| A baluster-headed ringed pin from Richmond, Nenagh | O'Brien, Richard | Article in Journal | | 2009 |
| A preliminary note on the archaeological site of Woodtown 6, Co. Waterford | O'Brien, Richard | Article in Journal | | 2005 |
| Cashel Antiquities rediscovered - standing stones | O'Brien, Richard | Article in Journal | | 2006 |
| Dublin Castle and the Irish people | O'Brien, Richard Barry | Monograph or Collective Volume | Gill | 1909 |
| Five times arraigned for treason | O'Brien, Richard Barry | Article in Journal | | 1903 |
| Ireland in the general elections (1826-1911) | O'Brien, Richard Barry | Article in Journal | | 1911 |
| New archaeological finds at Killea graveyard | O'Brien, Richard | Article in Journal | | 2000 |
| The archaeological excavations on the N7 Nenagh bypass 1998-1999 | O'Brien, Richard | Article in Journal | | 2001 |
| The Benedictine priory of Kilcommon | O'Brien, Richard | Article in Journal | | 2003 |