| A collection of prehistoric axe heads at St. Patrick's College, Carlow | Cooney, GabrielO'Keeffe, Tadhg | Article in Journal | | 1994 |
| A cryptic puzzle from medieval Dublin | O'Keeffe, Tadhg | Article in Journal | | 2017 |
| A house at the birth of modernity : Ightermurragh Castle in context | O'Keeffe, Tadhg,Quirke, Sinéad, | Article in Book | | 2009 |
| A new world man in an old world town : the identification of Sir Walter Raleigh’s residence in late sixteenth-century Youghal, Co. Cork, Ireland | Kelly, DavidO'Keeffe, Tadhg | Article in Journal | | 2019 |
| A stone shrine for a relic of St Thomas Becket in Dublin? | Duffy, PaulO'Keeffe, Tadhg | Article in Journal | | 2017 |
| A turreted enclosure at Pitchfordstown, County Kildare | Cullen, SeamusO'Keeffe, Tadhg | Article in Journal | | 1994 |
| Afterword | O'Keeffe, Tadhg | Article in Book | | 2005 |
| An early Anglo-Norman castle at Ballyderown, County Cork | O'Keeffe, Tadhg | Article in Journal | | 1984 |
| Archaeologies of a Medieval Irish Castle: Thinking about Trim | O'Keeffe, Tadhg | Article in Book | | 2018 |
| Architectural traditions of the early medieval church in Munster | O'Keeffe, Tadhg | Article in Book | | 1998 |
| Architecture and regular life in Holy Trinity cathedral, 1150-1350 | O'Keeffe, Tadhg | Article in Book | | 2000 |
| Aristocrats, immigrants and entrepreneurs : settlers and settlement initiatives in late 13th century Ireland | O'Keeffe, Tadhg | Article in Book | | 1998 |
| Augustinian Canons in twelfth- and thirteenth-century Ireland : history, architecture and identity | O'Keeffe, Tadhg | Article in Book | | 2011 |
| Ballyloughan, Ballymoon and Clonmore : three castles of c.1300 in County Carlow | O'Keeffe, Tadhg | Article in Journal | | 2000 |
| Barryscourt Castle and the Irish tower-house | O'Keeffe, Tadhg | Monograph or Collective Volume | Gandon editions for Barryscourt Trust | 1997 |
| Being-in-the-town, being-in-the-atlas : some reflections on capturing the experiences of town dwelling in the historic past | O'Keeffe, Tadhg | Article in Book | | 2013 |
| Bridgetown Priory : the Augustinian canons regular in medieval Ireland | O'Keeffe, Tadhg | Monograph or Collective Volume | Gandon | 1998 |
| Building a frontier? The architecture of the military orders in medieval Ireland | Grogan, PatO'Keeffe, Tadhg | Article in Book | | 2015 |
| Building lordship in thirteenth-century Ireland: the 'donjon' of Coonagh Castle, Co. Limerick | O'Keeffe, Tadhg | Article in Journal | | 2011 |
| Buttevant Friary and its crypt | O'Keeffe, Tadhg | Article in Journal | | 2012 |
| Cashel | O'Keeffe, Tadhg | Article in Book | | 1995 |
| Charitable constructions | Kelly, DavidO'Keeffe, Tadhg | Article in Journal | | 2018 |
| Churches 'in antis': Skeumorphism and Solomonic Iconography in Early Irish Architecture | O'Keeffe, Tadhg | Article in Journal | | 2023 |
| 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 |
| Comparative histories of land enclosure and tenant agriculture in south Munster from the late middle ages to the nineteenth century : two south Munster case-studies | O'Keeffe, TadhgRotman, DeborahWhelan, David | Article in Journal | | 2015 |
| Concepts of "castle" and the construction of identity in medieval and post-medieval Ireland | O'Keeffe, Tadhg | Article in Journal | | 2001 |
| Diarmait Mac Murchada and Romanesque Leinster : four twelfth-century churches in context | O'Keeffe, Tadhg | Article in Journal | | 1997 |
| Discovering Versailles in the smallness of my own experience | O'Keeffe, Tadhg | Article in Book | Wordwell | 2003 |
| Dublin Castle's donjon in context | O'Keeffe, Tadhg | Article in Book | | 2009 |
| Early Christian hermitage discovered on Omey island | O'Keeffe, Tadhg | Article in Journal | | 1992 |
| Ethnicity and moated settlement in medieval Ireland : a review of current thinking | O'Keeffe, Tadhg | Article in Journal | | 2002 |
| Fethard | O'Keeffe, Tadhg | Monograph or Collective Volume | Royal Irish Academy | 2003 |
| Fethard | O'Keeffe, Tadhg | Monograph or Collective Volume | Irish History Publications | 2006 |
| Fethard, Co. Tipperary : a guide to the medieval town | O'Keeffe, Tadhg | Monograph or Collective Volume | Fethard Historical Society | 1997 |
| From Carrickfergus to Carcassonne: the epic deeds of Hugh de Lacy during the Albigensian crusade | | Monograph or Collective Volume | Brepols | 2017 |
| Heritage, rhetoric, identity : critical reflections on the Carrickmines Castle controversy | O'Keeffe, Tadhg | Article in Book | | 2005 |
| Historiography, heritage, inheritance : Irish castellology and Leask's Irish castles | O'Keeffe, Tadhg | Article in Book | | 2006 |
| Invasion hypotheses | O'Keeffe, Tadhg | Article in Journal | | 2019 |
| Ireland and the Crusades | NA | Monograph or Collective Volume | Four Courts Press | 2022 |
| Ireland Encastellated, AD 950–1550:
Insular Castle-Building in its European context | O'Keeffe, Tadhg | Monograph or Collective Volume | Four Courts | 2021 |
| Ireland's oldest stone castle | Mac Cotter, PaulO'Keeffe, Tadhg | Article in Journal | | 2020 |
| Irish Romanesque architecture | O'Keeffe, Tadhg | Article in Book | | 1998 |
| Kanturk Castle: a renaissance mansion of the early seventeenth century | O'Keeffe, Tadhg | Article in Journal | | 2022 |
| Kilcolman castle, Co. Cork : a new interpretation of Edmund Spenser’s residence in plantation Munster | O'Keeffe, Tadhg | Article in Journal | | 2017 |
| King John (d. 1216) and the origins of colonial rule in Ireland | O'Keeffe, TadhgVeach, Colin T. | Article in Journal | | 2016 |
| KIng John (d. 1216), castle-builder | Liddiard, RobO'Keeffe, Tadhg | Article in Journal | | 2016 |
| La façade romane en Irlande | O'Keeffe, Tadhg | Article in Journal | | 1991 |
| Liscarroll Castle : a note on its context, function, and date | O'Keeffe, Tadhg | Article in Book | | 2013 |
| 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 |
| Lohort Castle: Medieval architecture, medievalist imagination | O'Keeffe, Tadhg | Article in Journal | | 2013 |
| Lordship and Colony, Anglo - Norman settlement in North Cork | O'Keeffe, Tadhg | Article in Journal | | 2004 |
| Medieval agriculture and settlement in Oughterard and Castlewarden. Co. Kildare | Hall, David, 1938-Hennessy, MarkO'Keeffe, Tadhg | Article in Journal | | 1985 |
| Medieval architecture and the village of Newcastle Lyons | O'Keeffe, Tadhg | Article in Book | | 1986 |
| Medieval architecture and the village of Newcastle Lyons | O'Keeffe, Tadhg | Article in Book | | 1986 |
| Medieval frontiers and fortification: the Pale and its evolution | O'Keeffe, Tadhg | Article in Book | Geography Publications | 1992 |
| Medieval Ireland : an archaeology | O'Keeffe, Tadhg | Monograph or Collective Volume | Tempus | 2000 |
| Medieval Irish architecture and the concept of the Romanesque : building traditions in eleventh- and twelfth- century Europe | O'Keeffe, Tadhg | Monograph or Collective Volume | Routledge | 2024 |
| Medieval Irish buildings, 1100-1600 | O'Keeffe, Tadhg | Monograph or Collective Volume | Four Courts | 2015 |
| Meelick Friary's hidden history | O'Keeffe, Tadhg | Article in Journal | | 2019 |
| Miscellanea. William Lawson's 'A New Orchard and Garden' (1618) and an early eighteenth-century depiction of Sir John Everard's mansion in Fethard, Co. Tipperary | O'Keeffe, Tadhg | Article in Journal | | 2011 |
| Omey and the sands of time | O'Keeffe, Tadhg | Article in Journal | | 1994 |
| Plantation-era great houses in Munster : a note on Sir Walter Raleigh's house and its context | O'Keeffe, Tadhg | Article in Book | | 2007 |
| Rathnageeragh and Ballyloo : a study of stone castles of probable 14th to early 15th century date in county Carlow | O'Keeffe, Tadhg | Article in Journal | | 1988 |
| Reconstructing Kilmainham : the topography and architecture of the chief priory of the Knights Hospitaller in Ireland, c.1170-1349 | O'Keeffe, Tadhg ; Virtuani, Paolo | Article in Journal | | 2020 |
| Representing the imagination : a topographical history of Dublin's Monto from Ordnance Survey maps and related materials | O'Keeffe, Tadhg,Ryan, Patrick | Article in Book | | 2011 |
| 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 |
| Rural settlement and cultural identity in Gaelic Ireland, 1000-1500 | O'Keeffe, Tadhg | Article in Book | | 1996 |
| Settlement and the frontier in Anglo-Norman Ireland : some reflections | O'Keeffe, Tadhg | Article in Journal | | 1995 |
| Space, place, habitus : geographies of practice in an Anglo-Norman landscape | O'Keeffe, Tadhg | Article in Book | | 2004 |
| The abbey and cathedral of Ferns, 1111-1253 | Bates, Rhiannon CareyO'Keeffe, Tadhg | Article in Book | | 2016 |
| The archaeology of Norman castles in Ireland. Part 1 : mottes and ringworks | O'Keeffe, Tadhg | Article in Journal | | 1990 |
| The archaeology of Norman castles in Ireland. Part 2 : stone castles | O'Keeffe, Tadhg | Article in Journal | | 1990 |
| The Architecture of the 'basilicae sanctorum' of Seventh-century Armach and Kildare | O'Keeffe, Tadhg | Article in Journal | | 2023 |
| The built environment of local community worship between the late eleventh and early thirteenth centuries | O'Keeffe, Tadhg | Article in Book | | 2006 |
| The Cathar heresy and Anglo-Norman Ireland | Duffy, PaulO'Keeffe, TadhgPicard, Jean-Michel | Article in Book | | 2017 |
| The chronology and formal affinities of the Ferns donjon, Co. Wexford | O'Keeffe, Tadhg | Article in Book | | 2003 |
| The church and castle of Confrey, Co. Kildare | O'Keeffe, Tadhg | Article in Journal | | 1985 |
| The construction of castles in Ireland : the evidence of the documentary record | O'Keeffe, Tadhg | Article in Journal | | 2022 |
| The design of the early thirteenth-century cathedral church of Newtown Trim, Co. Meath | O'Keeffe, Tadhg | Article in Journal | | 2018 |
| The fortifications of Western Ireland, AD 1100-1300, and their interpretation | O'Keeffe, Tadhg | Article in Journal | | 1998 |
| The Gaelic peoples and their archaeological identities, A.D. 1000-1650 | O'Keeffe, Tadhg | Monograph or Collective Volume | Department of Anglo-Saxon, Norse and Celtic, University of Cambridge | 2004 |
| The House of Ussher : histories and heritages of improvement, conspicuous consumption, and eviction on an early nineteenth-century Irish estate | O'Keeffe, TadhgWhelan, David A. | Article in Journal | | 2014 |
| The pre-Norman 'castle' in Connacht : a note on terminology | O'Keeffe, Tadhg | Article in Journal | | 2014 |
| 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 sequence of construction of Buttevant friary church in the thirteenth century | O'Keeffe, Tadhg | Article in Book | | 2013 |
| Tower houses of the Pale in east County Kildare | O'Keeffe, Tadhg | Article in Journal | | 1995 |
| Townscape as text : the topography of social interaction in Fethard, County Tipperary, AD 1300-1700 | O'Keeffe, Tadhg | Article in Journal | | 1999 |
| Trim before 1224 : new thoughts on the caput of de Lacy lordship in Ireland | O'Keeffe, Tadhg | Article in Book | | 2017 |
| Trim Castle uncovered: some thoughts | O'Keeffe, Tadhg | Article in Journal | | 2013 |
| Trim's first cousin: the twelfth-century donjon of Maynooth Castle | O'Keeffe, Tadhg | Article in Journal | | 2013 |
| Were there Designed Landscapes in Medieval Ireland? | O'Keeffe, Tadhg | Article in Journal | | 2004 |
| What did Tara mean to the Anglo-Normans? Reflections on the hill in the high Middle Ages | O'Keeffe, Tadhg | Article in Book | | 2013 |
| Wheels of words, networks of knowledge : romanesque scholarship and Cormac's Chapel | O'Keeffe, Tadhg | Article in Book | | 2006 |
| Youghal | Kelly, DavidO'Keeffe, Tadhg | Monograph or Collective Volume | Royal Irish Academy | 2015 |