| A catalogue and atlas of the caddisflies (trichoptera) of Ireland | O'Connor, James P. | Monograph or Collective Volume | The Irish Biogeographical Society | 2015 |
| Galway and the First World War | Murphy-O'Connor, James | Thesis | | 2008 |
| Grangegorman : an urban quarter with an open future | | Monograph or Collective Volume | Gandon Editions | 2014 |
| History of Ireland, 1798-1924. 2 vols. | O'Connor, James, Sir | Monograph or Collective Volume | | 1925 |
| History of Ireland, 1798-1924. 2 vols. | O'Connor, James, Sir | Monograph or Collective Volume | | 1925 |
| Insects and entomology | O'Connor, James P. | Article in Book | | 1997 |
| Irish Astronomical Society : a history, 1937-2006 | O'Connor, James | Monograph or Collective Volume | James O'Connor | 2006 |
| Looking back | O'Connor, James P. | Article in Book | | 2001 |
| Natural history collections | O'Connor, James P. | Article in Book | | 2009 |
| When crowbar & bayonet ruled : the Land War on the Belcarra estate of Harriet Gardiner & Susanna Pringle, 1879-1910 | O'Connor, James R.O'Connor, Michael M. | Monograph or Collective Volume | Original Writing | 2013 |