| "Bithiúnaigh iad uilig" : sagairt agus easpaig i 1798 | Keogh, Dáire | Article in Book | NA | 1998 |
| "Tempering the rawness" : W. E. Hearn, Irish political economist and intellectual life in Australia | Boylan, Thomas A.Foley, Timothy P. (Tadhg) | Article in Book | University College Galway | 1989 |
| '...the air of a place of importance' : aspects of nineteenth-century Galway | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | Gill & Macmillan | 1984 |
| 'Early modern Ireland, 1534-1691' : a reassessment | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1980 |
| 'Writing Limerick' : historians and other chroniclers | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2009 |
| A history of Clare castle and its environs | Power, JosephÓ Tuathaigh, M. A. G. (Gearóid) | Monograph or Collective Volume | The author | 2004 |
| Aireacht Melbourne agus Éire, 1835-41 | Ó Tuathaigh, M. A. G. (Gearóid) | Thesis | | 1968 |
| An chléir Chaitleacach, an léann dúchais agus an cultúr in Éirinn, c. 1750-c. 1850 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 1986 |
| An gorta mór agus pholaitíocht | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1995 |
| An Gúm : comhthéacs a bhunaithe | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2020 |
| An Piarsach agus 1916 : briathar, beart agus oidhreacht | NA | Monograph or Collective Volume | Cló Iar-Chonnacht | 2016 |
| An Uachtarántacht : coinceap agus cleachtas | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2003 |
| Cáil an Phiarsaigh i ndiaidh a bháis: beathaisnéisí agus breithiúnais | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2016 |
| Commemoration, public history and the professional historian : an Irish perspective | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2014 |
| Cultural visions and the new state : embedding and embalming | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2003 |
| Cumann Lúthchleas Gael agus Éirí Amach 1916 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2017 |
| De Valera and Sovereignty : a note on the pedigree of a political idea | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1983 |
| Douglas Hyde and the development of modern Irish nationalism | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 1993 |
| Éirí amach 1798 in Éireann | | Monograph or Collective Volume | Raidió na Gaeltachta i gcomhar le Cló Iar-Chonnachta | 1998 |
| Emigration and exile | Curtin, ChrisO'Dwyer, RianaÓ Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1988 |
| Exemplar, Outlier, Impostor? A Reflection on Ireland and the Discourses of Colonialism | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2014 |
| Foreword|Réamhrá | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2016 |
| From United Kingdom to divided island : aspects of the Irish experience, 1850-1922 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1988 |
| Gaelic Ireland, popular politics and Daniel O'Connell | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1975 |
| Galway in the modern period : survival and revival | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1995 |
| Galway's revolutionary decade : a review essay | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2018 |
| Gearóid MacNiocaill | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2002 |
| I mbéal an bháis : the Great Irish Famine and the language shift in nineteenth-century Ireland | Ó Tuathaigh, M. A. G. (Gearóid) | Monograph or Collective Volume | Quinnipiac University Press | 2015 |
| Introduction | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1989 |
| Ireland 1880–2016: negotiating sovereignty and freedom | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2018 |
| Ireland and Britain under the union, 1800-1921 : an overview | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1986 |
| Ireland and continental Europe : the historical dimension | Mac Niocaill, GearóidÓ Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1984 |
| Ireland before the famine, 1798-1848 | Ó Tuathaigh, M. A. G. (Gearóid) | Monograph or Collective Volume | Gill & Macmillan | 1972 |
| Ireland under the Union : historiographical reflections | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2002 |
| Ireland's land questions | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2016 |
| Ireland's land questions : a historical perspective | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1999 |
| Ireland, 1800-1921 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1981 |
| Irish historical "revisionism" : state of the art or ideological project? | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1994 |
| Irish land questions in the state of the Union | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2013 |
| Irish studies : a general introduction | | Monograph or Collective Volume | Gill & Macmillan | 1988 |
| Language, ideology and national identity | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2005 |
| Languages and identities | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2016 |
| Leabhair na mBairéadach : Léas ar an Athbheochain | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2017 |
| Leadership and Independent Ireland's performance since 1922 : a historiographical perspective on Lee's assessment | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2024 |
| Life on the land | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1998 |
| Maigh Nuad agus stair na Gaeilge | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1995 |
| Máirtín Ó Cadhain, an stair agus an pholaitíocht : athmhachnamh | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2007 |
| Michael Davitt agus Conradh na Talún | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1979 |
| Nationalist Ireland, 1912-1922 : aspects of continuity and change | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 1994 |
| Nineteenth century Irish politics the case for normalcy | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1975 |
| Pobal na Gaeltachta : a scéal agus a dhán | | Monograph or Collective Volume | Cló Iar-Chonnachta | 2000 |
| Political history | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2005 |
| Professor Gearoid MacNiocaill, 1932-2004 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2004 |
| Reassessing Paul Cullen : an afterword | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2011 |
| Religion, nationalism and political economy in the early twentieth century | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2009 |
| Review article. Once upon a time in the West | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 2008 |
| Seán Mac hÉil, ardeaspag agus conspóidí : athbhreithniú | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1983 |
| The age of De Valera | | Monograph or Collective Volume | Ward River Press | 1982 |
| The Catholic Church and religious culture in nineteenth-century Mayo | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2014 |
| The distressed society; the struggle for emancipation and independence, 1801-1918 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1977 |
| The establishment of the Queen's Colleges : ideological and political background | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1999 |
| The famine : further thoughts | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1974 |
| The folk-hero and tradition | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1980 |
| The GAA as a force in Irish society : an overview | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2009 |
| The great famine and social change in Ireland | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1995 |
| The historical pattern of Irish emigration : some labour aspects | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1991 |
| The Historiography of the Irish Revolution | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2017 |
| The Irish in nineteenth century Britain | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1985 |
| The Irish in nineteenth-century Britain : problems of integration | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1981 |
| The Irish nation-state in the constitution | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1988 |
| The Irish revolutionary decade, 1913–1923; voice, narratives and contexts | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2018 |
| The Irish-Australian connection = An caidreamh Gael-Astrálach Proceedings of the Irish-Australian Bicentenary Conference, University College Galway (January 1988) | | Monograph or Collective Volume | University College Galway | 1989 |
| The Irish-Ireland idea : rationale and relevance | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1991 |
| The land question, politics and Irish society, 1922-60 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1982 |
| The massacre at Dun an Óir, 1580 | Ó Tuathaigh, M. A. G. (Gearóid) | Monograph or Collective Volume | Cló Dhuibhne | 1980 |
| The media and Irish culture | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1984 |
| The National University of Ireland, 1908-2008 : centenary essays | | Monograph or Collective Volume | University College Dublin Press, on behalf of the National University of Ireland | 2008 |
| The position of the Irish language | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | NA | 2008 |
| The regional dimension | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1986 |
| The republican idea : into the twenty first century | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2003 |
| The role of women in Ireland under the new English order | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 1978 |
| The state and the Irish language : an historical perspective | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2008 |
| The state, sentiment & the politics of language | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Book | | 2002 |
| Thomas Drummond and the government of Ireland, 1835-41 | Ó Tuathaigh, M. A. G. (Gearóid) | Monograph or Collective Volume | National University of Ireland | 1978 |
| Words spoken at the grave of Jim Kemmy, Mount Saint Lawrence cemetery, Limerick, 29th September 1997 | Ó Tuathaigh, M. A. G. (Gearóid) | Article in Journal | | 1998 |