| All Ireland is in and about Rathkeale | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1996 |
| All worlds possible : the domain of the Millers of Coolybrown | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1993 |
| An eighteenth century plan of Newcastle | O'Connor, Patrick J. | Article in Journal | | 1981 |
| Emigration and famine : the evidence of Francis Spaight, July 1847 | O'Connor, Patrick J. | Article in Journal | | 1995 |
| Exploring Limerick's past : an historical geography of urban development in county and city | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1987 |
| Glin maps | O'Connor, Patrick J. | Article in Book | | 2009 |
| Hometown : a portrait of Newcastle West, Co. Limerick | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1998 |
| Living in a coded land | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1992 |
| Medieval regionalism in north county Kerry : a region anatomised | O'Connor, Patrick J. | Article in Journal | | 1991 |
| People make places : the story of the Irish palatines | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1989 |
| Remembering Mainchin Seoighe | O'Connor, Patrick J. | Article in Journal | | 2006 |
| So long to Coolanoran | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 2011 |
| Some guides to the Irish scene | O'Connor, Patrick J. | Monograph or Collective Volume | Oireacht na Mumhan Books | 1992 |
| The maturation of town and village life in county Limerick, 1700-1900 | O'Connor, Patrick J. | Article in Book | | 1988 |
| The promotion of a Limerick linen industry : 1760-1763 | O'Connor, Patrick J. | Article in Journal | | 1989 |