| Ag smaoineamh ar an gCairdinéal | Ó Dufaigh, Seosamh | Article in Journal | | 1992 |
| An Cairdinéal Tomás Ó Fiaich agus comhthéacs an chreidimh in Éirinn | Ó Maolfabhail, Donncha | Article in Journal | | 1992 |
| Cardinal Tomás Ó Fiaich and the GAA : an appreciation | Hegarty, Roddy | Article in Book | | 2009 |
| Diolaim beag cuinahne ar an Chairdinéal Ó Fiaich agus and Réalt | Ní Thuama, Máire | Article in Journal | | 1992 |
| Father Tom : an authorised portrait of Cardinal Tomás Ó Fiaich | Fitzgerald, B. | Monograph or Collective Volume | Fount | 1990 |
| Genealogy : 'Annie's son' : Ann Carragher mother of Thomas James Fee : Tomás Ó Fiaich, archbishop of Armagh, created cardinal 30 June 1979 | Caraher Family History Society | Monograph or Collective Volume | Caraher Family History Society | 1991 |
| Hindsights : ten meetings of minds | Ó Murchú, Liam P. | Monograph or Collective Volume | Gill & Macmillan | 2000 |
| No words can tell our sorrow. A tribute to the late Cardinal Ó Fiaich | Kearns, Patrick | Article in Journal | | 1990 |
| Notes and documents. Cardinal Tomás Ó Fiaich, Ireland and Europe | Brady, Seán | Article in Journal | | 2017 |
| The British Government and the appointment of Tomás Ó Fiaich as Archbishop of Armagh | Rafferty, Oliver P. | Article in Journal | | 2014 |
| The cardinal Tomás Ó Fiaich memorial library and archive | Ó Doibhlin, Crónán | Article in Journal | | 2001 |
| The Gaelic manuscripts in the Ó Fiaich Library/Archive | Ó Muirí, Réamonn | Article in Journal | | 2011 |
| The purpose of Cardinal Ó Fiaich | Faul, Denis | Article in Journal | | 1991 |
| Tomás Ó Fiaich | Ó Glaisne, Risteárd, 1927-2003 | Article in Journal | | 1992 |
| Tomás Ó Fiaich | Ó Glaisne, Risteárd, 1927-2003 | Monograph or Collective Volume | Coiscéim | 1990 |
| Tomás Ó Fiaich - saol agus saothar i Maigh Nuad | Ó Doibhlin, Diarmaid | Article in Book | | 1995 |
| Tomás Ó Fiaich as scholar, teacher, mentor and friend | Ó Muraile, Nollaig | Article in Journal | | 2017 |
| Tomás Ó Fiaich's letters from Louvain : letters, 1950-1952, from Tomás Ó Fiaich, St Anthony's College, Louvain, to his father, Patrick Fee, Anamar | McMahon, KevinÓ Fiaich, Tomás | Monograph or Collective Volume | Cullyhanna Community Enterprises | 1994 |
| Tomás Ó Fiaich, scoláire | Ó Dufaigh, Seosamh | Article in Journal | | 1978 |