| German literature and the 'Dublin University Magazine', 1833-50 | O'Neill, Patrick | Article in Journal | | 1977 |
| Ireland and Germany : a study in literary relations | O'Neill, Patrick | Monograph or Collective Volume | Lang | 1985 |
| Ireland and Germany : a survey of literary and cultural relations before 1700 | O'Neill, Patrick | Article in Journal | | 1982 |
| Ireland and Germany : a survey of literary and cultural relations before 1700, part 1 | O'Neill, Patrick | Article in Journal | | 1982 |
| Ireland and Germany : a survey of literary and cultural relations before 1700, part II | O'Neill, Patrick | Article in Journal | | 1982 |
| Irish cultural influence on Northumbria : the first thirty years, A.D. | O'Neill, Patrick | Article in Book | | 1991 |
| Limerick Holy Year exhibition : souvenir catalogue | O'Neill, Patrick | Monograph or Collective Volume | Limerick Leader | 1950 |
| Patrick O'Neill's Manuscripts
A selection of Irish Harp from the music manuscripts of Patrick O'Neill (1765-1832)
Arranged by Kathleen Loughnane | O'Neill, Patrick, 1765-1832 | Monograph or Collective Volume | Reiskmore Music | 2016 |
| Peadar Ó Dubhda : 'the forgotten man' | O'Neill, Patrick | Monograph or Collective Volume | Eigse Oirialla | 1981 |
| The famous Jim Byrne of Wexford, Carlow born, all-Ireland winning captain | O'Neill, Patrick | Article in Journal | | 2008 |
| The Irish role in the origins of the Old English alphabet : a re-assessment | O'Neill, Patrick P. | Article in Journal | | 2009 |
| The Irish role in the origins of the Old English alphabet : a reassessment | O'Neill, Patrick P. | Article in Book | | 2009 |