| 'From skill to skill' : evidence for medieval brewing at Balbriggan, Co Dublin | Cobain, SarahDuffy, PaulKavanagh, Helen | Article in Journal | | 2013 |
| 'Ung sage et valent home': Hugh de Lacy and the Albigensian Crusade | Duffy, Paul | Article in Journal | | 2011 |
| A numismatic 'Pot-Pourri' from Galway | Duffy, Paul | Article in Journal | | 2006 |
| A stone shrine for a relic of St Thomas Becket in Dublin? | Duffy, PaulO'Keeffe, Tadhg | Article in Journal | | 2017 |
| An extract from Strafford's inquisition : Galway corporation property, in 1637 | | Article in Journal | | 1997 |
| An introduction to the engineering heritage of Tuam | Duffy, Paul | Article in Book | | 2014 |
| Ardnacrusha - birthplace of the E.S.B. | Duffy, Paul | Article in Journal | | 1987 |
| Balgriffin cross | Duffy, Paul | Article in Journal | | 2018 |
| Curtailing Kings: Ireland, the Cathar Crusade and the cult of Simon de Montfort | Duffy, Paul | Article in Book | | 2022 |
| Engineering | Duffy, Paul | Article in Book | | 1999 |
| Flint scathers and burnt mounds : results from an archaeological watching brief on Island Magee, county Antrim in 1995 and 1996, Scotland to Northern Ireland gas pipeline | Duffy, PaulOthers | Article in Journal | | 2000 |
| From Carcassonne to Carickfergus : the legacy of de Lacy's crusade experience in Britain and Ireland | Duffy, Paul | Article in Book | | 2017 |
| From Carrickfergus to Carcassonne: Hugh de Lacy and the Albigensian Crusade | Brown, Daniel J. F.Duffy, Paul | Article in Book | | 2017 |
| From Carrickfergus to Carcassonne: the epic deeds of Hugh de Lacy during the Albigensian crusade | | Monograph or Collective Volume | Brepols | 2017 |
| From the bottom up? Grassroots, tree roots and community in the 'Town of the Dark Stranger' | Duffy, Paul | Article in Journal | | 2014 |
| Galway : history on a postcard | Duffy, Paul | Monograph or Collective Volume | Currach Press | 2013 |
| Galway city : snapshots through time | Duffy, Paul | Monograph or Collective Volume | Currach Press | 2014 |
| Galway's infrastructure in 1916|Cúrsaí bonneagair i nGaillimh sa bhliain 1916 | Duffy, Paul | Article in Book | | 2016 |
| Grassroots archaeology : an experiment in monument resurrection and suburban identity in north Dublin | Duffy, Paul | Article in Journal | | 2014 |
| Ireland and the Crusades | NA | Monograph or Collective Volume | Four Courts Press | 2022 |
| Knots and crosses - the Irish cult of St Olave | Duffy, Paul | Article in Journal | | 2019 |
| New insights into the church known as St Crispin's Cell and the site of Rathdown Castle, Co. Wicklow | Burbridge, MarieCoyne, FrankDuffy, PaulHarrington, JohnLove, ColinMogensen, Ejvind | Article in Journal | | 2017 |
| Old mill boards and sea-green slates : milling tradition in the Ballylee area of south Galway | Duffy, Paul | Article in Journal | | 1992 |
| Rishworth, McLaughlin and the Shannon Scheme | Duffy, Paul | Article in Journal | | 2017 |
| Saints and skinners: excavations along the northern precinct of the abbey of Saint Thomas the Martyr, Dublin | Duffy, Paul | Article in Book | | 2020 |
| Some Limerick peruke-makers | Duffy, Paul | Article in Journal | | 1994 |
| Structures of import: St Peter’s church, a unique sunken-floored structure and Dublin’s southern suburb | Duffy, Paul | Article in Book | | 2023 |
| Studdert’s bridge, Bunratty, Co. Clare | Duffy, PaulRynne, Etienne | Article in Journal | | 1996 |
| The 'cemetery gate' and outer precinct of St Mary's abbey, Dublin | Duffy, Paul | Article in Book | | 2025 |
| The absence of body-snatching in Limerick's history | Duffy, Paul | Article in Journal | | 1992 |
| The architecture of defiance...political motivation in castle design | Duffy, Paul | Article in Journal | | 2015 |
| The Cathar heresy and Anglo-Norman Ireland | Duffy, PaulO'Keeffe, TadhgPicard, Jean-Michel | Article in Book | | 2017 |
| The church of Bearach, the grange of Baldoyle and the town of the dark stranger | Duffy, Paul | Article in Book | | 2016 |
| The exiled earl and soon-to-be-saint. Hugo de Lacy and the Albigensian Crusade | Duffy, Paul | Article in Journal | | 2016 |
| The last coins struck at the Limerick mint | Duffy, Paul | Article in Journal | | 1980 |
| The Limerick Mont de Piété - a further note | Duffy, Paul | Article in Journal | | 1995 |
| The Stein Brown and Company distillery tokens | Duffy, Paul | Article in Journal | | 1985 |
| Turf, steam and the Stein Browne distillery chimney | Duffy, Paul | Article in Journal | | 1994 |
| Under the Hawthorn Tree | Duffy, Paul | Article in Journal | | 2018 |