| A Charles J. Kickham correspondence | Ó Broin, León, 1902-1990 | Article in Journal | | 1974 |
| An Maidíneach staraí na hÉireannach aontaithe | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Sáirseal agus Dill | 1971 |
| Birrell, Nathan, and the men of Dublin Castle | Ó Broin, León, 1902-1990 | Article in Book | | 1967 |
| Charles Gavan Duffy, patriot and statesman : the story of Charles Gavan Duffy (1816-1903) | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | J. Duffy | 1967 |
| Comhcheilg sa Chaisleán | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Sáirseal agus Dill | 1963 |
| Cúlra réabhlóideach W.B. Yeats | Ó Broin, León, 1902-1990 | Article in Journal | | 1977 |
| Dr R. R. Madden : historian and public servant | Ó Broin, León, 1902-1990 | Article in Journal | | 1958 |
| Dublin Castle and the 1916 rising : the story of Sir Matthew Nathan | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Helicon | 1966 |
| Emmet | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Sáirseal agus Dill | 1954 |
| Fanny Jennings, duchess of Tyrconnell | Ó Broin, León, 1902-1990 | Article in Journal | | 1962 |
| Fenian fever : an Anglo-American dilemma | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Chatto and Windus | 1971 |
| Field Marshal Lord Strathnairn (1801-1885) | Ó Broin, León, 1902-1990 | Article in Journal | | 2006 |
| Frank Duff | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1982 |
| Frank Duff : a biography | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1983 |
| In great haste : the letters of Michael Collins and Kitty Kiernan | Collins, Michael, 1890-1922Ó Broin, León, 1902-1990Ó hEigeartaigh, Cian | Monograph or Collective Volume | Gill & Macmillan | 1996 |
| In great haste : the letters of Michael Collins and Kitty Kiernan | Collins, Michael, 1890-1922Kiernan, KittyÓ Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1983 |
| In great haste : the letters of Michael Collins and Kitty Kiernan | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1996 |
| Joseph Brennan, civil servant extraordinary | Ó Broin, León, 1902-1990 | Article in Journal | | 1977 |
| Just like yesterday : an autobiography | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1986 |
| Maurice Moore and the National Volunteers | Ó Broin, León, 1902-1990 | Article in Journal | | 1979 |
| Michael Collins | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1980 |
| Miss Crookshank agus coirp eile | Ó Broin, Leon (1902–1990) | Monograph or Collective Volume | Sáirséal agus Dill | 1951 |
| No man's man : a biographical memoir of Joseph Brennan - civil servant & first governor of the Central Bank | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | | 1982 |
| Pádraic Ó Conaire | Ó Broin, León | Article in Journal | | 1934 |
| Parnell. Beathaisnéis | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Oifig an tSoláthair | 1937 |
| Protestant nationalists in revolutionary Ireland : the Stopford connection | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1985 |
| R. R. Madden - doctor, historian and public servant | Ó Broin, León, 1902-1990 | Article in Journal | | 1958 |
| R.R. Madden, historian of the United Irishmen | Ó Broin, León, 1902-1990 | Article in Journal | | 1972 |
| Revolutionary nationalism in Ireland : the I.R.B, 1858-1924 | Ó Broin, León, 1902-1990 | Article in Book | | 1978 |
| Revolutionary underground : the story of the Irish Republican Brotherhood 1858-1924 | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1976 |
| Select documents XXXII. The I.R.B. supreme council 1868-78 | | Article in Journal | | 1975 |
| The chief secretary : Augustine Birrell in Ireland | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Chatto and Windus | 1969 |
| The Fenian brotherhood | Ó Broin, León, 1902-1990 | Article in Book | | 1980 |
| The Gaelic League and the chair of Irish at Maynooth | Ó Broin, León, 1902-1990 | Article in Journal | | 1963 |
| The Invincibles | Ó Broin, León, 1902-1990 | Article in Book | | 1973 |
| The life story of an old rebel | Denvir, JohnÓ Broin, León, 1902-1990 | Monograph or Collective Volume | Irish University Press | 1973 |
| The Phoenix conspiracy (contd.) | Ó Broin, León, 1902-1990 | Article in Journal | | 1980 |
| The prime informer : a suppressed scandal | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Sidgwick & Jackson | 1971 |
| The trial and imprisonment of O'Connell, 1843 | Ó Broin, León, 1902-1990 | Article in Journal | | 1973 |
| The unfortunate Mr. Robert Emmet | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Clonmore & Reynolds | 1958 |
| W. E. Wylie and the Irish revolution 1916-1921 | Ó Broin, León, 1902-1990 | Monograph or Collective Volume | Gill & Macmillan | 1989 |