951 |
| Old church plate of Lismore Diocese | Jackson, Robert Wyse | Article in Journal | | 1955 |
| Old church silver of east Killaloe | Jackson, Robert Wyse | Article in Journal | | 1940 |
| Old churches in county Louth : Drogheda barony | Davies, Oliver | Article in Journal | | 1947 |
| Old churches in the parish of Rossinver, Co. Leitrim | Davies, Oliver | Article in Journal | | 1946 |
| Old English plate : ecclesiastical, decorative and domestic : its makers and marks. | Cripps, W. J. | Monograph or Collective Volume | | 1967 |
| Old Ireland and her monasticism | O'Sullivan, Jeremiah F. | Article in Book | | 1965 |
| Old Ireland, her scribes and scholars | McNally, Robert | Article in Book | | 1965 |
| Old Irish personal names | O'Brien, M. A. (Michael Alphonsus) | Article in Journal | | 1973 |
| Old Kilcullen | Stokes, Margaret | Article in Journal | | 1899 |
| Old Leighlin after Laserian : division and reconciliation | Kenny, Colum | Article in Journal | | 1999 |
| Old St Malachy's | Paterson, T. G. F. | Article in Book | | 2013 |
| Old St Malachy's, 1752-1938 | Paterson, T. G. F.,Ó hÁdhmaill, Pádraig | Article in Book | | 2013 |
| Old St Mary's, 1784-1984 | Macaulay, AmbroseRogers, Patrick, | Monograph or Collective Volume | Howard Publications | 1984 |
| Old Testament borrowings in early Irish law | O'Neill, Pamela | Article in Journal | | 2013 |
| Old Testament borrowings in early Irish law | O'Neill, Pamela | Article in Journal | | 2013 |
| Oliver Plunket and the Popish Plot | Brady, John, d.1963 | Article in Journal | | 1958 |
| On a fertile rock : the Cistercian abbey of Corcomroe | MacMahon, Michael | Monograph or Collective Volume | Kincora Press | 2000 |
| On bells and bell-towers : origins and evolutions in Italy and Britain | Christie, Neil | Article in Journal | | 2004 |
| On bells and belltowers : origins and evolutions in Italy and Britain, AD 700-1200 | Christie, Neil | Monograph or Collective Volume | The Friends of All Saints' Church, Brixworth | 2004 |
| On Insular Bells and Tomb-shaped Shrines | Bourke, Cormac | Article in Book | Edinburgh University Press | 2025 |
| On some ancient remains at Kilmaclenine, with illustrations from the Pipa Colmani | Olden, Thomas | Article in Journal | | 1879 |
| On some origins in the ecclesiastical art of the early church in Celtic Ireland | Kilbride-Jones, H. E. | Article in Journal | | 1992 |
| On the Calendar of Oengus | | Article in Journal | | 1880 |
| On the edge : the Irish in Britain as a troubled and troubling presence in the work of Jimmy McGovern and Alan Bleasdale | Free, Marcus | Article in Journal | | 2011 |
| On the formation of priests and the 1990 Synod of Bishops | O'Shea, Michael | Article in Journal | | 1990 |
| On the road : from Tara to Tiananmen Square | Healy, Shay, 1943- | Monograph or Collective Volume | O'Brien Press | 2005 |
| On the summits of the highest love-Auf den Gipfeln der Höchsten Liebe | Farinella, Enzo | Monograph or Collective Volume | GrafiSer | 2017 |
| On the temporalities of the Augustinian abbey of St Mary the Virgin, Cong, Co. Mayo | Ó Duígeannáin, Mícheál | Article in Journal | | 1938 |
| Once more Kinsale | Boyle, Alexander | Article in Journal | | 1965 |
| One hundred and fifty years, 1826-1976: sesquicentennial anniversary Portadown parish church (St. Mark's) | St. Mark's Church | Monograph or Collective Volume | Nelson & Knox (N.I.) (printer) | 1976 |
| One hundred years, 1871-1971 : centenary of St. Columba's parish church, Omagh | Taylor, Robert Kenneth | Monograph or Collective Volume | Graham & Sons [Printer] | 1971 |
| Onomasticon Goedelicum, Locorum et tribuum hiberniae et scotiae. An index, with identifications, to the Gaelic names of places and tribes. | Hogan, Edmund Ignatius | Monograph or Collective Volume | | 1910 |
| Opposition to pilgrimage in tenth-century Ireland | Boyle, Elizabeth | Article in Book | | 2015 |
| Opposition to the statutory establishment of Marsh's library in 1707 : a case-study in Irish ecclesiastical politics in the reign of Queen Anne | Hayton, D. W. (David William) | Article in Book | | 2004 |
| Orda judiciorum; sive, Methodus procedendi in negotiis et litibus in foro ecclesiastico civili Britannico et Hibernico. 2 vols. | OUGHTON Thomas | Monograph or Collective Volume | | 1728 |
| Ordeal by fire in medieval Ireland | Archan, Christophe | Article in Journal | | 2014 |
| Orders and desecrations : the life of the playwright | Johnston, DenisJohnston, Rory | Monograph or Collective Volume | Lilliput Press | 1992 |
| Ordnance Survey memoir for the parish of Antrim : a description complied as part of the field survey for the first edition of the six inch Ordnance Survey maps / and edited and illustrated by James Boyle of the Ordnance Survey 1838; with an introduction to the Ordnance Survey parish memoirs 1830-40 by Brian Trainor | Boyle, James | Monograph or Collective Volume | Northern Ireland Public Record Office | 1969 |
| Ordnance Survey memoirs for the parishes of Desertmartin and Kilcronaghan 1836-1837 | Ballinascreen Historical Society | Monograph or Collective Volume | Ballinascreen Historical Society | 1981 |
| Origins of Saint Patrick's Cathedral, Skibbereen | O'Brien, GeraldO'Regan, Philip | Article in Journal | | 2018 |
| Origins of the diocese of Kilmore | Gwynn, Aubrey | Article in Journal | | 1961 |
| Óró Domhnaigh : Pearse Hutchinson as journalist, broadcaster and critic | Woods, Vincent | Article in Book | | 2011 |
| Ossian and Ossianic parallelism in James Barry's works | Mitchell, Sebastian | Article in Journal | | 2008 |
| Our ancient ruined churches | Power, P. | Article in Journal | | 1951 |
| Our Christian heritage - some of the churches and ecclesiastical sites of diocese of Ferns | Cushen, Bernard | Article in Book | | 1999 |
| Our great inheritance : volume one - The Cathedral Church of Christ the Redeemer, Dromore | Doloughan, Andrew | Monograph or Collective Volume | Banbridge Chronicle Press [Printer] | 1995 |
| Our great inheritance : volume two - Dromore Cathedral Parish | Doloughan, Andrew | Monograph or Collective Volume | Banbridge Chronicle Press [Printer] | 1995 |
| Our Irish Romanesque architecture | Healy, J. | Article in Journal | | 1903 |
| Our Lady of Victories, Noeux-les-Mines | Downes, Seán | Article in Journal | | 2016 |
| Our Lady's Well | MacMahon, Bryan | Article in Book | | 2012 |
| Our man in the Vatican | O'Brien, Martin | Article in Journal | | 2011 |
| Our onomastic heritage : the Gaelic system of personal names, surnames and tribal names, categories and sources | Tempan, Paul David | Article in Journal | | 2004 |
| Our onomastic heritage, the Gaelic system of personal names, surnames and tribal names | Tempan, Paul | Article in Journal | | 2006 |
| Out of sight, out of mind? the wills of monastic and mendicant bishops in Britain and Ireland, 1350-1535 | Thornton, David E. | Article in Journal | | 2024 |
| Owein at St Patrick's Purgatory | Easting, R. | Article in Journal | | 1986 |
| Owning Church, 1798-1998 | O'Donnell, Michael | Monograph or Collective Volume | Michael O'Donnell | 1998 |
| Oxygen of publicity and the suffocation of censorship : British newspaper representations of the broadcasting ban (1988-1994) | Pettigrew, Max | Thesis | | |
| Oylegate Glenbrien : a look back in time | Oylegate Glenbrien Journal Society | Monograph or Collective Volume | Oylegate Glenbrien Journal Society | 2008 |
| Pádraig Ó Mathúna: an enduring legacy | Charleton, Muireann | Article in Journal | | 2010 |
| Pagans and holy men : literary manifestations of twelfth-century reform | Ní Mhaonaigh, Máire | Article in Book | | 2006 |
| Palladius and Patrick | Thomas, Charles | Article in Book | | 2004 |
| Papal Bullae found in Ireland | Ó Floinn, Raghnall | Article in Journal | | 2018 |
| Papal legates in Ireland during the twelfth century | Gwynn, Aubrey | Article in Journal | | 1944 |
| Papal letters and Irish clergy : Clogher before the Reformation | Jefferies, Henry A. | Article in Book | | 2005 |
| Papal primacy then and now | O'Connell, Patrick | Article in Book | | 1970 |
| Paper tigers | Kennedy, Mary | Monograph or Collective Volume | Merlin | 2003 |
| Papists, protestants and the Irish in London, 1835-70 | Gilley, Sheridan | Article in Book | | 1972 |
| Paris of the Irish | Lennon, M. J. | Article in Journal | | 1955 |
| Parish bounds in the Kildare diocese | Gleeson, Dermot F. | Article in Journal | | 1949 |
| Parish Church on fire. From "The People" 13 February 1892 | | Article in Journal | | 2011 |
| Parish clergy since the 1700s | MacMahon, Bryan | Article in Book | | 2012 |
| Parish of Camus - Juxta - Bann : 1400 years of Christian witness | Gallagher, Adrian I. | Monograph or Collective Volume | A. & Co. | 2000 |
| Parish of Donaghcloney : 'something to celebrate', 1681-1981 | Cooper, S. J. W. | Monograph or Collective Volume | L. M. Press [Printer] | 1981 |
| Parish of Drumachose: a brief historical sketch : a guide to the church | Knowles, G W. A.Seymour, A. N. | Monograph or Collective Volume | Nicholson and Bass [Printer] | 1969 |
| Parish of Fivemiletown : a short history of St. John's with Kiltermon, 1870-1970 | Bloomfield, Emily | Monograph or Collective Volume | | 1970 |
| Parish of St. John the Evangelist, Orangefield : 21 years of church extension in Castlereagh | Crooks, S. B. | Monograph or Collective Volume | [Parish of Saint John the Evangelist, Orangefield] | 1958 |
| Parish of Tickmacrevan, County Antrim: an historical survey | Boyd, Hugh Alexander | Monograph or Collective Volume | C. J. Rountree | 1954 |
| Parish priests of Armagh since the Reformation | Ó Fiaich, Tomás | Article in Book | | 2013 |
| Parish priests of Armagh, 1752-1834 | Paterson, T. G. F. | Article in Book | | 2013 |
| Parish, pastoral care and 'tuath' in the diocese of Limerick, c. 1201 | MacCotter, Paul | Article in Journal | | 2013 |
| Parishes, pews and parsons : lay people and the Church of Ireland, 1647-1780 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2002 |
| Parnassus in Waterford. (Apropos of Latin Proses) | Wall, Thomas | Article in Journal | | 1947 |
| Parochial development in the deanery of Ardagh | Dove, Michael R. | Article in Journal | | 1990 |
| Parochial papers | Moore, Very Rev. Canon, P.P. Johnstown | Article in Journal | | 1879 |
| Partition, the Catholic church and the diocese of Clogher, c.1912-1928 | Phoenix, Eamon | Article in Book | | 2005 |
| Past lives : the memorials of Saint Patrick's Cathedral, Dublin | Fenton, Albert | Monograph or Collective Volume | St Patrick's Cathedral | 2012 |
| Pastimes | McArdle, Joseph
| Article in Journal | | 2011 |
| Pastimes in old Dublin | Maguire, Leo | Article in Journal | | 1943 |
| Pastoral care before the parish | | Monograph or Collective Volume | | 1992 |
| Paths of exile : narratives of St Columba and the praxis of Iona | Lewis, James | Monograph or Collective Volume | Cloverdale Books | 2007 |
| Patrician documents in medieval Germany | Ó Riain-Raedel, Dagmar | Article in Journal | | 1997 |
| Patrician studies in the 'Irish Ecclesiastial Record' | Bieler, Ludwig | Article in Journal | | 1964 |
| Patrick and the Kings : apropos a new chronology of St Patrick | Bieler, Ludwig | Article in Journal | | 1956 |
| Patrick and the Prosper connection | Keogh, Raymond M. | Article in Journal | | 2003 |
| Patrick Boyle, the Irish Colleges and the historiography of Irish Catholicism | Chambers, Liam | Article in Book | | 2013 |
| Patrick Byrne and St. Paul's Arran Quay, Dublin | Grimes, Brendan | Article in Journal | | 2007 |
| Patrick Cardinal O'Donnell | Silke, John J. | Article in Journal | | 1988 |
| Patrick Dorrian, bishop of Down and Connor, 1865-1885 | Macaulay, Ambrose | Monograph or Collective Volume | Irish Academic Press | 1987 |
| Patrick Kelly bishop of Richmond | Keane, Frank | Article in Journal | | 2004 |
| Patrick MacGill, 1890-1963 : an alternative vision | Aspinwall, Bernard | Article in Book | | 1992 |
| Patrick MacMahon, bishop of Killaloe, 1829-1836 | Clancy, John | Article in Journal | | 1941 |
| Patrick O'Scannell, O. P., archbishop of Armagh, 1261-70 | O'Halloran, Michael | Article in Journal | | 1960 |
| Patrick Pollen : metaphysician in glass | Bowe, Nicola Gordon | Article in Journal | | 2011 |
| Patrick's reasons for leaving Britain | Flechner, Roy | Article in Book | | 2011 |
| Patriotism as pastime : the appeal of fenianism in the mid-1860s | Comerford, R.V. (Richard Vincent) | Article in Journal | | 1981 |
| Patriotism as pastime : the appeal of Fenianism in the mid-1860s | Comerford, R.V. (Richard Vincent) | Article in Book | | 1987 |
| Patristic background to medieval Irish ecclesiastical sources | McNamara, Martin | Article in Book | | 1995 |
| Patronage and poverty in county Down : the case of Patrick Bronte | Adams, Amber M. | Article in Journal | | 1987 |
| Patrons and architects and the creation of Roman Catholic church architecture in nineteenth-century Dublin | Grimes, Brendan | Article in Journal | | 2015 |
| Patterns in stonework: the early church in Britain and Ireland. An introduction to ecclesiastical geology | Potter, John F. | Monograph or Collective Volume | Archaeopress | 2009 |
| Patterns of patronage : churches, round towers and the Dál Cais kings of Munster, c.950-1050 | Ó Carragáin, Tomás | Article in Book | | 2011 |
| Paul cardinal Cullen and the shaping of modern Irish nationalism | Bowen, Desmond | Monograph or Collective Volume | Gill & Macmillan | 1983 |
| Paul Cullen : the great ultramontane | Larkin, Emmet | Article in Book | | 2011 |
| Paul Cullen and his contemporaries, Vol. 4 : with their letters from 1820 - 1902 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1974 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol. 2 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1963 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol. 3 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1965 |
| Paul Cullen and his contemporaries, with their letters from 1820-1902, Vol.1 | Mac Suibhne, Peadar | Monograph or Collective Volume | Leinster Leader | 1961 |
| Paul Cullen and the declaration of papal infallibility | Tanner, Norman | Article in Book | | 2011 |
| Paul Cullen and the Irish College, Paris | Chambers, Liam | Article in Book | | 2011 |
| Paul Cullen and the remaking of Catholicism in the Antipodes | Sweetman, Rory | Article in Book | | 2011 |
| Paul Cullen and the visual arts | Kane, Eileen | Article in Book | | 2011 |
| Paul Cullen in the Irish Conservative imagination | Shields, Andrew | Article in Book | | 2011 |
| Paul Cullen, J. J. McCarthy, and Holy Cross church, Clonliffe : the politics and iconography of architectural style | Montague, John | Article in Book | | 2011 |
| Paul Cullen: cardinal and politician | Senior, Hereward | Article in Book | | 1978 |
| Peculiar plaster: recent conservation of Irish eighteenth-century modelled plaster | Ireland, Richard | Article in Book | | 2012 |
| Penance and punishment in early medieval Ireland | Farrell, Elaine Pereira | Article in Journal | | 2021 |
| Penance, atonement and the Eucharistic community | Connolly, Hugh | Article in Book | | 2012 |
| Pentecostal origins : early Pentecostalism in Ireland in the context of the British Isles | Robinson, James | Monograph or Collective Volume | Paternoster | 2005 |
| People, priests and prelates : ecclesiastical democracy and the tensions of trusteeism | Carey, Patrick | Monograph or Collective Volume | # | 1987 |
| People, priests and prelates : ecclesiastical democracy and the tensions of trusteeism | Casey, Patrick | Monograph or Collective Volume | University of Notre Dame Press | 1987 |
| Perception and meaning : early Gothic architecture in the diocese of Cashel | Stalley, Roger | Article in Book | | 2011 |
| Peregrinalto Columbae | Bourke, Cormac | Article in Book | | 2004 |
| Peregrinatio : punishment and exile in the early Gaelic church | O'Neill, Pamela | Article in Journal | | 2010 |
| Peregrinatio and transculturalism in the Regensburger Schottenlegende | Poser, Thomas | Article in Book | | 2017 |
| Peregrinatio: punishment and exile in the early Gaelic church | O'Neill, Pamela | Article in Journal | | 2012 |
| Perennial Problems of Scottish Catholics : Morale, Personnel and Money | Aspinwall, Bernard | Article in Book | | 2002 |
| Peripheral or Europeanized? remarks about continental and external influences in the Book of Leinster | Schluter, Dagmar | Article in Book | | 2017 |
| Perpendiculer architecture? excavations at St Patrick's Church, Armoy, Co. Antrim | Hurl, Declan | Article in Journal | | 1998 |
| Perversion of Irish education | Cahill, Edward | Article in Journal | | 1939 |
| Peter Browne, devotional writer of the eighteenth century : bishop of Cork, 1710-1735 | Jackson, Robert Wyse | Monograph or Collective Volume | A.P.C.K. | 1963 |
| Peter Coffey (1876-1943) : from neo-scholastic scholar to social theorist | Jennings, Gavan | Article in Book | | 2009 |
| Peter McLaughlin Raphoe and Derry 1760-1840 | Donnelly, Philip | Article in Journal | | 2006 |
| Peter of Ireland and Aristotelianism in southern Italy | Dunne, Michael W. | Article in Book | | 2009 |
| Petition from parishioners of Blanchardstown to Archbishop Murray concerning clerical appointments, 1826 | Cronin, Elizabeth M. | Article in Journal | | 2002 |
| Petrie's 'magnum opus' | Murray, Peter | Article in Journal | | 2018 |
| Philip Donnellan, Ireland and dissident documentary | Pettitt, Lance | Article in Journal | | 2000 |
| Philip Donnellan, Ireland and dissident documentary | Pettitt, Lance | Article in Journal | | 2000 |
| Philip MacDevitt, bishop of Derry, 1766-97 | Donnelly, Philip | Article in Journal | | 2007 |
| Picking up the pieces | Dempsey, GaryNeligan, Thomas | Article in Journal | | 2020 |
| Picts and Britons in the early medieval Irish church : travels west over the storm-swelled sea | Plumb, Oisin | Monograph or Collective Volume | Brepols | 2020 |
| Pietro Tamburini's Jansenist legacy at the Irish College in Rome and his influence on the Irish Church | Korten, Christopher | Article in Journal | | 2017 |
| Piety and politics : funerary sculpture in Cashel, c. 1500-1640 | Moss, Rachel | Article in Book | | 2011 |
| Piety, patrons and prints: Franciscan altar plate, 1600-1650 | Krasnodebska-D'Aughton, Malgorzata | Article in Journal | | 2008 |
| Pii antistitis icon, or the Life of Francis Kirwan, bishop of Killala, 1669 | Lynch, John, d. in or after 1677 | Monograph or Collective Volume | The Stationery Office | 1951 |
| Pilgrimage to Heaven : eschatology and monastic spirituality in early medieval Ireland | Ritari, Katja | Monograph or Collective Volume | Brepols | 2018 |
| Place-name survival and replacement in Co. Antrim | McKay, Patrick | Article in Book | | 1998 |
| Place-names and land-holding under the Magennis Lordship, Iveagh, County Down, Northern Ireland | Muhr, Kay | Article in Book | | 1998 |
| Placename studies in Scotland and the Onomasticon | Taylor, Simon | Article in Book | | 2011 |
| Plan and source analysis of Das Bibelwerk - Old Testament | McNamara, Martin | Article in Book | | 1987 |
| Plan of St Mary's Chapel | Matthews, Brendan | Article in Journal | | 2016 |
| Plantagenet Ireland, England, and Castile : from Burgos (1254) to Batalha (1385) | Phillips, J.R.S. (John Roland Seymour) | Article in Book | | 2008 |
| Plastic bullets - plastic government : deaths and injuries by plastic bullets, August, 1981 | Paul, D. | Monograph or Collective Volume | The author | 1982 |
| Plastic paddies vs. master racers : "Soccer" and Irish identity | Arrowsmith, Aidan | Article in Journal | | 2004 |
| Plenitude of power : the doctrines and exercises of authority in the middle ages : essays in memory of Robert Louis Benson | | Monograph or Collective Volume | Ashgate | 2006 |
| Poem in praise of John Cantwell, archbishop of Cashel, 1452-82 | | Article in Journal | | 1962 |
| Poems by Flann Mainistrech on the dynasties of Ailech, Mide and Brega | MacNeill, Eoin | Article in Journal | | 1913 |
| Policy and patronage : the appointment of bishops 1660-61 | McGuire, James | Article in Book | | 1995 |
| Political Catholicism in post-war Ireland : the Revd Denis Fahey and Maria Duce 1945-54 | Delaney, Enda | Article in Journal | | 2001 |
| Political censorship and the democratic state : the Irish broadcasting ban | | Monograph or Collective Volume | Four Courts | 2005 |
| Political Toasting in Eighteenth-Century Ireland | Powell, Martyn J. | Article in Journal | | 2006 |
| Politics and administration, 1815-70 | Kinealy, Christine | Article in Book | | 2011 |
| Politics, interdenominational relations and education in the public ministry of Bishop James Doyle of Kildare and Leighlin, 1786-1834 | McGrath, Thomas | Monograph or Collective Volume | Four Courts | 1999 |
| Politics, religion, and economy : Cork in the seventeenth century | Irwin, Liam | Article in Journal | | 1980 |
| Pope Clement XI and the British Isles : the inventory of Fondo Albani 163-168 | Burns, C. S. (Charles S.) | Article in Book | | 1991 |
| Pope Gregory VII and the Irish church | Gwynn, Aubrey | Article in Journal | | 1941 |
| Pope Innocent III and Ireland | Dunning, Patrick J., Rev. | Thesis | | 1960 |
| Pope Innocent III and Ireland : some unnoticed letters | Dunning, P. J. | Article in Journal | | 1945 |
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| Popular Catholicism in Irish New York, c.1900 | McLeod, Hugh | Article in Book | | 1989 |
| Popular Protestantism in Ulster in the post-rebellion period, c.1790-1810 | Hill, Myrtle | Article in Book | | 1989 |
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| Post-medieval developments at Moyne friary, Co. Mayo: c.1540-c.1700 | McDermott, Yvonne | Article in Journal | | 2014 |
| Postscript by the Very Revd. Victor Griffin | Griffin, Victor | Article in Book | | 2009 |
| Power, politics and parish formation in the medieval cantred of Ardnurcher: 1172-1690 | Masterson, Rory | Article in Journal | | 2011 |
| Pre-Reformation archbishops of Cashel | Seymour, St. John D. | Monograph or Collective Volume | Church of Ireland Printing & Publishing Co. | 1910 |
| Pre-reformation church and monastic sites in the barony of Bunratty Lower, c.500 A.D. - 1500 A. D. | Ryan, Gerrard | Article in Journal | | 1985 |
| Pre-Romanesque churches in county Dublin and its hinterland | Walsh, Nessa | Article in Book | | 2008 |
| Pre-romanesque round towers: the development of masonry and its iconographic significance | Kerr, Sarah | Article in Journal | | 2011 |
| Pre-twelfth century Tuam | Claffey, John A. | Article in Book | | 2014 |
| Preached at Saint Patrick's : sermons from different ages | | Monograph or Collective Volume | Four Courts | 2004 |
| Preaching history, 1749: the Belfast sermons of Gilbert Kennedy and James Saurin | Gillespie, Raymond | Article in Book | NA | 2017 |
| Precious memories of the Old Kilmacud Church | Cahill, Matt | Article in Journal | | 2022 |
| Premonstratensian settlement in the Czech Lands and Ireland, 1142-1250 | Clyne, Miriam | Article in Journal | | 2018 |
| Presbyterian church records | Kinealy, Christine | Article in Book | | 1992 |
| Presbyterian history in Ireland : two seventeenth-century narratives | | Monograph or Collective Volume | Ulster Historical Foundation | 2016 |
| Presbyterians and the confessional state : the sacramental test as an issue in Irish politics, 1704–80 | Hayton, D. W. (David William) | Article in Journal | | 1997 |
| Preserving the past : history, manuscripts and belonging, c.1600-41 | Empey, Mark | Article in Book | Four Courts Press | 2025 |
| Preserving Zion : the anatomy of protestant nonconformist archives in Great Britain and Ireland | Field, Clive D. | Article in Journal | | 2008 |
| Priests and prelates of Armagh in the age of reformations, 1518-1558 | Jefferies, Henry A. | Monograph or Collective Volume | Four Courts | 1997 |
| Priests and privileged communications | Lee, Gerard A. | Article in Journal | | 1946 |
| Priests at the hustings : ecclesiastical electioneering in nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 1996 |
| Priests in the independence movement of '98 | Hayes, Richard J., 1902- | Article in Journal | | 1945 |
| Priests in the independence movement, 1796-8 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1946 |
| Priests of Armagh, 1834-2013 | Ó Fiaich, Tomás | Article in Book | | 2013 |
| Priests' residences in later medieval Ireland | Bermingham, Helen | Article in Book | | 2006 |
| Primary and secondary education | Campbell, J. J. | Article in Book | | 1957 |
| Primate Alexander | Neely, R. G. | Article in Book | | 1999 |
| Primate Alexander, archbishop of Armagh, a memoir | | Monograph or Collective Volume | [s.n.] | 1913 |
| Primate George Dowdall and the Marian restoration | Jefferies, Henry A. | Article in Journal | | 1998 |
| Primate Lombard and James I | Silke, John J. | Article in Journal | | 1955 |
| Primate Reginald and Henry III | O'Halloran, M. | Article in Journal | | 1952 |
| Primatus Dublinensis : the primacy of the see of Dublin, or a compendium of the arguments on which the see of Dublin relies, for the enjoyment and prosecution in its own right of the primacy of Ireland | Talbot, Peter | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | 1947 |
| Prince Hohenlohe, Signor Pastorini and miraculous healing in early nineteenth-century Ireland | Geary, Laurence M. | Article in Book | | 1999 |
| Priory of Holmpatrick | Browne, Robert | Article in Journal | | 1998 |
| Proclaiming the Republic : broadcasting policy and the corporate state in Ireland | Bell, D. | Article in Journal | | 1985 |
| Projecting the past : historical documentary in Ireland | O'Brien, Harvey | Article in Journal | | 2000 |
| Prolegomena to a reappraisal of early Christianity in Man relative to the Irish Sea Province | Shaw, R. Cunliffe | Article in Journal | | 1967 |
| Property and politics : essays in later medieval English history | | Monograph or Collective Volume | Sutton | 1984 |
| Proposals to register Irish priests, 1756-7 | Brady, John, d.1963 | Article in Journal | | 1962 |
| Prosopographica Glindelechensis : the monastic church of Glendalough and its community sixth to thirteenth centuries | Mac Shamhráin, Ailbhe | Article in Journal | | 1989 |
| Prosopography (Denis O'Keeffe; Arthur H. Ryan; Theodore Crowley OFM; Cahal B. Daly) | McEvoy, James | Article in Book | | 2009 |
| Protestant Dublin, 1660-1760 | Usher, Robin | Monograph or Collective Volume | Palgrave Macmillan | 2012 |
| Protestant Dublin, 1660-1760 : architecture and iconography | Usher, Robin | Monograph or Collective Volume | Palgrave Macmillan | 2012 |
| Protestant philanthropy and social interaction in the 19th century | Donohoe, Patricia | Article in Book | | 2008 |
| Protestants and the Irish language, c.1675-1725 | Barnard, T. C. (Toby Christopher) | Article in Journal | | 1993 |
| Providence, revolution and the conditional defence of the union : Paul Cullen and the Fenians | Kelly, Matthew | Article in Book | | 2011 |
| Providing a prophetic voice? Churches and peacebuilding, 1968-2005 | Power, Maria | Article in Book | | 2011 |
| Psalm 21 and the beasts of the Ardagh Chalice | Clarke, Michael | Article in Book | | 2017 |
| Pseudo-Cyprian De Duodecim Abusivis Saeculi and the Bible | Breen, Aidan | Article in Book | | 1987 |
| Pseudo-Dionysius, Gilbert of Limerick and Innocent III : order, power and constitutional construction | Williamson, Shannon M. O. | Article in Book | | 2006 |
| Public administration | Neill, Desmond G. | Article in Book | | 1957 |
| Pugin and Maynooth | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1952 |
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| Pugin at Maynooth : the neo-Gothic contribution of A. W. N. Pugin to Maynooth College | | Monograph or Collective Volume | St Patrick's College, Maynooth|NUI Maynooth | 2012 |
| Punch's riposte : the Irish contribution to early modern Scotism from Maurice O'Fihely OFM Conv. to Anthony Rourke OFM Obs. | Stone, Martin W. F. | Article in Book | | 2009 |
| Putting women in order: A comparison of the medieval women religious of Ballymore-Loughsewdy and Prémontré | Seale, Yvonne | Article in Book | | 2023 |
| Quaker assets of the Carlow Meeting, Ireland: Part 1: Meeting Houses, meeting places and tenements located at Newgarden and in the town of Carlow|Part 2: Meeting places at Athy, Castledermot and Ballytore|Part 3: Burial grounds | Coutts, Peter | Article in Journal | | 2019 |
| Quatuor sanctissimi episcopi : Irish saints before St Patrick | Sharpe, Richard | Article in Book | | 1989 |
| Queering broadcast boundaries : an episode in Northern Ireland's radio history | Pettitt, Lance | Article in Journal | | 2005 |
| Queering Broadcast Boundaries : an episode in Northern Ireland's radio history | Pettitt, Lance | Article in Journal | | 2005 |
| Quelling the "oxygen of publicity" : British broadcasting and "the Troubles" during the Thatcher years | Edgerton, Gary | Article in Journal | | 1996 |
| Questing in Derry diocese 1849-1850 | Canning, B. J. (Bernard J.) | Article in Journal | | 1979 |
| Question time : radio and the liberalisation of Irish public discourse after World War II | Morgan, Eileen | Article in Journal | | 2001 |
| Quo vadis? Mapping the Irish 'monastic town' | Clarke, Howard B. | Article in Book | | 2013 |
| Racialism in Ireland? | Brown, Stephen J. | Article in Journal | | 1940 |
| Radio and regions in Irish traditional music | Kearney, Daithí | Article in Book | | 2012 |
| Radio Éireann agus saothrú an tsean-nóis in iarthar Uladh: léargas ar na chéadiarrachtaí a rinne Radio Éireann sa ghort an Saibhreas seo a chruinniú agus a chraoladh don phobal | Lee, Ian | Article in Book | | 2016 |
| Radio Foyle : une radio communautaire | Deutsch, Richard | Article in Journal | | 1987 |
| Radio man : 40 years of broadcasting | Balfe, Brendan | Monograph or Collective Volume | Gill & Macmillan | 2007 |
| Rahan monastic site : a conservation plan | Howley Hayes Architects | Monograph or Collective Volume | Offaly County Council | 2008 |
| Raiding and warring in monastic Ireland | Fitzpatrick, Liz | Article in Journal | | 1993 |
| Raidio na Gaeltachta | Ó Glaisne, Risteárd, 1927-2003 | Monograph or Collective Volume | Cló Chois Fharraige | 1982 |
| Raidió na Life : Radió na Réabhlóide | Ó Drisceoil, Fachtna | Article in Book | NA | 2007 |
| Raith Bressail : a suggested identification | Candon, Anthony | Article in Journal | | 1984 |
| Raphoe and the reformation | Silke, John J. | Article in Book | | 1995 |
| Raphoe Diocese: early Protestant places of worship in the 17th century | Roulston, William | Article in Journal | | 2019 |
| Rath Church of the Sacred Heart. Foundation stone of the Church of the Sacred Heart, Rath, laid in 1877 | Walsh, Jack | Article in Journal | | 2010 |
| Rathangan | Fitzgerald, Walter, Lord | Article in Journal | | 1908 |
| Rathlin, island and parish, diocese of Connor | Law, H. I., Rev. | Monograph or Collective Volume | Mid-Ulster Printing Co. [Printer] | 1930 |
| Rathmines church and the '77' | Ó Maitiú, Séamas | Article in Journal | | 2017 |
| Rathmore - its place in the history of Irish monasticism | Justice, Cornelius | Article in Journal | | 1980 |
| Rathmore Church, Co. Meath | Leask, H. G. (Harold G.) | Article in Journal | | 1933 |
| Raths and ruins : a survey of raths, souterrains, crannogs and ecclesiastical sites extinct and extant in the south Derry area | | Monograph or Collective Volume | Moyola Books | 1990 |
| Re-conceptualizing the Irish monastic town | Maddox, Melanie C. | Article in Journal | | 2016 |
| Re-organisation of the dioceses of Kilfenora, Kilmacduagh, Galway and Killaloe, 1852-1883 | Murphy, Ignatius | Article in Journal | | 1984 |
| Re-Placing Ireland in Irish Anthropology | Donnan, Hastings | Article in Book | | 2017 |
| Reading Architecture : St. Andrew's Church, Dublin, 1670-1990 | Usher, Robin | Article in Journal | | 2008 |
| Reading the Cityscape : Dublin's Churches, 1670-1720 | Usher, Robin | Article in Book | | 2007 |
| Réamonn Ó Gallachair, bishop of Derry | Bonner, Brian | Article in Journal | | 1974 |
| Reappraising the synod of Whitby | Dailey, Erin Thomas A. | Article in Journal | | 2009 |
| Reassessing Paul Cullen : an afterword | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2011 |
| Reassessing the Church of Ireland's relationship with the Irish State in education : an archival approch | Roulston, Robbie | Article in Journal | | 2014 |
| Reassessing the Irish "monastic town" | Valante, Mary A. | Article in Journal | | 1998 |
| Rebuilding the 'city of angels' : Muirchertach Ua Briain and Glendalough, c.1096-1111 | Ó Carragáin, Tomás | Article in Book | | 2010 |
| Recasting a tradition : William Molyneux and the sources of The Case of Ireland ... Stated (1698) | Kelly, Patrick | Article in Book | | 2000 |
| Recent geophysical investigations and LiDAR analysis at the Hill of Slane, Co. Meath | Barton, KevinBrady, ConorSeaver, Matthew | Article in Journal | | 2013 |
| Reclaiming an Irish 'Way of St James' | McLellan, Damien | Article in Journal | | 2016 |
| Reclaiming the forgotton church of St Thomas à Becket in Waterford City | McLellan, Damien
| Article in Journal | | 2016 |
| Recluses, relics and corpses : interpreting St Kevin's House | Ó Carragáin, Tomás | Article in Book | | 2011 |
| Recollecting Ireland’s flora: botanical information in the ‘Zoilomastix’ (c.1626) of Philip O’Sullivan Beare | Nelson, E. Charles | Article in Book | | 2022 |
| Reconstructing Irish Catholic origins after the Reformation | Ryan, Salvador | Article in Book | | 2012 |
| Reconstructing the territorial framework for ecclesiastical and secular power structures : a case study of the kingdom of Uí Fáeláin | MacCotter, Paul | Article in Book | | 2016 |
| Reconstructions of the Gothic past: the lost cathedral of Waterford | Stalley, Roger | Article in Journal | | 2013 |
| Recontextualizing the conflict : Northern Ireland television drama, and the politics of validation | Cornell, Jennifer C. | Article in Book | | 1999 |
| Records almost complete | Tobin, Lois | Article in Journal | | 1996 |
| Records of Ballingarry : Limerick Diocese | Hamilton, G. F. Rev. | Monograph or Collective Volume | George McKern & Sons | 1930 |
| Records of Convocation : index | | Monograph or Collective Volume | Boydell Press in association with the Church of England Record Society | 2006 |
| Records of Convocation : introduction | | Monograph or Collective Volume | Boydell Press in association with the Church of England Record Society | 2006 |
| Records of convocation. Ireland, 1101-1690 | | Monograph or Collective Volume | Boydell Press in association with the Church of England Record Society | 2006 |
| Records of the Church of Ireland | Refaussé, Raymond | Article in Book | | 1992 |
| Records of the general synod of Ulster, 1691-1820 | Anonymous | Monograph or Collective Volume | [s.n.] | 1890 |
| Records of the Irish Catholic church | Corish, Patrick J.Sheehy, David C. | Monograph or Collective Volume | Irish Academic Press | 2001 |
| Recovering the charism, 1963-90 | MacMahon, Joseph | Article in Book | | 2009 |
| Recreation, games and pastimes in Streamstown over the century | Murray, Patsy | Article in Book | | 2002 |
| Rectors of the Irish College of Salamanca, 1705-67 | Finegan, Francis | Article in Journal | | 1968 |
| Recycling an island's past for a global Catholicism : Irish Franciscans in the seventeenth century | McCafferty, John | Article in Book | | 2022 |
| Red, white and blue martyrdom | Stancliffe, Clare | Article in Book | | 1982 |
| References to church buildings in the Annals | Manning, Conleth | Article in Book | | 2000 |
| Reflections of a Newry-born priest who was secretary to three pontiffs | Magee, John | Article in Journal | | 1989 |
| Reflections on the Ardagh chalice | Fullam, Paddy | Article in Journal | | 1990 |
| Reform and decay, 1500-1598 | Gillespie, Raymond | Article in Book | | 2009 |
| Reform, revolution, and reaction : Archbishop John Thomas Troy and the Catholic Church in Ireland, 1787-1817 | McNally, Vincent J. | Monograph or Collective Volume | University Press of America | 1995 |
| Reformation to Restoration | Gillespie, RaymondLennon, Colm, | Article in Book | | 2000 |
| Reformation to the Roseingraves, music 1550-1750 | Houston, Kerry | Article in Book | | 2009 |
| Reforming and seeking an identity, 1829-1918 | Conlan, Patrick, 1940- | Article in Book | | 2009 |
| Regional roots : the BBC and poetry in Northern Ireland 1945-55 | Clark, Heather | Article in Journal | | 2003 |
| Regional roots : the BBC and poetry in Northern Ireland, 1945-55 | Clark, Heather | Article in Journal | | 2003 |
| Regional variation in Irish pre-Romanesque architecture | Ó Carragáin, Tomás | Article in Journal | | 2005 |
| Register of the Cathedral Church of St Columb, Derry, 1732-1775 | | Monograph or Collective Volume | Representative Church Body Library | 1999 |
| Register of the Cathedral Church of St. Columb, Derry, 1703-1732 | | Monograph or Collective Volume | Respresentative Church Body Library | 1997 |
| Register of the Cathedral of St FinBarre's, Cork, 1753-1804 | | Monograph or Collective Volume | Representative Church Body Library | 2008 |
| Register of the Cathedral of St. Patrick, Dublin, 1677-1869 | | Monograph or Collective Volume | Representative Church Body Library | 2007 |
| Register of the parish of Holy Trinity (Christ Church) Cork, 1643-1669 | | Monograph or Collective Volume | Representative Church Body Library | 1998 |
| Registers of a Midland parish, 1791-1810: Ballinahown, County Offaly and County Westmeath [with index] | | Article in Journal | | 2012 |
| Registration of Popish clergy, 1703 : incident in Howth, 1710 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1950 |
| Registration of the religion of children under the Irish Poor Law, 1838-1870 | Cousins, Mel | Article in Journal | | 2010 |
| Registrum Iohannis Mey : the register of John Mey, archbishop of Armagh, 1443-56 | | Monograph or Collective Volume | HMSO | 1972 |
| Registrum Octaviani : alias Liber Niger : the register of Octavian de Palatio, archbishop of Armagh, 1478-1513 | | Monograph or Collective Volume | Irish Manuscripts Commission | 1999 |
| Reiclés in the Irish annals to AD 1200 | MacDonald, Aidan | Article in Journal | | 1999 |
| Reinventing the city : the changing fortunes of places of worship in inner-city Dublin | Horner, Arnold | Article in Book | | 2004 |
| Relations between the Abbey of St Thomas the Martyr and the municipality of Dublin c. 1176-1527 | Davis, Virginia, 1958- | Article in Journal | | 1987 |
| Relic of the Holy Cross and silver case in which it is placed; now deposited in the Ursuline Convent, Blackrock, Cork | Comerford, M., C.C. | Article in Journal | | 1879 |
| Relics and recluses revisited : some thoughts on Cormac's Chapel, Cashel | Ó Carragáin, Tomás | Article in Book | | 2015 |
| Relics and the past : the material culture of Catholic martyrdom in Ireland | Tait, Clodagh | Article in Book | | 2009 |
| Relics, reliquaries and hagiography in south Ulster, 1450-1550 | Gillespie, Raymond | Article in Book | | 2006 |
| Religion and Broadcasting the Two Irelands | Savage, Robert J. | Article in Book | Oxford University Press | 2024 |
| Religion and Greater Ireland : Christianity and Irish global networks, 1750-1950 | | Monograph or Collective Volume | McGill-Queen's University | 2015 |
| Religion and national identity : papers read at the nineteenth summer meeting and twentieth winter meeting of the Ecclesiastical History Society | NA | Monograph or Collective Volume | NA | 1982 |
| Religion and politics in urban Ireland, c.1500–c.1750 : essays in honour of Colm Lennon | | Monograph or Collective Volume | Four Courts | 2016 |
| Religion and rebellion : Historical Studies, XX : papers read before the 22nd Irish Conference of Historians, held at University College Dublin, 18-22 May 1995 | | Monograph or Collective Volume | University College Dublin Press | 1997 |
| Religion and society in the ecclesiastical province of Tuam before the famine | Solan, John Denis | Thesis | | 1989 |
| Religion in modern Ireland | Gilley, Sheridan | Article in Journal | | 1992 |
| Religion, culture and the bardic elite in early modern Ireland | Caball, Marc | Article in Book | | 2005 |
| Religion, culture and values : a cross-cultural analysis of motivational factors in Native Irish and American Irish Catholicism | Biever, Bruce Francis | Monograph or Collective Volume | Arno Press | 1976 |
| Religion, landscape and settlement: from Patrick to present | Whelan, Kevin | Monograph or Collective Volume | Four Courts Press|In association with the Group for the Study of Irish Historic Settlement | 2018 |
| Religions and the history of education : a historiography | Raftery, Deirdre | Article in Journal | | 2012 |
| Religious census of the parish of Monkstown county Dublin 1766 | Merrigan, Michael | Article in Journal | | 1992 |
| Religious change, 1550-1800 | O'Connor, Thomas | Article in Book | | 2006 |
| Religious controversy in comparative context : Ulster, the Netherlands and South Africa in the 1920s | Mathieson, Stuart ; Flipse, Abraham C. | Article in Journal | | 2020 |
| Religious issues in the early workhouse | Robins, J. A. | Article in Journal | | 1968 |
| Religious observation in everyday life | MacMahon, Bryan | Article in Book | | 2012 |
| Religious renewal and reform in the pastoral ministry of Bishop James Doyle of Kildare and Leighlin | McGrath, Thomas | Monograph or Collective Volume | Four Courts | 1998 |
| Religious renewal and reform in the pastoral ministry of James Doyle, O.S.A., bishop of Kildare and Leighlin, 1819-1834 | McGrath, Thomas G. | Thesis | | 1987 |
| Religious riot as pastime : Orange Young Britons, parades and public life in Victorian Toronto | Clarke, Brian | Article in Book | | 2007 |
| Remains in Athy and neighbourhood | Carroll, J. | Article in Journal | | 1895 |
| Remains of a second pre-romanesque church at Inchcleraun on Lough Ree | Manning, Conleth | Article in Journal | | 2012 |
| Remains of St. Mary's abbey, Dublin : their explorations and researches A.D. 1886 | Various contributors | Monograph or Collective Volume | Forster | 1887 |
| Remarks on the liturgical fan, Flabellum or Rhipidion | Richardson, Hilary | Article in Book | | 1993 |
| Remarks on the walls and church of Athenry | McNeill, Charles | Article in Journal | | 1921 |
| Remembering All Hallows College | McCormack, Jim, CM | Monograph or Collective Volume | St Pauls Publishing | 2017 |
| Remembering the past ; a history of Killoughey church and cemetery | Condron, Breda | Monograph or Collective Volume | Author | 2019 |
| Reminiscences | Mulcahy, C. | Article in Journal | | 1945 |
| Reminiscences of the Rotunda | Tweedy, Ernest Hastings | Article in Journal | | 1945 |
| Renewal, Reformation, and ruins | Jefferies, Henry A | Article in Book | | 2012 |
| Renovation of St. Malachy's Church, Armagh, 2004-2005 | Murphy, Pádraig | Article in Book | | 2013 |
| Report of Bishop McDonagh, 1741 | McDonagh, Michael | Article in Journal | | 1965 |
| Report of Her Majesty's commissioners on the revenues and condition of the established church (Ireland) [Chairman : Earl of Meath], plus Appendix | Anonymous | Monograph or Collective Volume | | 1867-8 |
| Report of the rebuilding of the choir of Christ Church Cathedral, Dublin, and on the erection of a Synod Hall for the Church of Ireland | Street, George Edmund | Monograph or Collective Volume | Hodges, Figgis and Foster | 1871 |
| Report on progress of work, 'Irish Builder', 15 April 1872 | Irish Builder | Article in Book | | 2000 |
| Report on progress of work, 'Irish Builder', 15th April 1873 | Irish Builder | Article in Book | | 2000 |
| Report on progress of work, 'Irish Builder', 15th November 1871 | Irish Builder | Article in Book | | 2000 |
| Report on the manuscripts of the late Reginald Rawdon Hastings, Esq., of the Manor House, Ashby de la Zouche, 4 | | Monograph or Collective Volume | | 1947 |
| Reporting the ‘Troubles’ at Ulster Television : an archival exploration from 1968-1998 | Lafferty, Orla | Thesis | | |
| Reports of the Deputy Keeper of the Records for the years 1946-47, 1949 | Public Record Office of Northern Ireland | Monograph or Collective Volume | | 1949 |
| Representations of St Patrick | Harbison, Peter | Article in Book | | 2004 |
| Restoration and consolidation : music 1865-1977 | Houston, Kerry | Article in Book | | 2009 |
| Restoration of Templemaley church windows | Kearns, Mary | Article in Journal | | 2019 |
| Retrenchment, renewal and disestablishment, 1840-77 | Crawford, John, 1953-2011 | Article in Book | | 2009 |
| Rev. Daniel Eneas Coyle, P.P. pastor and church builder | Coyle, Francis P. | Article in Journal | | 2012 |
| Rev. Devereux Spratt | Power, Ita | Article in Journal | | 1992 |
| Rev. Edward Geratty and the building and burning of Killeedy Church and Glebe House 1817-22 | Howard, Leonard | Article in Journal | | 2015 |
| Revd John Richardson (c. 1669-1747) : County Cavan rector and Irish-language enthusiast | Barnard, T.C. (Toby Christopher) | Article in Book | | 2014 |
| Revealing the complexity of Early Ecclesiastical networks: Cross-slabs within and beyond the Hinterland of Clonmacnoise, Ireland | Ó Carragáin, Tomás; Colbert, Kate; Dempsey, Gary; Meere, Pat; Murray, Griffin, Ó Riain, Diarmuid | Article in Journal | | 2024 |
| Review article : Córus Bésgnai : a window on the medieval Irish church | Murray, Kevin | Article in Journal | | 2020 |
| Review article: 'Revisionism' in Tudor reformation studies | Jefferies, Henry A. | Article in Journal | | 2013 |
| Review of Kavanagh S. J. and White, N. B., 'Commentarius Rinuccinianus, Vol. 6, | Brady, John, d.1963 | Article in Journal | | 1951 |
| Review of Southern (A. C.), 'Elizabethan recusant prose', 1950 | Dauphin, Hubert | Article in Journal | | 1951 |
| Revisionism and the Irish Reformation | Bottigheimer, Karl S. | Article in Journal | | 2000 |
| Revisionism and the Irish Reformation : a rejoinder | Bradshaw, Brendan | Article in Journal | | 2000 |
| Revisiting reform : Armagh and Derry in the twelfth century | Ó Doibhlin, Ciarán | Article in Journal | | 2004 |
| Revisiting the ghost of Duffy's cut | Sullivan, Mary | Article in Journal | | 2013 |
| Rewriting the werewolf and rehabilitating the Irish in the Topographia Hibernica of Gerald of Wales | Panxhi, Lindsey Zachary | Article in Journal | | 2015 |
| Richard Archdekin's catechetical hour | Wall, Thomas | Article in Journal | | 1948 |
| Richard Arthur, bishop of Limerick | Moloney, Michael | Article in Book | | 1951 |
| Richard Colley Wellesley : a viceregal champion of Catholic emancipation | Grant, Hugh | Article in Journal | | 1955 |
| Richard FitzRalph : his life, times and thoughts | | Monograph or Collective Volume | Four Courts | 2013 |
| Richard FitzRalph and the fourteenth-century poverty controversies | Dawson, J. D. | Article in Journal | | 1983 |
| Richard FitzRalph of Dundalk, Oxford and Armagh : scholar, prelate and controversialist | Haren, Michael | Article in Book | | 2009 |
| Richard fitzRalph, archbishop of Armagh, and the doctrine of dominion | Betts, R. R. | Article in Book | | 1949 |
| Richard Ledrede, bishop of Ossory - towards a new assessment | Brennan, James | Article in Journal | | 1998 |
| Richard of Dundalk | Dunne, Michael | Article in Book | | 2012 |
| Richard Rolt Brash: 'a practical antiquary and able architect' | Smith, Cathal Dowd | Article in Journal | | 2023 |
| Richard Whately : religious controversialist of the nineteenth century | McKerrow, R. E. (Ray E.) | Article in Journal | | 1979 |
| Richard Whately on the nature of human knowledge in relation to ideas of his contemporaries | McKerrow, R. E. (Ray E.) | Article in Journal | | 1981 |
| Riding against the clock : the visitations of Edward Tenison in Carmarthen and Ossory in the early eighteenth century | Guy, John R. | Article in Book | | 1999 |
| Ringing the changes. A short history of Wicklow Parish Church | O'Reilly, Stan J. | Article in Journal | | 2006 |
| Rinuccini comes to Ireland | Gaffney, H. M. | Article in Journal | | 1940 |
| Ritual feasting in Iron Age Ireland | McCormick, Finbar | Article in Book | | 2009 |
| Rival sites and early life in Maynooth College | Brady, John, d.1963 | Article in Journal | | 1945 |
| Roasting a man alive : the case of Mary Rielly, criminal lunatic | Prior, Pauline M. | Article in Journal | | 2006 |
| Robert de Waldeby, O.S.A., archbishop of Dublin, 1390-1395 | Foran, E. A. | Article in Journal | | 1921 |
| Robert Peel and the Church of Ireland | Brynn, Edward | Article in Journal | | 1973 |
| Robert West, Christopher Myers and St James's Church, Whitehaven. | O'Dwyer, Frederick | Article in Journal | | 2009 |
| Roman Catholic church architecture in Great Britain and Ireland, 1829-1878 | O’Donnell, R. M. | Thesis | | |
| Romanesque architecture and sculpture at Ardmore | O'Keeffe, Tadhg | Article in Book | | 1992 |
| Romanesque as metaphor : architecture and reform in early twelfth-century Ireland | O'Keeffe, Tadhg | Article in Book | | 2000 |
| Romanesque Ireland : architecture and ideology in the twelfth century | O'Keeffe, Tadhg | Monograph or Collective Volume | Four Courts | 2003 |
| Romanesque voussoirs at St Finn Barre's Cathedral, Cork | Bradley, John, 1954-2014King, Heather | Article in Journal | | 1985 |
| Romanesque voussoirs at St. Fin Barre's Cathedral, Cork | Bradley, John, 1954-2014King, Heather | Article in Journal | | 1985 |
| Rome and Irish Catholicism in the Atlantic World, 1622–1908 | NA | Monograph or Collective Volume | Palgrave Macmillan | 2019 |
| Rome and the Anglo-Norman invasion of Ireland | O'Doherty, J. F. | Article in Journal | | 1933 |
| Rome and the British veto, 1829-47 | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1951 |
| Rome and the Isles : Ireland, England and the rhetoric of orthodoxy | Bracken, Damian | Article in Book | | 2009 |
| Room for expansion: the domestic ranges of Ross Errilly Franciscan Friary, co. Galway | McDermott, Yvonne | Article in Journal | | 2015 |
| Roots of Presbyterianism in Donegal, 1 : The Laggan and its Presbyterianism; 2 : In the days of the Laggan Presbytery. (The Laggan Presbytery books, 1, 2). 2 vols. | Lecky, A. G. | Monograph or Collective Volume | | 1905 |
| Rosclogher Castle: a Gaelic lordship centre on Lough Melvin, County Leitrim | McDermott, J.J.O'Conor, Kieran | Article in Journal | | 2015 |
| Roscommon : an independent dioceses and a separate kingdom | Anonymous | Article in Journal | | 1992 |
| Roscommon Presbyterian Church | Anonymous | Article in Journal | | 2000 |
| Ross Union of parishes | Peters, Christopher | Article in Journal | | 2000 |
| Rosserk Friary: a house of the Franciscan Third Order Regular | McDermott, Yvonne | Article in Journal | | 2011 |
| Rotulus pipae Clonensis | | Monograph or Collective Volume | | 1859 |
| Rotulus pipae Clonensis ex originali in registro ecclesiae cathedralis Clonensis asservato, nunc primum editus, cum prefatione et indicibus locupletissimis | Caulfield, Richard | Monograph or Collective Volume | George Nash | 1859 |
| Round towers of Ireland | Corlett, Christiaan | Monograph or Collective Volume | O'Brien Press | 2025 |
| Round towers of the Shannon | O'Regan, Carol | Thesis | | 1990 |
| Royal and saintly Cashel | Finn, Andrew | Monograph or Collective Volume | Catholic Truth Society of Ireland | 1929 |
| Royal inauguration assembley and the church in medieval Irealnd | FitzPatrick, Elizabeth | Article in Book | | 2003 |
| RTE off camera : images from the early years of RTE television | Byrne, GayRadio Telefís Éireann | Monograph or Collective Volume | Poolbeg | 2004 |
| Running a stained glass studio in Youghal from 1894 to 1901: the early years of James Watson and company | Ryan, Vera | Article in Journal | | 2021 |
| Rural change in the Co. Armagh townland of Lissummon 1784 to the present day | Goss, Mary | Article in Journal | | 1987 |
| Rural deanery of Creggan, 1798 | Ó Muiri, Réamonn | Article in Journal | | 1989 |
| Rush Library | McCullough, NiallRyan, Raymond | Monograph or Collective Volume | Associated Editions, distributed by Anne Street Press | 2010 |
| S. Augustine's Church Londonderry: Triennial Book 1961-64 | Tyndall, Charles J. | Monograph or Collective Volume | Ecclesiastical Press | 1963 |
| S. Ciarán's church and his lands: a study of the history and development of Clonmacnois | Kehnel, Annette | Thesis | | 1995 |
| S. Columb's Cathedral Londonderry : historical guide, 1946 | King, R. G. S. | Monograph or Collective Volume | David Irvine (printer) | 1946 |
| S. Columb's Cathedral Londonderry : historical guide, 1952 | King, R.G.S. | Monograph or Collective Volume | David Irvine, Waterloo Printing Works [Printer] | 1952 |
| S. Columb's Cathedral, Londonderry : historical guide, 1933 | King, R. G. S. | Monograph or Collective Volume | David Irvine [printer] | 1933 |
| S. Patrice d'Irlande et quelques homonymes dans les anciens martyrologes | Grosjean, Paul | Article in Journal | | 1950 |
| S. Patrick's cathedral, Armagh. Architects' report. | Carpenter, R. H.Ingelow, B. | Monograph or Collective Volume | V. Brooks, Day & Son | 1886 |
| S. Stefano al Monte Celio, Donnchad mac Briain and papal legates in Ireland, 1064-1203 | Harrington, Jesse P. | Article in Journal | | 2024 |
| Sacramentaries of the old Irish church | Hennig, John | Article in Journal | | 1961 |
| Sacred Cities? | Ryan, Michael | Article in Book | | 2007 |
| Sacred histories : a festschrift for Máire Herbert | | Monograph or Collective Volume | Four Courts | 2015 |
| Sacred places : the story of Christian architecture in Ireland | Hurley, RichardLarmour, PaulMoss, Rachel | Article in Book | | 2000 |
| Sacred space and "True religion" : the Irish Reformation and the Collegiate Church of St Nicholas, Galway | Ellis, Steven G., 1950- | Article in Journal | | 2018 |
| Sacred Spaces to Public Places | Curtis, Joe | Monograph or Collective Volume | First Return | 2021 |
| Sagairt Ghaodhlacha | Ó Láimhín, T. | Article in Journal | | 1940 |
| Saint Colman of Cloyne | Halliden, Patrick | Article in Book | | 1994 |
| Saint Columbanus pilgrim for Christ | Larkin, Aidan J. | Monograph or Collective Volume | Missionary Society of Saint Columban|Cumann Seanchais Ard Macha (Armagh Historical Society) | 2012 |
| Saint de la Salle and the education of Irish youth | Battersby, W. J. | Article in Journal | | 1950 |
| Saint Erc's Hermitage | Knight, George | Article in Journal | | 2024 |
| Saint Flannán oratory at Killaloe : a Romanesque building of c.1100 and the patronage of King Muirchertach Ua Briain | Gem, Richard | Article in Book | | 2006 |
| Saint Joseph's Mullaghard, Tynan (1813-2018) : a millennium church history | Brady, Patrick J. | Monograph or Collective Volume | Middletown & Tynan Historical Society | 2018 |
| Saint Laurence O'Toole, archbishop of Dublin | Howlett, Liam | Article in Journal | | 1971 |
| Saint Laurent O'Toole, archevêque de Dublin | Legris, Albert | Monograph or Collective Volume | [s.n.] | 1908 |
| Saint Malachy and the introduction of Cistercian monasticism to the Irish church: some suggestive evidence from Newry Abbey | Flanagan, Marie-Therese | Article in Journal | | 2009 |
| Saint Malachy, the Gill abbey of Cork, and the rule of Arrouaise | O'Sullivan, DenisWalsh, T. J. | Article in Journal | | 1949 |
| Saint Marcan's Loch and the early ecclesiastical ruins at Rossclave | Gullane, P. J. | Article in Journal | | 1986 |
| Saint Mark's : the history of a Dublin parish | MacCarthy, R. B. (Robert B.),Paterson, J. T. F. | Monograph or Collective Volume | [St Mark's parish] | 1971 |
| Saint Mary's Church | Copps, J. | Article in Journal | | 1988 |
| Saint Nicholas' Church, Carrickfergus: Gleanings from its life-story of seven centuries. | Rutherford, J. C. | Monograph or Collective Volume | [St Nicholas' Church, Carrickfergus] | 1935 |
| Saint Peter's Church, Ennisnag, Co. Kilkenny | O'Reilly, Aideen | Article in Journal | | 2015 |
| Saint Vauk of Carne | Dalton, John P. | Article in Journal | | 1921 |
| Saint-Patrice de Québec : la construction d'une église et l'implantation d'une paroisse | Doré, GuyO'Gallagher, Marianna | Monograph or Collective Volume | Société historique de Québec | 1979 |
| Saints and skinners: excavations along the northern precinct of the abbey of Saint Thomas the Martyr, Dublin | Duffy, Paul | Article in Book | | 2020 |
| Saints in the catalogue of bishops of the lost 'Register of Clogher' | Ó Riain, Pádraig | Article in Journal | | 1992 |
| Saints in the Landscape | Jones, Graham, 1943- | Monograph or Collective Volume | Tempus | 2007 |
| Saints’ dedications and the ecclesiastical landscape of Hiberno-Norse Dublin: Irish, Scandinavian and others | Bhreathnach, Edel | Article in Book | | 2020 |
| Salamanca letters : a catalogue of the Irish college of Salamanca correspondence between 1619-1870, in the library of Maynooth college, Ireland | Anonymous | Monograph or Collective Volume | St Patrick's College | 1994 |
| Sam Hanna Bell : a biography | Mahon, Seán | Monograph or Collective Volume | Blackstaff Press | 2000 |
| Sam Hanna Bell : a biography | McMahon, Sean | Monograph or Collective Volume | Blackstaff Press | 1999 |
| Sancti Columbani opera | | Monograph or Collective Volume | Institute for Advanced Studies | 1957 |
| Sandhills, silver and shrines : fine metalwork of the medieval period in Donegal | Ó Floinn, Raghnall | Article in Book | | 1995 |
| Saving the future : how social partnership shaped Ireland's economic success | Hastings, TimSheehan, BrianYeates, Brian | Monograph or Collective Volume | Blackhall Publishing | 2007 |
| Saving the medieval building on Church Island in Garadice Lake | Earley, Joseph E. | Article in Journal | | 2005 |
| Scáthán shacramuinte na haithridhe: scáthán na sacraiminte céanna. | Mac Craith, Mícheál | Article in Book | | 2000 |
| Scattery : an unknown part of the diocese of Limerick | Newman, Jeremiah | Article in Journal | | 1992 |
| Scholars and antiquarians : the clergy and learning, 1600-2000 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2006 |
| Scholars, schools and scholasticism : aspects of the Irish language and medieval learning | Ó hUiginn, Ruairí | Article in Book | | 2009 |
| Scotch-Irish among the loyalists of the southern backcountry : the case of Rawdon, Nova Scotia | Troxler, Carole Watterson | Article in Journal | | 2002 |
| Scotland : the famine and the development of the church in Scotland | Handley, J. E. | Article in Journal | | 1947 |
| Scotland and Ulster : a Presbyterian perspective, 1603-1700 | Gillespie, Raymond | Article in Book | | 2009 |
| Scots and Irish clergy ministering to immigrants, 1830-1878 | Aspinwall, Bernard | Article in Journal | | 1996 |
| Scots Catholics in Ulster, 1603-41 | Mac Cuarta, Brian | Article in Book | | 2016 |
| Scots Clann Domhnaill in Ireland | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1936 |
| Scots settlement and Presbyterianism in Sligo, 1600-2010 | Johnston, Jack | Article in Book | | 2024 |
| Scottish abbeys : An Introduction to the mediaeval abbeys and priories of Scotland | Cruden, Stewart | Monograph or Collective Volume | | 1960 |
| Scottish ecclesiastical influence upon Irish presbyterianism from the non-subscription controversy to the union of the synods | Allen, Robert, Rev. | Thesis | | 1940 |
| Scottish Protestant clergy and the origins of dissent in Ireland | Ford, Alan | Article in Book | | 2016 |
| Scríbhinní i gCartlainn an Vatican : tuarascbháil | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1946 |
| Scripture politics : selections from the writings of William Steel Dickson : the most influential United Irishman of the north | Clifford, BrendanDickson, William Steel | Monograph or Collective Volume | Athol | 1991 |
| Seals of Kildare bishops and dignitaries | Armstrong, E. C. R. | Article in Journal | | 1914 |
| Séamus Mhac Cúarta do chum an duan so don Easbog Ó Siadha[i] l | | Article in Journal | | 1939 |
| Séamus Ó Gallchobhair, easpag Ráth Bhoth, 1725-1737 | Ó hÉigeartaigh, Séamus P. | Article in Journal | | 1961 |
| Seán Mac hÉil, ardeaspag agus conspóidí : athbhreithniú | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1983 |
| Seán Ó Murchú: musical son of Knockma | Murphy, Mary J. | Article in Journal | | 2014 |
| Seanmóireacht in Éirinn ó 1000 go 1200 | Mac Donncha, Frederic | Article in Book | | 1982 |
| Searching for Lord Haw-Haw : the political lives of William Joyce | Holmes, Colin | Monograph or Collective Volume | Routledge | 2016 |
| Second congregation Belfast, 1708-2008 | Courtney, Roger | Monograph or Collective Volume | All-Souls Non-subscribing Presbyterian Congregation | 2008 |
| Secret churches | Surman, Richard | Monograph or Collective Volume | Collins | 2008 |
| Section 31 : ministerial orders and court challenges | White, Alex | Article in Book | | 2005 |
| Security and sanctity : the ecclesiastical metalwork of Lough Kinale | Kelly, Eamonn P. | Article in Journal | | 2006 |
| Seeing beneath the ground, using geophysics at the former ecclesiastical site of Clonard, Co. Meath | Gibson, P.J.
| Article in Journal | | 2009 |
| Select bibliography | Anonymous | Article in Journal | | 2003 |
| Select bibliography relating to Armagh diocesan history | Anonymous | Article in Journal | | 1989 |
| Select bibliography relating to Armagh diocesan history | Anonymous | Article in Journal | | 1989 |
| Select bibliography relating to Armagh diocesan history | Canning, Joseph | Article in Journal | | 1988 |
| Select Committee on prerogative and ecclesiastical courts | Anonymous | Monograph or Collective Volume | | 1837 |
| Select document : a settlement between the canons of St Thomas’s Abbey, Dublin, and Walter de Lacy concerning the church of Ardmulchan granted to the canons by Theobald Walter | Flanagan, Marie Therese | Article in Journal | | 2020 |
| Select document: W. E. Gladstone, 'Parliamentary Doings with the Irish Church' | Gladstone, William Ewart, 1809-1898 | Article in Journal | | 2018 |
| Select documents. Edward I's government and the Irish church : a neglected document from the Waterford-Lismore controversy | | Article in Journal | | 2001 |
| Selections from the Zoilomastix of O'Sullivan Beare. Edited by T.J. O'Donnell | O'Sullivan Beare, Philip | Monograph or Collective Volume | | 1960 |
| Selections from the Zoilomastix of Philip O'Sullivan Beare | | Monograph or Collective Volume | The Stationery Office [for the Irish Manuscripts Commission] | 1960 |
| Seoda arna gcaobhnú i Mainistir Chnoic MhellerÍ | Ó Maidín, Uinseann | Article in Journal | | 2018 |
| Serfs and Citizens: the church tenants of medieval Armagh | Simms, Katharine | Article in Journal | | 2021 |
| Sermons on St Patrick on the continent | Ó Súilleabháin, Pádraig | Article in Journal | | 1964 |
| Serpent-salve, 1643 : the royalism of John Bramhall | Sanderson, John | Article in Journal | | 1974 |
| Servants of Christ : a short history of the bishops of Derry since the reformation, 1605-1995 | Orr, J. C. D. | Monograph or Collective Volume | A.P.C.K. | 1997 |
| Set on a hill : the story of Knockbreda Parish Church | Wood, R. Ernest | Monograph or Collective Volume | Universities Press [Printer] | 1987 |
| Settlement on Mellifont Abbey’s monastic estate in counties Meath and Louth (1540–1) | Stout, Geraldine | Article in Book | Four Courts Press | 2018 |
| Settlement, society and landscape in Brugh na Bóinne since the mid-sixteenth century | Jenkins, William | Article in Book | | 2008 |
| Seventeenth century Irish theologians in exile | Wall, Thomas | Article in Journal | | 1939 |
| Seventeenth-century Ireland : making Ireland modern | Gillespie, Raymond | Monograph or Collective Volume | Gill & Macmillan | 2006 |
| Seventh-century documents | Byrne, Francis John, 1934- | Article in Journal | | 1967 |
| Shades of Shandon | Salter, George Alfred | Monograph or Collective Volume | [St Ann, Shandon?] | 1979 |
| Shandon | Rynne, Colin | Article in Book | | 2005 |
| Shooting to kill : film-making and the "troubles" in Northern Ireland | McIlroy, Brian | Monograph or Collective Volume | Steveston Press | 2001 |
| Short history of the parish of Billy | Johns, Adam A., Rev. | Monograph or Collective Volume | Impact Printing [Printer] | 1982 |
| Short history of the parish of Derrykeighan, from the dedication of the church of St Colman, 9th September 1831 to July 1981 | Johns, Adam A., Rev. | Monograph or Collective Volume | Bushfoot Press [Printer] | 1981 |
| Short history of the ruins of St Mary's church, Colla Road, Schull | Mackey, Mary | Article in Journal | | 2000 |
| Sidelights on souperism | O'Neill, Thomas Patrick | Article in Journal | | 1949 |
| Sidelights on the bishops of Raphoe from the register of Pope Innocent III | Dunning, P. J. | Article in Book | | 1959 |
| Sidelights on the Kildare ascendancy : a survey of Geraldine involvement in the Church, c.1470-c.1520 | Lyons, Mary Ann | Article in Journal | | 1994 |
| Silence and violence among Northern Ireland border Protestants | Donnan, HastingsSimpson, Kirk | Article in Journal | | 2007 |
| Sir John Davies, the ancient constitution and civil law | Pawlisch, H. S. | Article in Journal | | 1980 |
| Sir Mulmory McSwiny, chieftain, 1596-1630 | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1938 |
| Sir Peter Lewys, ecclesiastical cathedral and bridge builder and his company of masons, 1564-7 | Berry, Henry F. | Article in Journal | | 1902 |
| Sir Thomas Farrell, Stillorgan sculptor | MacMahon, Bryan, 1949- | Article in Journal | | 2013 |
| Sir Thomas Wyse and mixed education | Batterberry, R. P. J. | Article in Journal | | 1939 |
| Sisters of the priory confraternity of Christ Church, Dublin, in the late middle ages | Lennon, Colm | Article in Book | | 2023 |
| Six Board of First Fruits churches in southwest Cork | O'Mahony, Bernard | Article in Journal | | 2010 |
| Sixmilecross Parish : a brief historical account: thanksgiving for the Sesquicentenary, 1836-1986 | Murphy, Thomas | Monograph or Collective Volume | [Sixmilecross Parish] | 1986 |
| Sixty years of church life in St. Nicholas' Parish, Belfast : a souvenir of the opening of the parish hall, 31st January, 1959 | Mercer, John, Rev. | Monograph or Collective Volume | M & W. Publications. | 1959 |
| Skellig Michael : monastic island retreat in the Atlantic | Rourke, Grellan D.
| Article in Book | | 2009 |
| Skellig Michael and Early Irish Monasticism | Scully, Diarmuid | Chapter in Book | | 2022 |
| Skellig Michael, Co. Kerry : a lonely island hermitage at the edge of the world? | Bhreathnach, Edel | Article in Journal | | 2022 |
| Skellig Michael, Co. Kerry : the monastery and South Peak. Archaeological stratigraphic report: excavations 1986-2010 | | Monograph or Collective Volume | Government of Ireland | 2011 |
| Skerries coasting trade | Conlon, Terry | Article in Journal | | 2006 |
| Sliabh Larga and Cuaille Ciannachta in the synod of Rath Breasail | Ó Maolagáin, Pádraig | Article in Journal | | 1947 |
| Sliocht Lachlain Maguire (1300-1600). Ecclesiastics of the Erne | Schlegel, Donald M.
| Article in Journal | | 2013 |
| Sneem : the knot in the ring | Stoakley, T. E. | Monograph or Collective Volume | Sneem Tourism Association | 1986 |
| Soar like an eagle : the life and times of Charles Guilfoyle Doran | McSweeney, Anne | Monograph or Collective Volume | [The author] | 2018 |
| Social anthropology and public policy in Northern Ireland | Donnan, HastingsMcFarlane, Graham | Monograph or Collective Volume | Avebury | 1989 |
| Social life in rural Northern Ireland | Donnan, HastingsMcFarlane, Graham | Article in Journal | | 1985 |
| Social relations in rural society | Mogey, John | Article in Book | | 1957 |
| Social structures of the Irish church : a new source in papal penitentiary dispensations for illegitimacy | Haren, Michael J. | Article in Book | | 1994 |
| Society and economy, 1815-70 | Connolly, Seán J. | Article in Book | | 2011 |
| Society outing to Roscrea and Leap Castle | Feerick, Aidan | Article in Journal | | 2024 |
| Some account of the parish of Graig-na-managh | Comerford, M., P.P. | Article in Journal | | 1883 |
| Some aspects of the Irish church in the eighteenth century | Brady, John, d.1963 | Article in Journal | | 1948 |
| Some aspects of the life of Doctor John Thomas Troy, O. P., 1739-1823 | Peel, H. E. | Article in Journal | | 1957 |
| Some aspects of the relationship between secular and ecclesiastical learning in Ireland and England in the early post-conversion period | Moisl, Hermann | Thesis | | |
| Some attitudes to religious freedom and ecumenism in pre-emancipation Ireland | Murphy, Ignatius | Article in Journal | | 1966 |
| Some British aspects of the earliest Irish Christianity | Dumville, David N. | Article in Book | | 1984 |
| Some Church of Ireland churches in the diocese of Raphoe | Crooks, David | Article in Journal | | 2004 |
| Some church silver of Limerick city | Jackson, Robert Wyse. | Article in Journal | | 1949 |
| Some civil and ecclesiastical territorial divisions and their geographical significance | Nolan, William | Article in Book | | 1986 |
| Some comparative aspects of Irish law | Donaldson, A. G. | Monograph or Collective Volume | Duke University Press | 1957 |
| Some country churches by Joseph Welland | Rowan, Alistair | Article in Book | | 2003 |
| Some County Sligo Rood Lofts and their wider Irish contexts | Higgins, Jim | Article in Journal | | 2020 |
| Some Donegal Franciscan chalices | MacGrath, Kevin | Article in Book | | 1952 |
| Some early 19th-century cross carvings in Galway city | O'Dowd, Peadar | Article in Journal | | 2014 |
| Some early Coleraine [and district] marriage 'strays', 1655-1771 | Forrest, Robert | Article in Journal | | 2009 |
| Some early masonry churches and the round tower at Clonmacnoise | Manning, Conleth | Article in Book | | 2003 |
| Some ecclesiastical and secular insular metalwork found in Norwegian Viking graves | Wamers, Egon | Article in Journal | | 1983 |
| Some ecclesiastical and secular insular metalwork in Norwegian Viking graves | Wamers, Egon | Article in Journal | | 1983 |
| Some Franciscan altar plates from Drogheda | Fennessy, Ignatius | Article in Journal | | 2012 |
| Some historical memoranda respecting the territory of Kilwarlin and a few of the places neighbouring as well as included. | Hume, Abraham | Monograph or Collective Volume | Privately printed. T. Brakell [Printer] | 1866 |
| Some holy heroes of Irish monasticism and their relations with Scotia Minor | Dunleavy, G. W. (Gareth W.) | Article in Journal | | 1957 |
| Some interesting chalices | Scantlebury, C. | Article in Journal | | 1946 |
| Some Irish altar plate | Buckley, J. J. (John Joseph) | Article in Journal | | 1942 |
| Some Irish ecclesiastical titles in the tenth and eleventh centuries | Gwynn, Aubrey | Article in Journal | | 1942 |
| Some Irish opinion on population and emigration, 185l-1901 | Keep, G. R. C. | Article in Journal | | 1955 |
| Some Irish prelates who lived or died in Belgium in the seventeenth century | Antheunis, Louis | Article in Journal | | 1955 |
| Some Irishmen in Belgium in past centuries | Antheunis, Louis | Article in Journal | | 1954 |
| Some lesser known ecclesiastical sites in Fore, Co. Westmeath | Masterson, Rory | Article in Journal | | 1998 |
| Some Limerick ecclesiastical antiquities | Hunt, John | Article in Book | | 1951 |
| Some MacMahon wills from Clogher diocese | Ó Mórdha, P. | Article in Journal | | 1991 |
| Some metropolitan visitations of Meath in the fifteenth century | Lynch, Anthony | Article in Journal | | 1982 |
| Some minor Irish cathedrals | Clapham, Alfred William, Sir, 1883-1950 | Article in Book | | 1939 |
| Some minor Irish cathedrals | Clapham, Alfred William, Sir, 1883-1950 | Article in Book | | 1952 |
| Some new perspectives on Sligo Dominican priory | O'Conor, Kieran Denis | Article in Book | | 2024 |
| Some Norman monastic foundations in Ireland | Richardson, Henry Gerald | Article in Book | | 1961 |
| Some northern churchmen and some notes on the Church in Belfast | MacNeice, John Frederick | Monograph or Collective Volume | Church of Ireland Printing & Publishing Co. Ltd | 1934 |
| Some notes concerning the terrier or ledger book of Down and Connor which relate to the northern and eastern parts of Connor diocese | | Article in Journal | | 1990 |
| Some notes on Killala Diocese | Neary, J. | Article in Journal | | 1913 |
| Some notes on Kilmactalway Co. Dublin | McCabe, Brian | Article in Journal | | 2022 |
| Some notes on the abbey and cross of Moone and other places in the valley of Griese | Carroll, F. M. | Article in Journal | | 1895 |
| Some notes on the cathedral of St. Brigid of Kildare | Craig, H. N. | Monograph or Collective Volume | George F. Healy | 1931 |
| Some notes on the cathedral of St. Brigid of Kildare | Craig, H. N. | Monograph or Collective Volume | Leinster Leader (printer) | 1946 |
| Some notes on the early British church | Best, W. S. | Article in Journal | | 1949 |
| Some notes on the history of Kilbride church and graveyard Co. Dublin | McCabe, Brian | Article in Journal | | 2020 |
| Some notes on the history of Kilmahuddrick | McCabe, Brian | Article in Journal | | 2023 |
| Some notes on the history of Oughterard | McCabe, Brian | Article in Journal | | 2015 |
| Some notices of the castle and of the ecclesiastical buildings at Trim. | Butler, Richard, 1794-1862 | Monograph or Collective Volume | | 1861 |
| Some notices of the castle and of the ecclesiastical buildings of Trim | Butler, Richard, 1794-1862 | Monograph or Collective Volume | Meath Archaeological and Historical Society | 1978 |
| Some observations on tense-usage in Saint Patrick's writings | Ó Raifeartaigh, T. | Article in Journal | | 1967 |
| Some old illustrations of St Doulagh's Church, Balgriffin, Co. Dublin | Harbison, Peter | Article in Book | | 2009 |
| Some papers of Henry Hughes, O.F.M., vicar apostolic of Gibraltar, 1839-56 | Ó Huallacháin, Maelísa | Article in Journal | | 1998 |
| Some parish priests of the diocese of Killaloe and some puzzles of local history | Anonymous | Article in Journal | | 1939 |
| Some priors of Fore, Co. Westmeath | Seymour, St. John D. | Article in Journal | | 1934 |
| Some problems concerning the organization of the Church in early medieval Ireland | Sharpe, Richard | Article in Journal | | 1984 |
| Some recent contributions to Cork diocesan history | Collins, John T. | Article in Journal | | 1951 |
| Some records of a Cistercian abbey : Holm Cultram, Cumberland | | Monograph or Collective Volume | | 1899 |
| Some remarks on Cummian's Paschal Letter and the Commenta on Mark ascribed to Cummian | Walsh, Maura | Article in Book | | 1987 |
| Some repercussions of the Act of Union on the Church of Ireland, 1801-20 | Brynn, Edward | Article in Journal | | 1971 |
| Some seventh-century Hiberno-Latin texts and their relationships | Breen, Aidan | Article in Journal | | 1984 |
| Some thoughts on matters onomastic | Ó Muraíle, Nollaig | Article in Journal | | 2001 |
| Some Ulster ecclesiastical bells | Morris, Henry | Article in Journal | | 1931 |
| Some Watson windows (1894-1931) in North Cork Churches | Ryan, Vera | Article in Journal | | 2018 |
| Something fishy about the church at Killadreenan. ...archaeological evidence for British influence on Irish church architecture in the eleventh century | Corlett, Christiaan | Article in Journal | | 2015 |
| Sonas na bpeacach agus mí-ádh na bhfíoraen | | Article in Journal | | 1944 |
| Soul sisters: Two Irish holy women in their late antique context | Swift, Catherine | Article in Book | | 2023 |
| Source material for a parish history in the dioceses of Connor and the united diocese of Down and Dromore | Cox, Robert | Article in Journal | | 1977 |
| Sources for a seventeenth-century Ulster estate. The Hastings (Irish) papers in the Huntingdon library, California | Collins, Brenda | Article in Journal | | 2008 |
| Sources for British and Irish history in the Instrumenta Miscellanea of the Vatican Archives | Burns, C. S. (Charles S.) | Article in Journal | | 1971 |
| Sources for early modern Irish history 1534-1641 | Edwards, R. W. D. (Robert Walter Dudley)O'Dowd, Mary | Monograph or Collective Volume | Cambridge University Press | 1985 |
| Sources for researching the Protestant working class in the archives of the Church of Ireland | Maguire, Martin | Article in Journal | | 2014 |
| Sources for the history of the Irish College, Rome | Hanley, John | Article in Journal | | 1964 |
| Sources for the history of the Irish College, Rome | Hanly, John | Article in Journal | | 1964 |
| Sources of Irish mythology. The significance of the
dinn enchas | Murray, Kevin | Article in Journal | | 2019 |
| Sources of law of the Church of Ireland : identification, investigation and reform | Colton, W. Paul | Thesis | | |
| Souterrain at Muirhevnamore, Marshes Upper, Dundalk | Campbell, Kieran | Article in Journal | | 2002 |
| South Belfast | Templeton, George E.Weatherall, Norman | Monograph or Collective Volume | Nonsuch | 2007 |
| South Belfast : history and guide | Templeton, George E.Weatherall, Norman | Monograph or Collective Volume | Nonsuch | 2008 |
| South Tipperary, 1570-1841 : religion, land and rivalry | Butler, David J., 1976- | Monograph or Collective Volume | Four Courts | 2006 |
| Space organization in early Irish monasteries : the platea | Picard, Jean-Michel | Article in Book | | 2011 |
| Special privileges for the Irish in the kingdom of Castile (1601-1680) : modern myth or contemporary reality? | O'Scea, Ciaran | Article in Book | | 2010 |
| Special privileges for the Irish in the Kingdom of Castile (1601-1680) : modern myth or contemporary reality? | O'Scea, Ciaran | Article in Book | | 2010 |
| Speech by the former Taoiseach, on the occasion of the launch of Rahan Monastic Site conservation plan... in Rahan romanesque church, Tullamore, County Offaly | Cowen, Brian | Article in Journal | | 2011 |
| Speech in debate on establishment of Tribunal to investigate '7 Days' programme on moneylending, 16 December, 1969 | Thornley, David | Article in Book | | 2008 |
| Spenser's Irish work : poetry, plantation and colonial reformation | Herron, Thomas, 1968- | Monograph or Collective Volume | Ashgate | 2007 |
| Spiritual renewal and changing landscapes : the mendicant orders in Ireland, thirteenth– sixteenth centuries | Lafaye, Anne-Julie | Article in Book | Four Courts Press | 2018 |
| Sport and the British : a modern history | Holt, Richard, 1948- | Monograph or Collective Volume | | 1989 |
| St Ailbe's heritage : a guide to the history, genealogy and towns of the Archdiocese of Cashel and Emly | Tipperary Heritage Unit | Monograph or Collective Volume | Tipperary Heritage Unit | 1999 |
| St Albert, patron of Cashel : a study in the history of diocesan episcopacy in Ireland | Hennig, John | Article in Journal | | 1945 |
| St Andrew's church | Goslin, Bernadette | Article in Journal | | 1990 |
| St Andrew's Lucan : history, architecture and artworks | Twomey, Valerie | Article in Book | | 2008 |
| St Audeon's Roman Catholic Church, High Street, Dublin | Semple, Una | Article in Journal | | 2005 |
| St Audoen's Church, Cornmarket, Dublin : archaeology and architecture | | Monograph or Collective Volume | Stationery Office | 2006 |
| St Bartholomew’s. A history of the Dublin parish with an account of the church building and the art it contains | Milne, Kenneth
Rowan, Alastair | Monograph or Collective Volume | Hinds | 2019 |
| St Bernard, his views on architecture and the Irish dimension | Stalley, Roger | Article in Journal | | 1993 |
| St Brendan's cathedral, Loughrea, 1897-1947 | MacGreevy, Thomas | Article in Journal | | 1947 |
| St Brendan's cathedral, Loughrea, Co. Galway | Egan, Patrick J. | Monograph or Collective Volume | Eason | 1986 |
| St Brendan's Church of Ireland, Tarbert, 1814-2014 : 200 years of change | Tarbert Historical and Heritage Society | Monograph or Collective Volume | Tarbert Historical and Heritage Society | 2014 |
| St Brigid and the cathedral church of Kildare | Cowell, George Young | Article in Journal | | 1899 |
| St Brigid's cathedral in the age of reform, 1500-1700 | Gillespie, Raymond | Article in Journal | | 2001 |
| St Brigid's Cathedral, Kildare : a history | | Monograph or Collective Volume | Kildare Archaeological Society | 2001 |
| St Canice's cathedral, Kilkenny | Leask, H. G. (Harold G.) | Article in Journal | | 1949 |
| St Cartha's : Sacred sites in the Parish of Kilcar, Co. Donegal | Campbell, Catherine | Monograph or Collective Volume | Catherine Campbell | 2001 |
| St Colman's Church, Shrule | McDermott, Yvonne | Article in Journal | | 2011 |
| St Columbanus in the liturgy | Hennig, John | Article in Journal | | 1943 |
| St Coman's Church, Kinvara | Carey, Anne | Article in Journal | | 2008 |
| St David's Church, Castleinch: an ivy-clad ruin | Hyland, Richard | Article in Journal | | 2015 |
| St David's church, Naas : a new dimension | Ó Ríordáin, Breandán | Article in Journal | | 1987 |
| St Declan's road | Mulcahy, Michael | Article in Journal | | 1988 |
| St Dympna's Church, Carlow. A student project | Conroy. Thomas | Article in Journal | | 2009 |
| St Eunan's Cathedral, Letterkenny | Ó Baoighill, Pádraig, Rev. | Article in Book | | 2013 |
| St Fachtna of Ross and his church | Bangerter, Doreen | Article in Journal | | 2009 |
| St Fin Barre's Cathedral | Holland, Michael | Article in Book | | 2005 |
| St Flannan's cathedral Killaloe : a short history | Owen, Edwin | Monograph or Collective Volume | Ballinakella | 1992 |
| St James' Durrus : a parish history | | Monograph or Collective Volume | Forum Publications | 1992 |
| St James's parish, Kilbeggan. The old graveyard, relic cemetry | Flynn, Kitty | Monograph or Collective Volume | [The author] | 2018 |
| St John and St Anne stained glass window. Cathedral of the Annunciation and St Nathy, Ballaghaderreen | Boyce, Angela | Article in Journal | | 2019 |
| St John the Evangelist Church, Moyraverty | McCorry, F.X. (Francis Xavier) | Article in Journal | | 2008 |
| St John's - an area of international historical significance. Extracts from articles in "Roscommon Herald" | | Article in Journal | | 2000 |
| St John's Cathedral, Limerick | Devane, A. D. | Article in Book | | 1951 |
| St John's Cathedral, Sligo | Doyle, Bernie | Article in Journal | | 2018 |
| St John's Church, Coolclogh, Co. Cork | O'Reilly, Barry | Article in Journal | | 2011 |
| St John's Church, Cork. Centenary souvenir, 1840-1940. | | Monograph or Collective Volume | [St John's Church] | 1940 |
| St John's Church, Fivemiletown, 1736-1986 | Johnston, Jack | Monograph or Collective Volume | [St John's Church] | 1986 |
| St John's Church, John Street, Kilkenny | Murphy, Damian | Article in Journal | | 2022 |
| St John's Lane : a 'poem in stone' from stones and stained glass | Kelly, David | Article in Book | | 2013 |
| St Joseph's Carmelite monastery, Kilmacud | Zherelin, Svyatoslav | Article in Journal | | 2013 |
| St Joseph's R.C. Church, Glasthule. 150 years old | O'Donnell, Mona | Article in Journal | | 2019 |
| St Kevin's Church, Camden Row | Ó Maitiú, Séamas | Article in Journal | | 2010 |
| St Kevin’s – An ancient Dublin Parish | Kenny, Adrian | Monograph or Collective Volume | | 2018 |
| St Kilian and the Irish network in early Carolingian Europe | Ó Riain-Raedel, Dagmar | Article in Book | | 2017 |
| St Laserian's Cathedral, Old Leighlin. "A flame of gold over noble Ireland" | Wynne, Gordon, Dean | Article in Journal | | 2006 |
| St Malachy of Armagh | Gwynn, Aubrey | Article in Journal | | 1949 |
| St Malachy, St Bernard of Clairvaux, and the Cistercian order | Flanagan, Marie Therese | Article in Journal | | 2015 |
| St Martin's church Templemartin : a short history, 1797-1997 | Fenning, John E. | Monograph or Collective Volume | [The author] | 1997 |
| St Mary's abbey and the church at Skryne | Hickey, Elizabeth | Article in Journal | | 1952 |
| St Mary's abbey, Devenish | Mullarkey, T. | Article in Journal | | 1961 |
| St Mary's Abbey, Dublin, and its medieval farm suppliers | Stout, Geraldine | Article in Book | | 2015 |
| St Mary's Cathedral | Ryan, Cyril | Article in Journal | | 2015 |
| St Mary's Cathedral, Kilkenny : notes on the foundation, construction, furnishings | Phelan, Margaret M. | Monograph or Collective Volume | The author | 1972 |
| St Mary's cathedral, Limerick : its development and growth | Hewson, R. F. | Article in Journal | | 1944 |
| St Mary's Church of Ireland church Castletownroche | Annesley, Patrick G | Article in Journal | | 1994 |
| St Mary's Church of Ireland, Julianstown, Co. Meath | Rutherford, Janet E. | Article in Book | | 2012 |
| St Mary's Church, Ballymascanlan | Bellew, Séamus | Article in Journal | | 2017 |
| St Mary's Church, Bennekerry, Carlow. Solemnly dedicated Sunday 9 November 1862 | Browne, John | Article in Journal | | 2019 |
| St Mary's Church, Buttevant, Co. Cork 1828-1886 : notes on its building history | O'Brien, James | Article in Book | | 2013 |
| St Mary's Hall and Alms Houses, Kilkenny in the 1950s and 1960s. Interview with Eileen Bibby | Bibby, Eileen | Article in Journal | | 2013 |
| St mary's parish, Howth, 1816-2016 | Henly, DaphneO'Laoire, Carolyn | Monograph or Collective Volume | Select Vestry of St Mary's, Howth | 2016 |
| St Mary's Sandyford: a local hidden treasure | Dixon, Michael | Article in Journal | | 2011 |
| St Maur's Chapel, Rush | McCann Moore, Margaret | Monograph or Collective Volume | Beta Printing Services | no date given |
| St Mel's cathedral, Longford, 1840. visitor's guide | Clarkson, Sr. AngelaDuffy, Francis, bishopHughes, KittyMcGuinness, SiveMurray, Tom, Rev.O'Reilly, Colm, bishopSalmon, GerryWhite, Alex | Monograph or Collective Volume | [St Mel's Cathedral] | 2016 |
| St Mel's crozier | Daly, Cathal B. | Article in Journal | | 1974 |
| St Michael's Church, Dun Laoghaire | Scudds, Anna | Article in Journal | | 2004 |
| St Michan's church and parish : our church. A labour of love through the centuries | Pender, Paddy | Monograph or Collective Volume | | 2011 |
| St Moling, contemplative Christianity and the medieval landscape of south Carlow : biblical style in the poem Gáir na Gairbhe | de Paor, Máire B. | Article in Book | | 2008 |
| St Nicholas' parish church, Lisburn Road, Belfast : 75th anniversary | | Monograph or Collective Volume | [St Nicholas' Parish Church] | [1976] |
| St Nicholas's parish church, Galway : structural and architectural evidence for the high medieval period | McKeon, Jim | Article in Journal | | 2009 |
| St Patrick and Armagh | Ó Fiaich, Tomás | Article in Journal | | 1961 |
| St Patrick and Rome | Gwynn, Aubrey | Article in Journal | | 1961 |
| St Patrick and the civilizing of Ireland | Murphy, Gerard | Article in Journal | | 1953 |
| St Patrick and the Defensio | Ó Raifeartaigh, T. | Article in Journal | | 1983 |
| St Patrick at Glastonbury | Fenning, H. P. R. | Article in Journal | | 1967 |
| St Patrick at his "first synod" | Dumville, David N. | Article in Book | | 1993 |
| St Patrick's bell shrine: form and layout of the plates | Stevick, Robert D. | Article in Journal | | 2008 |
| St Patrick's cathedral (C. of I.) | O'Neill, MichaelStalley, Roger | Article in Book | | 2005 |
| St Patrick's Cathedral, Armagh | McCourt, Eileen | Monograph or Collective Volume | Teachers' Centre | 1981 |
| St Patrick's Cathedral, Dublin : A History | | Monograph or Collective Volume | Four Courts Press | 2009 |
| St Patrick's Cathedral, Dublin : the recent discovery of the thirteenth-century south nave wall | Simpson, Linzi | Article in Book | | 2015 |
| St Patrick's cathedral, Dublin and its prebendal churches : gothic architectural relationships | O'Neill, Michael | Article in Book | | 2004 |
| St Patrick's Church extension | Hasson, Seamus | Article in Journal | | 1999 |
| St Patrick's church, Donaghmore, Co. Tyrone : a history | Bogue, Patricia | Monograph or Collective Volume | Blackstaff Press | 2018 |
| St Patrick's Church, Knockcroghery | Coyne, Ferdy | Article in Journal | | 2000 |
| St Patrick's Church, Newport, Co. Mayo | Newport Foroige Club | Monograph or Collective Volume | Newport Foroige Club | 1986 |
| St Patrick's Collegiate Chapel, Maynooth, Co. Kildare | McGuane, Eilíse | Article in Journal | | 2011 |
| St Patrick's other island | Brophy, P. J. | Article in Journal | | 1951 |
| St Patrick's Purgatory : contributions towards an historical topography | Bieler, Ludwig | Article in Journal | | 1960 |
| St Patrick's terminology for confirmation | Marsh, Thomas William | Article in Journal | | 1960 |
| St Patrick, Skerries and the earliest evidence for local church organization in Ireland | Swift, Catherine | Article in Book | | 2004 |
| St Senán : early monastic Enniscorthy | Breen, Aidan | Article in Book | | 2010 |
| St Sepulchre’s palace: new perspectives from recent excavations | Hayden, Alan R. | Article in Book | NA | 2020 |
| St Teresa's Church, Clarendon Street, Dublin | Monaghan, Phelim | Monograph or Collective Volume | Carmelite Publications | 1992 |
| St Vincent de Paul and Ireland 1640-1660 | Purcell, Mary | Article in Journal | | 1964 |
| St Vincent's Church and the Vincentians in Cork | O'Callaghan, Antóin | Article in Journal | | 2025 |
| St. Andrew's Church, Westland Row, Dublin : an enduring presence : an overview of the history of St. Andrew's Church from its origins to the present | Watson, Elizabeth | Monograph or Collective Volume | St. Andrew's Church | 2007 |
| St. Andrew's, Inishargy, Balligan | Beckett, J. C. (James Camlin),Dunleath, LordJackson, C. T., | Monograph or Collective Volume | | 1967 |
| St. Anna's Church, MIllstreet : a history | Tangney, Denis | Monograph or Collective Volume | MIllstreet Museum Society | 1995 |
| St. Anselm and the Irish church | Gwynn, Aubrey | Article in Journal | | 1942 |
| St. Brendan's Cathedral, Clonfert, County Galway : conservation plan | Nolan, Dermot,Ruane, Pat | Monograph or Collective Volume | The Heritage Council | 2004 |
| St. Brendan's fantastic voyage | Schomp, Gerald | Article in Journal | | 1977 |
| St. Brendan's Sydenham in the twentieth century: a historical narrative | Johnston, Sam | Monograph or Collective Volume | | 2001 |
| St. Brigid's 300 year milestone | Kuss, Victor | Article in Journal | | 2014 |
| St. Caimin’s, Inis Cealtra. Reconstruction of the doorway | De Paor, LiamGlenn, Deirdre | Article in Journal | | 1995 |
| St. Canice's Cathedral in an age of change 1500-1560 | Gillespie, Raymond | Article in Book | | 2000 |
| St. Colman's Parish Church, Ardboe: a short sketch 1830-1930 | Baxter, John | Monograph or Collective Volume | [St. Colman's Parish, Ardboe] | 1989 |
| St. Columba's Church, Parish of Whiterock [Diocese of Connor] | Cunningham, R. S. | Monograph or Collective Volume | Castle [Printers] | 1978 |
| St. David's Church, Naas | De Burgh, Archdeacon | Article in Journal | | 1895 |
| St. Doulagh's church | Harbison, Peter | Article in Journal | | 1982 |
| St. Enoch's congregation, 1872-1972 : an account of Presbyterianism in Belfast | Barkley, John M. | Monograph or Collective Volume | St Enoch's Church | 1972 |
| St. Ernan's : a short history | Seaver, George | Monograph or Collective Volume | St. Ernan's Management Committee | 1964 |
| St. Fachtna's cathedral, Ross : a history | Peters, Christopher | Monograph or Collective Volume | Select Vestry, Ross union of parishes | 1999 |
| St. Feichin's, Ballisodare, Co. Sligo : discoveries and rediscoveries | Timoney, Mary B. | Article in Book | | 2002 |
| St. Fethlimidh's Cathedral, Kilmore: a short history | Combe, John Charles | Monograph or Collective Volume | [Kilmore diocese]|Printed by L.M. Press, Lurgan, Co. Armagh | 1993 |
| St. Fillan's crozier - its cult and its reliquaries, AD 1000-2000 | Glenn, Virginia | Article in Book | | 2009 |
| St. Fin Barre's cathedral | | Monograph or Collective Volume | Eason & Son | 1984 |
| St. Fin Barre's cathedral : historical and descriptive | Robinson, Andrew C. | Monograph or Collective Volume | Guy and Co. | 1897 |
| St. Finbarr's, Carrickmacross : a short history | Sutcliffe, John | Monograph or Collective Volume | | 1990? |
| St. Finnian's, Cregagh : the story of the first fifty years 1932-1982 | Hammond, David | Monograph or Collective Volume | [David Hammond] | 1982 |
| St. Flannan's Cathedral, Killaloe | Bourke, F. R. | Article in Journal | | 1980 |
| St. George’s Church, Grange Sylvae, Goresbridge, Co. Kilkenny | Whitford-McDonald, Emily | Article in Book | | 2013 |
| St. James Graveyard | MacMahon, Bryan,Moriarty, James | Article in Book | | 2012 |
| St. John's / Waterford | Daly, Paul | Article in Journal | | 2008 |
| St. John's Church Kilnamanagh, and a short paper on the Oxford Movement. Church of Ireland. Diocese of Ferns | Hall, William John | Monograph or Collective Volume | E. J. Rickard (Printer) | 1956 |
| St. John's Church, Islandmagee 1595-1986 : a short history | Waring, Joseph | Monograph or Collective Volume | [St John's Church, Islandmagee] | 1986 |
| St. John's Church, Kilteevogue, 1879-1979 | Carson, G. J. A. | Monograph or Collective Volume | [St. John's Church, Kilteevogue] | 1979 |
| St. John's Church, Mounttown | McGovern, Brendan | Article in Journal | | 2010 |
| St. John's Church, Newcastle : a brief history, 1832-1982 | Jackson, J. G. | Monograph or Collective Volume | [St John's Church] | 1982 |
| St. John's friary, Athy | Hannon, T. J. | Article in Journal | | 1895 |
| St. Jude's Parish Church, Ballynafeigh: a record of the first hundred years 1873-1973 | McCarter, Norman | Monograph or Collective Volume | [St Jude's parish] | 1973 |
| St. Laurence O'Toole and the Anglo-Norman invasion | O'Doherty, J. F. | Article in Journal | | 1937 |
| St. Laurence O'Toole and the Anglo-Norman invasion | O'Doherty, J. F. | Article in Journal | | 1938 |
| St. Mark's Church Pearse Street : a history to mark its bi-centenary Year, with calendar, year book and blotter | Barr, D. J. O. | Monograph or Collective Volume | The Ecclesiastical Press Ltd. | 1957 |
| St. Mark's Dundela, Diocese of Down : its annals and archives | | Monograph or Collective Volume | S.P.C.K. | 1932 |
| St. Mark's Killylea 1832-1982 : a short history of Killylea Parish, its church and people | Henderson, Isobel | Monograph or Collective Volume | C. R. Print | 1982 |
| St. Mary's Abbey, Ballyhaunis | O'Connor, John | Monograph or Collective Volume | Augustinian Community | 1983 |
| St. Mary's Cathedral (Church of Ireland) Tuam : an architectural, archaeological and historical guide | | Monograph or Collective Volume | Friends of St. Mary's Cathedral | 1996 |
| St. Mary's Cathedral, Limerick | Dowd, James, Rev., | Monograph or Collective Volume | George McKern & Sons | 1899 |
| St. Mary's Cathedral, Limerick : unpublished correspondence of the cathedral restoration in the nineteenth century | Mulvin, Lynda | Article in Journal | | 2001 |
| St. Mary's Cathedral, the organ : a short history with specifications | Brislane, B. A. | Monograph or Collective Volume | McKerns Printing | 1971 |
| St. Mary's Catholic Church and Ballyheigue Parish | MacMahon, Bryan | Article in Book | | 2012 |
| St. Mary's Church Cong : a history | Clesham, Brigid | Monograph or Collective Volume | Family Research Centre | 1994 |
| St. Mary's church, Bannow, in 1840 | de Vál, Séamas S. | Article in Journal | | 2013 |
| St. Mary's Church, Julianstown | Daly, Bernie | Monograph or Collective Volume | [St. Mary's Church, Julianstown] | 1995 |
| St. Mary's Collegiate Church Youghal : a brief outline of its history, with some account of its main features | | Monograph or Collective Volume | St. Mary's Church | 1956 |
| St. Mary's Parish Church, Killarney | | Monograph or Collective Volume | [St Mary's Parish Church] | no date given |
| St. Mary's parish church, Newry : its history, memorials, vicars, curates, and churchwardens | Reside, S. Wilson | Monograph or Collective Volume | Newry Telegraph Office [Printer] | 1933 |
| St. Mary's, Church of Ireland, Kilmessan: a short history | Gannon, Mary | Monograph or Collective Volume | | 2011 |
| St. Mary’s Church of Ireland Shinrone | Committee members | Monograph or Collective Volume | St. Mary’s Church of Ireland Shinrone | 2020 |
| St. Matthew's Church, Shankill Parish, Belfast, 1872-1972 | Campbell, A. J. E. | Monograph or Collective Volume | [St. Matthew's Church, Shankill Parish] | 1972 |
| St. Michael's Church - Drumlion - Co. Roscommon, 1856-2006 : church, people and landscape | | Monograph or Collective Volume | Drumlion sesquicentennial Committee | 2006 |
| St. Michael's Church Limerick, 1844-1944 | Jackson, R. Wyse, Rev. | Monograph or Collective Volume | McKern's | 1944 |
| St. Molua's Church, Magheracloone : a short history | Sutcliffe, John L. | Monograph or Collective Volume | | 1990? |
| St. Multose church, Kinsale, as it was, as it is, and as it ought to be. | | Monograph or Collective Volume | Guy and Co. | 1895 |
| St. Patrick and Armagh | Ó Fiaich, Tomás | Article in Journal | | 1958 |
| St. Patrick and Ireland | Corish, Patrick J. | Article in Journal | | 1961 |
| St. Patrick at Glastonbury | Finberg, Herbert Patrick Reginald | Article in Book | | 1969 |
| St. Patrick's Cathedral Armagh | | Monograph or Collective Volume | Ulster Gazette | 1932 |
| St. Patrick's Cathedral in the age of Swift, 1690-1745 | Barnard, T. C. (Toby Christopher) | Article in Book | | 2009 |
| St. Patrick's Church 1864-1964 | French, Samuel | Monograph or Collective Volume | St. Patrick's Church | 1964 |
| St. Patrick's Church Jordanstown, 1868-1958 | McCappin, William J., Rev. | Monograph or Collective Volume | Northern Whig (printer) | 1958 |
| St. Patrick's Church Jordanstown, 1868-1993 | McCappin, William J., Rev.,Rodgers, Derek | Monograph or Collective Volume | Regency Press (printer) | 1993 |
| St. Patrick's Church, Ballymena : centenary sounvenir of consecration, 1855-1955 | Craig, C. H. B., Rev. | Monograph or Collective Volume | [St Patrick's Church] | 1955 |
| St. Patrick's Church, Ballymena: Centenary souvenir : St Patrick's day, 1853-1953 | St. Patrick's Church | Monograph or Collective Volume | Ecclesiastical Press | 1954 |
| St. Patrick's church, Castle Archdale: a centenary celebration | Chambers, Richard W. | Monograph or Collective Volume | Richard W. Chambers | 2008 |
| St. Patrick's Church, Donabate : centenary celebration | Bates, Peadar | Monograph or Collective Volume | St. Patrick's Church Centenary Committee | 2003 |
| St. Patrick's Church, Monaghan | Berry, Ian | Monograph or Collective Volume | [St Patrick's Church] | 2002 |
| St. Patrick's parish church, Newry, 1578 AD-1978 AD : a short historical guide | Heasley, S. J. | Monograph or Collective Volume | [J. Hollywood Printers] | 1978 |
| St. Patrick's Purgatory : two versions of Owayne Miles and the Vision of William of Stranton together with the long text of the Tractatus de purgatorio Sancti Patricii | | Monograph or Collective Volume | Oxford University Press for the Early English Text Society | 1991 |
| St. Patricks Church Aughawillan 1870-2020 | Quinn, Des | Monograph or Collective Volume | St. Patrick's Church Aughawillan | 2020 |
| St. Paul's church, Bray | Turner, M. K. (Kathleen) | Article in Journal | | 1977 |
| St. Peter's : cathedral church of Down and Connor, 1866-2005 | Tracey, DanWard, Sally | Monograph or Collective Volume | [s.n.] | 2005 |
| St. Peter's Church of Ireland Drogheda : a history | Drogheda Union of Parishes | Monograph or Collective Volume | Drogheda Union of Parishes | 2002 |
| St. Peter's parish and the town of Drogheda : a short historical sketch | L., P. | Monograph or Collective Volume | Drogheda Independent Co. | 1913 |
| St. Polycarp's Church, Finaghy: the first fifty years, a brief history 1932-1982 | Hall, James R. | Monograph or Collective Volume | [Finaghy parish] | 1982 |
| St. Saviour's Church Arklow | Whiteside, Lesley | Monograph or Collective Volume | St. Saviour's Arklow | 1997 |
| St. Severin and St. Patrick : a parallel | Bieler, Ludwig | Article in Journal | | 1955 |
| St. Simon's: 50 years, 1930-1980 | Mason, Edwin | Monograph or Collective Volume | [St Simon's parish] | 1980 |
| St. Werburgh's Church | O'Neill, Michael | Article in Journal | | 2012 |
| St. Willibrord and Ireland | Janssens, H. | Article in Journal | | 1952 |
| St. Wolstan's | Kirkpatrick, W. T. | Article in Journal | | 1899 |
| Staging 1916 in 1966 : pastiche, parody and problems of representation | Roche, Anthony | Article in Book | | 2007 |
| Stained glass in Enniskillen churches | Rogers, Frank | Article in Journal | | 2004 |
| Stained-glass windows in Clonown church | Murray, Patrick | Article in Book | | 2016 |
| Stair eaglasta Bhaile na Finne | Pádraig Ó Baoighill | Article in Journal | | 2012 |
| State of Raphoe diocese in early 1880s from the documents of 'De Propaganda Fide' | Anonymous | Article in Journal | | 1987 |
| State of the diocese of Kildare and Leighlin - 1800 A.D. | Crowe, Austin | Article in Journal | | 1977 |
| Statement issued by the cardinal primate and the archbishops and bishops of Ireland on the condition of their country | Anonymous | Article in Journal | | 1942 |
| Statement of the Irish hierarchy on the condition of the country | Anonymous | Article in Journal | | 1942 |
| Statement with reference to the efforts made to revive the ancient Bishoprick of Clogher | | Monograph or Collective Volume | W.&G. Baird | 1884 |
| Statuta ecclesiae antiqua and the Gallic councils in the Hibernensis | Davies, Luned Mair | Article in Journal | | 2000 |
| Statutes of the provincial synod of Cashel, 1661 | | Article in Journal | | 1966 |
| Steering clear : broadcasting and the Church, 1926-1951 | Lynch, Brian | Article in Journal | | 2000 |
| Steps on my pilgrim journey : memories and reflections | Daly, Cathal B. | Monograph or Collective Volume | Veritas | 1998 |
| Stereotype blasting : Alan McMonagle as satirist and visionary | Terrazas, Malania | Article in Journal | | 2020 |
| Stewart Parker : a life | Richtarik, Marilynn J. | Monograph or Collective Volume | Oxford University Press | 2012 |
| Stone, stucco and papier mâché : fan vaulting from Henry VII's chapel, Westminister Abbey, to Monkstown parish church | McDonnell, Joseph | Article in Book | | 2008 |
| Stonework in Ardmore | Mulcahy, Michael | Article in Journal | | 1986 |
| Stop-Chamfers. The finishing touches of the masons in some medieval churches in Clare | Kearns, Mary
| Article in Journal | | 2012 |
| Storia religiosa dell'Irlanda | | Monograph or Collective Volume | Centro Ambrosiano | 2001 |
| Strabane in the wider world - famous people from the area | Bradley, Jim | Article in Book | | 2000 |
| Strange sermons, 1840-41 : a turbulent priest in Barndarrig and Kilbride | Hannigan, Ken | Article in Journal | | 2015 |
| Stratégie électorale et construction d'image: les spots télévisés de 'Fianna Fáil' pour les législatives de Mai 2007 | Haigron, David | Article in Journal | | 2008 |
| Strategies of lordship in pre-Norman and post-Norman Leinster | Flanagan, Marie Therese | Article in Journal | | 1998 |
| Structures of import: St Peter’s church, a unique sunken-floored structure and Dublin’s southern suburb | Duffy, Paul | Article in Book | | 2023 |
| Student community radio | Chambers, Catríona | Article in Book | | 2007 |
| Studies in Anglo-Saxon sculpture | Cramp, Rosemary | Monograph or Collective Volume | Pindar | 1992 |
| Studies in Irish legal history | Osborough, W. N. (William Nial) | Monograph or Collective Volume | Four Courts | 1999 |
| Studies in the history of classical teaching, Irish and Continental, 1500-1700 | Corcoran, Timothy Joseph, 1872-1943 | Monograph or Collective Volume | | 1911 |
| Studies in the layout, buildings and art in stone of early Irish monasteries | Herity, Michael | Monograph or Collective Volume | Pindar | 1995 |
| Studies in Ulster history : the plantation of Ulster | Boyle, F. | Article in Journal | | 1934 |
| Studies of the liturgy of the early Irish church | Hennig, John | Article in Journal | | 1951 |
| Studying early Christian sculpture in England and Ireland : the object of art history or archaeology? | Hawkes, Jane | Article in Book | | 2009 |
| Studying Early Christian sculpture in England and Ireland: The object of art history or archaeology? | Hawkes, Jane | Article in Journal | | 2009 |
| Style over substance : architectural fashion and identity building in medieval Ireland | Ní Ghrádaigh, Jenifer | Article in Book | | 2012 |
| Styled 'boy-bishop' of Ferns : the life and turbulent times of James Keating, 1783-1849 | Rafferty, Celestine | Article in Journal | | 2010 |
| Subverting the flapper : the unlikely alliance of Irish popular and ecclesiastical press in the 1920s | Valiulis, Maryann Gialanella, 1947- | Article in Book | | 2004 |
| Sulle strade del Mondo: monaci irlandesi in Europa e in Italia: alle radici della storia Europea|On the pathways of the world: Irish monks in Europe and Italy: at the roots of European history | Farinella, Enzo | Monograph or Collective Volume | Casa Italia | 2015 |
| Summary report on the excavations at St Mary’s cathedral, Limerick, 1992 | Hodkinson, Brian | Article in Journal | | 1996 |
| Supply elasticities in Irish agriculture : a reply | Ó Gráda, Cormac | Article in Journal | | 1980 |
| Supply elasticities, rationality, and structural change in Irish agriculture, 1850-1925 | Dziegiclewski, M.Nicholas, S. J. | Article in Journal | | 1980 |
| Survey of recent publications : III, Ecclesiastical history | Ó Fiaich, Tomás | Article in Journal | | 1954 |
| Surveys of Ireland in the seventeenth century | McLaughlin, P. J. | Article in Journal | | 1950 |
| Survivals of organisation of the early Irish church in late medieval and early modern Irish society | Barry, John | Thesis | | 1949 |
| Surviving Death: Spiritual and Somatic Resurrection and Elements of Pauline Eschatology in the Hiberno-Latin Tradition | Millin, Nathan | Thesis | | 2013 |
| Swift : the man, his works, and the age. 3 vols. | Ehrenpreis, Irvin | Monograph or Collective Volume | Methuen | 1983 |
| Swift as an ecclesiastical statesman | Beckett, J. C. (James Camlin) | Article in Book | | 1949 |
| Swift, the church, and the “improvement of Ireland” | Hayton, D. W. (David William) | Article in Book | | 2013 |
| Swifts's deanery income : a new document | Landa, Louis A., 1901- | Article in Book | | 1949 |
| Sword and mitre : government and episcopate in France and England in the age of aristocracy | Ravitch, Norman | Monograph or Collective Volume | | 1966 |
| Swords and district : the political and ecclesiastical background, fifth to twelfth centuries | Mac Shamhráin, Ailbhe | Article in Book | | 2016 |
| Sylvester Lloyd, O.F.M., bishop of Killaloe, 1728-1739 | Murphy, Ignatius | Article in Journal | | 1987 |
| Synod of Bishops 1990 : formation of priests | Lovatt-Dolan, Elizabeth | Article in Journal | | 1990 |
| Synod of Rathbreasail | Anonymous | Article in Journal | | 1986 |
| Synodus II Patricii and vernacular law | Ó Corráin, Donnchadh | Article in Journal | | 2002 |
| Tadhg Mac Eochaidh, easbog Chluain Fearta, 1678-1687 | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1944 |
| Tahilly monastic site and High Cross | Bracken, AngelaDalton, Michael | Article in Book | | 2015 |
| Taisceadán na gCuimni | Hastings, Catríona | Article in Journal | | 2006 |
| Tales from the crypt : the medieval stonework of Christ Church cathedral, Dublin | Moss, Rachel | Article in Book | | 2002 |
| Tallaght, in the County Dublin | Fitzgerald, Walter, Lord | Article in Journal | | 1908 |
| Tamlaght Parish Church : a short history | Doherty, William Herbert | Monograph or Collective Volume | Forge Books | 1984 |
| Tánaise ríg : the earliest evidence | Dunn, Marilyn | Article in Journal | | 1999 |
| Taney : progress of a parish : a social and historical profile of the parish of Taney in Dublin | Robinson Tweed, Carol | Monograph or Collective Volume | O'Brien Press | 2018 |
| Tara: The literary and historical perspective|Appendix: List of topographical details extracted from E. Hogan's Onomasticon Goedelicum | Bhreathnach, Edel | Article in Journal | | 1993 |
| Teach Mo Chua — an early ecclesiastical site at Timahoe, Co. Laois | Corlett, Christiaan | Monograph or Collective Volume | Archaeology Ireland | 2018 |
| Teachtaireacht an Athar Eoghan | Ó Doibhlin, Breandán | Article in Journal | | 1964 |
| Téacsanna draíochta in Éirinn sa mheánaois luath. | Carey, John | Article in Book | | 2000 |
| Teampull na Bhfear nGonta or the Church of the Wounded Men | Talbot, Edgar | Article in Journal | | 1990 |
| Tech Saxan. An Anglo-Saxon monastic settlement in early medieval east Galway | Mannion, Joseph | Article in Journal | | 2008 |
| Television and Irish society : 21 years of Irish television | | Monograph or Collective Volume | Irish Film Institute and RTE | 1984 |
| Television coverage of Northern Ireland | Smith, Anthony | Article in Book | | 1996 |
| Telling our story : recording audiovisual testimonies from political conflict | McLaughlin, Cahal | Article in Book | | 2004 |
| Temple Finghin, and two unusual vourroirs from Clonmacnoise | Ní Ghrádaigh, Jenifer | Article in Journal | | 2005 |
| Temple House : from Templar castle to New English mansion | Naessens, PaulO'Conor, Kieran | Article in Book | | 2015 |
| Templemartin : a proud tradition | Ó Crualaoí, Sean | Monograph or Collective Volume | [St Martin's Church] | no date given |
| Templetrine Church, a history | O'Connell, Ruth | Monograph or Collective Volume | Templetrine parish | 1985 |
| Ten documents relating to Irish diocesan affairs, 1740-84, from Franciscan Library, Killiney | Giblin, Cathaldus | Article in Journal | | 1978 |
| Tensions over time: Conflicting understanding of monastic prayer in late-eighth-century-Armagh | Rumsey, Patricia | Article in Journal | | 2015 |
| Terence MacDonald (1810-1874), Tithe farmer, Jigginstown, Naas, County Kildare - a study of person and place | Robinson, James | Article in Journal | | 2011 |
| Terribilis est locus iste: hic domus Dei est et porta coeli : The north portal of Cormac's chapel, Cashel, Co. Tipperary | Ó Riain-Raedel, Dagmar | Article in Book | | 2012 |
| Territoriality and the cult of Saint Ciarán of Saigir | Connon, Anne | Article in Book | | 2016 |
| Terrorism on the BBC : the IRA on British television | Viera, John David | Article in Book | | 1991 |
| Text books of the penal day friars | O'Connell, W. D. | Article in Journal | | 1943 |
| TG4 | Ó Ciardha, Pádhraic | Article in Journal | | 2012 |
| Tg4 @ 10: deích mbliana de TG4 = ten years of TG4 | | Monograph or Collective Volume | Clo Iar-Chonnachta | 2008 |
| That Old Time Religion | Logue, Rose Mary | Article in Journal | | 2010 |
| The "Irish Monastery" at North Salem, New Hampshire | Hencken, Hugh O'Neill | Article in Journal | | 1939 |
| The "Monasticon Hibernicum Project" : a research tool for early and medieval ecclesiastical settlement in Ireland | Mac Shamhráin, Ailbhe | Article in Journal | | 2008 |
| The 'Altus prosator' and the discovery of America | Szövérffy, Joseph | Article in Journal | | 1963 |
| The 'Cathedral', Temple Kelly and Temple Ciarán: notes from the annals | MacDonald, Aidan | Article in Book | | 2003 |
| The 'James Flannelly Chalice' : a seventeenth century chalice from the diocese of Killala | Chapple, Robert M. | Article in Journal | | 2000 |
| The 'market cross' at Glendalough | Ó Floinn, Raghnall | Article in Book | | 2011 |
| The 'new' church at Shanballymore | Condon, Gerard | Article in Journal | | 2009 |
| The 'oxygen of publicity' and the suffocation of censorship: British newspaper representations of the British broadcasting ban (1988-94) | Pettigrew, Max | Article in Book | | 2017 |
| The 'private ' books of the Bobbio catalogue | Stansbury, Mark | Article in Book | | 2015 |
| The 'Processus Datariea' and the appointment of Irish bishops in the seventeenth century | Giblin, Cathaldus | Article in Book | | 1957 |
| The 'Rebaptism' of Suibhne | Frykenberg, Brian | Article in Journal | | 2017 |
| The 'tithe war' in Co. Longford in the 1830s | O'Ferrall, Fergus | Article in Journal | | 2013 |
| The 'Wesley' silver | Kingston, Gillian | Article in Book | | 2012 |
| The 1562 collapse of the nave and its aftermath | Stalley, Roger | Article in Book | | 2000 |
| The 1830s tithe riots | Higgins-McHugh, Noreen | Article in Book | | 2011 |
| The 1990 Synod of Bishops : priestly formation | Dalton, William | Article in Journal | | 1990 |
| The 20th century : an age of change and challenge | Forde, Walter | Article in Book | | 1999 |
| The Abbey Church of Bangor | Scott, Charles | Monograph or Collective Volume | W. & G. Baird | 1882 |
| The Abbey of Kilnalahan | Dalton, J. P. | Article in Journal | | 1911 |
| The Abbey of Kilnalahan—II | Dalton, J. P. | Article in Journal | | 1909 |
| The Abbey of Molana, Co. Waterford | Power, Patrick | Article in Journal | | 1932 |
| The abbey of St Thomas the martyr and the le Brun family: piety and patronage in Anglo-Norman Dublin | Foley, Áine | Article in Book | | 2019 |
| The Abbey of St Thomas the Martyr, Dublin|Mainistir Thomáis Mairtíreach, Baile Átha Cliath | Foley, Áine | Monograph or Collective Volume | Dublin City Council | 2017 |
| The abbey of the Port of St Maria, Dunbrody, Co. Wexford: an architectural study | Stout, Geraldine | Article in Book | | 2016 |
| The abbot and the monastic community in the Gaelic churches, 550 to 800 | Pettiau, Hérold | Article in Book | | 2006 |
| The act book of the Armagh diocese, 1518-22: a text and introduction | McCafferty, John | Thesis | | 1992 |
| The Act Book of the Diocese of Armagh, 1518-1522 : PRONI, MS DIO/4/2/11 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2020 |
| The activities and personnel of the general committee of the Catholics of Ireland, 1767-84 | MacGeehin, Maureen | Thesis | | 1952 |
| The administration of John Bole, archbishop of Armagh, 1447-1471 | Lynch, Anthony | Article in Journal | | 1991 |
| The administration of religion in medieval Kilkenny | O'Keeffe, Gerry | Article in Journal | | 2015 |
| The administration of the diocese of Dublin during the eighteenth century | Kennedy, Raymond Thomas | Thesis | | 1970 |
| The adventures of Milo Sweteman, archbishop of Armagh 1361-1380 | Smith, Brendan, 1963- | Article in Journal | | 1996 |
| The advowson of the chapel of St. John of Kilbridge Co. Meath | Butler, Theobald Blake | Article in Journal | | 1982 |
| The Afterlife of the Rural Medieval Parish Church in Ireland: To What Extent Did Medieval Parish Church Buildings Survive into the Early Nineteenth Century? | O Neill, Michael | Article in Book | | 2021 |
| The age of Pio Nono : the age of Paul Cullen | Duffy, Eamon, 1947- | Article in Book | | 2011 |
| The age of the Viking wars (9th and 10th centuries) | De Paor, Liam | Article in Book | | 1967 |
| The aldermen of Skinner's alley | Kingston, John | Article in Journal | | 1957 |
| The alliance between church and state in early medieval Alba | Veitch, Kenneth | Article in Journal | | 1998 |
| The alternating dynasties, 734-1022 | Dalton, G. F. | Article in Journal | | 1976 |
| The Ancient and present state of the Skelligs, Blasket Islands, Donquin and the west of Dingle, containing a natural, civil, ecclesiastical history thereof, accompanied by interesting historical notices on the ancient remains thereon, with a brief account of the state of religious life and society in Dingle, Ventry and the Blaskets before and after 1845 | Foley, Patrick | Monograph or Collective Volume | An Clóchumann, teóranta] | 1903 |
| The ancient chapter-house of the priory of the Holy Trinity, Dublin | Drew, Thomas | Article in Book | | 1990 |
| The ancient Church and Parish of S. Michan : a sermon preached in S. Michan's Church, Dublin, on Sunday, May 10th, 1891 | Walsh, Robert | Monograph or Collective Volume | J. Charles & Son | 1891 |
| The Ancient Church of St. Nicholas, Carrickfergus, Diocese of Connor: A report to the Right Rev. Robert Knox, D.D., Lord Bishop of Down and Connor and Dromore | Drew, Thomas | Monograph or Collective Volume | W. Erskine Mayne|E. Posonby | 1872 |
| The ancient inscriptions of Kells | Macalister, R. A. S. (Robert Alexander Stewart) | Article in Journal | | 1934 |
| The ancient library of Cashel | Jackson, Robert Wyse | Article in Journal | | 1947 |
| The ancient see-lands of the bishop of Cork in the northern suburbs | Ó Buachalla, Liam | Article in Journal | | 1965 |
| The Anglican Church in Ireland : prayers against Irish 'rebels' | Hennig, John | Article in Journal | | 1944 |
| The Annals of Connacht and Loch Cé and the monasteries of Boyle and Holy Trinity | O'Dwyer, B. W. | Article in Journal | | 1972 |
| The annals of John de Pembridge as a source for the history of Dublin and its hinterland | Williams, Bernadette | Article in Book | | 2023 |
| The annals of Loch Cé | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1940 |
| The antiphon, the banderol and the hollow ball : Sam Hanna Bell, 1909-1990 | Carson, Douglas | Article in Journal | | 1990 |
| The antiphonary of Bangor and the early Irish monastic liturgy | Curran, Michael | Monograph or Collective Volume | Irish Academic Press | 1984 |
| The antiquities of Clonmore, County Carlow | Fitzgerald, Walter, Lord | Article in Journal | | 1914 |
| The appointment of Bishop Michael Flannery and proposed revival of Roscrea diocese, 1858 | Murphy, Ignatius | Article in Journal | | 1984 |
| The appointment of Bishop Tyrrell and its consequences | Ó Fiaich, Tomás | Article in Journal | | 1955 |
| The appointment of blessed Oliver Plunket to Armagh | Ó Fiaich, Tomás | Article in Journal | | 1958 |
| The appointment of Catholic bishops in 19th century Ireland | Whyte, J. H. | Article in Journal | | 1962 |
| The appointment of Catholic Bishops to Killaloe Diocese, 1819-50 | Murphy, Ignatius | Article in Journal | | 1983 |
| The appointment of Coabh and Erenagh | Barry, J. G. | Article in Journal | | 1960 |
| The appointment of coarb and erenagh | Barry, J. G. | Article in Journal | | 1960 |
| The appointment of Octavian de Palatio as archbishop of Armagh, 1477-8 | Sughi, Mario A. | Article in Journal | | 1998 |
| The appointments of Patrick Curtis and Thomas Kelly as archbishop and coadjutor archbishop of Armagh | Macaulay, Ambrose | Article in Journal | | 1982 |
| The appointments of the archbishops of Armagh in the nineteenth century | Macaulay, Ambrose | Monograph or Collective Volume | Cumann Seanchais Ard Mhacha | 2008 |
| The archaeology of ecclesiastical estates in early medieval Ireland: a case study of the kingdom of Fir Maige | Ó Carragáin, Tomás | Article in Journal | | 2014 |
| The archaeology of medieval rural ecclesiastical settlement in the barony of Lower Dundalk, County Louth | Ryan, Vanessa | Thesis | | 2009 |
| The archaeology of the early medieval Celtic churches : an introduction | Edwards, Nancy | Article in Book | | 2009 |
| The archaeology of the early medieval Celtic churches : proceedings of a conference on the archaeology of the early medieval Celtic Churches, September 2004 | | Monograph or Collective Volume | Maney Publishing | 2009 |
| The archaeology of the Irish church in the eighth century | Hamlin, Ann | Article in Journal | | 1985 |
| The archaeology of the Irish Hospitaller preceptories of Mourneabbey and Hospital in context | Cotter, Eamonn | Article in Book | | 2015 |
| The archaeology of writing in the time of Adomnán | Campbell, Ewan | Article in Book | | 2010 |
| The archbishop and citizens of Dublin during Hugh de Lacy's Irish rebellion, 1223-4 | Brown, Daniel J. F. | Article in Book | | 2016 |
| The archbishops and administration of the diocese and province of Dublin, 1181-1298 | Murphy, Margaret | Thesis | | 1987 |
| The archbishops of Armagh and Drogheda's 'faire house', 1613-1783 | Usher, Robin | Article in Journal | | 2020 |
| The archbishops of Tuam, 1700-2000 | Waldron, Kieran | Monograph or Collective Volume | Nordlaw Books | 2008 |
| The archbishops, bishops and priests who served in the Archdiocese of Dublin : 1900 to 2011 | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 2012 |
| The archbishops, bishops and priests who served in the archdiocese of Dublin in the eighteenth century | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 2013 |
| The archbishops, bishops and priests who served in the archdiocese of Dublin in the nineteenth century | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 2013 |
| The archbishops, bishops and priests who served in the archdiocese of Dublin in the seventeenth century | Gaughan, J. Anthony, 1932- | Monograph or Collective Volume | Kingdom Books | 2010 |
| The archdeacon of Kells | Brady, John, d.1963 | Article in Journal | | 1947 |
| The archdeacons of Armagh 1417-71 | Lynch, A. | Article in Journal | | 1981 |
| The archdeacons of Kells | Brady, John, d.1963 | Article in Journal | | 1947 |
| The archdeacons of Meath | Brady, John, d.1963 | Article in Journal | | 1945 |
| The architectural history of the medieval cathedral | O'Neill, Michael | Article in Book | | 2009 |
| The architectural setting of the cult of relics in early medieval Ireland | Ó Carragáin, Tomás | Article in Journal | | 2003 |
| The architectural setting of the Mass in early medieval Ireland | Ó Carragáin, Tomás | Article in Journal | | 2009 |
| The Architecture and Art of British and Irish Catholicism | Proctor, Robert | Article in Book | Oxford University Press | 2023 |
| The architecture of Ireland : from the earliest times to 1880 | Craig, Maurice James | Monograph or Collective Volume | Batsford | 1982 |
| The architecture of Ireland from the earliest times to 1880 | Craig, Maurice James | Monograph or Collective Volume | Eason | 1989 |
| The architecture of St Patrick’s cathedral, Dublin | O'Neill, Michael | Article in Journal | | 1995 |
| The Architecture of the 'basilicae sanctorum' of Seventh-century Armach and Kildare | O'Keeffe, Tadhg | Article in Journal | | 2023 |
| The architecture of the cathedral and priory buildings, 1250-1530 | Stalley, Roger | Article in Book | | 2000 |
| The architecture of the Church of Ireland | O'Neill, Michael | Article in Book | | 2013 |
| The Architecture of the Valliscaulian Order in Scotland | Fawcett, Richard | Article in Book | | 2021 |
| The archives at Simancas as a source for Irish ecclesiastical history | Mooney, Canice | Article in Journal | | 1955 |
| The archives of the Catholic diocese of Ferns | De Vál, Séamas S. | Article in Journal | | 2005 |
| The Archives of the Church of Ireland - a retrospect | Refaussé, Raymond | Article in Journal | | 2005 |
| The Ardagh Boys' School | O'Mahoney, Michael | Article in Journal | | 2014 |
| The Ardagh chalice, numerology, and the Stowe missal | Berger, Pamela | Article in Journal | | 1979 |
| The Armagh diocesan archives | Murray, Raymond | Article in Journal | | 1974 |
| The Armagh registers : an under-explored source for late medieval Ireland | Cosgrove, Art | Article in Journal | | 1990 |
| The Armagh registers and the re-interpretation of Irish church history on the eve of the reformations | Jefferies, Henry A. | Article in Journal | | 1999 |
| The Armagh-Clogher dispute and the "Mellifont conspiracy" : diocesan politics and monastic reform in early thirteenth-century Ireland | Smith, Brendan, 1963- | Article in Journal | | 1991 |
| The arrest of Oliver Plunkett | Brady, John, d.1963 | Article in Journal | | 1954 |
| The arrivals of the Dominicans in Ireland in 1224 and the question of Dublin and Drogheda : the sources re-examined | Williams, Bernadette | Article in Book | | 2013 |
| The articles of the Church of Ireland of 1615 | Wallace, Raymond Leslie | Thesis | | 1949 |
| The arts : architecture, painting, sculpture | Henry, Françoise, 1902-1982 | Article in Book | | 1957 |
| The arts : literature, drama, music | Henry, Françoise, 1902-1982 | Article in Book | | 1957 |
| The assault on the Irish national tradition, 1560-1691 | Cahill, Edward | Article in Journal | | 1939 |
| The ASTI and post-primary education in Ireland 1909-84 | Coolahan, John | Monograph or Collective Volume | [s.n.] | 1984 |
| The ASTI and the secondary teachers strike of 1920 | Coolahan, John | Article in Journal | | 1984 |
| The Atherton file | Clarke, Aidan | Article in Journal | | 1979 |
| The attitude of contemporary Irish historical writers towards Rinuccini's excommunication of the supporters of the cessation with Inchiquin to the outbreak of the Remonsttrance controversy | Corish, P.J., Rev. | Thesis | | 1952 |
| The Augustinian abbey of St Mary the Virgin, Cong, Co. Mayo | Leask, H. G. (Harold G.) | Article in Journal | | 1941 |
| The Augustinian altar in Kentstown Church | Fleming, Eddie | Article in Journal | | 2014 |
| The Augustinian priory of Kells, Co. Kilkenny : an exploration : a visitor's guide and explanation | Tietzsch-Tyler, Daniel | Monograph or Collective Volume | K.R.E.T.E (Kells Region Economic & tourism Enterprise Ltd) | 1993 |
| The Ballina Workhouse - a lasting legacy | Zajac, Susan | Article in Journal | | 2012 |
| The Ballykissangelization of Ireland | Barton, Ruth | Article in Journal | | 2000 |
| The Bangors and Ballyculter: an historical sketch of the Parish of Ballyculter (Strangford) | Kennedy, William E. | Monograph or Collective Volume | [Mourne Observer] (printer) | 1980 |
| The baptismal font of Clonard, Co. Westmeath | Harris, Dorothy C. | Article in Journal | | 1940 |
| The Barnards | | Monograph or Collective Volume | James Hempton | 1897 |
| The basilica in early Ireland | Doherty, Charles | Article in Journal | | 1984 |
| The Bastides of southwest France : a reinvented urbanism | Abbé, Jean-Loup | Article in Book | | 2013 |
| The Bastille of Ireland. Kilmainham Gaol : from ruin to restoration | O'Dwyer, Rory | Monograph or Collective Volume | History Press | 2010 |
| The battle of the upper houses | MacDonagh, Michael | Article in Journal | | 1925 |
| The Bearnán Chúláin bell-shrine from Glenkeen, Co. Tipperary | Murray, Griffin | Article in Journal | | 2016 |
| The beginning of the veto controversy in Ireland | O'Brien, Gerard | Article in Journal | | 1987 |
| The beginnings of a national protectorate : curial cardinals and the Irish Church in the fifteenth century | Walsh, K. | Article in Journal | | 1974 |
| The beginnings of the Association of Church Archivists of Ireland | Leyden Leo | Article in Journal | | 2005 |
| The beginnings of the Christian Brothers : their relations with various ecclesiastical authorities | Fitzpatrick, J. D. | Article in Journal | | 1962 |
| The beginnings of the Irish language revival | Mooney, Canice | Article in Journal | | 1944 |
| The beligerent prelate : an alliance between archbishop Daniel Mannix and Eamon de Valera | Mannix, Patrick | Monograph or Collective Volume | Cambridge Scholars Publishing | 2013 |
| The bells of Saints Caillín and Cuana : two twelfth-century cups | Bourke, Cormac | Article in Book | | 2000 |
| The bells of St Mary's | Crowe, Finbar | Article in Journal | | 1984 |
| The Benedictines in medieval and early-modern Ireland | Ó Clabaigh, Colmán N. | Article in Book | | 2005 |
| The best newsmen we can expect? | Blondel, J. | Article in Book | | 2004 |
| The bi-centenary of Culloden, 1746-1946 | Hayes, Richard Francis | Article in Journal | | 1946 |
| The Bible and the Collectio Canonum Hibernensis | Sheehy, Maurice P. | Article in Book | | 1987 |
| The Bible in early modern Gaelic Ireland : tradition, collaboration and alienation | Caball, Marc | Article in Book | | 2015 |
| The Bible used by Adomnán | Picard, Jean-Michel | Article in Book | | 1987 |
| The biblical chronology of James Ussher | McCarthy, D. P. | Article in Journal | | 1997 |
| The biblical iconography of Irish Romanesque architectural sculpture | Harbison, Peter | Article in Book | | 1995 |
| The Big Book | Kostick, Conor | Article in Journal | | 2017 |
| The birthplace and life of St. Brigit of Kildare | Stubbs, F. W. | Article in Journal | | 1902 |
| The bishop in politics : life and career of John MacEvilly, Bishop of Galway 1857-81, Archbishop of Tuam 1881-1902 | Bane, Liam | Monograph or Collective Volume | Westport Historical Society | 1993 |
| The Bishop of Limerick's residence c.1650-1784 | Hodkinson, Brian | Article in Journal | | 2012 |
| The Bishop of Meath and the Ratoath imposter : Thomas Lewis O'Beirne (1748-1823) and Laurence Hynes Halloran (1765-1831) | Comerford, Patrick | Article in Journal | | 2005 |
| The Bishop remembered | Barry, John | Article in Journal | | 1993 |
| The Bishop's Palace, Kilkenny | The Integrated Conservation Group | Article in Journal | | 2003 |
| The bishops of Cork in the twelfth century | Gwynn, Aubrey | Article in Journal | | 1950 |
| The bishops of Ossory from the Anglo-Norman invasion to the present day | Moran, Patrick Francis, cardinal, 1830–1911 | Article in Journal | | 1883 |
| The Black Book of Limerick | Russell, C. W. (Charles William) | Article in Book | | 1872 |
| The Blackfriars of Trim, Co. Meath and the legacy of Geoffrey de Geneville | O'Carroll, Finola | Article in Book | | 2019 |
| The Book of Cloyne | | Monograph or Collective Volume | Cloyne Historical and Archaeological Society | 1977 |
| The Book of Fenagh | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1940 |
| The book of Kells : Reproductions of the manuscript in Trinity College, Dublin | Henry, Françoise, 1902-1982 | Monograph or Collective Volume | | 1974 |
| The Book of Kells, folio 114 | O'Reilly, Jennifer | Article in Book | | 2012 |
| The Book of Lecan | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1938 |
| The book of O'Donnell's daughter | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1937 |
| The Book of Obits of Christ Church cathedral, Dublin | Lennon, Colm | Article in Book | | 2006 |
| The Booles & the Hintons : two dynasties that helped shape the modern world | Kennedy, Gerry, 1943- | Monograph or Collective Volume | Atrium | 2016 |
| The boundaries of Clogher | Ó Maolagáin, Pádraig | Article in Journal | | 1953 |
| The bounds and extent of Irish parishes | Power, P. | Article in Book | | 1947 |
| The Breac Maodhóg : a unique medieval Irish reliquary | Murray, Griffin | Article in Book | | 2014 |
| The British background to the Irish Rebellion of 1641 | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Article in Journal | | 1988 |
| The British chronicles | Hughes, David | Monograph or Collective Volume | Heritage Books | 2007 |
| The British government and Archbishop Daniel Mannix | O'Brien, John | Article in Journal | | 1988 |
| The British Government and the appointment of Tomás Ó Fiaich as Archbishop of Armagh | Rafferty, Oliver P. | Article in Journal | | 2014 |
| The British problem and the English Civil War | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Article in Journal | | 1986 |
| The building of Bandon Methodist manse | Bateman, GeraldineHarper, LeslieKingston, Doris | Article in Journal | | 2016 |
| The building of Mount St. Joseph's Abbey Church | Hogan, Flannan | Article in Journal | | 1983 |
| The building of St Colman's Cathedral, Cobh | Wilson, Ann | Article in Journal | | 2004 |
| The building of St James' Durrus | Humphreys, Francis | Article in Book | | 1992 |
| The building of the parish church at Glenarm | McDonnell, Hector | Article in Journal | | 1982 |
| The building of two eighteenth-century chapels in the parish of Clonmellon | Fagan, Patrick, 1922-2011 | Article in Journal | | 1987 |
| The Buildings of Ireland : North west Ulster : the counties of Londonderry, Donegal, Fermanagh, and Tyrone. | Rowan, Alistair | Monograph or Collective Volume | | 1979 |
| The built environment and material culture of Ireland in the 1641 Depositions, 1600-1654 | Carlson, Heidi Julia | Thesis | | |
| The built environment of Drogheda, 1800-1850 : contrasting townscapes | McHugh, Ned | Article in Book | | 2023 |
| The burning of the church steeple | C., K. | Article in Journal | | 1996 |
| The Butler archbishops of Cashel | Morris, Thomas | Article in Journal | | 1955 |
| The Cahil propositions, 1629 | O'Connell, W. D. | Article in Journal | | 1943 |
| The Calculation of Columba's Arrival in Britain in Bede's Ecclesiastical History and the Pictish King-lists | Evans, Nicholas | Article in Journal | | 2008 |
| The Caledon Communion Paten | Batchelor, John | Article in Journal | | 2017 |
| The Callan image | McLaughlin, P. J. | Article in Journal | | 1964 |
| The Cambridge modern history, 4 : The thirty years' war | | Monograph or Collective Volume | | 1906 |
| The campaign for Catholic emancipation, 1823-9 | Doherty, Gillian M.,O'Riordan, Tomás | Article in Book | | 2011 |
| The Canterbury edition of the answers of Pope Gregory I to St Augustine | Deanesly, MargaretGrosjean, Paul | Article in Journal | | 1959 |
| The cardinal and the professor | Boyne, Patricia | Article in Journal | | 1990 |
| The career of John Prene, Archbishop of Armagh, 1439-43 | Lynch, Anthony | Article in Journal | | 2010 |
| The Career of Michael Boyle, Archbishop and Lord Chancellor of Ireland, 1660-86 | Coleman, Aiden | Thesis | | 2012 |
| The Carlow College priest : from Australasia to the Americas | McEvoy, John | Article in Book | | 2008 |
| The Carmelite order in pre-Reformation Ireland | O'Dwyer, Peter | Article in Journal | | 1969 |
| The Carnmoney connection : a history of Carnmoney Parish from 1796 - 1985 | Scott, Ernest V. | Monograph or Collective Volume | [Carnmoney Parish] | 1985 |
| The Caroline tradition in the Church of Ireland, with particular reference to Bishop J. Taylor | Bolton, F. R. | Monograph or Collective Volume | SPCK | 1958 |
| The Caroline tradition of the Church of Ireland, with particular reference to Bishop Jeremy Taylor | Bolton, F. R. | Monograph or Collective Volume | | 1958 |
| The case of the incorrigible canon: Dublin's first heresy conviction, 1310, and the rivalry between its cathedral chapters | Callan, Maeve B. | Article in Journal | | 2013 |
| The casting out of Shaw and Yeats | Murray, T. | Article in Journal | | 1946 |
| The catechism in Ireland : a survey | Brady, John, d.1963 | Article in Journal | | 1955 |
| The catechism in Irish : Bonaventure O'Hussey, O.F.M. | Wall, Thomas | Article in Journal | | 1942 |
| The cathedral and chapter of Meath | Brady, John, d.1963 | Article in Journal | | 1939 |
| The cathedral artists : a release of creative energy | Griffin, Eltin O. Carm | Article in Book | | 1998 |
| The Cathedral Church of Belfast | Thompson, Herbert Marshall | Monograph or Collective Volume | W. & G. Baird [Printer] | 1925 |
| The cathedral church of Saint Patrick : a history and description of the building | Bernard, J. H. (John Henry), 1860-1927Oulton, J. E. L. | Monograph or Collective Volume | Talbot Press | 1940 |
| The cathedral church of St Fachta | Peters, Christopher | Article in Journal | | 1999 |
| The cathedral church of St Fachtna, Ross | Webster, Charles A. | Monograph or Collective Volume | Guy & Co. | 1927 |
| The cathedral church of St Patrick | Bernard, J. H. (John Henry), 1860-1927 | Monograph or Collective Volume | | 1903 |
| The cathedral church of St Patrick Armagh | Anonymous | Monograph or Collective Volume | Cathedral Church of St Patrick | 1990 |
| The cathedral church of St. Colman's, Cloyne : historical and descriptive | Berry, Hugh F. | Monograph or Collective Volume | Guy & Co. | 1937 |
| The cathedral church of the Holy and Undivided Trinity of Down, Downpatrick | Parkinson, R.E. | Monograph or Collective Volume | Talbot Press (SPCK) [Printers] | 1958 |
| The cathedral church of the Holy Trinity Dublin (Christ Church) : a description of its fabric, and a brief history of the foundation, and subsequent changes | Butler, William, Sir | Monograph or Collective Volume | Elliot Stock | 1901 |
| The Cathedral of St Fin Barre at Cork : William Burges in Ireland | Lawrance, DavidWilson, Ann | Monograph or Collective Volume | Four Courts | 2006 |
| The Cathedral of the Assumption : an outline of its history | O'Toole, James | Article in Book | | 1989 |
| The cathedral renewed | Mc Redmond, Louis | Article in Book | | 1998 |
| The cathedrals of Ireland. Photographs by Cormac Simms | Galloway, Peter | Monograph or Collective Volume | | 1992 |
| The Catholic church | Kennedy, David | Article in Book | | 1957 |
| The Catholic Church and Ireland in the age of rebellion, 1859-73 | Norman, E. R. | Monograph or Collective Volume | Longmans | 1965 |
| The Catholic church in county Kilkenny 1600-1800 | Ó Ferghail, Fearghus | Article in Book | | 1990 |
| The Catholic clergy and Irish politics in the 1830s and 1840s | Nowlan, Kevin B. | Article in Book | NA | 1974 |
| The catholic clergy and popular politics in the dioceses of Cashel and Emly, 1823-48 | McGrath, Thomas G. | Thesis | | 1980 |
| The Catholic hierarchy and education, 1898-1908 | Wall, Patrick | Article in Journal | | 1981 |
| The Catholic parish of Bovevagh, Diocese of Derry | Donnelly, Philip | Article in Journal | | 2002 |
| The Catholic rent of 1829 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1942 |
| The Catholic synods in Ireland, 1600-1690 | Forrestal, Alison | Monograph or Collective Volume | Four Courts | 1998 |
| The Catholic synods: their influences and their influence, 1600-90 | Forrestal, Alison | Thesis | | 1996 |
| The Catholic University of Ireland | Wall, Thomas | Article in Journal | | 1954 |
| The Causes of the English Civil War : the Ford Lectures delivered in the University of Oxford, 1987-1988 | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Monograph or Collective Volume | | 1990 |
| The Céli Dé - monastic reforms in 8th and 9th century Ireland | McCafferty, John | Article in Journal | | 1989 |
| The Céli Dé reform | O'Dwyer, P. | Article in Book | | 1984 |
| The Celtic and Roman traditions : conflict and consensus in the early medieval church | Corning, Caitlin | Monograph or Collective Volume | Palgrave Macmillan | 2006 |
| The Celtic church : is this a valid concept? | Hughes, Kathleen Winifred | Article in Journal | | 1981 |
| The Celtic church of Killerrig, County Carlow | Ffrench, Rev. Canon | Article in Journal | | 1911 |
| The Celtic churches : a history, AD 200-1200 | McNeill, J. T. | Monograph or Collective Volume | Chicago University Press | 1974 |
| The Cemented with Love Controversy : Sam Thompson and the BBC in Northern Ireland | Hill, Andrew | Article in Journal | | 2007 |
| The centenary of the synod of Kells | Gwynn, Aubrey | Article in Journal | | 1952 |
| The chalices and books of Kilconnell abbey | Jennings, Brendan | Article in Journal | | 1944 |
| The champion's portion : feasting in the Celtic pre-Roman Iron Age | Fitzpatrick, Andrew P. | Article in Book | | 2009 |
| The Chancellorship of medieval Leighlin | O'Brien, Niall C.E.J. | Article in Journal | | 2019 |
| The changing monastic and political landscape of Ferns in context, twelfth to fifteenth century | Lafaye, Anne-Julie | Article in Book | | 2023 |
| The changing relationship of Ireland's regional press with the national broadcaster, RTÉ, 1961–2018 | Burke, Ray | Article in Book | | 2018 |
| The changing theory and practice of Irish pilgrimage | Hughes, Kathleen | Article in Journal | | 1960 |
| The chantry college, Ardee | Bradley, John, 1954-2014 | Article in Journal | | 1989 |
| The Chapel of Dublin Barracks : three essays with a common thread. I : The Riding House with a steeple : a puzzle connected with Dublin Barracks in the age of Lord Chesterfield; II : Methodist preaching at Dublin Barracks : Methodism and the Army; III : The Garrison Church, Arbour Hill | Ferguson, Kenneth | Article in Journal | | 2006 |
| The chapel of the ford, Belfast | Cassidy, WilliamLawlor, H. C. (Henry Cairnes), 1870-1943 | Article in Journal | | 1945 |
| The chapel of Trinity College Dublin | Whiteside, Lesley | Monograph or Collective Volume | Chapel Committee, Trinity College dublin | 1998 |
| The chapel school | Paterson, T. G. F. | Article in Book | | 2013 |
| The chaplaincy question : the Lord Lieutenant of Ireland versus the Belfast Lunatic Asylum | Griffiths, David V.Prior, Pauline M. | Article in Journal | | 1997 |
| The chapter-books of Cashel cathedral | Seymour, St. John D. | Article in Journal | | 1910 |
| The characteristic features of Irish architecture from early times to the twelfth century | Leask, H. G. (Harold G.) | Article in Journal | | 1936 |
| The Charter of Clare Abbey and the Augustinian 'Province' in Co. Clare | Mac Mahon, Michael | Article in Journal | | 1993 |
| The childhood of Scottish Christianity : a note on some place-name evidence | Barrow, Geoffrey Wallis Steuart, 1924- | Article in Journal | | 1983 |
| The choosing of Oliver Kelly for the See of Tuam, 1809-15 | Coen, Martin | Article in Journal | | 1978 |
| The Christ of Maghera : a preliminary study of the lintel of the old church of St Lurach at Maghera, County Derry | Crilly, Oliver | Article in Book | | 2000 |
| The Christian impact on early Ireland : place-names evidence | Flanagan, Deirdre | Article in Book | | 1984 |
| The Christianization of Society | Price, Huw | Article in Book | | 2003 |
| The Church | Davies, Richard Garfield | Article in Book | | 2003 |
| The church among two nations : Armagh on the eve of the Tudor reformations | Jefferies, Henry A. | Article in Journal | | 1998 |
| The Church and Parish hall of St Mary's, Kilkenny in the 1950s and 1960s. Interview with George Sherwood | Sherwood, George | Article in Journal | | 2013 |
| The church and secular society | Ó Corráin, Donnchadh | Article in Book | | 2010 |
| The church and the artist : practice and patronage, 1922-45 | Bhreathnach-Lynch, Síghle | Article in Journal | | 1991 |
| The Church and the Easter Rising | Rafferty, Oliver P. | Article in Journal | | 2016 |
| The church and the two nations in late-medieval Armagh | Watt, J. A. | Article in Book | | 1989 |
| The Church and the two nations in medieval Ireland | Watt, J. A. | Monograph or Collective Volume | University P. | 1970 |
| The church and tower house at Dowth, County Meath | Stout, Geraldine | Article in Book | | 2007 |
| The Church and war : papers read at the Twenty-first Summer Meeting and the Twenty-second Winter Meeting of the Ecclesiastical History Society | | Monograph or Collective Volume | | 1983 |
| The church at the end of the sixth century | Ryan, J. | Article in Journal | | 1951 |
| The church courts of Armagh on the eve of the Reformation | Jefferies, Henry A. | Article in Journal | | 1993 |
| The Church in Celtic Britain | Radford, Courtenay Arthur Ralegh, 1900-1998 | Article in Book | | 1965 |
| The church in Dublin : 1940-1965 | Burke Savage, Roland | Article in Journal | | 1965 |
| The church in early medieval Ireland in the light of recent archaeological excavations | | Monograph or Collective Volume | Wordwell | 2015 |
| The church in Gaelic Ireland : thirteenth to fifteenth centuries | Mooney, Canice | Monograph or Collective Volume | Gill & Macmillan | 1969 |
| The church in Gaelic Scotland before the Reformation | MacDonald, Iain G. | Article in Book | | 2014 |
| The Church in Ireland in the mid-fifteenth century | Flanagan, U. G. | Article in Journal | | 1952 |
| The church in Irish society, 400-800 | Hughes, Kathleen | Article in Book | | 2005 |
| The church in late medieval County Louth | Jefferies, Henry A | Article in Book | NA | 2023 |
| The Church in medieval Ireland | Watt, John | Monograph or Collective Volume | Gill & Macmillan | 1972 |
| The church in medieval Ireland | Watt, John A. | Monograph or Collective Volume | University College Dublin Press | 1998 |
| The Church in nineteenth century Louth | Murtagh, Michael | Article in Journal | | 2020 |
| The church in the English lordship, 1216-1307 | Hand, Geoffrey Joseph | Monograph or Collective Volume | Gill | 1968 |
| The Church in the English lordship, 1216-1307 | Hand, Geoffrey Joseph | Monograph or Collective Volume | Gill | 1968 |
| The church lands of the diocese of Dublin : reconstruction and history | MacCotter, Paul | Article in Book | | 2013 |
| The church lands of the diocese of Limerick: reconstruction and history | McCotter, Paul | Article in Journal | | 2013 |
| The church of Bearach, the grange of Baldoyle and the town of the dark stranger | Duffy, Paul | Article in Book | | 2016 |
| The church of Clonroche | McDonald, Tom | Article in Journal | | 2006 |
| The Church of Ireland : an illustrated history | | Monograph or Collective Volume | Booklink | 2013 |
| The Church of Ireland : ecclesiastical reform and revolution, 1800-85 | Akenson, Donald Harman | Monograph or Collective Volume | Yale University Press | 1971 |
| The Church of Ireland : St Saviour's Church, Arklow | Vanston, W. F. H. | Article in Journal | | 1984 |
| The Church of Ireland AD 432-1932. The Report of the Church of Ireland Conference held in Dublin, 11th-14th October, 1932, to which is appended on account of the commemoration by the Church of Ireland of 1500th anniversary of the landing of St Patrick | | Monograph or Collective Volume | | 1932 |
| The Church of Ireland and the Royal martyr : regicide and revolution in Anglican political thought, c.1660-c.1745 | Connolly, Sean J. | Article in Journal | | 2003 |
| The Church of Ireland and the third Home Rule bill | Scholes, Andrew | Monograph or Collective Volume | Irish Academic Press | 2009 |
| The Church of Ireland episcopate in the eighteenth century : an overview | Falvey, Jeremiah | Article in Journal | | 1993 |
| The Church of Ireland in Belfast its growth, condition, needs. The proposed division of the Diocese of Down and Connor and Dromore: the story of the churches, 1778-1931 / by John Frederick MacNeice.|Also a chapter on St Anne's Cathedral, Belfast, by His honour Judge Thompson | MacNeice, John Frederick | Monograph or Collective Volume | William Mullan & Sons | 1931 |
| The Church of Ireland in County Carlow, 1549-2000 | MacCarthy, R. B. (Robert B.) | Article in Book | | 2008 |
| The Church of Ireland in Victorian Dublin | Crawford, John, 1953-2011 | Monograph or Collective Volume | Four Courts | 2005 |
| The Church of Ireland parish of St. James | MacMahon, Bryan | Article in Book | | 2012 |
| The Church of Ireland Unions of Killinane and Kilconickny, Loughrea County Galway: A History | Kearney, Gerry | Monograph or Collective Volume | The author | 2015 |
| The Church of Ireland's apologetic position in the years before disestablishment | Prendergast, John P. | Article in Journal | | 1967 |
| The Church of Ireland's apologetic position in the years before disestablishment | Pinnington, J. E. | Article in Journal | | 1967 |
| The Church of Ireland: a guide to the United Dioceses of Cashel and Emly, Waterford and Lismore: disestablishment commemoration year 1970 | United Dioceses of Cashel and Emly, Waterford and Lismore | Monograph or Collective Volume | [United Dioceses of Cashel and Emly, Waterford and Lismore] | 1970 |
| The Church of Ireland: politics and social change | Burrows, MichaelMcDowell, John | Article in Book | | 2019 |
| The Church of Saint Patrick in Ulster: a short guide to history | Barry, John | Monograph or Collective Volume | The Diocesan Pilgimage Committee of Down and Dromore | 1961 |
| The church of St John the Evangelist, Dartrey : parish of Ematris, Co. Monaghan | Sirr, W. J. | Monograph or Collective Volume | | 1953 |
| The church of St. Lua or Molua, Friar's Island near Killaloe | Leask, H. G. (Harold G.) | Article in Journal | | 1930 |
| The church of St. Mary and all saints, Glanmire, Co. Cork, 1786-1986 | Glanmire parish | Monograph or Collective Volume | [Church of St Mary, Glanmire] | 1975 |
| The church of the Good Shepherd Sion Mills (parish of Urney) | [Davey, W. E.] | Monograph or Collective Volume | [Parish of Urney] | 1965 |
| The Church of the Immaculate Conception, Barefield. The stained glass windows. The people of Barefield and friends abroad | Kearns, Mary | Article in Journal | | 2009 |
| The Church of the Sacred Heart, Donnybrook : 150th anniversary | Pegum, Colette | Monograph or Collective Volume | Donnybrook Parish | 2016 |
| The church on the corner - Saint Donard's Parish 1900-1990 | Easton, Christopher R.A. | Monograph or Collective Volume | Ulster Services [Printer] | 1990 |
| The church on the Irish ridge : the decay of an Irish-American landmark | Creedon, Daniel | Article in Journal | | 2003 |
| The church on the West of the Bann : the story of Killowen Parish | Maconachie, Alwyn | Monograph or Collective Volume | A Bard Production | 1997 |
| The Church since emancipation : Church building | Kennedy, T. P. | Monograph or Collective Volume | Gill & Macmillan | 1970 |
| The Church since emancipation : Church reorganization | Cunningham, T. P. | Monograph or Collective Volume | Gill & Macmillan | 1970 |
| The Church since emancipation : Ecclesiastical learning | Corkery, John | Monograph or Collective Volume | Gill & Macmillan | 1970 |
| The church upon the hill : 1892-1992 | O'Loughlin, Joe | Monograph or Collective Volume | [s.n.] | 1992 |
| The church visible and one : a sermon preached before the general synod, May 1932 | Gregg, J. A. F. | Article in Book | | 2004 |
| The Church, 1050–1460 | Ó Clabaigh, Colmán N. | Article in Book | | 2018 |
| The churches and abbeys of Ireland | De Breffny, BrianMott, George | Monograph or Collective Volume | Thames & Hudson | 1976 |
| The churches and emigration from nineteenth-century Ireland | Roddy, Sarah | Thesis | | 2010 |
| The churches and plate of the Church of Ireland in the dioceses of Cashel, Emly, Waterford and Lismore | Butler, David J. | Article in Journal | | 2004 |
| The churches of Armagh | Davies, OliverPaterson, T. G. F. | Article in Journal | | 1940 |
| The Churches of Callan, ancient and modern | Shelly, Thomas | Article in Journal | | 1879 |
| The churches of Cork city : an illustrated history | O'Callaghan, Antóin | Monograph or Collective Volume | History Press Ireland | 2016 |
| The churches of county Cavan | Davies, Oliver | Article in Journal | | 1948 |
| The Churches of county Cavan | Davies, Oliver | Article in Journal | | 2013 |
| The Churches of county Cavan | Davies, OliverPaterson, T.G.F. | Article in Journal | | 2013 |
| The churches of County Clare and the origin of the ecclesiastical divisions in that county | Westropp, Thomas Johnston | Article in Journal | | 1900 |
| The churches of Doneraile | Shine, Michael | Article in Journal | | 1989 |
| The churches of Frederick Darley Jnr: identification and attribution | O'Brien, Colm | Article in Journal | | 2013 |
| The churches of medieval Ireland | Harbison, Peter | Article in Book | | 2008 |
| The churches of North Britain in the first Viking-age | Dumville, David N. | Monograph or Collective Volume | Friends of Whithorn Trust | 1997 |
| The Churches, Ireland and the Irish : papers read at the 1987 Summer Meeting and the 1988 Winter Meeting of the Ecclesiastical History Society | | Monograph or Collective Volume | Blackwell Publishers | 1989 |
| The churches, monasteries and burial grounds of the Burren | Swan, D. L. | Article in Book | | 1991 |
| The Churchwardens’ Accounts of the Parishes of St Bride, St Michael Le Pole and St Stephen, Dublin, 1663–1702 | | Monograph or Collective Volume | Four Courts Press | 2020 |
| The cillíní of Aughadown and Kilcoe parishes | Casey, William | Article in Journal | | 2014 |
| The Cistercial monasteries of Ireland revisited | Stalley, Roger | Article in Book | | 2012 |
| The Cistercian Abbey of St Mary de Castro Dei, Fermoy, Co. Cork | O'Sullivan, Denis | Article in Journal | | 1946 |
| The Cistercian abbey of St Mary de Fonte Vivo, diocese of Ross, Co. Cork | O'Sullivan, Denis | Article in Journal | | 1944 |
| The Cistercian abbeys of Tipperary | Donovan, FinbarrÓ Conbhuidhe, Colmcille | Monograph or Collective Volume | Four Courts | 1999 |
| The Cistercian monasteries of Ireland : an account of the history, art and architecture of the White Monks in Ireland from 1142 to 1540 | Stalley, Roger | Monograph or Collective Volume | Yale University Press | 1987 |
| The Cistercian settlement of Ireland | Carville, Geraldine | Article in Journal | | 1973 |
| The clergy and disestablishment | Clarke, Richard | Article in Book | | 2006 |
| The clergy and Fenianism, 1860-70 | Ó Fiaich, Tomás | Article in Journal | | 1968 |
| The clergy and the schools | Milne, Kenneth | Article in Book | | 2006 |
| The clergy of Dublin in 1695 | MacGrath, Kevin | Article in Journal | | 1950 |
| The clergy of the Church of Ireland, 1000-2000 : messengers, watchmen and stewards | | Monograph or Collective Volume | Four Courts | 2006 |
| The clergy of the Diocese of Derry : an index | Daly, Edward
Devlin, Kieran | Monograph or Collective Volume | Four Courts | 2009 |
| The clergy, 1780-1850 | Neely, W. G. (William G.) | Article in Book | | 2006 |
| The clerical lineages of Inis Cathaigh | McInerney, Luke | Article in Journal | | 2013 |
| The Clog Ban or the Bell of Ballinabeck | Chapman, Ross | Article in Journal | | 2003 |
| The Clog-na-fola and some early church hand bells in 'The Beresford Collection' | McAnallen, Brendan | Article in Journal | | 2017 |
| The cloister arcade from Cook Street, Dublin | Ó Héailidhe, P. | Article in Book | | 1988 |
| The Clones missal | Quigley, E. J. | Article in Journal | | 1921 |
| The Clonmel monastic extents of 1542 | O'Connell, P. | Article in Journal | | 1954 |
| The coarb and twelfth-century reform | Barry, J. G. | Article in Journal | | 1957 |
| The coarb in medieval times | Barry, J. G. | Article in Journal | | 1958 |
| The coarb in the mediaeval Irish church (circa 1200-1550) | Seymour, St. John D. | Article in Journal | | 1933 |
| The coarbs of Killaloe diocese | Gleeson, Dermot F. | Article in Journal | | 1949 |
| The Collectio Canonum Hibernensis - a Celtic phenomenon | Sheehy, Maurice P. | Article in Book | | 1982 |
| The college buildings | Hourihane, Daniel | Article in Journal | | 1945 |
| The college chapel in Maynooth | McNamara, Dominic | Article in Book | | 2012 |
| The collegiate church of Iniscathaigh | Gleeson, Dermot F. | Article in Journal | | 1940 |
| The collegiate church of St Nicholas, Galway : a study of the structure | Leask, H. G. (Harold G.) | Article in Journal | | 1936 |
| The Collegiate Church of St. Nicholas Galway | | Monograph or Collective Volume | Hely's Limited [printer] | c. 1942 |
| The Colophon Drawing in the Book of Mulling : A Supposed Irish Monastery Plan and the Tradition of Terminal Illustration in Early Medieval Manuscripts | Nees, L. | Article in Journal | | 1983 |
| The Columban onomastic legacy | Ó Muraíle, Nollaig | Article in Book | | 1997 |
| The Commentary on the psalms with glosses in Old-Irish preserved in the Ambrosian library (MS. C 301 inf.) / collotype facsimile | Best, R. I. (Richard Irvine), 1872-1959 | Monograph or Collective Volume | Hodges Figgis for the Royal Irish Academy | 1936 |
| The community of Clonard, sixth to twelfth centuries | Byrne, Paul | Article in Journal | | 1985 |
| The Composition for Tithes Act of 1823 : its revenue risk impacts across Ireland | Shaw, Daniel J. | Article in Journal | | 2018 |
| The conception, birth and growth of a national placenames authority | Ó Maolfabhail, Art | Article in Book | | 1998 |
| The Confession of St Patrick and the Confessions of St Augustine | O'Meary, John | Article in Journal | | 1956 |
| The Congregation of Propaganda and the publication of Dr O'Brien's Irish dictionary, 1768 | Jones, F. M. | Article in Journal | | 1952 |
| The Congregational church in Mallow | Rutherford, Colman | Article in Journal | | 2012 |
| The conservation of the Romanesque portal at Killaloe : exposing the history of one of Clare's finest carved doorways | Ellis, JasonMoss, Rachel | Article in Journal | | 1999 |
| The constitution of the United Kingdom of Great Britain and Ireland, civil and ecclesiastical | Plowden, Francis, 1749-1829 | Monograph or Collective Volume | | 1802 |
| The constitutions of the diocese of Cashel : "The New Psalter of Cashel" (1737) and three pastoral letters of Archbishop Christopher Butler | | Article in Journal | | 2002 |
| The construction of the Irish annals, 429-466 | Ó Buachalla, Liam | Article in Journal | | 1958 |
| The construction of the medieval cathedral, c.1030-1250 | Stalley, Roger | Article in Book | | 2000 |
| The contents of Mac Carthaigh's Book | Ó Fiaich, Tomás | Article in Journal | | 1950 |
| The continuing story of Irish television drama : tracking the tiger | Sheehan, Helena | Monograph or Collective Volume | Four Courts | 2004 |
| The continuity of education in Ossory for four centuries | Dowling, P. J. | Article in Journal | | 1956 |
| The contribution of Clara to the early days of radio | Goodbody, Michael | Monograph or Collective Volume | | 2023 |
| The contribution of Cliff College to the shaping of Irish Methodism in the twentieth century | Todd, S. Kenneth | Monograph or Collective Volume | | 2019 |
| The contribution of Hugo Cavellus OFM (d.1626) to the theory of the understanding of material individuals | Apollonio Fi, Alessandro M. | Article in Book | | 2009 |
| The contribution of Irish Franciscans on the Continent in the seventeenth century | Giblin, Cathaldus | Article in Book | | 1981 |
| The convention of Druim Ceat (A.U. 575) | Ryan, John | Article in Journal | | 1946 |
| The Convention of Druim Cett | Bannerman, John | Article in Journal | | 1966 |
| The conversion of Britain : religion, politics and society in Britain c.600-800 | Yorke, Barbara, 1951- | Monograph or Collective Volume | Pearson Longman | 2006 |
| The conversion of Connemara and conflict between Paul Cullen and John MacHale | Moffitt, Miriam | Article in Book | | 2011 |
| The conversion of the Barbarian peoples | Wood, Ian N. | Article in Book | | 1981 |
| The conversion of the Vikings of Dublin | Sheldon, Gwendolyn | Article in Book | | 2015 |
| The coppersmith and the caster: initial thoughts on Irish stone casting mould hoards | Boutoille, Linda | Article in Journal | | 2012 |
| The correspondence of Charles Brodrick (1761-1822), archbishop of Cashel | Jenkins, Deborah | Article in Journal | | 1980 |
| The Cound of Frights of the Margerd Davies | Roberts, Owain T. P. | Article in Journal | | 1999 |
| The country towns | Camblin, Gilbert | Article in Book | | 1957 |
| The Craven Widows, 1912-1916 | Bradley-Davies, HélèneO’Brien, Paul | Article in Book | | 2023 |
| The creation of RTE and the impact of television | Mac Conghail, Muiris | Article in Book | | 1984 |
| The creationof Knockbreda parish church and Belvoir Park | Mackey, Brian | Article in Book | | 2009 |
| The Creggan Presbyterian congregation | McMahon, Kevin | Article in Journal | | 2002 |
| The Crossdrum chalice - 1635 | O'Connell, Philip | Article in Journal | | 1947 |
| The crown of England, the common law, and conflict : the communities of Limerick, 1170-1270 | O'Byrne, Emmett | Article in Book | | 2009 |
| The Cult of Relics in Early Christian Ireland | Wycherley, Niamh | Thesis | | 2012 |
| The cult of St. Martin in Ireland | Gwynn, Aubrey | Article in Journal | | 1966 |
| The curious case of the Council of Sens (594/614) | Halfond, Gregory I. | Article in Journal | | 2021 |
| The current state of Catholic archives in Ireland : an overview | Sheehy, David C. | Article in Journal | | 1995 |
| The Czech Sokol gymnastic programme in Ireland, c. 1900-1950 | Samek, Daniel | Article in Book | | 2014 |
| The date and authorship of the Apgitir Chrabaid : some internal evidence | Ó Néill, P. P. | Article in Book | | 1987 |
| The date and dedication of the Tractatus de Purgatorio Sancti Patricii | Easting, Robert | Article in Journal | | 1978 |
| The date of the Ardagh chalice | Rynne, Etienne | Article in Book | | 1987 |
| The date of the round tower at Clonmacnoise | Manning, Conleth | Article in Journal | | 1997 |
| The dating of the early fourteenth-century ecclesiastical valuations of Ireland | Hand, Geoffrey Joseph | Article in Journal | | 1957 |
| The dating of the White Castle, Athy, Co. Kildare : an outlying bastion of the Pale | Murtagh, Ben | Article in Book | | 2011 |
| The Davisons, A century by the Roe | Kealey, Donal | Article in Journal | | 2005 |
| The day St Michael's Church was destroyed by fire, Wednesday 28th July 1965 | Clarke, Carl | Article in Journal | | 2007 |
| The De Burgo-O'Malley tomb and chantry chapel at Ballintubber Abbey, Co. Mayo. Parts 1-3 | Higgins, Jim | Article in Journal | | 2013 |
| The deaneries of St. Patrick's | Lawlor, H. J. | Article in Journal | | 1932 |
| The deanery of Tulach Óg | Ó Doibhlin, Éamon | Article in Journal | | 1971 |
| The death of Red Hugh O'Donnell | Mooney, Canice | Article in Journal | | 1954 |
| The decline of early Irish monasticism | Knox, R.B., Rev. | Thesis | | 1944 |
| The decline of early Irish monasticism | Knox, R. B. | Article in Journal | | 1945 |
| The demographic impact of Irish immigration on Birmingham Catholicism, 1800-1850 | Champ, J. F. | Article in Book | | 1989 |
| The depositions about the Irish rebellion of 1641 | Williams, Joseph Batterson [i.e. Muddiman, Joseph George] | Article in Journal | | 1920 |
| The Derrynaflan and other early Irish eucharistic chalices : some speculations | Ryan, Michael | Article in Book | | 1984 |
| The Derrynaflan hoard and early Irish art | Ryan, Michael | Article in Journal | | 1997 |
| The Derrynaflan paten : discovering an ancient theology | O'Loughlin, Thomas | Article in Book | | 2012 |
| The design of the early thirteenth-century cathedral church of Newtown Trim, Co. Meath | O'Keeffe, Tadhg | Article in Journal | | 2018 |
| The development of the church in the Diocese of Ferns in the twelfth and thirteenth centuries | Colfer, Billy | Article in Book | | 1999 |
| The development of the fertiliser industry in Ireland, 1840 to 1990 | Cooper, Mark | Thesis | | 1999 |
| The development of women’s ministry in the Church of Ireland | Kennerley, Ginnie | Article in Book | | 2019 |
| The devotional revolution in Ireland, 1850-75 | Larkin, Emmet | Article in Journal | | 1972 |
| The Diamond : a north Armagh parish | Fleming, W. E. C. | Monograph or Collective Volume | W.E.C. Fleming | 2009 |
| The Dindshenchas in Royal Irish Academy MS D ii 2 | Theuerkauf, Marie-Louise | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| The diocesan clergy of Ferns : some reflections | Gahan, John | Article in Book | | 1999 |
| The diocesan history of Killaloe, Kilfenora, Clonfert and Kilmacduagh [AD 639-AD 1886] | Cooke, Edward Alexander | Monograph or Collective Volume | Ponsonby and Weldrick | 1886 |
| The diocesan records of Cloyne, Co. Cork : an unlikely source of genealogical significance in the Representative Church Body Library, Dublin | Hood, Susan | Article in Journal | | 1997 |
| The diocesan school of Armagh & Connor : on the demolition of the building in Ballymena with an antecedent history in Carrickfergus | Dunlop, Eull | Article in Journal | | 1992 |
| The diocese of Cork and the great western schism | Bolster, M. A. | Article in Journal | | 1966 |
| The diocese of Dublin in the sixteenth century : clerical opposition and the failure of the Reformation | Murray, James | Article in Book | | 2000 |
| The diocese of Elphin : people, places and pilgrimage | Beirne, Francis | Monograph or Collective Volume | Columba | 2000 |
| The diocese of Elphin in 1637 | McGreevy, John | Article in Journal | | 1988 |
| The diocese of Emly | Seymour, St. John D. | Monograph or Collective Volume | | 1913 |
| The diocese of Kerry (formerly Ardfert) | Reidy, Donal A. | Monograph or Collective Volume | Catholic Truth Society | 1937 |
| The diocese of Kerry, formerly Ardfert: working in the fields of God | O'Shea, Kieran | Monograph or Collective Volume | Editions du Signe | 2005 |
| The diocese of Kilmore : bishops and priests, 1136-1988 | MacKiernan, Francis J. | Monograph or Collective Volume | | 1989 |
| The Diocese of Kilmore : c.1100-1800 | Kelly, Liam | Monograph or Collective Volume | Columba Press | 2017 |
| The diocese of Kilmore : its history and antiquities | O'Connell, Philip | Monograph or Collective Volume | Browne and Nolan | 1937 |
| The diocese of Kilmore, the Irish college in Paris and Alexander McCabe | Walsh, Micheline | Article in Journal | | 1979 |
| The diocese of Limerick in the twelfth century | Gwynn, Aubrey | Article in Journal | | 1946 |
| The diocese of Lismore, 1801-69 | MacCarthy, R. B. (Robert B.) | Monograph or Collective Volume | Four Courts | 2008 |
| The diocese of Meath : ancient and modern. 3 vols. | Cogan, Anthony, 1826-1872 | Monograph or Collective Volume | | 1862 |
| The diocese of Meath during the episcopacy of John Cantwell, 1830-1866 | Connell, Paul | Thesis | | 2002 |
| The diocese of Meath in the 18th century | Fagan, Patrick, 1922-2011 | Monograph or Collective Volume | Four Courts | 2001 |
| The diocese of Meath in the fifteenth century | French, Noel E. | Article in Journal | | 2012 |
| The diocese of Meath under Bishop John Cantwell, 1830-66 | Connell, Paul | Monograph or Collective Volume | Four Courts | 2004 |
| The Diocese of Ross | Webster, Charles A. | Monograph or Collective Volume | | 1924 |
| The diocese of Tir Brun (Kilmore) in the middle ages. Pt. 1 | Parker, Ciarán | Article in Journal | | 1997 |
| The disputed primacy of the medieval Irish church | Watt, J. A. | Article in Book | | 1988 |
| The dissolution to the foundation of St Anthony's College, Louvain, 1534-1607 | Lennon, Colm | Article in Book | | 2009 |
| The distinction between coarb and erenagh | Barry, J. G. | Article in Journal | | 1960 |
| The distribution of early medieval ecclesiastical sites in Ireland | Stout, Matthew | Article in Book | | 2012 |
| The Dominican Priory of saints Peter and Paul, Athenry: high-medieval history and architecture | McKeon, Jim | Article in Journal | | 2009 |
| The Dominicans in Ireland : a comparative study of the east Munster and Leinster settlements | Lafaye, Anne-Julie | Article in Journal | | 2015 |
| The Donegal churches of Liam McCormick | McLaughlin, Liam S. | Article in Journal | | 2011 |
| The double-armed cross on the church gable in Co. Clare | Harbison, Peter | Article in Journal | | 1976 |
| The Doughnambraher font : relic of an ancient ecclesiastical site? | MacMahon, Michael | Article in Journal | | 1984 |
| The downfall of the Woods family | Madden, Gerard | Article in Book | | 1993 |
| The dual of siun and delict - penance to God, penalty to men - a legal perspective | Bemmer, Jaqueline | Article in Journal | | 2018 |
| The Dublin annals of Prior John de Pembridge OP and his Dominican continuator : an account of Irish affairs, 1162-1370 | | Monograph or Collective Volume | Four Courts Press | 2024 |
| The Dublin city churches of the Church of Ireland | Wheeler, H. A. | Monograph or Collective Volume | A.P.C.K. | 1948 |
| The Dublin convention, the protestant community and the emergence of an ecclesiastical settlement in 1660 | McGuire, J. I. | Article in Book | | 1983 |
| The Dublin convention, the protestant community and the emergence of an ecclesiastical settlement in 1660 | McGuire, J. I. | Article in Book | | 1983 |
| The Dublin Diocesan Archives | Sheehy, David C. | Article in Journal | | 2005 |
| The Dublin liberties, 1600-1850 | Milne, Kenneth | Monograph or Collective Volume | Four Courts | 2009 |
| The duke of Wellington and Catholic emancipation | Machin, George Ian Thom | Article in Journal | | 1963 |
| The Dumnonii. (Address of the President) | Radford, Courtenay Arthur Ralegh, 1900-1998 | Article in Journal | | 1947 |
| The duties of Coarb and Erenach | Barry, J. G. | Article in Journal | | 1960 |
| The duties of coarbs and erenaghs | Barry, J. G. | Article in Journal | | 1960 |
| The dynastic ramifications of the Geraldines | MacCotter, Paul | Article in Book | | 2016 |
| The earliest Irish churches | Radford, Courtenay Arthur Ralegh, 1900-1998 | Article in Journal | | 1977 |
| The earliest monastic settlement, the church in Cloncurry | Holton, Karina | Article in Book | | 1999 |
| The earliest Presbyterian register of Waterford, 1761-1813 | | Article in Journal | | 1981 |
| The earliest records of Fermanagh | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1924 |
| The early Christian ecclesiastical sites of County Westmeath | Swan, Leo, 1930-2001 | Article in Book | | 1988 |
| The early Christian monastic enclosure at Tullylish, Co. Down | Ivens, R. J. | Article in Journal | | 1987 |
| The early Christians in Britain | Dodd, B. E.Heritage, T. C. | Monograph or Collective Volume | | 1966 |
| The early church | Walsh, John R. | Article in Book | | 2000 |
| The early church in Northumbria | Gallyon, M. | Monograph or Collective Volume | | 1977 |
| The early church in Offaly | FitzPatrick, Elizabeth | Article in Book | | 1998 |
| The early church in the south-west of Ireland : settlement and organisation | Hurley, Vincent | Article in Book | | 1982 |
| The early church in Wales and the West : recent work in early Christian archaeology, history and place-names | | Monograph or Collective Volume | | 1992 |
| The early church in western Britain and Ireland : studies presented to C.A. Ralegh Radford | | Monograph or Collective Volume | B.A.R. | 1982 |
| The early Dublin editions of Butler's 'Lives of the saints' | Ó Súilleabháin, Pádraig | Article in Journal | | 1963 |
| The early ecclesiastical complexes of Carrowmore and Clonca and their landscape context in Inishowen, county Donegal | Adams, MaxHaycock, DebO'Brien, ColmO'Meara, DonPennie, Jack | Article in Journal | | 2014 |
| The early history of Carlow college | Mac Suibhne, Peadar | Article in Journal | | 1943 |
| The early history of St. Thomas' Abbey, Dublin | Gwynn, Aubrey | Article in Journal | | 1954 |
| The early Irish church : problems of identification | Hamlin, Ann | Article in Book | | 1992 |
| The early Irish church : some observations on pastoral care and dues | Etchingham, Colmán | Article in Journal | | 1991 |
| The early Irish church and marriage : an analysis of the "Hibernensis" | Tatsuki, Akiko | Article in Journal | | 2001 |
| The early Irish Church and the Western patriarchate | Corish, Patrick J. | Article in Book | | 1984 |
| The early Irish churches : some aspects of organization | Ó Corráin, Donnchadh | Article in Book | | 1981 |
| The early Irish Stowe Missal's destination and function | Meeder, Sven | Article in Journal | | 2005 |
| The early mediaeval Gaelic lawyer | Charles-Edwards, T. M. (Thomas Mowbray) | Monograph or Collective Volume | Department of Anglo-Saxon, Norse and Celtic, University of Cambridge | 1999 |
| The early medieval church, Templemartin. New archaeological evidence | Herriott, David | Article in Journal | | 2020 |
| The early medieval ecclesiastical enclosures of Dublin: exploring their character, chronology and evolving function in light of excavations across Ireland. | Harney, Lorcan | Article in Book | | 2020 |
| The early monastic settlements in Killarney | Rourke, Grellan D. | Article in Book | | 2005 |
| The early penal days : Clogher under the administration of Hugh MacMahon, (1701-1715) | Jefferies, Henry A. | Article in Book | | 2005 |
| The early photographic study of the eighteenth century St. Fin Barre's Cathedral | Rynne, ColinWigham, Billy | Article in Journal | | 2002 |
| The early Tudor Reformations in the Irish Pale | Jefferies, Henry A. | Article in Journal | | 2001 |
| The East Window at Collon Church of Ireland | Rountree, John | Article in Journal | | 2021 |
| The Easter Controversy of late antiquity and the early middle ages : its manuscripts, texts and tables. Proceedings of the 2nd international conference on the science of computus in Ireland and Europe. Galway, 18-20 July, 2008 | | Monograph or Collective Volume | Brepols | 2011 |
| The Eastern Mediterranean and the Western provinces : a British perspective | Thomas, Charles | Article in Book | | 1994 |
| The ecclesiastical antiquities of Brigown : with a sketch of the life of St. Fíndchua : a lecture | Moore, Courtenay, Rev. | Monograph or Collective Volume | J. Charles & Son, Printer. At the office of the Irish Ecclesiastical Gazette | 1891 |
| The ecclesiastical architecture of Ireland | Petrie, George | Monograph or Collective Volume | | 1845 |
| The ecclesiastical architecture of Ireland anterior to the Anglo-Norman invasion, comprising an essay on the origin and uses of the round towers of Ireland | De Paor, LiamPetrie, George | Monograph or Collective Volume | [s.n.] | 1970 |
| The ecclesiastical architecture of Ireland to the close of the twelfth century | Brash, R. R. | Monograph or Collective Volume | [s.n.] | 1875 |
| The ecclesiastical element in the Old-Irish legal tract Cáin Fhuithirbe | Breatnach, Liam | Article in Journal | | 1986 |
| The ecclesiastical families of Cloyne | Ó Buachalla, Liam | Article in Journal | | 1945 |
| The ecclesiastical history of Hortland graveyard | Morrin, Olive | Article in Book | | 1999 |
| The ecclesiastical history of Ireland. From the earliest period to the present times. 2 vols. | Killen, W. D. | Monograph or Collective Volume | | 1875 |
| The ecclesiastical history of Laragh parish | Cunningham, Terence | Monograph or Collective Volume | The author | 1984 |
| The Ecclesiastical History of Orderic Vitalis, 5 : Books 9 and 10 | | Monograph or Collective Volume | | 1975 |
| The ecclesiastical history of the diocese of Meath ancient and modern | Cogan, Anthony, 1826-1872 | Monograph or Collective Volume | | 1874 |
| The ecclesiastical significance of the St Ninian's Isle treasure | McRoberts, D. | Article in Book | | 1965 |
| The ecclesiastical sites at Carrowmore in Inishowen | Lacy, Brian | Article in Journal | | 2010 |
| The ecclesiastical structure, 1714-60 | McCracken, J. L. | Article in Book | | 1986 |
| The economic and political ideas of James Fintan Lalor | O'Neill, Thomas Patrick | Article in Journal | | 1950 |
| The economics of nationalism | Kettle, T.M. | Article in Journal | | 1913 |
| The economy and industry of early medieval Clonmacnoise : a preliminary view | King, Heather | Article in Book | | 2009 |
| The effect of the French revolution on the Irish ecclesiastical students in Paris | O'Riordan, Mary C. | Thesis | | 1974 |
| The eighth centenary of St Bernard of Clairvaux | Morrison, S. St. Clair | Article in Journal | | 1953 |
| The embroidered cloths of heaven : the textiles | Heckett, Elizabeth Wincott | Article in Book | | 2004 |
| The emergence of the Irish Episcopal Conference 1788-1882 | Murphy, Pádraig | Article in Journal | | 2009 |
| The emergence of the Irish Episcopal Conference 1788-1882 | Murphy, Pádraig | Article in Journal | | 2009 |
| The emergence of the metropolitan see : Dublin, 1111-1216 | Mac Shamhráin, Ailbhe | Article in Book | | 2000 |
| The emergence of the national system of education in Co. Louth | O'Sullivan, Harold | Article in Journal | | 1973 |
| The end of history : the millennial urge in the plays of Sebastian Barry | Cummings, Scott T. | Article in Book | | 2000 |
| The end of the middle ages : Gothic survival in sixteenth-century Connacht | Stalley, Roger | Article in Journal | | 2003 |
| The end of the old order, 1745-1846 | Milne, Kenneth | Article in Book | | 2009 |
| The English reformation in Dublin | Jefferies, Henry A. | Article in Journal | | 2016 |
| The enlightened religion of Robert Clayton | Leighton, C. D. A. | Article in Journal | | 1995 |
| The enrichment of Church of Ireland churches with stained glass and decoration | Lawrence, David | Article in Book | | 2013 |
| The Ensors and the Session House, Roscommon Town | Siggins, Albert | Article in Journal | | 1994 |
| The episcopal succession in England, Scotland and Ireland, A.D. 1400 to 1875 | Brady, W. Maziere | Monograph or Collective Volume | Gregg | 1971 |
| The episcopal succession in Ireland during the first years of Elizabeth's reign | Murphy, N. | Article in Journal | | 1883 |
| The episcopal succession of Killaloe | Clancy, John | Article in Journal | | 1941 |
| The episcopal succession of Killaloe diocese | Gleeson, Dermot F. | Article in Journal | | 1942 |
| The Episcopal Union of Armagh and Clogher: a letter to the Earl of Erne from the Primate on the impolicy of dissolving it | Beresford, M. G. | Monograph or Collective Volume | McWatters [printer] | 1881 |
| The Erenagh in the monastic Irish church | Barry, John | Article in Journal | | 1958 |
| The Erenagh in the monastic Irish church | Barry, J. G. | Article in Journal | | 1958 |
| The erenagh in the monastic Irish church | Barry, J. G. | Article in Journal | | 1958 |
| The establishment of Tuam as an archdiocesan capital in the twelfth century | Murray, Griffin | Article in Book | | 2014 |
| The Eucharistic Congress, Dublin 1932 | O'Dwyer, Rory | Monograph or Collective Volume | Nonsuch | 2009 |
| The Evangelicals in the Church of Ireland, 1784-1859 | Acheson, Alan | Thesis | | |
| The evolution of Catholic parishes in Dublin city from the sixteenth to the nineteenth centuries | Ó Fearghail, Conchubhair | Article in Book | | 1992 |
| The evolution of Ferns Diocese | Culleton, Edward | Article in Book | | 1999 |
| The evolution of the Catholic parishes in County Wexford [part 1] | Culleton, Edward | Article in Journal | | 2007 |
| The Evolution of the Diocese of Killaloe | Mac Mahon, Michael | Article in Journal | | 2021 |
| The excavation of a multi-period ecclesiastical site at Aghavea, county Fermanagh | Beglane, FionaHeslip, RobertMacDonald, PhilipMcSparron, CormacSloan, BrianÓ Baoill, Ruairí | Article in Journal | | 2014 |
| The excavation of Clonrush church, near Whitegate, Co. Clare | McCarthy, Caron | Article in Journal | | 1991 |
| The exclave parish and the geography of episcopacy in Ireland: 600 to 1300 | MacCotter, Paul | Article in Book | Four Courts Press | 2018 |
| The exempt jurisdiction of Newry and Mourne : the struggle for episcopal authority | Rankin, J. Frederick | Article in Journal | | 1998 |
| The extent of Coarb and Erenach in Gaelic Ulster | Barry, J. G. | Article in Journal | | 1960 |
| The extraction of iodine from seaweed in Ramelton, So. Donegal | Childs, Peter E. | Article in Journal | | 2022 |
| The failed attempts to implement a native rector at the Irish College in Rome, 1773–98 | | Article in Journal | | 2014 |
| The failure of the Reformation in Ireland : une question bien posée | Bottigheimer, Karl S. | Article in Journal | | 1985 |
| The fall of the Bastille | Hayes, Richard Francis | Article in Journal | | 1989 |
| The fall of the Bastille on the Dublin stage | Stewart, J. H. | Article in Journal | | 1954 |
| The Fall of the British Monarchies, 1637-1642 | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Monograph or Collective Volume | NA | 1991 |
| The family of Comedinus Offercheran, the authority of the Archbishop of Armagh and the dispute over the rectory of Tamlaghtlege, 1414-1449 | Sughi, Mario A. | Article in Journal | | 1996 |
| The family of General P. H. Sheridan | O'Connell, Philip | Article in Journal | | 1938 |
| The Famine and its consequences | O'Neill, Thomas Patrick | Article in Book | | 1957 |
| The Famine and its consequences | Madden, Gerard | Article in Book | | 1993 |
| The famine and the Church in England | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1947 |
| The famine and the development of the Church in Scotland | Handley, J. E. | Article in Journal | | 1947 |
| The Famine in Ardcarne | Tonra, Henry
| Article in Journal | | 1996 |
| The fantastic in Irish art | Kennedy, Róisín | Article in Journal | | 2007 |
| The Fasti of St. Patrick's, Dublin. | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Monograph or Collective Volume | | 1930 |
| The feast of the Assumption in the early Irish church | Hennig, John | Article in Journal | | 1951 |
| The financial cost of Irish immigration to Castile and Galicia (1601-11) | O'Scea, Ciaran | Article in Book | | 2010 |
| The finding of the De Burgo-O’Malley chalice | Byrne, Michael | Monograph or Collective Volume | | 2023 |
| The Fingall family link with Douai Abbey Woolhampton, Berkshire, England and Killeen/Dunsany Parish, Co. Meath, Ireland | Carty, Mary Rose | Article in Journal | | 2018 |
| The Finglas vestry book, 1657-1758 | Ní Mhurchadha, Maighréad | Article in Journal | | 2010 |
| The first agricultural broadcasts on 2RN | Lynch, Brian | Article in Journal | | 1999 |
| The first bishops of Dublin | Gwynn, Aubrey | Article in Journal | | 1955 |
| The first bishops of Dublin | Gwynn, Aubrey | Article in Book | | 1990 |
| The first chapter act book of Christ Church Cathedral, Dublin 1574-1634 | | Monograph or Collective Volume | Four Courts | 1997 |
| The first hundred years, being a history of St. Mark's Parish Church, Ballysillan, Belfast | Macourt, William A. | Monograph or Collective Volume | [St. Mark's Parish, Ballysillan] | 1952 |
| The first liturgical catechism in Ireland | Hennig, John | Article in Journal | | 1949 |
| The first radio pirate | O'Carroll, Jim | Article in Journal | | 1986 |
| The first synod of Cashel | Gwynn, Aubrey | Article in Journal | | 1946 |
| The first Vatican Council, the Papal State and the Irish hierarchy : recent research on the pontificate of Pope Pius IX | Walsh, Katherine | Article in Journal | | 1982 |
| The Fitzgeralds of Kildare and the building of a dynastic image, 1500-1630 | Lennon, Colm | Article in Book | | 2006 |
| The formal relationships of insular early medieval eucharistic chalices | Ryan, Michael | Article in Journal | | 1990 |
| The formation and development of intramural churches and communities in medieval Dublin in a European context | Empey, C. A. (Adrian) | Article in Book | | 2009 |
| The formation of a parish : the case of Beaulieu, County Louth | Brand, Paul | Article in Book | | 1988 |
| The formation of the diocese | Devlin, Ciarán | Article in Book | | 2000 |
| The formation of the medieval church in Limerick | Fleming, John | Article in Book | | 2009 |
| The Fottrell papers 1721-39 : an edition of the papers found on the person of Fr John Fottrell, provincial of the Dominicans in Ireland, at his arrest in 1739 | | Monograph or Collective Volume | | 1980 |
| The foundation legend of Laurencekirk revisited | Clancy, Thomas Owen | Article in Journal | | 1999 |
| The foundation of the Cistercian Abbey of Dunbrody, Co. Wexford and its historical context | Doyle, Ian | Article in Journal | | 1992 |
| The foundation plaque of the Irish College in Santiago de Compostela | O’Scea, Ciaran | Article in Journal | | 2020 |
| The founding of the village of Mountshannon | Madden, Gerard | Article in Book | | 1993 |
| The Franciscan convents in Connacht. With notes thereon | Blake, Martin J. | Article in Journal | | 1928 |
| The Franciscan petition lists : diocese of Armagh 1670-71 | Campbell, Patrick J. | Article in Journal | | 1992 |
| The Franciscans in Ireland, 1400-1534 : from reform to reformation | Ó Clabaigh, Colmán N. | Monograph or Collective Volume | Four Courts | 2002 |
| The Fransciscans in Antrim | Conlan, Pat | Article in Journal | | 2013 |
| The fraternity of St Anne in St Audoen's parish, Dublin | Lennon, Colm | Article in Book | NA | 2012 |
| The Friars in Ireland, 1224-1540 | Ó Clabaigh, Colmán N. | Monograph or Collective Volume | Four Courts | 2012 |
| The Friarstown font | Clarke, Tommy | Article in Journal | | 2007 |
| The Friarstown font | Clarke, Tommy | Article in Journal | | 2007 |
| The friary of Muckross, commonly called 'Muckross Abbey' | Leask, H. G. (Harold G.) | Monograph or Collective Volume | The Stationery Office | 1941 |
| The Friends' meeting house : an historical survey of the places of worship of the Society of Friends (Quakers), from the days of their founder George Fox, in the 17th century, to the present. | Lidbetter, Hubert | Monograph or Collective Volume | | 1979 |
| The frontiers of church reform in the British Isles, 1170-1230 | Smith, Brendan, 1963- | Article in Book | | 2002 |
| The fruitful marriage : a consideration of the material culture of ecclesiastical landholding in two study areas of early medieval Ireland | Boazman, Gill | Article in Book | Four Courts Press | 2018 |
| The furnishings of the Honan chapel, Cork, 1915-16 | Lamb, Peter | Article in Book | | 2004 |
| The Furrow : navigating the rapids, 1950-77 | Horgan, John | Article in Book | | 2014 |
| The future of scholastic thought | Rosemann, Philipp W. | Article in Book | | 2009 |
| The future returns : a journey with Columba and Augustine of Canterbury | McMaster, Johnston | Monograph or Collective Volume | Corrymeela Press | 1997 |
| The GAA and Radio Éireann, 1926 - 2010 : the story of the commentators who broadcast Gaelic Games | Guthrie, Patrick P. | Monograph or Collective Volume | The Author | 2013 |
| The gardeners of the Early Christian period | Ó Gaoithin, Seán | Article in Journal | | 2011 |
| The genesis of the diocese of Clogher | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Article in Journal | | 1917 |
| The genesis of the dioceses of Derry and Raphoe | Lawlor, H. J. (Hugh Jackson), 1860-1938 | Article in Journal | | 1917 |
| The geography of early monasticism in Ireland | Bowen, E. G. | Article in Journal | | 1972 |
| The Geraldine war - rebellion of crusade? | Mac Curtain, Benvenuta | Article in Journal | | 1965 |
| The Geraldines and the Irish : intermarriage, ecclesiastical patronage and status | Booker, Sparky | Article in Book | | 2016 |
| The Ghosts of Archbishop Marsh, Swift and Stella | Walsh, Dave | Article in Journal | | 2008 |
| The Glens of Antrim Historical Society and Carrickfergus and District Historical Society Joint Project | Hulme, John | Article in Journal | | 2014 |
| The globalisation of God : Celtic Christianity's nemesis | Harper, TessMolloy, Dara | Monograph or Collective Volume | Aisling Publications | 2009 |
| The golden age of early Irish monasticism : myth or historical reality? | Smyth, Alfred P., 1942- | Article in Book | | 2002 |
| The golden jubilee book of St. Peter's Church, Belfast, 1900 - 1950 | Breene, R. S. | Monograph or Collective Volume | [St Peter's Church] | 1900 |
| The Gospel Book in Celtic lands before AD 850 : contents and arrangement | McGurk, Patrick | Article in Book | | 1987 |
| The Gospel Book of Macregol of Birr | Hogan, Margaret | Article in Journal | | 2009 |
| The gospel in glass : All Saints' Church, Portsalon, in the parish of Clondevaddock, County Donegal | McDonald, G. A. | Monograph or Collective Volume | [G.A. McDonald] | 1976 |
| The Gothic revival in the Diocese of Armagh and the influence of John Murray, architect and surveyor | Geraghty, Peter J. | Article in Journal | | 2021 |
| The gravestone inscriptions of the cathedral cemetery of Cloyne, Co. Cork | Henchion, Richard | Monograph or Collective Volume | Cloyne Literary and Historical Society | 1999 |
| The Great Irish Famine, 1845-52 | O'Neill, Thomas Patrick | Article in Journal | | 1947 |
| The greatest monastic establishment in Mayo | Forde, Brendan | Article in Journal | | 1987 |
| The growth and distribution of the Cistercian order in medieval Europe | Donkin, R. A. | Article in Journal | | 1967 |
| The growth and origin of the diocese of Meath | Brady, John, d.1963 | Article in Journal | | 1949 |
| The growth of devotion to the Sacred Heart in Ireland | Burke-Savage, Roland | Article in Journal | | 1968 |
| The growth of the Archdiocese of Tuam | Knox, H. T. (Hubert Thomas) | Article in Journal | | 1903 |
| The hand-bells of the early western church | Bourke, Cormac | Article in Book | | 1994 |
| The heritage of Drumbo | Rankin, J. F. | Monograph or Collective Volume | Parish Restoration Fund | 1981 |
| The hermits and anchorites of medieval Dublin | Ó Clabaigh, Colmán N. | Article in Book | | 2010 |
| The Hibernensis. A study, edition, and translation, with notes. | Flechner, Roy | Thesis | | |
| The High Altar in Sligo Dominican Abbey | Higgins, Jim | Article in Journal | | 2022 |
| The high cost of dying : an analysis of pro anima bequests in medieval Dublin | Murphy, Margaret | Article in Book | | 1987 |
| The high crosses of Great Britain and Ireland | Brown, Stephen J. | Article in Journal | | 1952 |
| The historical content of Caithreím Ceallachaín Chaisil | Ryan, J. | Article in Journal | | 1941 |
| The historical links of Drum south Roscommon with the 31st International Eucharist Congress, Dublin 1932 | Drum Heritage Group | Monograph or Collective Volume | Drum Heritage Group | 2002 |
| The historiography of the papers of Bishop James Doyle OSB, 1786-1834, in the Kildare and Leighlin diocesan archives | McGrath, T. G. | Article in Journal | | 1988 |
| The historiography of the twelfth-century reform | Irwin, L. | Article in Journal | | 1985 |
| The history and antiquities of the diocese of Ossory | Carrigan, William, 1860-1924 | Monograph or Collective Volume | [s.n.] | 1981 |
| The history and antiquities of the diocese of Ossory. 1:Introduction and Extent, Deaneries, Bishops, Chapter and Colleges of the diocese of Ossory; 2 : Northern Deanery of Ossory Diocese; 3 : The Middle Deanery, including the Cathedral City of the Diocese of Ossory; 4 : The Southern Deanery of the Diocese of Ossory. 4 vols. | Carrigan, William, 1860-1924 | Monograph or Collective Volume | | 1905 |
| The history and antiquities of the parish of Dunnamaggan | Lahert, Richard | Monograph or Collective Volume | Kerryman | 1956 |
| The history and provenance of two early medieval crosiers ascribed to Clonmacnoise | Murray, Griffin | Article in Journal | | 2021 |
| The history behind a mistake | Miller, David, 1964- | Article in Book | | 1996 |
| The history of advertising in Ireland : the advertising book | Oram, Hugh | Monograph or Collective Volume | M.O. Publications | 1986 |
| The history of St. Michael's Church, Clonoe, and notes on the parish | Dilworth, Wilfred James | Monograph or Collective Volume | Gortreagh Printing [printer] | 2002 |
| The history of the construction of Tuam Cathedral | Higgins, Patrick | Article in Journal | | 2010 |
| The history of the monastic site of Inis Cealtra, Co. Clare | De Paor, Liam | Article in Journal | | 1996 |
| The History of the Parish of Glendermott | Coulter, J. A. | Monograph or Collective Volume | Derry Journal Ltd. {Printer) | 1958 |
| The history, architecture and antiquities of the cathedral church of St Canice, Kilkenny | Graves, JamesPrim, J. G. A. | Monograph or Collective Volume | | 1857 |
| The history, topography and antiquities (natural and ecclesiastical), with biographical sketches of the nobility, gentry and ancient families, and notices of eminent men, etc. of the county and city of Waterford; including the towns, parishes, villages, manors and seats | Brady, DonaldHansard, J. | Monograph or Collective Volume | Waterford County Council | 1997 |
| The Holy Ghost friary, Waterford : an architectural account | Lumley, I. W. J. | Article in Journal | | 1982 |
| The holy island of Loch Cré: Monaincha, the thirty-first wonder of the world | Cunningham, George | Article in Book | | 2012 |
| The Holy Man of Ballyvourney | Tourney, Christopher P. | Article in Journal | | 1985 |
| The Holy Place as formula: floor plans in Adomnán's De Locis Sanctis to specify the description of pilgrimage sites in the Holy Land | Stolzenburg, Xenia | Article in Book | | 2017 |
| The Holy See and the Irish National Schools | Barry, P. C. | Article in Journal | | 1959 |
| The Holy See, British policy and the plan of campaign in Ireland, 1885-93 | Macaulay, Ambrose | Monograph or Collective Volume | Four Courts | 2002 |
| The Holy Well and the Cross: sacred objects in the sacred space of Drumline Churchyard | Cronin, John J. | Article in Journal | | 2024 |
| The home of St Patrick | Gogan, L. | Article in Journal | | 1951 |
| The Honan chapel : a golden vision | | Monograph or Collective Volume | Cork University Press | 2004 |
| The Honan chapel : an iconographic excursus | Hawkes, Jane | Article in Book | | 2004 |
| The Honan chapel : the architectural background | Larmour, Paul | Article in Book | | 2004 |
| The Honan chapel : the artistic and cultural content | Larmour, Paul | Article in Book | | 2004 |
| The Honan Chapel, Cork : a shrine to the Irish arts and crafts movement | Larmour, Paul | Article in Journal | | 2002 |
| The Honan chapel, University College, Cork | O'Kelly, M. J. (Michael Joseph) | Monograph or Collective Volume | Cork University Press | 1967 |
| The house that Martin built. The building of Glezz Parochial House | Sands, John Joe | Article in Journal | | 1993 |
| The Hugh Jackson Lawlor archive in the Representative Church Body Library [with index | Breen, Aidan | Article in Journal | | 2013 |
| The hunger-strike of the Lord Mayor of Cork, 1920 : Irish, English and Vatican attitudes | Mews, Stuart | Article in Book | | 1989 |
| The Hunt Museum Limerick - North Thomond church silver 1425-1820, September-November 2000 | Hunt Museum, Limerick | Monograph or Collective Volume | The Hunt Museum | 2000 |
| The hymn of St Secundinus in praise of St. Patrick | Mulcahy, C. | Article in Journal | | 1945 |
| The iconography of the southern lunette in Ardmore Cathedral, Co. Waterford | O'Connor, Donal | Article in Journal | | 2008 |
| The idea of a diocesan history | Gleeson, E. F. | Article in Journal | | 1941 |
| The idea of monastic austerity in early Ireland | Etchingham, Colmán | Article in Book | | 1999 |
| The implications of 'paruchia' | Etchingham, Colmán | Article in Journal | | 1993 |
| The implications of Rath Breasail synod regarding Ardagh and adjacent dioceses as then projected | Connellan, Mark | Article in Journal | | 1943 |
| The indictment of Fr. John Preston, Franciscan | | Article in Journal | | 1963 |
| The influence of alabaster carvings on medieval sculpture in Ennis friary. | Harbison, PeterHunt, John | Article in Journal | | 1977 |
| The influence of Irish monks on Merovingian diocesan organization | Bittermann, Helen Robbins | Article in Journal | | 1935 |
| The Influence of Pilgrimage on Artistic Traditions in Medieval Ireland | Garton, Tessa | Article in Book | | 2007 |
| The influence of the Huguenots on educated Ireland : Huguenot books in Irish church libraries of the eighteenth century | McKee, Jane | Article in Book | | 2006 |
| The inscriptions on the Cross of the Scriptures at Clonmacnois, County Offaly | Harbison, Peter | Article in Journal | | 1979 |
| The Institutional Church | Cubitt, Catherine | Article in Book | | 2009 |
| The inter-relationship of the press and politicians during the 1981 hunger strike at the Maze Prison | Page, Michael von Tangen | Article in Book | NA | 1996 |
| The interaction of politics, settlement and church in medieval Ireland : Uí Maine as a case study | Grabowski, Kathryn | Thesis | | |
| The interrogation of Matthew Bernewell, an Irish Jansenist imprisoned in the Bastille | Lyons, Mary Ann | Article in Journal | | 2005 |
| The Iorwerth triads | Roberts, Sara Elin | Article in Book | | 2011 |
| The Iraq crisis of 2003 and press-state relations : an analysis of press coverage in Finland, Ireland and the UK | Halttu, Janne | Thesis | | |
| The Irish abroad : Michael Condon in Scotland, 1845-1878 | Aspinwall, Bernard | Article in Book | | 1989 |
| The Irish alternative : Scottish and English Presbyterianism in Ireland | Armstrong, Robert | Article in Book | | 2013 |
| The Irish appeal of 1593 to Spain : some light on the genesis of the 'Nine Years' War' | Silke, John J. | Article in Journal | | 1959 |
| The Irish Augustine : De Mirabilibus Sacrae Scripturae | MacGinty, Gerard | Article in Book | | 1987 |
| The Irish Augustinians in England and Scotland, 1539-1992 : the Irish province-restorer of its Anglo-Scottish mother province | Hackett, Michael Benedict | Article in Book | | 1994 |
| The Irish background of St. Fursey | Hennig, John | Article in Journal | | 1952 |
| The Irish barn church | Bradley, John, Rev. | Article in Journal | | 2008 |
| The Irish Benedictines : a history | | Monograph or Collective Volume | Columba | 2005 |
| The Irish bishops and the Anglican schism (1534-1547) | Edwards, R. W. D. (Robert Walter Dudley) | Article in Journal | | 1935 |
| The Irish brigade at Fontenoy, 1745 | Boyle, Patrick, b.1849 | Article in Journal | | 1905 |
| The Irish Brigade with Montrose | Duggan, Lucy | Article in Journal | | 1958 |
| The Irish cathedral in the 12th century : the dioceses of Limerick and Killaloe | Gem, Richard | Article in Book | | 2011 |
| The Irish cathedral priory of Holy Trinity (Christ Church), Dublin: an ecclesiastical oddity | Kinsella, Stuart | Thesis | | 1997 |
| The Irish Catholic Episcopal Corps, 1657-1829: a prosopographical analysis | Derr, Eric | Thesis | | 2014 |
| The Irish church and taxation in the fourteenth century | Lydon, James F. | Article in Journal | | 1965 |
| The Irish church and taxation in the fourteenth century | Lydon, James F. | Article in Journal | | 1964 |
| The Irish church and the papacy | Corish, Patrick J. | Article in Journal | | 1979 |
| The Irish church and the Tudor reformations | Jefferies, Henry A. | Monograph or Collective Volume | Four Courts | 2010 |
| The Irish Church Disestablishment Act (1869) and the general synod of the Church of Ireland (1871) : the art and structure of educational reform | McCormack, Christopher F. | Article in Journal | | 2018 |
| The Irish church in the eleventh and twelfth centuries | Gwynn, AubreyO'Brien, Gerard | Monograph or Collective Volume | | 1992 |
| The Irish church in the middle ages | Watt, John A. | Article in Book | | 2002 |
| The Irish church in the sixteenth century | Mooney, Canice | Article in Journal | | 1963 |
| The Irish church in the twentieth and twenty-first centuries | Von Prondzynski, Ferdinand | Article in Book | | 2006 |
| The Irish church, its reform and the English invasion | Ó Corráin, Donnchadh | Monograph or Collective Volume | Four Courts Press | 2017 |
| The Irish Cistercian documents in Octavian's Register, Armagh | Conway, Colmcille | Article in Journal | | 1957 |
| The Irish College at Alcalá de Henares 1649-1785 | O Connell, Patricia | Monograph or Collective Volume | Four Courts | 1997 |
| The Irish college at Salamanca | Henchy, Monica | Article in Book | | 2007 |
| The Irish college at Salamanca | Corboy, James | Article in Journal | | 1944 |
| The Irish College of Alcala de Henares | Walsh, Micheline Kerney | Article in Journal | | 1985 |
| The Irish College of Poitiers, 1674-1762 | Finegan, Francis | Article in Journal | | 1965 |
| The Irish College, Rome, and its world | | Monograph or Collective Volume | Four Courts | 2008 |
| The Irish colleges on the continent : Their origin and history | O'Boyle, James | Monograph or Collective Volume | | 1935 |
| The Irish colleges on the continent and the creation of an educated clergy | Brockliss, Laurence W. B. | Article in Book | | 2010 |
| The Irish Commons and the public purse | MacDonagh, Michael | Article in Journal | | 1924 |
| The Irish congregations in nineteenth-century Montreal | Keep, G. R. C. | Article in Journal | | 1950 |
| The Irish contribution to European scholastic thought | | Monograph or Collective Volume | Four Courts for the Irish Philosophical Society | 2009 |
| The Irish contribution to the penitential tradition | Meens, Rob | Article in Book | | 2016 |
| The Irish convent chapel: the inspiration, design and patronage | Gilmartin, John Patrick Maiben | Thesis | | 2001 |
| The Irish dimension of the British Kulturkampf : Vaticanism and civil allegiance, 1870-1875 | Jenkins, H. | Article in Journal | | 1979 |
| The Irish disestablishment conference of 1869 | Fair, John D. | Article in Journal | | 1975 |
| The Irish Dominican mission to the Danish West Indies, 1758-1771 | Fenning, Hugh | Article in Journal | | 1965 |
| The Irish Dominican mission to the Danish West Indies, 1758-71 | Fenning, Hugh | Article in Journal | | 1965 |
| The Irish Dominican province (1765-1778) | Fenning, Hugh | Article in Journal | | 1979 |
| The Irish Dominican province (1778-1785) | Fenning, Hugh | Article in Journal | | 1985 |
| The Irish Dominican Province 1785-1797 | Fenning, Hugh | Article in Journal | | 1986 |
| The Irish Dominicans, 800 years, 1224-2024 | Crotty, Terence | Monograph or Collective Volume | Dominican Publications | 2025 |
| The Irish Ecclesiastical Record and Maynooth | Wall, Thomas | Article in Journal | | 1945 |
| The Irish episcopate and pastoral care, 1318-1534 | Burrows, Michael | Thesis | | 1986 |
| The Irish establishment : 1879-1914 | Campbell, Fergus | Monograph or Collective Volume | Oxford University Press | 2009 |
| The Irish Franciscan library at Prague | MacGrath, Kevin | Article in Journal | | 1951 |
| The Irish Franciscan province : from foundation to the aftermath of the Bruce invasion | Gallagher, Niav | Article in Book | | 2010 |
| The Irish Franciscans in Prague 1629-1786 : history of the Franciscan College of the Immaculate Conception of the Virgin Mary in Prague | Kucharova, HedvikaParez, Jan | Monograph or Collective Volume | Charles University | 2015 |
| The Irish Franciscans, 1534-1990 | | Monograph or Collective Volume | Four Courts | 2009 |
| The Irish Franciscans, 1600-1700 | Gillespie, Raymond | Article in Book | | 2009 |
| The Irish Franciscans, 1651-1665 | Millett, Benignus | Monograph or Collective Volume | Gregorian University Press | 1964 |
| The Irish genealogies as an onomastic source | Ó Muraíle, Nollaig | Article in Journal | | 1992 |
| The Irish high cross : morphology and iconography | Roe, H. M. | Article in Journal | | 1965 |
| The Irish in England and on the Continent in the seventh century: Part I|The Irish in England and on the Continent in the seventh century: Part II | Wood, I.N. | Article in Journal | | 2016 |
| The Irish in the building of the intermountain west | Dwyer, Robert J. | Article in Journal | | 1957 |
| The Irish in the western Carolingian empire (according to James F. Kenny and Bern, Burgerbibliothek 363) | Contreni, John J. | Article in Book | | 1982 |
| The Irish in war and peace, A.D. 400-800 | Rynne, Etienne | Article in Book | | 2002 |
| The Irish language & television : national identity, preservation, restoration and minority rights | Watson, Iarflaith | Article in Journal | | 1996 |
| The Irish language and tradition (1540-1691) | Cahill, Edward | Article in Journal | | 1939 |
| The Irish Language in the penal era | Cahill, Edward | Article in Journal | | 1940 |
| The Irish Latin hymns : 'Sancti Venite'of St Sechnall (d. c.447) and 'Altus Prosator' of St Columba (521-597) | Mulcahy, C. | Article in Journal | | 1941 |
| The Irish life of Colm Cille | Herbert, Máire | Article in Book | | 1988 |
| The Irish mission of the seventh century : historical fact or historiographical fiction? | Schaferdiek, Knut | Article in Book | | 1984 |
| The Irish monastery of Bangor | Gwynn, Aubrey | Article in Journal | | 1950 |
| The Irish monastic tradition in eastern Europe | Hennig, John | Article in Journal | | 1943 |
| The Irish monastic tradition on the Continent | Hennig, John | Article in Journal | | 1957 |
| The Irish parliament of 1689 | Preston, Christopher | Article in Journal | | 1948 |
| The Irish Peter Lombard | Silke, John J. | Article in Journal | | 1975 |
| The Irish precedent for English church reform : the Church Temporalities Act of 1833 | Brose, O. J. | Article in Journal | | 1956 |
| The Irish Presbyterian mind : conservative theology, evangelical experience, and modern criticism, 1830-1930 | Holmes, Andrew R. | Monograph or Collective Volume | Oxford University Press | 2018 |
| The Irish priest in North America | Edwards, Owen Dudley | Article in Book | | 1989 |
| The Irish regulars in early-modern Paris : a re-examination | Chambers, Liam | Article in Book | | 2022 |
| The Irish remonstrance of 1317 : an international perspective | Phillips, J.R.S. (John Roland Seymour) | Article in Journal | | 1990 |
| The Irish shrines of our Lady | Canice, Fr. | Article in Journal | | 1947 |
| The Irish university question of the 19th century | Moody, T. W. (Theodore William), 1907-1984 | Article in Journal | | 1958 |
| The Irish, the Virgin Mary and Proclus of Constantinople | Weeda, Peter
| Article in Journal | | 2012 |
| The Irishness of Irish architecture & Celtic constructional sophistication from earliest ecclesiastical and monastic origins to 20th-century revival | Rowan, Alistair | Article in Journal | | 1997 |
| The island of St. Patrick : church and ruling dynasties in Fingal and Meath, 400-1148 | | Monograph or Collective Volume | Four Courts | 2004 |
| The Italian connection : the great earl and Archbishop Octavian | Sughi, Mario | Article in Journal | | 1999 |
| The Jacobite duchess : Frances Jennings, duchess of Tyrconnell, c.1649-1731 | Nolan, Frances | Monograph or Collective Volume | Boydell Press | 2021 |
| The John Street Methodist Church | MacCurtain, Sean | Article in Journal | | 2002 |
| The Kennedys of Castleross : soap opera and sponsorship on Irish radio | Rains, Stephanie | Article in Journal | | 2020 |
| The Killeshin church ruins, Queen's County | Fitzgerald, Walter, Lord | Article in Journal | | 1911 |
| The king as judge in early Ireland | Gerriets, Marilyn | Article in Journal | | 1988 |
| The kings of England and papal provisions in fifteenth-century Ireland | Edwards, R. W. D. (Robert Walter Dudley) | Article in Book | | 1961 |
| The Lagan valley : parish values in the early 14th century | Herring, Ivor J. | Article in Journal | | 1936 |
| The landed classes and the professions | McDowell, R. B. (Robert Brendan), 1913-2011 | Article in Book | | 1957 |
| The landlord, the minister, the tenant and the tithe in Belleek in 1758 | Cunningham, John B. 1944- | Article in Journal | | 1989 |
| The landlords of Mountshannon and surrounding district | Madden, Patrick | Article in Book | | 1993 |
| The lands of Llanthony Prima and Secunda in Ireland 1172-1541: the settlement of Meath | Hogan, Arlene | Article in Journal | | 2009 |
| The lands of Llanthony Prima in the lordship of Ireland, 1172-1540 | Hogan, Arlene | Thesis | | 1999 |
| The lands of the Cross of Holy Trinity, Dublin, in Lechaathel | Connolly, Al | Article in Journal | | 1998 |
| The lands of the Vicars Choral of St Patrick's Cathederal in Harold's Cross, Dublin | Bairéad, Eoin C. | Article in Journal | | 2017 |
| The landscape features, follies and antiquities of Dowth demesne | Fenwick, Joe | Article in Journal | | 2013 |
| The large medieval churches of the dioceses of Leighlin, Ferns, and Ossory : a study of adaptation and change. Pt. 1 | Dolan, Ana | Article in Journal | | 1999 |
| The large medieval churches of the dioceses of Leighlin, Ferns, and Ossory : a study of adaptation and change. Pt. 2 | Dolan, Ana | Article in Journal | | 2000 |
| The last speech of Blessed Oliver Plunket | | Article in Journal | | 1947 |
| The last years of Bishop T. A. O'Brien, O.P. | Taheny, L. | Article in Book | | 1951 |
| The lasting legacy of the last viceroy | Beattie, Seán | Article in Journal | | 2021 |
| The late medieval diocese of Clogher, c.1200-1480 | Smith, Brendan, 1963- | Article in Book | | 2005 |
| The late medieval suburban church of Saint Nicholas', Clonmel | Ó Drisceoil, Cóilín | Article in Journal | | 2011 |
| The late Most Rev. Dr. Gilmartin | Morrisroe, Patrick | Article in Journal | | 1939 |
| The late-medieval relics of Holy Trinity church, Dublin | Ó Floinn, Raghnall | Article in Book | | 2009 |
| The later nineteenth century | McCracken, J. L. | Article in Book | | 1957 |
| The lay Coarb in medieval times | Barry, J. G. | Article in Journal | | 1959 |
| The Lay College, Maynooth | Brady, John, d.1963 | Article in Journal | | 1950 |
| The layout of Irish early Christian monasteries | Herity, Michael | Article in Book | | 1984 |
| The layout of the temple of Jerusalem as a paradigm for the topography of religious settlement within the early medieval Irish church | Jenkins, David Harold | Thesis | | |
| The legacy of John Bramhall as Laud's alter-ego | Ross, Linda M. | Article in Book | | 1999 |
| The legacy of Newman | Meehan, D. | Article in Journal | | 1946 |
| The legend of St Scothíne : perspectives form early Christian Ireland | Herbert, Máire | Article in Journal | | 2001 |
| The legislation of the synod of Thurles, 1850 | Barry, P. C. | Article in Journal | | 1959 |
| The letters of Luke Wadding | Mooney, Canice | Article in Journal | | 1957 |
| The letters of Oliver Plunkett, 1625-81, archbishop of Armagh and primate of all Ireland | Hanly, JohnPlunkett, Oliver, bishop and saint, 1625-1681 | Monograph or Collective Volume | Dolmen Press | 1979 |
| The letters of Saint Oliver Plunkett, 1625-1681 : Archbishop of Armagh and Primate of all Ireland | | Monograph or Collective Volume | | 1979 |
| The Levitical candle : a comparison of the theology and politics of two leading ecclesiastics, James Ussher (1581-1656) and John Bramhall (1594-1663) | Cunningham, Jack | Thesis | | 2003 |
| The libraries of religious houses in the late middle ages | Bell, David Neill | Article in Book | | 2006 |
| The library of Iona in the late seventh century : the evidence from Adomnán 'De locis sanctis' | O'Loughlin, Thomas | Article in Journal | | 1994 |
| The library of the Augustinians of Galway in 1731 | | Article in Journal | | 1990 |
| The life and career of Hugh Brady, bishop of Meath, 1563-84 | Walshe, Helen Mary | Thesis | | 1985 |
| The life and legend of St Patrick | Bieler, Ludwig | Article in Journal | | 1948 |
| The life and times of Archbishop Denis O'Driscoll (1600-1650) | Coombes, James | Article in Journal | | 1965 |
| The life and times of Bishop Edward Kernan | Mulligan, Patrick | Article in Journal | | 1981 |
| The life and times of Daniel Murray : Archbishop of Dublin, 1823-1852 | Morrissey, Thomas J. | Monograph or Collective Volume | Messenger Publications | 2018 |
| The life of Dr Thomas Hussey (1746-1803), bishop of Waterford and Lismore | Murphy, William Gerald | Thesis | | 1968 |
| The life of the Celtic Church | Bulloch, James | Monograph or Collective Volume | Saint Andrew Press | 1963 |
| The life of Thomas Hussey, 1746-1803, Bishop of Waterford and Lismore | Murphy, Liam | Monograph or Collective Volume | Kingdom Books | 2016 |
| The life, times, and correspondence of the Rt. Rev. Dr. Doyle, Bishop of Kildare and Leighlin | Fitzpatrick, W. J., 1830-1895 | Monograph or Collective Volume | | 1861 |
| The lighter side of Rural Electrification: 'REO News' and the social history of the Rural Electrificastion Scheme in Ireland, 1947-1916 | Mulrennan, Kirsten | Article in Journal | | 2017 |
| The Limeburners : A history of Clogrennane Lime Works 1816-2016 | Kinsella, Shay | Monograph or Collective Volume | Clogrennane Lime | 2016 |
| The Limerick bishop who said no to papal infallibility | Irwin, Liam | Article in Journal | | 1993 |
| The lion on the hill : a history of St. Mark's Church, Dundela, Belfast, 1878-1998 | Beckett, J. C. (James Camlin) | Monograph or Collective Volume | Minprint [Printer] | 1998 |
| The lives of Kevin (Caoimhghin) of Glendalough | Ó Riain, Pádraig | Article in Book | | 2011 |
| The location of early churches in northern county Clare | Mytum, Harold C. | Article in Book | | 1982 |
| The Logo of Sligo Field Club, Carrowntemple Slabs, the Moylough Belt-shrine and St Mobhí | Timoney, Martin A. | Article in Journal | | 2015 |
| The Louvain achievement I : the Annals of the Four Masters | Cunningham, Bernadette | Article in Book | | 2009 |
| The Louvain achievement II : hagiography | Ó Riain, Pádraig | Article in Book | | 2009 |
| The Luxeuil congress in honour of the fourteenth centenary of St Columban, 1950 | O'Carroll, Jim | Article in Journal | | 1951 |
| The MacMahon Bibles, 1783-1810 | Pope, Hugh | Article in Journal | | 1946 |
| The Maher-Crolly controversy, 1850 | Macaulay, Ambrose | Article in Journal | | 1984 |
| The making and undoing of a confessional state : Ireland 1660-1829 | Smyth, Jim | Article in Journal | | 1993 |
| The making of Irish traditional music | O'Boyle, Seán | Article in Book | | 1979 |
| The making of medieval Derry | Devlin, Ciaran J. | Monograph or Collective Volume | Veritas | 2013 |
| The making of the altar | Cussen, Cliodna | Article in Book | | 1998 |
| The maledictory psalms | Wiley, Dan M. | Article in Journal | | 2001 |
| The man in the middle : St Laurence O'Toole, patron saint of Dublin | Forristal, Desmond | Monograph or Collective Volume | Veritas | 1988 |
| The management of schools in Northern Ireland : reflections on the Astin Report | Astin, Alan E. | Article in Book | | 1987 |
| The Many Deaths of Tigernmas | Collins, Claire | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| The Marian Restoration in Ireland | Jefferies, Henry A. | Article in Journal | | 2016 |
| The mariology of the Bláthmac poems | Good, James | Article in Journal | | 1965 |
| The mariology of the early Irish church | Good, James | Article in Journal | | 1963 |
| The Martin-Patrick relationship | Gogan, L. | Article in Journal | | 1961 |
| The mason and his mark : masons' marks in the medieval Irish archbishoprics of Cashel and Dublin | Hourihane, Colum P., 1955- | Monograph or Collective Volume | Archaeopress | 2000 |
| The mass in the early Irish church | Power, P. | Article in Journal | | 1942 |
| The mass media and the popularisation of Gaelic games, 1884-1934 | Corry, Eoghan | Article in Book | | 2009 |
| The mass media in twentieth century Ireland | Cathcart, RexMuldoon, Michael, Fr., fl. 1840 | Article in Book | | 2003 |
| The material and visual culture of the construction of Irish Catholic identity : Saint Colman’s Cathedral, Queenstown, County Cork | Wilson, Ann | Article in Book | Palgrave Macmillan | 2015 |
| The material culture of self-promotion: The Conaille Muirthemne kings and the ecclesiastical site of Faughart, County Louth | Boazman, Gill | Article in Journal | | 2015 |
| The material culture of the canonical movement in medieval Ireland | Moss, Rachel | Article in Book | | 2019 |
| The Maynooth College archive | Corish, Patrick J. | Article in Journal | | 1995 |
| The Mayo placenames of early Patrician literature | Mac Gabhann, Fiachra | Article in Book | | 2011 |
| The McMahon Chalice 1724 | Magee, Philip
| Article in Journal | | 2013 |
| The meaning of 'ecclesiastical law' | Denning, A. T., Sir | Article in Journal | | 1944 |
| The media | Bairner, Alan | Article in Book | | 1996 |
| The media and Irish culture | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1984 |
| The media and politics in Northern Ireland | Arthur, Paul, 1945- | Article in Book | | 1987 |
| The media and the state : television and the press 1949-99 | Horgan, John, b. 1940 | Article in Book | | 2000 |
| The media on the rock : the media and the Gibraltar killings | Miller, David, 1964- | Article in Book | | 1991 |
| The media, 1945-70 | Gageby, Douglas | Article in Book | | 1979 |
| The medieval bishops of Elphin and the lost church at Kilteasheen | Finan, Thomas | Article in Book | | 2013 |
| The medieval borough of Louth : an archaeological study | Bradley, John, 1954-2014 | Article in Journal | | 1987 |
| The medieval chapter of Armagh Cathedral | Watt, J. A. | Article in Book | | 1992 |
| The medieval church at Ballyroe, Co. Cork | Cotter, Eamonn | Article in Journal | | 2002 |
| The medieval church lands of County Dublin | Otway-Ruthven, Annette Jocelyn, 1909-1989 | Article in Book | | 1961 |
| The medieval churches and Old Leighlin cathedral in County Carlow | O'Neill, Michael | Article in Book | | 2008 |
| The medieval churches of County Offaly | FitzPatrick, ElizabethO'Brien, Caimin | Monograph or Collective Volume | Government of Ireland | 1998 |
| The medieval churches of Kilkeeran Co. Mayo | McDermott, Yvonne | Article in Journal | | 2018 |
| The medieval city of Limerick | Hodkinson, Brian | Article in Book | | 2009 |
| The medieval diocese of Meath | Brady, John, d.1963 | Article in Journal | | 1957 |
| The medieval fabric of the cathedral church of St Patrick in Dublin | Rae, E. C. | Article in Journal | | 1980 |
| The medieval font from Kilballyowen, Co. Clare | Higgins, Jim | Article in Journal | | 1995 |
| The medieval Irish Church and early Norse Christianity | Martin, Thomas | Thesis | | 2008 |
| The medieval manuscripts of Christ Church Cathedral, Dublin | | Monograph or Collective Volume | Four Courts | 2006 |
| The Medieval Missionary : A study of the Conversion of Northern Europe A.D. 500-1300 | Addison, J. T. | Monograph or Collective Volume | | 1936 |
| The medieval parish church of Glynn, county Antrim | Gault, Andrew | Article in Journal | | 2018 |
| The medieval parish churches in county Meath | O'Neill, Michael | Article in Journal | | 2002 |
| The medieval parish churches of county Kildare | O'Neill, Michael | Article in Journal | | 2004 |
| The medieval parish churches of County Kildare | O'Neill, Michael | Article in Book | | 2006 |
| The medieval parish churches of south-west county Dublin | Ní Mharcaigh, Máirín | Article in Journal | | 1997 |
| The Medieval Parish of Kilmeane, in the Historical and Archaeological record | Curley, Daniel Patrick | Article in Book | | 2023 |
| The medieval period | Cosgrove, Art | Article in Book | | 1991 |
| The medieval rural dean and rural deanery in Ireland | MacCotter, Paul | Article in Book | | 2015 |
| The medieval settlement | Macdonald, Philip | Article in Book | | 2012 |
| The medieval Tower of Hook : a review of its dating and history | Murtagh, Ben | Article in Book | | 2016 |
| The Mediterranean legacy in early Celtic Christianity : a journey from Armenia to Ireland | Ghazarian, Jacob G. | Monograph or Collective Volume | Bennett & Bloom | 2006 |
| The Melbourne Advocate, 1868-1900 : bastion of Irish nationalism in colonial Victoria | Naughtin, Patrick | Article in Book | | 2010 |
| The Memory Palace of Fintan mac Bóchrai | Carey, John | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| The men of the north | Shaw, R. C. | Monograph or Collective Volume | | 1973 |
| The menagerie of the Derrynaflan paten | Ryan, Michael | Article in Journal | | 1995 |
| The menagerie of the Derrynaflan paten | Ryan, Michael | Article in Book | | 1997 |
| The Methodist chapels in Dublin | Cooney, Dudley A. Levistone | Article in Journal | | 2004 |
| The metrical prose of Adomnán's Vita Columbae : an unusual system | Picard, Jean-Michel | Article in Book | | 1984 |
| The Middle Church of Ballinderry and Bishop Jeremy Taylor | Bigger, Francis Joseph, 1863-1926Fennell, William J. | Monograph or Collective Volume | Marcus Ward | c. 1910 |
| The Middle of my Journey | Boyd, John | Monograph or Collective Volume | The Blackstaff Press | 1990 |
| The military and hospitaller order of St Lazarus of Jerusalem | Lee, Gerard A. | Article in Journal | | 1968 |
| The military conquest of Ireland, 1541-1690 | Cahill, Edward | Article in Journal | | 1939 |
| The ministry of the Church of Ireland, 1536-1636 | Diamond, CiaranLennon, Colm, | Article in Book | | 2006 |
| The misericords in St Mary's cathedral, Limerick : an additional note | Cherry, John | Article in Book | | 2011 |
| The mission of Patricius secundus episcopus Scottorum | Mulchrone, Kathleen | Article in Journal | | 1956 |
| The modern traveller to the early Irish Church | Hamlin, AnnHughes, Kathleen Winifred | Monograph or Collective Volume | SPCK | 1977 |
| The modest men of Christ Church, Cork | McKenna, T. J.Moore, Charles | Monograph or Collective Volume | Leinster Leader, printer | 1970 |
| The monasteries of Ireland : an introduction | Mould, D. D. C. P. | Monograph or Collective Volume | Batsford | 1976 |
| The monastery at Fahan | Donnelly, Philip | Article in Journal | | 2008 |
| The monastery of Linn Duachaill | Clinton, Mark | Article in Journal | | 2013 |
| The monastery of Saint Mochaoi of Nendrum | Lawlor, H. C. (Henry Cairnes), 1870-1943 | Monograph or Collective Volume | The Belfast Natural History and Philosophical society | 1925 |
| The monastery of St Gall | Born, ErnestHorn, Walter | Article in Journal | [s.n.] | 1989 |
| The monastic establishments of medieval Cork | O'Sullivan, Denis | Article in Journal | | 1943 |
| The monastic heritage and folklore of county Laois | Kennedy, Joseph | Monograph or Collective Volume | Lisheen | 2003 |
| The monastic hierarchy in twelth century Ireland : the case of Kells | Nic Aongusa, Bairbie | Article in Journal | | 1990 |
| The monastic houses of Co. Down, before and after the coming of the Normans | McKeown, Laurence | Article in Journal | | 1936 |
| The monastic institute | Ryan, John | Monograph or Collective Volume | Gill | 1972 |
| The monastic life in early Christian Ireland | Ó Fiaich, Tomás | Article in Journal | | 1969 |
| The monastic paruchia of Colum Cille in pre-Norman Ireland : its history and hagiography | Herbert, M. R. M. | Thesis | | 1985 |
| The monastic settlement on Rathlin O Birne island, county Donegal | Walsh, P. | Article in Journal | | 1984 |
| The monastic tide mills of Nendrum | McErlean, Thomas | Article in Book | | 2010 |
| The monastic town in early medieval Ireland | Doherty, Charles | Article in Book | | 1985 |
| The monastic townland of Acaun, County Carlow | Bunbury, Turtle | Article in Journal | | 2024 |
| The Monasticon Hibernicum Project : the diocese of Dublin | Mac Shamhráin, Ailbhe | Article in Book | | 2005 |
| The monuments of St Mary's Cathedral, Limerick | Talbot, M. J., Rev. | Monograph or Collective Volume | Treaty Press | 1976 |
| The mosaics of St Anne's Cathedral, Belfast | Mann, John | Article in Book | | 2013 |
| The most contrary region : the BBC in Northern Ireland, 1924-1984 | Cathcart, Rex | Monograph or Collective Volume | Blackstaff Press | 1984 |
| The Most Fantasticand Impossible Rock in the World: A glance at the literatuer of Skellig Michael | Bushe, Paddy | Article in Book | | 2022 |
| The most traversed bridge : a reconsideration of elite and popular religion in late medieval Ireland | Ryan, Salvador | Article in Journal | | 2006 |
| The Muiredach cross at Monasterboice | Morris, Henry | Article in Journal | | 1934 |
| The Munster College petitions in 1838 | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1947 |
| The name of the diocese | McKenna, John | Article in Journal | | 1991 |
| The names of the baronies and parishes in County Kildare | Hamilton, Gustavus Everard | Article in Journal | | 1917 |
| The names of the baronies and parishes in County Kildare | Hamilton, Gustavus Everard | Article in Journal | | 1921 |
| The National Cathedral of St. Patrick, Dublin: discrimination of its ancient architecture and various reparations and discoveries, 1900. The new organ and its place : a report to the Dean and Cathedral Board | Drew, Thomas | Monograph or Collective Volume | Church of Ireland Printing and Publishing Co. | 1900 |
| The national synod of Thurles (1850) | Barry, P. C. | Article in Journal | | 1956 |
| The native reform of the Irish church in the twelfth century | Santry, Jachanthia Patricia | Thesis | | 1987 |
| The native schools of Ireland in the penal era | Cahill, Edward | Article in Journal | | 1940 |
| The natural history of Ireland : included in Book one of the Zoilomastix of Don Philip O'Sullivan Beare | O'Sullivan, Beare, Philip, 1590?-1660? | Monograph or Collective Volume | Cork University Press | 2009 |
| The nature and character of the early Irish liturgy | Hen, Yitzhak | Article in Book | | 2010 |
| The nature of pre-'Reform' Irish monasticism | Bhreathnach, Edel | Article in Book | | 2019 |
| The Nazareth house, Fahan, Buncrana | Donnelly, Philip | Article in Journal | | 2010 |
| The new Monasticon Hibernicum and inquiry into the early Christian and medieval church in Ireland | Mac Shamhráin, Ailbhe | Article in Journal | | 2004 |
| The new primitives : Irishness in recent US television | Negra, Diane | Article in Journal | | 2001 |
| The new St Malachy's : building and finance | Ó Muirí, Réamonn | Article in Book | | 2013 |
| The Nihell chalice 1713 A.D. | Ua Cróinin, Risteárd | Article in Journal | | 1998 |
| The Normans and their world | Lindsay, Jack | Monograph or Collective Volume | | 1973 |
| The North Atlantic monastic thalassocracy : sailing to the desert in early medieval insular spirituality | Dumville, David N. | Article in Book | | 2002 |
| The northern boundary of the archdiocese of Armagh | Ó Ceallaigh, Séamus | Article in Journal | | 1954 |
| The northern dioceses and the Irish College of Alcalá, Spain | O Connell, Patricia | Article in Journal | | 1993 |
| The notes of the Book of Armagh: a ninth-century witness to North Munster affairs? | Ó Riain, Pádraig | Article in Journal | | 2014 |
| The Nugent family and the diocese of Kilmore in the sixteenth and early seventeenth centuries | Lennon, Colm | Article in Journal | | 2001 |
| The O Clery book of genealogies | | Article in Journal | | 1951 |
| The O Dugenan Crucifixion Plaque of 1671 at Fenagh, Co. Leitrim | Timoney, Martin A. | Article in Journal | | 2018 |
| The O'Briens and MacMahons of Thomond, their patronage of the Franciscan Order, and their burial monuments | Ó Dálaigh, Brian | Article in Journal | | 2017 |
| The O'Briens of Thomond and twelfth-century church reform | Casey, M. G. | Article in Journal | | 1934 |
| The O'Dea mitre and crozier | Harpur, Anthony | Article in Book | | 2012 |
| The O'Neylons of Dysert and Austria | McInerney, Luke | Article in Journal | | 2018 |
| The oath of allegiance at Maynooth | Brady, John, d.1963 | Article in Journal | | 1960 |
| The obituary of Cathal óg Mac Maghnusa (1498) | Ó Dufaigh, Seosamh | Article in Journal | | 1998 |
| The obligation of Titus: a theological opinion concerning worthiness for episcopal office in the diocese of Ferns, 1645 | McHugh, Jason | Article in Journal | | 2017 |
| The office and function of coarb and erenagh in the Irish church | Barry, John | Thesis | | 1952 |
| The official Presbyterian Irish language policy in the 18th and 19th centuries | Fitzsimons, J. | Article in Journal | | 1949 |
| The officials of the church of Armagh in the early and central middle ages, to A.D. 1200 | Pettiau, Hérold | Article in Book | | 2001 |
| The old chapel in the late 1920s and early 1930s | Ó hÁdhmaill, Pádraig | Article in Book | | 2013 |
| The old church at Ballynascreen 1854 and other local writings attributable to Rev. Robert King, curate of Sixtowns, County Londonderry | Dunlop, EullKing, Robert | Monograph or Collective Volume | Moyola Books | 1988 |
| The old church silver of Clonfert diocese | Gibson, G. F.Jackson, R. Wyse, | Article in Journal | | 1941 |
| The old churches of Clontead parish | MacCarthy, Seán | Article in Journal | | 1986 |
| The Old Portal and Cathedral of Kilmore | Moss, Rachel | Article in Journal | | 2011 |
| The oldest eucharistic hymn | Murphy, T. A. | Article in Journal | | 1935 |
| The oldest manuscript witness of the Collectio canonum hibernensis | Meens, Rob | Article in Journal | | 2000 |
| The oldest register of the Parish of Derriaghy, County Antrim, Northern Ireland 1696-1772 | | Monograph or Collective Volume | W. N. C. Barr | 1981 |
| The Onomasticon and the work of the Placenames Branch | Mac Giolla Easpaig, Dónall | Article in Book | | 2011 |
| The opposition to the ecclesiastical legislation in the Irish reformation parliament | Bradshaw, Brendan | Article in Journal | | 1969 |
| The Oratory Dún Laoghaire | Pilkington, Elizabeth | Article in Journal | | 2020 |
| The Order of Deacons in early Irish canonical sources : a contribution to understanding the evolution of a 'Major Orders' in the western church | O'Loughlin, Thomas | Article in Journal | | 2017 |
| The Order of Deacons in early Irish canonical sources : a contribution to understanding the evolution of a ‘Major Orders’ in the Western church | O’Loughlin, Thomas | Article in Journal | | 2017 |
| The organ in the British Isles until 1600 | Caldwell, John | Article in Journal | | 1971 |
| The organization and function of an early Irish church settlement : what was Glendalough? | Etchingham, Colmán | Article in Book | | 2011 |
| The organization of the Irish church, 1603-1641 | Corish, Patrick J. | Article in Journal | | 1957 |
| The organs and organists of Armagh cathedral | Holmes, John | Article in Journal | | 1989 |
| The organs and organists of Saint Columba's Church, Omagh : a history : Church of Ireland, Parish of Drumragh | Allen, R. H. | Monograph or Collective Volume | R.H. Allen | 2004 |
| The organs and organists of the Cathedral church of Saint Patrick, Armagh, 1482-1998 | McCartney, Alistair G. | Monograph or Collective Volume | Friends of the Cathedral, St Patrick's Church of Ireland | 1999 |
| The origin of medieval parishes in Gaelic Ireland : the evidence from Kilfenora | Ni Ghabhlain, Sinead | Article in Journal | | 1996 |
| The origin of the written examination in religious knowledge in Irish secondary schools | Ó Mórdha, Seán C. | Article in Journal | | 1965 |
| The original statuary | Duffy, Joseph | Article in Book | | 1998 |
| The originality of the early Irish Church | Bethell, Denis L. T. | Article in Journal | | 1982 |
| The origins and development of radio broadcasting in Ireland, c.1913-1960 | Hawkins, Mary Bridget | Thesis | | 2001 |
| The origins of St Mary's Church, Ballygar,its history, and importance to Ballygar, Elphin diocese and Ireland. {1832-1863} | MacNamara, Jarlath | Article in Journal | | 2019 |
| The origins of the Catholic University of Ireland, 1845-54 | Vale, Mary D. | Article in Journal | | 1954 |
| The origins of the diocese of Waterford | Gwynn, Aubrey | Article in Journal | | 1942 |
| The origins of the Irish monastic tradition at Ratisbon (Regensburg) | Breatnach, Pádraig A. | Article in Journal | | 1980 |
| The Origins of the Medieval Parish Revisited | Empey, C. A. (Adrian) | Article in Book | | 2006 |
| The origins of the see of Dublin | Gwynn, Aubrey | Article in Journal | | 1941 |
| The other peregrinatio: Pilgrim nuns in medieval Regensburg and their Irish connections | Ó Riain-Raedel, Dagmar | Article in Book | | 2023 |
| The paleography of the 11 Latin citations in TCD MS 1337, pp. 329c–330b | Eska, Charlene M. | Article in Journal | | 2019 |
| The papacy and episcopal appointments in Ireland, 1305-34 | Williams, Patrick | Thesis | | 1961 |
| The papers of Lord Robert Loftus | Ainsworth, John F. | Article in Journal | | 1960 |
| The papers of Nicholas Archdeacon (bishop of Kilmacduagh and Kilfenora 1800-1823) | Murphy, P. J. | Article in Journal | | 1973 |
| The parish and the Ulster Plantation | Gillespie, Raymond | Article in Journal | | 2008 |
| The parish church of St Mary, Oughterard : the background to its construction, with an account of the dispute concerning title to its site | Mitchell, James | Article in Journal | | 2002 |
| The parish church of St. Colmanell, Ahoghill | Lee, W. H. A., Rev. | Monograph or Collective Volume | Newton Publishing Co. (printer) | c. 1911 |
| The parish churches of North Tipperary : commemorating a two-hundred year heritage | Hayes, William J.Kennedy, Joseph | Monograph or Collective Volume | Lisheen Publications | 2007 |
| The parish clergy of the Church of Ireland in the eighteenth century | Legg, Marie-Louise | Article in Book | | 2006 |
| The parish in medieval and early modern Ireland | | Monograph or Collective Volume | Four Courts Press for the Group for the Study of Irish Historic Settlement | 2006 |
| The Parish of Ardboe and its church history - from a lecture in 1872 | Twigg, Thomas, Jr | Article in Journal | | 2013 |
| The parish of Clontuskert : glimpses into its past | | Monograph or Collective Volume | Clontuskert Heritage Group | 2009 |
| The parish of Cloughbawn | Harte, Laurence | Article in Journal | | 1925 |
| The parish of Craigs in the County of Antrim | Boyd, Hugh Alexander | Monograph or Collective Volume | Observer Office [printer] | 1950 |
| The parish of Devenish and Boho | Elliott, E. G. | Monograph or Collective Volume | Oakdene | 1990 |
| The parish of Devenish, County Fermanagh : materials for its history | Steele, William B. | Monograph or Collective Volume | Fermanagh Times (printer) | 1937 |
| The Parish of Dungiven : memoirs of bygone days | Kelly, James, Rev. | Monograph or Collective Volume | Londonderry Sentinel (Printer) | 1935 |
| The Parish of Edenderry : Diocese of Derry | Law, Herbert Innes | Monograph or Collective Volume | Tyrone Constitution | 1949 |
| The parish of Inchicronan (Crusheen) | Coffey, Thomas | Monograph or Collective Volume | Ballinakella | 1993 |
| The parish of Iniscealtra | Madden, Gerard | Article in Book | | 1993 |
| The Parish of Inishmacsaint | Parke, William K. | Monograph or Collective Volume | Select Vestry, Parish of Inishmacsaint | 1982 |
| The parish of Kilfaughnabeg | Webster, Charles A. | Article in Journal | | 1929 |
| The parish of Kilfearagh, Co. Clare, 1835-50 | Murphy, Ignatius, Rev. | Thesis | | 1969 |
| The parish of Kilmeen (Boherbue-Kilkeam) | McCarthy, Louis | Article in Journal | | 1997 |
| The parish of Lambeg | Marshall, H. C., Rev. | Monograph or Collective Volume | Victor McMurray | 1933 |
| The parish of Maynooth | MacSweeney, Michael T. | Article in Journal | | 1940 |
| The parish of Maynooth (1040 A.D. - 1614 A.D.) | MacSweeney, Michael T. | Article in Journal | | 1940 |
| The parish of Maynooth (1614 A.D. - 1840 A.D.) | MacSweeney, Michael T. | Article in Journal | | 1940 |
| The Parish of St. John's Kilcluney: a bi-centenary history 1794-1994 | McCune, Jack | Monograph or Collective Volume | Trimprint [printer] | 1994 |
| The Parish of Termonmaguirke: a bi-centenary history 1792-1992 | Armstrong, Maurice A. | Monograph or Collective Volume | Graham & Sons Ltd. | 1991 |
| The parishes in the diocese of Killala : Tireragh, Erris, south Tirawley, north Tirawley | McHale, Edward | Monograph or Collective Volume | The author | 1985 |
| The parishes of Leckpatrick and Dunnalong : their place in history | Roulston, William J. | Monograph or Collective Volume | Ulster Local History Trust | 2000 |
| The Park Danes : pastimes and pubs | Hannan, Kevin | Article in Journal | | 1984 |
| The paruchia of St. Finbarr | O'Connor, Timothy P. | Thesis | | 1977 |
| The pastime of the elite : clubs and societies and the promotion of horse racing | Kelly, James, 1959- | Article in Book | | 2010 |
| The pastoral mission in the early Irish church | Corish, Patrick J. | Article in Book | | 1971 |
| The pastoral vision of Paul Cullen | O'Carroll, Ciaran | Article in Book | | 2011 |
| The Patronage of the Church and its Purposes | Luxford, Julian M. | Article in Book | | 2008 |
| The pattern day | MacMahon, Bryan | Article in Book | | 2012 |
| The penal laws and the Meath family of Strong | Brady, John, d.1963 | Article in Journal | | 1944 |
| The penal laws in North Kerry, 1677-1685 | Howard, Leonard | Article in Journal | | 1971 |
| The penal times, 1691-1800 | Cahill, Edward | Article in Journal | | 1939 |
| The people's primate : a memoir of Joseph Cardinal MacRory | Murphy, J. J. | Monograph or Collective Volume | Priory P. | 1946 |
| The pictorial history of the cathedral church of the Holy Trinity : Christ Church cathedral, Dublin | Crawford, M. V. | Monograph or Collective Volume | | 1967 |
| The Pipe Organs of Donegal | Fleming, Derek | Article in Journal | | 2020 |
| The Pipe Roll of Cloyne (Rotulus pipae Clonensis) | | Monograph or Collective Volume | Cloyne Literary and Historical Society | 1996 |
| The place of Irish saints in medieval English calendars | Henning, John | Article in Journal | | 1954 |
| The place of Irish saints in medieval English calendars | Hennig, John | Article in Journal | | 1954 |
| The place of seven wonders | Grenville-Nugent, Mrs. | Article in Journal | | 1948 |
| The place of St. Patrick's captivity | McGoldrick, P. J. | Article in Journal | | 1939 |
| The place of St. Patrick's captivity | O'Doherty, John Francis | Article in Journal | | 1939 |
| The place of the archdiocese of Dublin in the hagiographical tradition of the continent | Hennig, John | Article in Journal | | 1955 |
| The place of the Fathers in early Irish devotional literature | Hennig, John | Article in Journal | | 1955 |
| The Place-Names of Dindshenchas Érenn | Muhr, Kay | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| The plain style : the reformation, culture and the crisis in protestant identity | Brett, David | Monograph or Collective Volume | Black Square Books | 1999 |
| The plate of Trinity College in the time of Provost Baldwin | Alton, E. H. | Article in Journal | | 1950 |
| The plenary synod of Thurles | Ahern, John | Article in Journal | | 1951 |
| The plot against Fr. Nicholas Sheehy : the historical background | O'Connell, Philip | Article in Journal | | 1967 |
| The plundered tates : Cahill Duff O Connally and the bishop's land in Clones parish | Schlegel, Donald M. | Article in Journal | | 1991 |
| The Poetry in the Rennes Dindshenchas | Murray, Kevin | Article in Book | School of Celtic Studies, Dublin Institute for Advanced Studies | 2024 |
| The political and ecclesiastical extent of Scottish Dalriada | O'Neill, Pamela | Article in Journal | | 2005 |
| The political and religious thought of Florence Conry and Hugh McCaughwell | Mac Craith, Mícheál | Article in Book | | 2005 |
| The political background to the establishment of Maynooth College | O'Connell, Maurice R. | Article in Journal | | 1956 |
| The political context of Irish monasticism in seventh-century Francia: another look at the sources | Fox, Yaniv | Article in Book | | 2016 |
| The political role of the media in contemporary Ireland | Chubb, Basil | Article in Book | | 1984 |
| The political theory of Dr Edward Maginn, bishop of Derry, 1846-9 | Coulter, James A. | Article in Journal | | 1962 |
| The politics of Cardinal McCabe, archbishop of Dublin, 1879-85 | Woods, C. J. (Christopher John) | Article in Journal | | 1973 |
| The Poor Clare order in Ireland | Cunningham, Bernadette | Article in Book | | 2009 |
| The pope, a knight and a bishop on the edge of Christendom : the politics of exclusion in thirteenth-century Ireland | Marshall, John | Article in Journal | | 2023 |
| The pope, the prelate, the soldiers and the controversy : Paul Cullen and the Irish Papal Brigade | O'Connor, Anne | Article in Book | | 2011 |
| The popes and the ecclesiastical history of medieval Ireland : critical texts of the papal bulls, 1070-1254, with historical annotations | Sheehy, Maurice P., Rev. | Thesis | | 1960 |
| The post-Columban church | Cowan, I. B. | Article in Journal | | 1974 |
| The post-Reformation bishops of Kerry | O'Ryan, J. C. | Article in Journal | | 1997 |
| The practicalities of communication between Northumbrian and Irish churches, c. 635-735 | Edmonds, Fiona | Article in Journal | | 2009 |
| The practicalities of communication between Northumbrian and Irish churches, c.635-735 | Edmonds, Fiona | Article in Book | | 2009 |
| The practice of religious controversy in Dublin, 1600-1641 | Gaffney, Declan | Article in Book | | 1989 |
| The prayers before Mass on Sundays and holidays in Ireland | Brady, John, d.1963 | Article in Journal | | 1947 |
| The precinct of St John's Priory, Kilkenny, at the close of the Middle Ages | Bradley, John, 1954-2014 | Article in Journal | | 2012 |
| The Premonstratensians in Ireland | Flood, William Henry Grattan | Article in Journal | | 1913 |
| The presbyterian church in Ireland and the Government of Ireland Act (1920) | Barkley, John M. | Article in Book | | 1975 |
| The Presbyterian church in Mallow | Rutherford, Colman | Article in Journal | | 2013 |
| The Presbyterian revolution in Ulster, 1660-1690 | Gillespie, Raymond | Article in Book | | 1989 |
| The presbyterian synod and catholic emancipation, 1825-9 | Gallagher, J.R. | Thesis | | 1970 |
| The Presbyterians of Ulster 1680-1730 | Whan, Robert | Monograph or Collective Volume | Boydell | 2013 |
| The preservation of Céli Dé traditions and practices at Armagh | Follett, Westley | Article in Journal | | 2024 |
| The priest and politics in County Tipperary, 1850-1891 | O'Shea, James P. | Thesis | | 1979 |
| The priest and the Mass in Irish place-names | Mac Aodha, Breandán S. | Article in Journal | | 1992 |
| The priests and people of Killaloe diocese - after Cromwell : a review article | Ó Murchadha, Ciarán | Article in Journal | | 1996 |
| The priests and Young Ireland in 1848 | Gwynn, D. R. (Denis Rolleston), 1893-1972 | Article in Journal | | 1948 |
| The priests of the diocese of Limerick, 1878-1917 | Tobin, Matthew | Thesis | | 2006 |
| The primacy in the Irish Church | Ó Fiaich, Tomás | Article in Journal | | 2006 |
| The Primacy of Ireland : resident in the see of Armagh for fourteen centuries | Reeves, William | Monograph or Collective Volume | Dublin University Press [printer] | 1886 |
| The primates and the church lands of Armagh | Glancy, Michael | Article in Journal | | 1970 |
| The primatial controversy (1670-1728) : a bibliographical note | Wall, Thomas | Article in Journal | | 1939 |
| The Prince of Orange and the earl of Tyrone | Morrissey, Thomas J. | Article in Journal | | 1960 |
| The priory and hospital of New Gate : the evolution and decline of a medieval monastic estate | Hennessy, Mark | Article in Book | Cork University Press | 1988 |
| The priory and parish of Killeigh | Comerford, M., P.P. | Article in Journal | | 1883 |
| The priory of Llanthony Prima and Secunda in Ireland, 1172-1541 : lands, patronage and politics | Hogan, Arlene | Monograph or Collective Volume | Four Courts | 2008 |
| The private estate of James II | Kingston, John | Article in Journal | | 1960 |
| The Pro-Cathedral altar frontal | Kane, Eileen | Article in Book | | 2012 |
| The problem of reform in the Irish Cistercian monasteries and the attempted solution of Stephen of Lexington in 1228 | O'Dwyer, B. W. | Article in Journal | | 1964 |
| The proctor's accounts of Peter Lewis, 1564-1565 | | Monograph or Collective Volume | Four Courts | 1996 |
| The proctors' accounts of the parish church of St Werburgh, Dublin, 1481-1627 | | Monograph or Collective Volume | Four Courts Press in association with the Representative Church Body Library | 2009 |
| The progeny of St. Martin-in-the-Fields | Whiffen, Marcus | Article in Journal | | 1946 |
| The Proportions of the St Gall Plan: A Response to Werner Jacobsen’s Critique of the Use of the Square Root of Two, with a Statistical Analysis of the Techniques Employed in the Drawing | Fearn, Tom (appendix)Fernie, Eric | Article in Book | | 2021 |
| The Prosperous crozier and its inscription | Murray, GriffinÓ Riain, Pádraig | Article in Journal | | 2017 |
| The Prosperous, Co. Kildare, Crozier: archaeology and use. | Bourke, CormacHook, Duncan | Article in Journal | | 2017 |
| The Protestant reformation in Ireland, c.1590-1641 | Ford, Alan, 1956- | Thesis | | |
| The province and diocese of Armagh, 1417-71 | Lynch, Anthony | Article in Journal | | 1982 |
| The province and diocese of Armagh, 1417-71 | Lynch, Anthony | Thesis | | 1979 |
| The provision of Anglican places of worship in the parishes of Inishowen,1622-1733 | Roulston, William | Article in Journal | | 2018 |
| The provision, building and architecture of Anglican churches in the north of Ireland, 1600-1740 | Roulston, William J. | Thesis | | |
| The Psalter in early Irish monastic spirituality | McNamara, Martin | Article in Journal | | 1983 |
| The psalter of Cashel : a provisional list of contents | Ó Riain, Pádraig | Article in Journal | | 1989 |
| The public career of Rev Thomas Maguire, 1792-1847 | Ó Duigneáin, Proinnsíos | Article in Book | | 2019 |
| The purchase of Archbishop's Ussher's library in 1657 | Barnard, T. C. (Toby Christopher) | Article in Journal | | 1971 |
| The purpose of Adomnán's Vita Columbae | Picard, Jean-Michel | Article in Journal | | 1982 |
| The purpose of Cardinal Ó Fiaich | Faul, Denis | Article in Journal | | 1991 |
| The Quaker meeting houses of Ireland : an account of some 150 meeting houses and 100 burial grounds in Ireland | Butler, David M. | Monograph or Collective Volume | Irish Friends Historical Committee | 2004 |
| The quarrel among the Roman Catholic hierarchy over the national system of education in Ireland, 1838-41 | Larkin, Emmet | Article in Book | | 1964 |
| The Queen was in the parlour... | Lynch, Brian | Article in Journal | | 2011 |
| The question of religious conformity and nonconformity in the Irish refuge | Pittion, Jean-Paul | Article in Book | | 1987 |
| The R.T.E. book | Radio Telefís Éireann | Monograph or Collective Volume | Town House in association with R.T.E. | 1989 |
| The radical face of Paul Cardinal Cullen | Corish, Patrick J. | Article in Book | | 1985 |
| The radio catalogue : BBC Northern Ireland archives at the Ulster Folk and Transport Museum | | Monograph or Collective Volume | Ulster Folk and Transport Museum | 1993 |
| The radio catalogue : BBC Northern Ireland archives at the Ulster Folk and Transport Museum | Loughran, GráinneMcCavana, Marian | Monograph or Collective Volume | [s.n.] | 1993 |
| The Rawdon papers, consisting of letters on various subjects, literary, political, and ecclesiastical, to and from Dr John Bramhall, Primate of Ireland | | Monograph or Collective Volume | | 1819 |
| The reconstruction of the Church of Ireland : Bishop Bramhall and the Laudian reforms, 1633-1641 | McCafferty, John | Monograph or Collective Volume | Cambridge University Press | 2007 |
| The rector and students of the Irish College at Alcalá de Henares, Spain 1649-1785 | O Connell, Patricia | Article in Journal | | 1997 |
| The rectors and students of the Irish College at Alcalá de Henares, Spain 1649-1785 | O Connell, Patricia | Article in Journal | | 1996 |
| The rectors of Clonleigh since the Reformation | Edwards, William Macklin | Monograph or Collective Volume | [Clonleigh Parish] | 1884 |
| The rectors of Killinchy and Kilmood, Diocese of Down | Swanzy, Henry B. | Monograph or Collective Volume | R. Carswell & Son [Printer] | 1932 |
| The rectory ghost - Mr George West Pyper | Anonymous | Article in Journal | | 2017 |
| The Reformation and the transformation of urban space in Irish towns (based on the Irish Historic Towns Atlas) | Simms, Anngret | Article in Book | | 2013 |
| The reformation bishops of the diocese of Waterford and Lismore | Cowman, Des | Article in Journal | | 1984 |
| The Reformation charter of Christ Church Cathedral, Dublin, 1541 | Diamond, Ciaran | Article in Journal | | 1999 |
| The Reformation in Ireland : a study of ecclesiastical legislation | Holloway, Henry | Monograph or Collective Volume | | 1919 |
| The Reformation in the age of Jefferson | Ingram, Robert G. | Article in Book | | 2021 |
| The regicides in Ireland, 1 : Daniel Axtell, governor of Kilkenny; 2 : John Cooke and the 'high court of justice'; 3 : The sales of the Irish to the plantations | Williams, Joseph Batterson [i.e. Muddiman, Joseph George] | Article in Journal | | 1914 |
| The register of Kells | | Article in Book | | 1936 |
| The register of Milo Sweteman, Archbishop of Armagh, 1361-1380 | | Monograph or Collective Volume | Irish Manuscripts Commission | 1996 |
| The register of Nicholas Fleming : Archbishop of Armagh, 1404-1416 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2003 |
| The register of St Saviour's Chantry of Waterford. Registrum Cantariae S. Salvatoris Waterfordensis. BL, Harleian MS 3765 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2013 |
| The register of the diocese of Clogher | Flanagan, Patrick J. | Article in Journal | | 1953 |
| The register of the Liberties of Cashel, 1654-1657 | | Article in Journal | Parish Register Society of Dublin | 1907 |
| The register of the parish of Leixlip, Co. Kildare, 1665 - 1778 | | Monograph or Collective Volume | Representative Church Body Library | 2001 |
| The register of the parish of the Holy Trinity (Christ Church), Cork, from July 1643 to February 1668, with extracts from the parish books from 1664 to 1668 | Caulfield, Richard | Monograph or Collective Volume | Purcell & Co. | 1877 |
| The register of the reformed church at Le Mans, 1650-1685 | | Monograph or Collective Volume | Publications of the Huguenot Society of London | 1961 |
| The registers of Christ Church Cathedral, Dublin | | Monograph or Collective Volume | Irish Academic Press | 1998 |
| The regular clergy and the episcopate in Ireland, 1600-1650 | Ó hAnnracháin, Tadhg | Article in Book | | 2022 |
| The relations between Church and State in the age of emancipation | Nowlan, Kevin B. | Article in Journal | | 1961 |
| The relations of the Catholic Church and the state in England and Ireland, 1800-52 | Roche, K. F. | Article in Book | | 1961 |
| The relics of the apostles and early martyrs in the mission of St Patrick | Sheehy, Maurice P. | Article in Journal | | 1961 |
| The religious condition of Ireland, 1770-1850 | Yates, Nigel | Monograph or Collective Volume | Oxford University Press | 2006 |
| The religious dimension in Gladstone's Home Rule analysis | McCarthy, John-Paul | Article in Book | | 2011 |
| The religious life | Dalton, MichaelO’Brien, Rory | Article in Book | | 2015 |
| The remains at Temple-na-Skellig, Glendalough | Long, Harry | Article in Journal | | 1997 |
| The remains of ancient Irish monastic libraries | Gougaud, Louis | Article in Book | | 1995 |
| The remains of Irish monastic libraries | Gougaud, Louis | Article in Book | | 1940 |
| The repair of Dromacoo Old Church | Hamilton, T. | Article in Journal | | 1903 |
| The Reportorium Viride of John Alen, archbishop of Dublin, 1533 | White, Newport B. | Article in Journal | | 1941 |
| The representation of Gregory the Great in Irish sources of the pre-Viking era | Herbert, Máire | Article in Book | | 2011 |
| The Representative Church Body library and the creation of a Church of Ireland Archive | Refaussé, Raymond | Article in Journal | | 2014 |
| The Representative Church Body Library and the records of the Church of Ireland | Refaussé, Raymond | Article in Journal | | 1995 |
| The Representative Church Body Library, Dublin | Refaussé, Raymond | Article in Journal | | 1992 |
| The restoration of Creggan churchyard | Murphy, Jem | Article in Journal | | 1992 |
| The restoration of Rathmoyle Ancient Cemetery | Anonymous | Article in Journal | | 1998 |
| The restoration of St. Mary's Cathedral 1863-'78 | Claffey, John A. | Article in Book | | 1997 |
| The Retraction of Peter Walsh, OFM, 1688 | Fennessy, Ignatius | Article in Journal | | 1992 |
| The Reverend John Abernethy : the challenge of New Light theology to traditional Irish Presbyterian Calvinism | Holmes, Finlay | Article in Book | | 1996 |
| The right of patronage of the Maguires of Tempo | Faulkner, Anselm | Article in Journal | | 1977 |
| The rise and fall of the Clann Éinrí Aimhréidh Uí Néill : dynastic feuding and geopolitics in the late medieval Irish Sea world | Egan, Simon | Article in Journal | | 2024 |
| The rise of recusancy among the Dublin patricians, 1580-1613 | Lennon, Colm | Article in Book | | 1989 |
| The rite of church dedication in early medieval Ireland and the dedication scheme in the Angers manuscript 477 | Barbet-Massin, Dominique | Article in Journal | | 2016 |
| The road from Ardoyne : the making of a president | Mac Mánais, Ray | Monograph or Collective Volume | Brandon Press | 2004 |
| The role of Castilian royal bureaucracy in the formation of early-modern Irish literacy | O'Scea, Ciaran | Article in Book | | 2006 |
| The role of St Anthony's College, Louvain in establishing the Irish Franciscan college network, 1607-60 | Lyons, Mary Ann | Article in Book | | 2009 |
| The role of the church in early Irish regnal succession : the case of Iona | Warntjes, Immo | Article in Book | | 2010 |
| The Role of the Churches in the conflict in Northern Ireland | Hickey, John | Article in Journal | | 1985 |
| The role of the parish in building and maintaining Anglican churches in the north of Ireland 1660-1740 | Roulston, William J. | Article in Book | | 2006 |
| The Roman Catholic Church and the Irish Civil War | Murray, Patrick | Article in Journal | | 2015 |
| The Roman Catholic Church and the Nineteenth Century Irish Diaspora | Gilley, Sheridan | Article in Journal | | 1984 |
| The Roman Catholic church and the nineteenth century Irish diaspora | Gilley, Sheridan | Article in Journal | | 1984 |
| The Roman Catholic church in Ireland : 1898-1918 | Miller, David William, 1940- | Article in Journal | | 1968 |
| The Roman Catholic clergy and politics during the episcopacy of John Cantwell, 1830-1866 | Connell, Paul | Article in Book | | 2015 |
| The Roman Catholic parish registers of Wexford town from c.1672 : some considerations of their significance and use in historical research | Rafferty, Celestine | Article in Journal | | 1994 |
| The Romanesque arch at Wicklow church | Johnson, David M. | Article in Journal | | 1973 |
| The Romanesque doorway at Clonfert | Crawford, H. S. | Article in Journal | | 1912 |
| The Romanesque frescoes in Cormac's Chapel, Cashel | Perry, Mark | Article in Journal | | 1995 |
| The romanesque passion lintel at Raphoe, Co. Donegal | Harbison, Peter | Article in Book | | 1992 |
| The Romanesque portal at Clonfert Cathedral and its iconography | O'Keeffe, Tadhg | Article in Book | | 1995 |
| The Romanesque portal at Clonfert cathedral and its iconography | O'Keeffe, Tadhg | Article in Book | | 1995 |
| The Romanesque sculpture of Tuam | Stalley, Roger | Article in Book | | 1981 |
| The romanesque sculptures of Ardmore Cathedral, Co. Waterford | McNab, S. L. | Article in Journal | | 1988 |
| The round tower of Down | Rankin, J. Frederick | Article in Journal | | 1997 |
| The Round Towers of Fingal : Their hidden history | Ronan, Gerard | Monograph or Collective Volume | Fingal County Council | 2019 |
| The round towers of Ireland | Barrow, Viola | Article in Journal | | 1991 |
| The round towers of the County Kildare : their origin and use | Fitzgerald, Walter, Lord | Article in Journal | | 1895 |
| The royal dynasties of Dublin and the Isles in the eleventh century | Duffy, Seán | Article in Book | | 2006 |
| The royal supremacy and ecclesiastical revolution, 1534-47 | Hayes-McCoy, G. A. (Gerard Anthony) | Article in Book | | 1976 |
| The rule of St. Patrick | | Article in Journal | | 1904 |
| The Rule of Tallaght | | Article in Journal | | 1927 |
| The sacred and religious records of John McCormack | Clarke, Michael | Article in Journal | | 1946 |
| The sacred tenth | Quigley, E. J. | Article in Journal | | 1934 |
| The Salamanca archives | Richardson, Regina Whelan | Article in Book | | 1995 |
| The Salamanca letters : a catalogue of correspondence (1619-1871) from the Archives of the Irish colleges in Spain in the library of St. Patrick's College, Maynooth, Ireland = Las cartas salmantinas : un catalogo de correspondencia (1619-1871) de los colegios irlandeses in Espana en la biblioteca del colegio de San Patricio, Maynooth, Irlanda | | Monograph or Collective Volume | St. Patrick's College | 1995 |
| The Schottenkloster and the legacy of the Irish sancti peregrini | Ó Riain, Diarmuid | Chapter in Book | | 2017 |
| The Scotic debate : Philip O'Sullivan Beare and his Tenebriomastix | Caulfield, David | Article in Book | | 2009 |
| The Scots in early Stuart Ireland : Union and separation in two kingdoms | | Monograph or Collective Volume | Manchester UP | 2016 |
| The sculpture of the cloister of Jerpoint abbey | Rae, E. C. | Article in Journal | | 1966 |
| The sculptured crosses of Galloon | Lowry-Corry, Dorothy | Article in Journal | | 1934 |
| The second burial of Bishop Shanahan | Forristal, Desmond | Monograph or Collective Volume | Veritas | 1990 |
| The secular clergy of the archdiocese of Armagh, 1518-58 | Jefferies, Henry Allen | Thesis | | 1996 |
| The secular Franciscans | Conlan, Patrick, 1940- | Article in Book | | 2009 |
| The secular origin of the monastic enclosure wall of High Island, Co. Galway | Marshall, Jenny WhiteRourke, Grellan D. | Article in Journal | | 2000 |
| The secular origin of the monastic enclosure wall of High Island, Co. Galway | Marshall, Jenny White | Article in Journal | | 2000 |
| The secular priests of the diocese of Ferns : lists of priests who served in each parish, with short biographical notes | Gahan, John | Monograph or Collective Volume | Editions de Signe | 2000 |
| The See lands of Kildare | Devitt, Matthew | Article in Journal | | 1921 |
| The see of Tuam in Rath Breasail Synod | Connellan, M. J. | Article in Journal | | 1950 |
| The see-lands of the diocese of Ardfert : an essay in reconstruction | MacCotter, Paul | Article in Journal | | 2000 |
| The Semples and St. Selskar's | Murphy, Elaine | Article in Journal | | 2005 |
| The sequence of construction of Buttevant friary church in the thirteenth century | O'Keeffe, Tadhg | Article in Book | | 2013 |
| The sermon-diary of Richard FitzRalph, archbishop of Armagh | Gwynn, Aubrey | Article in Journal | | 1937 |
| The seven bishops | Henry, Françoise, 1902-1982 | Article in Journal | | 1946 |
| The shamrock and the swastika : German espionage in Ireland in world war II | Carter, Carrolle J. | Monograph or Collective Volume | Pacific Press | 1977 |
| The Shaping of Irish Presbyterian Attitudes to Mission, 1790-1840 | Holmes, Andrew R., 1977- | Article in Journal | | 2006 |
| The silence in Irish broadcasting | Purcell, Betty | Article in Book | | 1991 |
| The silent century, 1698-1829 | MacMahon, Joseph | Article in Book | | 2009 |
| The site of the bishop's court, Mullynure, Co. Armagh | Lynn, C. J. | Article in Journal | | 1976 |
| The Skellig story : ancient monastic outpost | Lavelle, Des | Monograph or Collective Volume | O'Brien Press | 1993 |
| The small late medieval church of Kilbarron, County Donegal | Brennan, Bridget | Article in Journal | | 2015 |
| The Snetzler organ in St. Peter's Parish Church, Drogheda | Henly, Randal Lewis | Monograph or Collective Volume | St. Peter's Parish Church | 2002 |
| The so-called Cloch Oir at Clogher Cathedral | Lawlor, H.C. | Article in Journal | | 1931 |
| The social history of modern Ulster | Moody, T. W. (Theodore William), 1907-1984 | Article in Book | | 1957 |
| The Society of St Patrick for Foreign Missions | Moynagh, J. | Article in Journal | | 1944 |
| The Society of the Sacred Heart ... 1875 | Finlay, John | Article in Journal | | 2020 |
| The sources for the early history of Ireland, 1 : Ecclesiastical. An introduction and guide | Kenney, J. F. (James Francis) | Monograph or Collective Volume | Columbia UP | 1929 |
| The sources for the early history of Ireland, ecclesiastical | Kenney, J. F. (James Francis) | Monograph or Collective Volume | Irish University Press | 1968 |
| The sources for the early history of Ireland, ecclesiastical | Kenney, J. F. (James Francis) | Monograph or Collective Volume | Four Courts | 1993 |
| The Spanish Court, Ecclesiastical Patronage, and the Irish College of Santiago de Compostela (1611–17) | O’Scea, Ciaran | Article in Book | | 2018 |
| The spirit of Maynooth | O'Gorman, P. | Article in Journal | | 1945 |
| The spirituality of St. Patrick's 'Confession' | Kinsella, Nivard | Article in Journal | | 1959 |
| The spirituality of the Céili Dé | Ó Fiannachta, Pádraig | Article in Book | | 1981 |
| The stained and leaded glass of Skerries [Talk given 2007] | Bashford-Synnott, Marie | Article in Journal | | 2010 |
| The stained glass | | Article in Book | | 1998 |
| The stained glass windows of St Ailbe's Church, Emly | O'Dwyer, Michael | Monograph or Collective Volume | Emly Parish Council | 2015 |
| The stained glass windows of St. Ailbe's Church, Emly | O'Dwyer, Michael | Monograph or Collective Volume | Emly Parish Council | 2015 |
| The state of religion in the province of Leinster during the 17th century, illustrated by extracts from synodical decrees | Comerford, M., P.P. | Article in Journal | | 1879 |
| The state of the church in the diocese of Down and Connor during the episcopate of Robert Echlin 1613-35 | Millsopp, Sandra A. | Article in Journal | | 1982 |
| The state of the church in the diocese of Down and Connor during the episcopate of Robert Echlin, 1613-1635 | Millsopp, Sandra Ann | Thesis | | 1979 |
| The statue : Cork's monument to Father Mathew, Apostle of Temperance | O'Callaghan, Antóin | Monograph or Collective Volume | Cork City Library | 2014 |
| The status of Coarb and Erenach | Barry, J. G. | Article in Journal | | 1960 |
| The status of coarbs and erenaghs | Barry, J. G. | Article in Journal | | 1960 |
| The status of Munster churches | Flahive, Joseph J. | Article in Book | | 2015 |
| The steeple, bells and clocks of Shankill parish | Irwin, John | Monograph or Collective Volume | Lurgan Society of Changeringers | 1959 |
| The stone-roofed church at Ardrass | "Omurethi" | Article in Journal | | 1911 |
| The stories buildings tell : engaging with architecture in Donegal | Boal, Marianne | Article in Journal | | 2012 |
| The story behind the stained glass window panel of the Madonna and Child in Foxroxk Church, created by the Harry Clarke Studios | Clare, Liam | Monograph or Collective Volume | Foxrock Local History Club | 2018 |
| The Story of a parish ... written to celebrate the centenary year of the Parish Church of Saint Stephen, Millfield (originally known as Saint Stephen's Free Church) | Rodgers, Terence, Rev. | Monograph or Collective Volume | [St Stephen's Parish] | 1969 |
| The story of Ardglass | Napier, James McCabe | Monograph or Collective Volume | [St Nicholas' parish, Ardglass] | 1966 |
| The Story of Clonmacnois | Giff, William Lee Martin, Rev. | Monograph or Collective Volume | Athlone Printing Works [printer] | 1954 |
| The story of Foxrock Church (1935-2010) | Clare, Liam | Monograph or Collective Volume | Foxrock Local History Club | 2010 |
| The story of Holy Trinity Church, Belfast, 1843 - 1941 - 1956 | Reid, S. H. | Monograph or Collective Volume | Howard Publications | 1956 |
| The story of Ireland | Hegarty, Neil | Monograph or Collective Volume | BBC Books | 2011 |
| The story of St. Nicholas' : Collegiate Church, Galway | Berry, J. Fleetwood | Monograph or Collective Volume | O'Gorman | 1912 |
| The Story of St. Patrick's Cathedral, Trim | Giff, W. L. M. | Monograph or Collective Volume | | 1959 |
| The Story of the Parish Church of Saint Mary, Belfast : written to celebrate the centenary of the consecration in November 1968 | Byers, Robert | Monograph or Collective Volume | [St Mary's Parish] | 1968 |
| The story of the united parishes of Glenavy, Camlin and Tullyrusk together with short accounts of the history of the different denominations in the Union | Watson, Charles | Monograph or Collective Volume | M'Caw, Stevenson & Orr [Printers] | 1892 |
| The Story of Trory | McNutt, J. A. M. | Monograph or Collective Volume | Graham & Sons | 1978 |
| The Stowe missal | Ó Riain, Pádraig | Article in Book | | 2009 |
| The Stowe Missal : its provenance and recent history | Fitzpatrick, Siobhán | Article in Book | | 2007 |
| The strange case of Bishop John Atherton | Winnett, Robert | Article in Journal | | 1988 |
| The strange case of the drunken bishop : a reformation mystery solved | Daniel, T. K. | Article in Journal | | 1980 |
| The structure and purpose of Adomnán's Vitae Columbae | Charles-Edwards, T. M. (Thomas Mowbray) | Article in Book | | 2010 |
| The Stuart nomination of Irish bishops, 1687-1765 | Giblin, Cathaldus | Article in Journal | | 1965 |
| The study and use of numbers in early Irish monasteries | Mc Carthy, Daniel P., 1945- | Article in Book | | 2011 |
| The study of early church architecture in Ireland : an Anglo-Saxon viewpoint, with an appendix on documentary evidence for round towers | Hamlin, AnnHare, Michael | Article in Book | | 1986 |
| The study of early Irish churches | Hamlin, Ann | Article in Book | | 1984 |
| The styles of Irish church architecture in the nineteenth century | Larmour, Paul | Article in Book | | 2000 |
| The Sulphate of Amonia Co. Ltd., Carnlough | McNeill, Linda | Article in Journal | | 1980 |
| The suppression of the see of Kells | Brady, John, d.1963 | Article in Journal | | 1945 |
| The swastika and the shamrock : British fascism and the Irish question, 1918-1940 | Douglas, R. M., 1963- | Article in Journal | | 1997 |
| The swastika at Ennis : symbol of the resurrection | Rynne, Etienne | Article in Journal | | 1990 |
| The Swift chalice | Jackson, Victor | Article in Journal | | 1988 |
| The synod of Cashel, 1101 : conservative or innovative? | Ó Corráin, Donnchadh | Article in Book | | 2004 |
| The synod of Dublin in 1080 | Holland, Martin | Article in Book | | 2002 |
| The synod of Kells in MS BL, Add. 4783 | Holland, Martin | Article in Journal | | 2005 |
| The Synod of Kells, 1152 | Battersby, William | Monograph or Collective Volume | William Battersby | 2002 |
| The synod of Thurles, 1850 : discipline and education | Doherty, Gillian M.,O'Riordan, Tomás | Article in Book | | 2011 |
| The Synod of Thurles, 1850 : documents | MacCarthy, John Paul,O'Riordan, Tomás | Article in Book | | 2011 |
| The synod of Ulster and the national board | Batterberry, R. | Article in Journal | | 1942 |
| The talking machine comes to Ireland | Carolan, Nicholas | Article in Book | | 2007 |
| The Tallaght martyrologies, redated | Ó Riain, Pádraig | Article in Journal | | 1990 |
| The Taoiseach's broadcast to the nation on the conclusion of the war in Europe. Delivered Wednesday, 16th May, 1945 | De Valera, Éamon | Article in Journal | | 1946 |
| The Tara broadcast | Corlett, Christiaan | Article in Journal | | 2003 |
| The tech midchúarta | Bhreathnach, Edel | Article in Journal | | 1998 |
| The templars, the witch and the wild Irish: vengeance and heresy in Medieval Ireland | Callan, Maeve Brigid | Monograph or Collective Volume | Four Courts Press | 2015 |
| The text of the Latin Bible in the early Irish church : some data and desiderata | McNamara, Martin | Article in Book | | 1987 |
| The theological and philosophical accomplishments of the Irish Franciscans : from Flaithrí Ó Maoil Chonaire to Bonaventure Baron | Stone, Martin W. F. | Article in Book | | 2009 |
| The Thomas Davis lectures, 1953-67 | Martin, F. X. (Francis Xavier), 1922-2000 | Article in Journal | | 1967 |
| The three orders of Irish saints : new light from early Church studies | de Bhaldraithe, Eoin | Article in Journal | | 2008 |
| The time of my life | Byrne, GayPurcell, Deirdre | Monograph or Collective Volume | Gill & Macmillan | 1989 |
| The times and life of Nicholas Sweetman, Bishop of Ferns, (1744-86) | Furlong, Nicholas | Article in Journal | | 1983 |
| The Tisrara medieval church Carrowntemple, Four Roads, Co. Roscommon : its archaeology and history | Higgins, Jim | Monograph or Collective Volume | Tisrara Heritage and Graveyard Restoration Committee | 1995 |
| The tithe question, 1830-32 | O'Donoghue, Patrick, Rev. | Thesis | | 1962 |
| The Tithe War in Murroe, 1831-8 | Tierney, Mark | Article in Journal | | 1965 |
| The Tithe War in north-east Carlow | Shannon, James P. | Article in Journal | | 2012 |
| The tithes and trials of Reverend Robert Morritt, Castlehaven, Co. Cork | Murphy, Donal | Article in Journal | | 2013 |
| The topographical development of Scandinavian and Anglo-Norman Waterford city | Bradley, John, 1954-2014Halpin, Andrew | Article in Book | | 1992 |
| The topography of Ardmore's ecclesiastical site in W.H. Brooke's drawing of the round tower (1824) | O'Connor, Dónal | Article in Journal | | 2010 |
| The town of Passage West and the parish of Marmullane | Webster, Charles A. | Article in Journal | | 1907 |
| The transformation of the Irish church in the twelfth and thirteenth centuries | Flanagan, Marie Therese | Monograph or Collective Volume | Boydell Press | 2010 |
| The transmission of song in national schools in mid nineteenth-century Ireland : social, religious and political values in canon | McCarthy, Marie | Article in Book | | 2007 |
| The transmission of the Hibernensis in Italy : tenth to the twelfth century | Reynolds, Roger E. | Article in Journal | | 2000 |
| The treaty of Limerick | Preston, Christopher | Article in Journal | | 1954 |
| The trial of Oliver Plunkett | Curtayne, Alice | Article in Journal | | 1954 |
| The tribes at Louvain : Francis Martin, S.T.D. | Spelman, J. P. | Article in Journal | | 1886 |
| The triumph of evangelicalism in the Synod of Ulster in the early nineteenth century | Holmes, Finlay | Article in Book | | 2002 |
| The trouble with reporting Northern Ireland : the British state, the broadcasting media and nonfictional representation of the conflict | Butler, David Henry Edgeworth | Monograph or Collective Volume | Avebury | 1995 |
| The Tudor diocese of Dublin: episcopal, government, ecclesiastical plticas and the enforcement of the Reformation, 1534-1590 | Murray, James | Thesis | | 1997 |
| The twelfth-century English transmission of a poem on the threefold division of the mind, attributed to Patrick of Dublin (d. 1084) | Boyle, Elizabeth | Article in Book | | 2017 |
| The twelfth-century reform | Gwynn, Aubrey | Monograph or Collective Volume | Gill & Macmillan | 1968 |
| The twelfth-century reform and Inis Pátraic | Holland, Martin | Article in Book | | 2004 |
| The twentieth century | Lyons, F. S. L. (Francis Stewart Leland) | Article in Book | | 1957 |
| The twentieth-century cathedral | MacCarthy, R. B. (Robert B.) | Article in Book | | 2009 |
| The twin churches book, Wexford, 1858-2008 | | Monograph or Collective Volume | Carraig Mór House | 2008 |
| The two cathedral chapters of medieval Dublin and their mutual relations, from the foundation of Holy Trinity (c.1030) to the death of Archbishop Bicknor (1349) | Hand, Geoffrey J. | Thesis | | 1954 |
| The two Patricks | Ryan, JohnUa Riain, Eóin | Article in Journal | | 1942 |
| The Ua Maelechlainn kings of Meath | Walsh, Paul, Revd, 1885-1941 | Article in Journal | | 1941 |
| The Uí Briain, the De Burgos and the Hiberno-Norman settlement of Limerick | Swift, Catherine | Article in Journal | | 2017 |
| The Uí Muiredaig and the abbacy of Glendalough in the eleventh to thirteenth centuries | Mac Shamhráin, Ailbhe | Article in Journal | | 1993 |
| The Uí Néill 695-743 : the rise and fall of dynasties | Charles-Edwards, T. M. (Thomas Mowbray) | Article in Journal | | 2002 |
| The Ulick O'Connor diaries, 1970-1981 : a cavalier Irishman | O'Connor, Ulick | Monograph or Collective Volume | John Murray | 2001 |
| The Ulster academies and the teaching of science (1785-1835) | Kennedy, David | Article in Journal | | 1944 |
| The Ulster Revival of 1859 : causes, controversies and consequences | Holmes, Andrew R., 1977- | Article in Journal | | 2012 |
| The ultramontane spirituality of Paul Cullen | Rafferty, Oliver P. | Article in Book | | 2011 |
| The Union of Synods in the context of mid-Antrim : a sesquicentenary account of the formation in 1840 of the General Assembly of the Presbyterian Church in Ireland, illustrated with documents of local religious history | Dunlop, EullHolmes, Finlay | Monograph or Collective Volume | Mid-Antrim Historical Group | 1990 |
| The Unitarian heritage : an architectural survey of chapels and churches in the Unitarian tradition in the British Isles | Hague, GrahamHague, Judy | Monograph or Collective Volume | | 1986 |
| The United States of America : the Irish immigrant, the famine and the Irish-American | Purcell, Richard J. | Article in Journal | | 1947 |
| The Use of Prestressing and Precasting in Concrete Water Tanks and Towers in Britain and Ireland | Cleland, J. B.Gilbert, StephenGould, Michael | Article in Journal | | 2004 |
| The use of vestry books in family history research | Ní Mhurchadha, Maighréad | Article in Journal | | 2014 |
| The Vatican Archives, the Papal Registers and Great Britain and Ireland : the Foundations of Historical Research | Sayers, Jane | Article in Book | | 2005 |
| The vegetational history of Monaincha over the last two millennia | Hall, Valerie | Article in Book | | 2007 |
| The Venerable Bede and the pastoral affirmation of the Christian message in Anglo-Saxon England | Eckenrode, T. R. | Article in Journal | | 1981 |
| The Verona homily collection and its Irish connections | Martin, Lawrence T. | Article in Book | | 1998 |
| The very earliest plan of Clonmacnoise | Manning, Conleth | Article in Journal | | 1998 |
| The vestry records of the Parish of St Audoen, Dublin, 1636-1702 | | Monograph or Collective Volume | Four Courts | 2012 |
| The Vestry Records of the Parish of St. John the Evangilist : Dublin, 1595-1658 | | Monograph or Collective Volume | Four Courts Press|The Representative Church Body Library | 2004 |
| The vestry records of the parishes of St. Catherine and St. James, Dublin, 1651-1692 | | Monograph or Collective Volume | Four Courts | 2004 |
| The Vestry records of the united parishes of Fingas, St Margaret's, Artane and the Ward, 1657-1758 | | Monograph or Collective Volume | Four Courts in association with the Representative Church Body Library | 2007 |
| The vicars of Newry, with lists of curates and churchwardens | Swanzy Henry B. | Monograph or Collective Volume | R. Carswell & Son | 1927 |
| The view from the shore : perceiving island monasteries in early medieval Ireland | Ó Carragáin, Tomás | Article in Journal | | 2013 |
| The Viking impact on Glendalough | Etchingham, Colmán | Article in Book | | 2011 |
| The Vikings and Irish monasteries | Morris, Christopher D. | Article in Journal | | 1979 |
| The village of Kill revisited | Cowman, Des | Article in Journal | | 2019 |
| The vision of St Fursa in thirteenth-century didactic literature | Wilson, Chris | Article in Book | | 2011 |
| The vision of Tnugnal | | Monograph or Collective Volume | | 1989 |
| The visit of Cardinal Vannutelli, Papal Legate, to Ireland, 1904 | Fitzgerald, Desmond | Article in Journal | | 2006 |
| The visitation note book of Charles Lindsay, bishop of Kildare, 1804-1808 | Refaussé, Raymond | Article in Journal | | 1987 |
| The visitation of the archbishop of Cashel to Waterford and Limerick, 1374-5 | Logan, F. Donald (Francis Donald), 1930- | Article in Journal | | 1976 |
| The visitation of the parishes of Armagh 'inter Hibernicos' in 1546 | Jefferies, Henry A. | Article in Book | | 2000 |
| The visual culture of the Hospitaller Knights of the Priory of Ireland | Caffrey, Paul | Article in Book | | 2015 |
| The vocational schools | Brenan, Martin | Article in Journal | | 1941 |
| The wardenship of Galway | Kelly, Richard J. | Article in Journal | | 1909 |
| The Wardenship of Galway | Kelly, Richard J. | Article in Journal | | 1909 |
| The Wardenship of Galway | Coen, Martin | Article in Book | | 1984 |
| The wardenship of Galway | Coen, Martin | Monograph or Collective Volume | Kenny's Bookshop | 1984 |
| The wardenship of Galway in the early-nineteenth century | Coen, Martin, Rev. | Thesis | | 1967 |
| The wartime broadcasts of Francis Stuart 1942-1944 | | Monograph or Collective Volume | Lilliput | 2000 |
| The Welsh chapel in Dublin | Blythe, Ernest, 1889-1975 | Article in Journal | | 1957 |
| The Welsh Cistercians and Ireland | Williams, David H. (David Henry), 1933- | Article in Journal | | 1980 |
| The wild and woolly west : early Irish Christianity and Latin orthodoxy | Bradshaw, Brendan | Article in Book | | 1989 |
| The Willis family of Wexford | Rafferty, Celestine | Article in Book | | 2005 |
| The windows of St Peter's | O'Brien, Seamus | Article in Journal | | 2012 |
| The works of Archbishop Laud | Laud, William | Monograph or Collective Volume | [s.n.] | 1847 |
| The world of bishops in religious orders in medieval Ireland, 1050-1230 | Bhreathnach, Edel | Article in Book | | 2018 |
| The Wyndham university scheme, 1903-4 | McCaffrey, Patricia | Article in Journal | | 1968 |
| The year of grace | Quigley, E. J. | Article in Journal | | 1942 |
| The ‘Real Lives’ controversy | Leapman, Michael | Article in Book | | 1996 |
| The “Glattjoch chapel in honour of St Virgil” - an Irish oratory in Austria/central Europe? | Fauler, Volker | Article in Journal | | 1994 |
| Theobald Mathew, O.F.M.Cap : a centenary tribute | Anonymous | Article in Journal | | 1956 |
| Theobald Walter and the abbey of Owney | Butler, R. | Article in Journal | | 1992 |
| Ther Dublin District Surveyors, 1844-1924 | O'Donoghue, Brendan | Article in Journal | | 2019 |
| Ther Monastic Community's Diet | Sheehan, John | Article in Book | | 2022 |
| These seventy years : a history of All Saints' Parish, Belfast | Leathem, William S. | Monograph or Collective Volume | News-Letter [Printer] | 1959 |
| Thesis abstract : the provision, building and architecture of Anglican churches in the North of Ireland, 1600-1740 | Roulston, William J. | Article in Journal | | 2005 |
| Things to be done in Irish history : 1, early period; 2, ecclesiastical history; 3, historical maps of Ireland | Anonymous | Article in Journal | | 1940 |
| Thirty centuries in south-east Antrim : the parish of Coole or Carnmoney | Clarke, H. J. St. J., Rev. | Monograph or Collective Volume | The Quota Press | 1938 |
| Thirty years a'growing : the past, present and the future of Irish broadcasting | Finn, T. Vincent | Article in Journal | | 1993 |
| Thje early Irish medievasl feasting house and its Iron Age origin | Warner, Richard B. | Article in Journal | | 2018 |
| Thomas A. Cobden, 1794-1842 : an architect in County Carlow | McDonnell, Thomas | Article in Book | | 2008 |
| Thomas Beckett and Ireland | Staunton, MichaelÓ Clabaigh, Colmán N. | Article in Book | | 2011 |
| Thomas Davis | McHugh, Roger Joseph | Article in Journal | | 1945 |
| Thomas Dease, bishop of Meath and some questions concerned with the rights to ecclesiastical property alienated at the reformation | Rice, Gerard | Article in Journal | | 1975 |
| Thomas Earley, manufacturer of ecclesiastical furniture and stained-glass windows, Upper Camden Street | Cannon, Max | Article in Journal | | 2021 |
| Thomas F. Ryan S.J. From Cork to China and Windsor Castle, 1889-1971 | Morrissey, Thomas J. | Monograph or Collective Volume | Columba Press | 2010 |
| Thomas Fleming, O.F.M., bishop of Leighlin (1432-c.58), cited to a provincial council at Ferns | Lynch, Anthony | Article in Journal | | 1993 |
| Thomas Milles, Bishop of Waterford and Lismore | Finnegan, Rachel | Article in Journal | | 2013 |
| Thomas of Ireland, the pseudo-Dionysius and the ecclesiastical hierarchy : a study of the three opuscula | Lawell, Declan | Article in Book | | 2009 |
| Thoughts on converting the Irish, 1715 | | Article in Journal | | 1962 |
| Thoughts on the early Christian church | Ó Conchúir, Doncha | Article in Journal | | 1993 |
| Three centuries of life in a Tyrone parish : a history of Donagheady from 1600 to 1900 | Roulston, William J. | Monograph or Collective Volume | Strabane History Society | 2010 |
| Three early 19th century diocesan reports | O'Shea, Kieran | Article in Journal | | 1977 |
| Three early nineteenth century diocesan reports | O'Shea, Kieran | Article in Journal | | 1977 |
| Three little-known monastic establishments of mediaeval Cork | O'Sullivan, Denis | Article in Book | | 1947 |
| Three mausolea and a church: the drawings of James C. Murphy for his book on Batalha of 1795 | McCarthy, Michael | Article in Journal | | 2008 |
| Three nineteenth-century drawings of Clonmacnoise | Harbison, Peter | Article in Book | | 2003 |
| Tigernán Ua Ruairc and a Twelfth-Century Royal Grant in the Book of Kells | Casey, Denis | Monograph or Collective Volume | Four Courts | 2020 |
| Tihilly High Cross: an exploration of the background, dating, interpretation and commentary on the Tihilly monastic site and High Cross | Harbison, Peter | Article in Journal | | 2013 |
| Timahoe and the Loígse : monasticism | Johnston, Elva | Article in Book | | 1999 |
| Tintern Abbey county Wexford : Cistercians and Colcloughs, eight centuries of occupation | | Monograph or Collective Volume | Friends of Tintern | 2003 |
| Tintern Abbey, county Wexford | Colfer, Billy | Article in Book | | 2003 |
| Tipperary material in Ossory archives | Ó Fearghail, Fearghus | Article in Journal | | 2006 |
| Tipperary's gift to China : three apostolic lives, 1863-1898 | | Monograph or Collective Volume | Kessinger Publishing | 2007 |
| Tírechán and the tripartite life | Mulchrone, Kathleen | Article in Journal | | 1953 |
| Tithe defaulters for Co. Tipperary, 1831 | McCormac, Stephen | Monograph or Collective Volume | Stephen McCormac | 1996 |
| Tithe, parish and priest in the ecclesiastical province of Dublin, c.1100-1540 | Smith, Charles V. | Thesis | | 2005 |
| To this you belong | Fair, J. A. | Monograph or Collective Volume | Northern Whig [Printer] | 1979 |
| Toasting the oatcake: an exploration of the breadf iron as a utensil in hearth-baking | Sexton, Regina | Article in Journal | | 2022 |
| Today and yesterday in Northern Ireland | Carson, Douglas | Monograph or Collective Volume | BBC | 1969 |
| Toeing the line : why the American press fails | Thomas, Jo | Article in Book | | 1991 |
| Togher celebrates and remembered | Bradley, John | Article in Journal | | 2017 |
| Tolerant bishops in an intolerant Church : the Puseyite threat in Ulster | Kerr, S. P. | Article in Book | | 1984 |
| Tomaltach Ua Conchobair, coarb of Patrick, 1181-1201 | Gwynn, Aubrey | Article in Journal | | 1977 |
| Tomás Ó Fiaich | Ó Glaisne, Risteárd, 1927-2003 | Article in Journal | | 1992 |
| Tomás Ó Fiaich - saol agus saothar i Maigh Nuad | Ó Doibhlin, Diarmaid | Article in Book | | 1995 |
| Tombstone inscriptions of the Carmelite abbey, Loughrea, Co. Galway | Martyn, Adrian James | Article in Journal | | 2007 |
| Tomfinlough (Fenloe) church and graveyard | Gilmore, Hilary | Article in Journal | | 2004 |
| Toward a definition of the Irish monastic town | Bradley, John, 1954-2014 | Article in Book | | 2008 |
| Towards 2000: a history of St. Mark's Church Armagh, 1811-2000 | Halligan, Marjorie | Monograph or Collective Volume | [The author] | 2002 |
| Towards a lasting peace in Ireland | Sinn Féin | Monograph or Collective Volume | Sinn Féin | 1992 |
| Towards a new 'Monasticon Hibericum' | Nicholls, K. W. (Kenneth W.) | Article in Journal | | 1984 |
| Towards a new 'Monasticon Hibernicum' | Gwynn, Aubrey | Article in Journal | | 1959 |
| Towers, spires and pinnacles : a history of the cathedrals and churches of the Church of Ireland | Hutchison, Sam, 1933- | Monograph or Collective Volume | Wordwell | 2003 |
| Townland and parish boundaries in County Limerick | Hodkinson, Brian | Article in Journal | | 2016 |
| Townland atlas of Ulster | Kane, Andrew | Monograph or Collective Volume | Ulster Historical Foundation | 2024 |
| Tracing the cultural legacy of Irish Catholicism : from Galway to Cloyne and beyond | Maher, EamonO'Brien, Eugene | Monograph or Collective Volume | Manchester University Press | 2017 |
| Tracing the sons of Brión | DePew, KyleGleeson, MauruceJaski, Bart | Article in Journal | | 2023 |
| Tracing your ancestors in Northern Ireland : a guide to ancestry research in the Public Record Office of Northern Ireland | Maxwell, Ian,McGrath, Grace | Monograph or Collective Volume | The Stationery Office | 1997 |
| Tradition and Irish local records | Edwards, R. W. D. (Robert Walter Dudley) | Article in Journal | | 1973 |
| Traditional religion in sixteenth-century Gaelic Ireland | Gillespie, Raymond | Article in Book | | 2014 |
| Transcription and Translation of an Astronomical Fragment, written by Philip O'Sullivan Beare and appended to 'Zoilomastix' (c. 1626) | Tracey, Kevin David | Article in Journal | | 2023 |
| Transcripts from the monuments in Callan Church | Shelly, Thomas | Article in Journal | | 1879 |
| Transeptal churches of the regular canons in Ireland | O’Keeffe, Tadhg | Article in Book | | 2019 |
| Transforming women religious? Church reform and the archaeology of female monasticism in Ireland | Collins, Tracy | Article in Book | | 2019 |
| Translating national identity into music: Representations of "Traditional Ireland" in A.J. Potter's television opera 'Patrick' | Zuk, Patrick
| Article in Journal | | 2010 |
| Trapped between two worlds : Edward Nangle, Achill Island and sectarian competition in Ireland, 1800-1862 | Kelley, Thomas | Thesis | | 2004 |
| Treasured heirlooms | MacGrath, K. M. | Article in Journal | | 1946 |
| Trinity College Mission in Belfast (founded 1912): a short story of its origin its growth its prospects | Barton, A. W.,Gwynn, R. M.,Hannon, GordonHayes, E. C.,Manning, W. R. F., | Monograph or Collective Volume | [Adams] | 1920 |
| Trinity Presbyterian Church, Bailieborough, the first 125 years : 1887-2012 | McKeague, Leslie | Monograph or Collective Volume | Bailie Publications | 2013 |
| Trinity tales : Trinity College Dublin in the sixties | NA | Monograph or Collective Volume | Lilliput | 2009 |
| Tristernagh Priory : the establishment of a colonial monastic house in the lordship of Meath (c.1200) | Eagar, Brian | Article in Book | | 1989 |
| Tristernagh Priory, Co. Westmeath : Colonial monasticism in medieval Ireland | O’Keeffe, Tadhg | Monograph or Collective Volume | Four Courts Press | 2018 |
| Trouble with the archbishop in thirteenth-century Dublin | Smith, Charles | Article in Book | | 2015 |
| Tuaim of the Rath Breasail synod | Connellan, M. J. | Article in Journal | | 1952 |
| Tuam by Thomas B. Costello, M.D., M.R.I.A. - Catholic Truth Conference Programme, 1936 | Costello, Thomas B. | Article in Journal | | 2014 |
| Tuamgraney Church | Ó Carragáin, Tomás | Article in Journal | | 2014 |
| Tuarascáil bheag ar Chill Maolchéadair | Ó Dubhda, Seán | Article in Journal | | 1953 |
| Túath, Manor and Parish: Kingdom of Fir Maige, Cantred of fermoy | MacCotter, Paul | Article in Journal | | 2012 |
| Tudor religious policy in Ireland, 1534-1558 | Edwards, R. W. D. (Robert Walter Dudley) | Article in Journal | | 1934 |
| Tulla, Co. Clare : ancient church site? | Griffin, Kevin A. | Article in Journal | | 2002 |
| Tulsk Abbey | Keegan, MarkO'Connor, KieranTiernan, Padraig | Article in Journal | | 1996 |
| Tuned out? a study of RTÉ radio 1 programmes Dear Frankie/Women Today and BBC 4’s Woman’s Hour | Doyle-O'Neill, Finola | Article in Journal | | 2018 |
| Turas Mhíchíl Uí Iceadha chun na Róimhe (cuid a dó): moilliú agus toirmeasc | Briody, Mícheál | Article in Journal | | 2016 |
| Turas Mhíchíl Uí Iceadha chun na Róimhe (cuid a haon) | Briody, Mícheál | Article in Journal | | 2015 |
| Turning the spit : Timothy Anglin and the roasting of D'Arcy McGee | Baker, William M. | Article in Book | | 1988 |
| Twelfth and thirteenth century Irish stonemasons in Regensburg (Bavaria) and the end of the 'school of the west' in Connacht | Harbison, Peter | Article in Journal | | 1975 |
| Twentieth-century Irish scholasticism : a survey of publications (1900-75) | Gaines, Éamonn | Article in Book | | 2009 |
| Twice built : The construction of St. Patrick's church, Monkstown, 1861-1866 | Conlon, Tom | Monograph or Collective Volume | Genealogical Society of Ireland | 2016 |
| Twice round on the hobby horse | Robinson, Anita | Monograph or Collective Volume | The Brehon Press | 2007 |
| Two Clogher constitutions | O'Sullivan, William, 1921-2000 | Article in Journal | | 1996 |
| Two Clogher constitutions | O'Sullivan, William, 1921-2000 | Article in Book | | 1994 |
| Two decorated fonts in Drogheda, Co. Louth | Roe, Helen M. | Article in Journal | | 1976 |
| Two early eighteenth century bishops of Killaloe | Murphy, Ignatius | Article in Journal | | 1986 |
| Two early medieval monasteries | Horn, Walter | Article in Book | | 1973 |
| Two ecclesiastical bells : St Patrick's (and its shrine) and the bell of Armagh | Batchelor, John | Article in Journal | | 1992 |
| Two historic chalices : the Rev. B. Peter Magauran chalice 1820, the Cloonclare chalice 1596 | Traynor, Owen | Article in Journal | | 1983 |
| Two hundred years of Shandon bells : a short account of the church and bells of St Ann, Shandon, Cork | Tuckey, J. W. T. | Monograph or Collective Volume | [St Ann, Shandon] | 1952 |
| Two Meath churches | Brandt, RuthMcCormick, Liam | Article in Journal | | 1983 |
| Two Romanesque fonts in Wexford. | Corlett, Christiaan | Article in Journal | | 2012 |
| Two sixteenth century Munster primates : Donnchadh Ó Taidhg (1560-62) & Richard Creagh (1564-85) | O'Brien, W. P. | Article in Journal | | 1989 |
| Two thousand years of Christianity and Ireland : lectures delivered in Christ Church Cathedral Dublin, 2001-2002 | | Monograph or Collective Volume | Columba | 2006 |
| Two Wexford priests and '98 | MacGrath, Kevin | Article in Journal | | 1948 |
| Two Wexford priests and '98 | MacGrath, Kevin | Article in Journal | | 1948 |
| Uaitéar Ó Loingsigh, Easbog Chluain Fearta (1647-63) | Mac Fhinn, Pádraig Eric, 1895-1987 | Article in Journal | | 1942 |
| Uí Máil and Glendalough | Mac Shamhráin, Ailbhe | Article in Book | | 2011 |
| Uilliam Buide Ó Cellaig and the late medieval renaissance of the Uí Maine lordship | Curley, Daniel | Article in Book | | 2021 |
| Ulster 1969 : the fight for civil rights in Northern Ireland | Hastings, Max | Monograph or Collective Volume | Gollancz | 1970 |
| Ulster awakened : the '59 revival reconsidered | Hill, Myrtle | Article in Journal | | 1990 |
| Ulster loyalism and the British media | Parkinson, Alan | Monograph or Collective Volume | Four Courts | 1998 |
| Ulster presbyterianism and Irish nationalism | Holmes, Finlay | Article in Book | | 1982 |
| Ulster Presbyterianism as a Popular Religious Culture, 1750-1860 | Holmes, Andrew R., 1977- | Article in Journal | | 2006 |
| Ulster Protestantism | Beckett, J. C. (James Camlin) | Article in Book | | 1957 |
| Ulster since 1800, second series : a social survey | | Monograph or Collective Volume | British Broadcasting Corporation | 1957 |
| Ulster society before 1800 | Beckett, J. C. (James Camlin) | Article in Book | | 1957 |
| Ulster unionism and British broadcasting journalism, 1924-1989 | Butler, David | Article in Book | | 1991 |
| Ulsterheart : an ancient Irish habitation | Ingram, Brett | Monograph or Collective Volume | All-Ireland Heritage | 1989 |
| Ulsterville Presbyterian church Belfast : a history | Carson, C. T. E. | Monograph or Collective Volume | Ulsterville Presbyterian Church | 1992 |
| Ultramontanism in Quebec and the Irish connection | Bowen, Desmond | Article in Book | | 1988 |
| Un diocése de l'Église Établei d'Irlande à l'Epoguq Georgienne d'Aprés une visite episcopale : Ossory | Loupès, Philippe | Article in Journal | | 1983 |
| Un diocèse établie d'Irlande à l'éopoque georgienne, d'après une visite épiscopale : Ossory | Loupès, Philippe | Article in Journal | | 1983 |
| Un recueil de conférences monastiques irlandaises du VIIIe siècle | David, P. | Article in Journal | | 1937 |
| Uncovering an Anglo-Norman manor and deserted medieval village | Rheinisch, Siobhán | Article in Journal | | 2013 |
| Understanding the abbacy: an episcopal manor and its landscape at Ardquin, county Dowm | McQuillan, Liam | Article in Journal | | 2018 |
| Une diocèse de l'Église établie d'Irlande à l'époque georgienne, d'après une visite épiscopale : Ossory | Loupès, P. | Article in Journal | | 1983 |
| Unenthusiastic democrats : the emergence of Irish democracy | Garvin, Tom | Article in Book | | 1993 |
| Unfinished business: Thomas Duff of Newry | Casey, Christine | Article in Journal | | 2019 |
| Unfinished pilgrimage : the story of Belfast Cathedral | Young, John A. | Monograph or Collective Volume | Friends of Belfast Cathedral | 1945 |
| Unforgivable trespasses : the Irish Hospitallers and the defence of their rights in the mid-thirteenth century | Virtuani, Paolo | Article in Book | | 2015 |
| Unfulfilled mediocrity: the hapless career of Dominick Madden in the west of Ireland | McCarthy, Patricia,Mulligan, Kevin V. | Article in Journal | | 2006 |
| Union of the dioceses of Glendaloch and Dublin in 1216 | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1930 |
| United in Crime | Hyde, Harford Montgomery | Monograph or Collective Volume | William Heinemann | 1955 |
| United Irishmen and Unionists : Irish Presbyterians, 1791 and 1886 | Holmes, Finlay | Article in Book | | 1989 |
| United Methodism, ecumenism and acclesiology | Abraham, William J. | Article in Journal | | 2016 |
| Universities : English and Irish | Tierney, Michael | Article in Journal | | 1944 |
| University Church : towards a stylistic context | McCarthy, Michael (Michael Joseph), 1939-2010 | Article in Journal | | 2003 |
| Unlikely radicals : Irish post-primary teachers and the ASTI, 1909-2009 | Cunningham, John, 1957- | Monograph or Collective Volume | Cork University Press | 2009 |
| Unrevolutionary England, 1603-1642 | Russell, Conrad Sebastian Robert, 5th earl Russell, 1937-2004 | Monograph or Collective Volume | | 1990 |
| Updating the Onomasticon: challenges | Nic Cárthaigh, Emma | Article in Book | | 2011 |
| Urbanisation and the milieux of factory life : Gilford/Dumbarton, 1825-1914 | Cohen, Marilyn | Article in Book | | 1993 |
| Urney Church | O'Connell, Mary | Article in Journal | | 2000 |
| Using church records in family research : Alexander Forrest of Dungiven, county Derry | Forrest, R. | Article in Journal | | 2003 |
| Ussher and the Church of Ireland | Knox, R. Buick | Article in Journal | | 1960 |
| Values, limits and metaphysics | McEvoy, James | Article in Book | | 2009 |
| Varieties of uniformity : the first century of the Church of Ireland | Clarke, Aidan | Article in Book | | 1989 |
| Vatican archives Minutae brevium in forma gratiosa relating to Clogher diocese | Haren, M. J. | Article in Journal | | 1985 |
| Vatican II : the Irish experience | Lane, Dermot A. | Article in Book | | 2004 |
| Vatican involvement in the Irish Civil War: Monsignor Salvatore Luzio's Apostolic delegation, March-May 1923 | McCabe, Michael P., 1977- | Article in Journal | | 2010 |
| Venice in Cavan : the career of William Bedell, 1572-1642 | McCafferty, John | Article in Book | | 2009 |
| Versus Sancti Columbani : a problem re-stated | Bieler, Ludwig | Article in Journal | | 1951 |
| Vestry Book of the Parish of Aghalow (Caledon Co. Tyrone) with an account of the family of Hamilton of Caledon 1691-1807 | Marshall, John J. | Monograph or Collective Volume | Tyrone Printing Co. | 1935 |
| Vestry minutes - a useful tool | Heueston, John | Article in Journal | | 2004 |
| Vicissitudes of an Irish Catholic family under Henry VIII and Elizabeth | Ronan, Myles V. (Myles Vincent) | Article in Journal | | 1953 |
| Victorius vs Dionysius : the Irish Easter controversy of AD 689 | Warntjes, Immo | Article in Book | | 2015 |
| View from the west : an Irish perspective on West Saxon dynastic practice | Woolf, Alex, 1963- | Article in Book | | 2001 |
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| Vindiciae Patricianae : remarks on the present state of Patrician studies | Bieler, Ludwig | Article in Journal | | 1953 |
| Vir Apostolicus : St. Peter and the claim of apostolicity in early medieval Ireland | Picard, Jean-Michel | Article in Book | | 2015 |
| Virgil als abt und Bischof von Salzburg | Wolfram, Herwig | Article in Book | | 1985 |
| Virgil als geistiger Vater der Slawenmission und der ältesten slawischen Kirchensprache | Kronsteiner, Otto | Article in Book | | 1985 |
| Virgil und die Salzburger Slawenmission | Kahl, Hans-Dietrich | Article in Book | | 1985 |
| Virgils Bild strahlt nun heller | Ritschel, Karl Heinz | Article in Book | | 1985 |
| Viscount Ards and the presbytery : politics and religion among the Scots of Ulster in the 1640s | Armstrong, Robert (Robert Matthew) | Article in Book | | 2009 |
| Visions materialised : the building of St Colman's Cathedral, Cobh (1868-1917) | Wilson, Ann | Article in Book | | 2004 |
| Visitatio regalis of Ardagh, 1615 | Gray, P. | Article in Journal | | 1940 |
| Visualizing Ireland's first cardinal | Cullen, Fintan | Article in Book | | 2011 |
| Vita Sancti Cóemgeni : an edition of the earliest manuscript version | Ó Riain-Raedel, Dagmar | Article in Book | | 2011 |
| Voluntaryism within the established Church in nineteenth century Belfast | Kerr, S. P. | Article in Book | | 1986 |
| Waiting for the registrar : appeal at the metropolitan court of Armagh | Sughi, Mario A. | Article in Journal | | 1999 |
| Wales, Munster and the English south west : contrasting articulations with the Atlantic world | Evans, Chris | Article in Book | | 2011 |
| Walter Wellesley, bishop of Kildare, 147? - 1539 | Valkenburg, Augustine | Article in Journal | | 1970 |
| War at a Distance : Court-Martial Narratives in the Eighteenth Century | Alryyes, Ala | Article in Journal | | 2008 |
| Was O'Connell necessary? Sir Joseph Dillon, Scotland, and the movement for Catholic Emancipation | Aspinwall, Bernard | Article in Book | | 1984 |
| Was Sulien at Glendalough? | Doherty, Charles | Article in Book | | 2011 |
| Was the Builder of the ‘Crazy Vault’ Actually Crazy? Reaction and Response in the Thirteenth Century at Lincoln Cathedral | Alexander, Jennifer S. | Article in Book | | 2021 |
| Water power as a factor of industrial location in earlymedieval Ireland:the environment of the early Irish water mill | Rynne, Colin | Article in Journal | | 2009 |
| Waterford 1470: Dean John Collyn and the Chantry Chapel of St Saviour | Byrne, Michael | Monograph or Collective Volume | Choice Publishing | 2013 |
| Waterford and Westminster Abbey | Brophy, Anthony | Article in Journal | | 2018 |
| Waterford diocese, 1096-1363, part 4 : the diocesan chapter and extents of the diocese | O'Neill, Assumpta | Article in Journal | | 1992 |
| We like the red bricks | Bingham, Barbara | Article in Journal | | 2008 |
| Welcoming, witnessing and waiting to serve : a short history of Lucan Methodist Church | Waddington, Shelagh B. | Monograph or Collective Volume | Lucan Methodist Church | 2004 |
| Well worth a visit : Knockbreda parish church and its architect | Dixon, Hugh | Article in Book | | 2003 |
| Welsh names in Ireland | Price, Roger T. | Article in Book | | 1998 |
| Were early Irish church establishments under lay control? | Holland, Martin | Article in Book | | 2006 |
| Westport's Presbyterian Church and its congregation | Crowe, Noelene Backett | Article in Journal | | 2018 |
| What a bishop of the Church of Ireland can do. An exposure of a scandal | Westropp, C. Roberts, Rev. | Monograph or Collective Volume | Hillhouse | 1909 |
| What did the Royal almoner do in Britain and Ireland, c. 1450-1700 | Houston, Robert A. | Article in Journal | | 2010 |
| What happened to Fr Seán Fagan? | Hanley, Angela | Monograph or Collective Volume | Columba Press | 2019 |
| What the Vikings did for fun? Sports and pastimes in medieval northern Europe | Gardela, Leszek | Article in Journal | | 2012 |
| What were Patrick's alphabets? | Márkus, Gilbert | Article in Journal | | 1996 |
| When monks lived on the Saltees | Murphy, Hilary | Article in Journal | | 2012 |
| When the O'Tunneys went north? The late medieval architecture of Devenish in an Ossory architectural context | O'Donovan, Danielle | Article in Journal | | 2015 |
| Where absence is a presence: commemorative minor placenames in Meath-Westmeath | Dunne, Michelle
| Article in Journal | | 2019 |
| Where Donard guards | Russell, Nicholas | Monograph or Collective Volume | Ballaghbeg Books | 2007 |
| Where neither moth nor rust doth corrupt | Dempsey, Michael | Article in Journal | | 2006 |
| Where was Ráith Breasail? | Ó Murchadha, Diarmuid | Article in Journal | | 1999 |
| Where was Rath Breasail's Sliab Beatha? | Schlegel, Donald M. | Article in Journal | | 2012 |
| Whitby and All That : The Search for Anglican Origins | Holder, Arthur G. | Article in Journal | | 2003 |
| Whitby and Clonmacnoise | Emerick, Keith | Article in Book | | 2003 |
| White Island church door | Davies, Oliver | Article in Journal | | 1939 |
| White Island, Lough Erne : its ancient church and unique sculptures | Lowry-Corry, Dorothy | Article in Journal | | 1930 |
| Who is leading? Archbishop John Thomas Troy and the priests and people in the Archdiocese of Dublin, 1787-1823 | McNally, Vincent J. | Article in Journal | | 1995 |
| Who succeeded Blessed Oliver Plunkett? | Ó Fiaich, Tomás | Article in Journal | | 1956 |
| Who was Coroticus? | Tolstoy, Nikolai | Article in Journal | | 1962 |
| Who were the nuns in early modern Ireland? | McShane, Bronagh Ann | Article in Book | | 2023 |
| Who will be Ireland's next canonised saint? : a study of Blessed Oliver Plunkett | Bastible, J. | Article in Journal | | 1939 |
| Why didn't Kevin Keegan play for Ireland? contrasting narratives of the Irish in Britain | McLoone, Martin | Article in Journal | | 2011 |
| Why the Reformation failed in Ireland : une question mal posée | Canny, Nicholas P. | Article in Journal | | 1979 |
| Why was Oliver Plunket arrested? | Brady, John, d.1963 | Article in Journal | | 1955 |
| Why were there so few papal provisions in thirteenth-century Dublin? | Smith, Thomas W. | Article in Book | | 2020 |
| Wicklow and the Eucharistic Congress 1932 | Finlay, John | Article in Journal | | 2012 |
| Wicklow through the Millennia | Cantwell, Ian | Article in Journal | | 2003 |
| Wicklow's "hidden" heritage | Jennings, Robert, Canon | Article in Journal | | 2003 |
| Wide-eyed in medialand : a broadcasters journey | Tuohy, Denis | Monograph or Collective Volume | Blackstaff Press | 2005 |
| Wider Archaeological Contexts for Skellig Michael: Corcu Duibne and Insular Monasticism | Ó Carragáin, Tomás | Article in Book | | 2022 |
| Will they ever stop fighting...? The Bishop of Cork and the Regulars in 1815 | Conlan, Patrick, 1940- | Article in Journal | | 2010 |
| William Bathe, S.J. (1564-1614) | Kingston, John | Article in Journal | | 1954 |
| William Bathe, S.J., recusant scholar, 1564-1614 : 'weary of the heresy' | Ó Mathúna, S. P. | Article in Journal | | 1988 |
| William Burges (1827-1881) and the building of St. FinBarre's cathedral | Beckett, J. C. | Monograph or Collective Volume | [Friends of St FinBarre's Cathedral] | 1983 |
| William Connor Magee, the Church of England and the Church of Ireland | Megahey, Alan | Article in Book | | 2006 |
| William Crolly, Archbishop of Armagh 1835-49 | McCauley, Ambrose | Article in Journal | | 1989 |
| William Crolly, archbishop of Armagh, 1835-1849 | Macaulay, Ambrose | Monograph or Collective Volume | Four Courts | 1994 |
| William Dool Killen (1806-1902) : a Presbyterian perspective on Irish ecclesiastical history | Kirkpatrick, Laurence | Article in Book | | 2017 |
| William Fisher and the church of the poor : the story of Teampol na mBoct in Altar Townland, West Cork | | Monograph or Collective Volume | [Kilmoe Union of Parishes] | 1997 |
| William IV and his Catholic subjects | Allen, W. G. | Article in Journal | | 1957 |
| William J. Walsh, archbishop of Dublin | Walsh, Patrick | Monograph or Collective Volume | Talbot Press | 1928 |
| William King (1650-1729), man of faith and reason | Richardson, Joseph | Thesis | | 1998 |
| William Mark Duke, archbishop | Walsh, C. J. | Article in Journal | | 1988 |
| William Marshall and Ireland | | Monograph or Collective Volume | Four Courts Press | 2017 |
| William McIlwaine and the 1859 Revival in Ulster : a study of Anglican and evangelical identities | Ritchie, Daniel | Article in Journal | | 2014 |
| William Powell at Maynooth : an episode of religious politics in 1630s Kildare | Gillespie, Raymond | Article in Journal | | 2019 |
| William Reeves, 1815-92 | Hamlin, Ann | Article in Book | Four Courts | 2012 |
| William Reeves, historian, in the shadow of the second reformation | Ó Riain, Pádraig | Article in Journal | | 2018 |
| William Somerwell's notarial, memorandum book and Archbishop John May | | Article in Journal | | 2001 |
| William Thomas Latimer (1842-1919); churchman and historian | Ó Conluain, Proinsias | Article in Journal | | 2006 |
| William Walsh, first archbishop of Halifax (1804-1858) | Kelly, Charlotte | Article in Journal | | 1945 |
| Willowfield parish church, Belfast, 1872-1972 | Taylor, A. R. | Monograph or Collective Volume | [A.R. Taylor] | 1972 |
| Wills and other probate records : a practical guide to researching your ancestor's last documents | Grannum, KarenTaylor, Nigel | Monograph or Collective Volume | National Archives | 2004 |
| Window and mirror : RTÉ television, 1961-2011 | Bowman, John | Monograph or Collective Volume | Collins Press | 2011 |
| With God's assistance. On the 150th anniversary of its completion, Michael O'Neill traces key chapters in the Pakenham-Guinness restoration of St Patrick's Cathedral 1845-1865 | O'Neill, Michael | Article in Journal | | 2015 |
| With one foot in the font : the failed baptism of the Frisian king Radbod and the 8th-century discussion about the fate of unbaptized forefathers | Meens, Rob | Article in Book | | 2015 |
| Witness in the city: a history of St. Thomas' Parish Church, Belfast | Douglas, Carol,Douglas, Colin,Douglas, Mervyn | Monograph or Collective Volume | [St. Thomas' Parish Church] | 2002 |
| Women and patriotism in eighteenth-century Ireland | O'Dowd, Mary | Article in Journal | | 2006 |
| Women and sexuality in nineteenth-century Ireland | McLoughlin, Dympna | Article in Journal | | 2001 |
| Women and the Reformation in Tudor Ireland | Jefferies, Henry A. | Article in Journal | | 2022 |
| Women in Irish community radio | McGann, Nessa | Article in Book | | 2007 |
| Women's monastic enclosures in early Ireland : a study of female spirituality and male monastic mentalities | Bitel, Lisa M., 1958- | Article in Journal | | 1986 |
| Woodside, Sandyford | Van Turnhout, Michael | Article in Journal | | 2016 |
| World War I chalice returns home | Canning, B. J. (Bernard J.) | Article in Journal | | 2013 |
| Would the real Gerry Ryan please stand up | Ryan, Gerry | Monograph or Collective Volume | Penguin Ireland | 2008 |
| Writing Robert Dunne : Brisbane's first Catholic archbishop | Byrne, Neil J. | Article in Book | | 1995 |
| Written on the wind : personal memories of Irish radio | | Monograph or Collective Volume | Radio Telefís Éireann | 1976 |
| Yeats and Castiglione : poet and courtier | Salvadori, Corinna | Monograph or Collective Volume | Allen Figgis | 1965 |
| Yeats's radiogenic poetry : oral traditions and auditory publics | Bloom, Emily C. | Article in Journal | | 2011 |
| Your parish and its history | Gleeson, Dermot F. | Article in Journal | | 1960 |
| Zula the Greek | Cooper, Joseph | Article in Journal | | 2000 |
| Zur Rolle der Iren im östlichen Vorfeld des agilolingischen und frühkarolingischen Baiern | Kahl, Hans-Dietrich | Article in Book | | 1982 |
| Zur Spiritualität des frühen irischen Mönchtums | Vogt, H. J. | Article in Book | | 1982 |
| [Ellis's] Irish educational directory and scholastic guide : containing full information as to the Irish universities and professional schools, and the institutions in Ireland for promoting intermediate and primary education, with complete alphabetical lists of Irish colleges and schools | Ellis, W. E. | Monograph or Collective Volume | | 1883 |
| ‘A powerful Hibernese’ : Luke Wadding and his diplomatic role in seventeenth-century Rome | Binasco, Matteo | Article in Journal | | 2017 |
| ‘Ag so scéal uafásach eile...': scéalaíocht na seanmóire. | Ó Dúshláine, Tadhg | Article in Book | | 2000 |
| ‘Living in an elastic-sided world’ : John Butler Yeats and Lady Gregory | Pethica, James L. | Article in Book | | 2016 |
| ‘On the brink of the wave’: Towards an archaeology of female religious in early medieval Ireland | Collins, Tracy | Article in Book | | 2023 |
| ‘Roving vultures’ : television news and the outbreak of the troubles in Northern Ireland | Doherty, Martin | Article in Journal | | 2019 |
| ‘Standing one's ground' : religion, polemic and Irish history since the Reformation | Ford, Alan, 1956- | Article in Book | | 1995 |
| ‘Suitable men of good repute’ and a ‘public fornicator’: the many priors of St John’s hospital in Dublin | O’ Keeffe, Grace | Article in Book | | 2023 |
| ‘The Construction and Decoration of Cormac’s Chapel at Cashel’: Some Recent Observations ‘After’ Professor Roger Stalley | Mulvin, Lynda S | Article in Book | | 2021 |
| ‘The Pale at prayer’: lived religious experience in Anglo-Norman: Dublin’s two cathedrals | Sullivan, John William | Article in Book | | 2020 |
| “Casting and gathering”: Chris Fox the librarian | Ní Bhróithe Clements, Aedín | Article in Book | | 2018 |
| “People mired in history”: Sebastian Barry and Cultural Memory
in a European perspective | Abbate Badin, Donatella | Article in Book | | 2015 |
| “Well, we didn’t pass a bit o’ remarks on it. It was second nature to us” : the rituals of fasting in Ireland before Vatican II | Deleuze, Marjorie | Article in Journal | | 2018 |