| 'Near unto the Bawne' | O'Neill, John | Article in Journal | | 2002 |
| A glimpse of Wicklow's past | O'Neill, John | Article in Journal | | 2001 |
| A Late Bronze Age horn hoard from Eagry, Co. Antrim | Ó Néill, John | Article in Journal | | 2020 |
| A lost lunula from Moytirra East, County Sligo | Ó Néíll, John | Article in Journal | | 2023 |
| A medieval ring brooch and other nineteenth-century discoveries at High Street, Belfast | Ó Néill, John | Article in Journal | | 2006 |
| A Norse settlement in rural Co. Dublin | O'Neill, John | Article in Journal | | 1999 |
| A recently discovered Wedgetomb in Shankill townland, Co. Dublin | O'Neill, John | Article in Journal | | 1999 |
| A summary of investigations by the Lisheen archaeological project | O'Neill, John | Article in Journal | | 2000 |
| A tortuous tale - a new twist on the torcs from 'Tara' | Cahill, MaryO'Neill, John | Article in Journal | | 2021 |
| An enclosed early medieval cemetery at Cherrywood, Co. Dublin | Coughlan, JennieÓ Néill, John | Article in Book | | 2010 |
| An Irish historical tract dated A.D. 721 | MacNeill, John | Article in Journal | | 1910 |
| Archbishop Leahy at the first Vatican Council | O'Neill, John | Article in Journal | | 1963 |
| De Courcy's Castle : New Insights into the First Phase of Anglo-Norman Building Activity at Carrickfergus Castle, County Antrim | Donnelly, Colm J.McCooey, PaulMcNeill, T. E.Ó Néill, John | Article in Journal | | 2005 |
| Early Irish population groups : their nomenclature, classification and chronology | Mac Neill, John | Article in Journal | | 1911 |
| Excavation of pre-Norman structures on the site of an enclosed early Christian cemetery at Cherrywood, County Dublin | O'Neill, John | Article in Book | | 2006 |
| Excavations at Longford Street Little, Dublin : an archaeological approach to Dubh Linn | O'Neill, John | Article in Book | | 2004 |
| Investigation of the find-spot of the Tamlaght hoard, Co. Armagh | Macdonald, PhilipO'Neill, John | Article in Book | | 2009 |
| Ireland's participation in United Nations peacekeeping : a military perspective | O'Neill, John | Article in Book | | 2005 |
| Lapidibus in igne calefactis coquebatur : the historical burnt mound 'tradition' | Ó Néill, John | Article in Journal | | 2003 |
| Lieutenant-General Alexander Campbell’s Loughnashade horn | Ó Néill, John | Article in Journal | | 2013 |
| New discoveries at Lisheen | O'Neill, JohnStevens, Paul | Article in Journal | | 1998 |
| Nicholas Bagnall's castle at Newry, county Down | O'Neill, John | Article in Journal | | 2002 |
| Notes on the Laud genealogies | Mac Neill, John | Article in Journal | | 1912 |
| Reconsidering early medieval seascapes : new insights from Inis Aire, Co. Galway, Ireland | Gibbons, MichaelGoodale, NathanHiggins, JimKuijt, IanLash, RyanO'Neill, John | Article in Journal | | 2010 |
| Reconstructing the Carrickfergus tankard | O'Neill, John | Article in Journal | | 2002 |
| Something 'borrowed' and something 'blew' - Mary Ann McCracken on Loughnashade. The antiquarian interests of a well-known social reformer | Ó Néill, John | Article in Journal | | 2022 |
| Thatched House, Kilmuckridge, Co. Wexford | Breen, ClaireO'Neill, John | Article in Journal | | 2015 |
| The agent provocateur in Ireland | MacNeill, John Gordon Swift | Article in Journal | | 1918 |
| The archaeological and palaeoecological investigation of a middle Bronze Age settlement at Ballyarnet Lake, County Derry | Plunkett, GillWhitehouse, NickiÓ Néill, John | Article in Journal | | 2007 |
| The Coats of Arms at the Bishop's Palace Raphoe, Co. Donegal | Neill, JohnOllardale, Ian Rice | Article in Journal | | 2006 |
| The Irish in America : why did thousands emigrate to America? | O'Neill, John | Article in Journal | | 1955 |
| Timber castles and towers in sixteenth-century Ireland : some evidence from Ulster | Donnelly, Colm J.Logue, PaulO'Neill, JimO'Neill, John | Article in Journal | | 2007 |