| 'I have nothing but through her' : women and the conquest of Ireland, 1170-1240 | Smith, Brendan, 1963- | Article in Book | | 2003 |
| A county community in early fourteenth-century Ireland : the case of Louth | Smith, Brendan, 1963- | Article in Journal | | 1993 |
| Before reform and revival : English government in late medieval Ireland | Smith, Brendan, 1963- | Article in Book | | 2016 |
| Britain and Ireland 900-1300 : Insular responses to medieval European change | | Monograph or Collective Volume | Cambridge University Press | 1999 |
| British history : an Irish perspective | Smith, Brendan, 1963- | Article in Journal | | 1992 |
| Calendar of documents relating to medieval Ireland in the series of ancient deeds in the National Archives of the United Kingdom | | Article in Journal | | 2006 |
| Church and community on the medieval Irish frontier : county Louth, 1170-1346 | Smith, Brendan, 1963- | Article in Journal | | 1990 |
| Colonial society in Co. Louth, 1150-1450 | Smith, Brendan, 1963- | Article in Book | | 2023 |
| Colonisation and conquest in medieval Ireland : The English in Louth, 1170-1330 | Smith, Brendan, 1963- | Monograph or Collective Volume | Cambridge University Press | 1999 |
| Crisis and survival in late medieval Ireland : the English of Louth and their neighbours, 1330-1450 | Smith, Brendan, 1963- | Monograph or Collective Volume | Oxford University Press | 2013 |
| Disaster and opportunity: 1320–1450 | Smith, Brendan, 1963- | Article in Book | | 2018 |
| Dressing the part in the Plantagenet Empire : The death of Roger Mortimer, Earl of March and Ulster, in 1398 | Smith, Brendan, 1963- | Article in Book | | 2016 |
| Geraldine lordship in thirteenth-century Ireland | Smith, Brendan, 1963- | Article in Book | | 2016 |
| Handbook and select calendar of sources for medieval Ireland in the National Archives in the United Kingdom | | Monograph or Collective Volume | Four Courts | 2005 |
| Inquisitions and extents of medieval Ireland | | Monograph or Collective Volume | List & Index Society | 2007 |
| Introduction | Smith, Brendan, 1963- | Article in Book | | 2009 |
| Ireland and the English world in the late Middle Ages : essays in honour of Robin Frame | | Monograph or Collective Volume | Palgrave Macmillan | 2009 |
| Irish politics, 1220-1245 | Smith, Brendan, 1963- | Article in Book | | 2001 |
| Keeping the peace | Smith, Brendan, 1963- | Article in Book | | 1997 |
| Late medieval Ireland and the English connection : Waterford and Bristol, ca. 1360–1460 | Smith, Brendan, 1963- | Article in Journal | | 2011 |
| Lionel of Clarence and the English of Meath | Smith, Brendan, 1963- | Article in Journal | | 1996 |
| Lords and lordship in the British Isles in the late Middle Ages | Davies, Robert Rees, Sir, 1938-2005 | Monograph or Collective Volume | Oxford University Press | 2009 |
| Lordship in the British Isles, c.1320-c.1360 : the ebb-tide of the English empire? | Smith, Brendan, 1963- | Article in Book | | 2007 |
| Medicine in medieval Ireland | Smith, Brendan, 1963- | Article in Journal | | 1987 |
| Tenure and locality in north Leinster in the early thirteenth century | Smith, Brendan, 1963- | Article in Book | | 1995 |
| The adventures of Milo Sweteman, archbishop of Armagh 1361-1380 | Smith, Brendan, 1963- | Article in Journal | | 1996 |
| The Armagh-Clogher dispute and the "Mellifont conspiracy" : diocesan politics and monastic reform in early thirteenth-century Ireland | Smith, Brendan, 1963- | Article in Journal | | 1991 |
| The British Isles in the Late Middle Ages : shaping the regions | Smith, Brendan, 1963- | Article in Book | | 2009 |
| The Bruce invasion and County Louth, 1315-1318 | Smith, Brendan, 1963- | Article in Journal | | 1989 |
| The Cambridge History of Ireland: Volume I. 600–1550 | | Monograph or Collective Volume | Cambridge University Press | 2018 |
| The concept of the march in medieval Ireland : the case of Uriel | Smith, Brendan, 1963- | Article in Journal | | 1988 |
| The conquest of Ireland | Smith, Brendan, 1963- | Article in Book | | 1997 |
| The conquest of Ireland | Smith, Brendan, 1963- | Article in Book | | 2000 |
| The de Pitchford family in thirteenth-century Ireland | Smith, Brendan, 1963- | Article in Journal | | 1993 |
| The English in Uriel, 1170-1330 | Smith, Brendan, 1963- | Thesis | | 1990 |
| The frontiers of church reform in the British Isles, 1170-1230 | Smith, Brendan, 1963- | Article in Book | | 2002 |
| The Irish receipt roll of 1301-2 : data science and medieval exchequer practice | Smith, Brendan, 1963- ; Jones, Mike | Article in Journal | | 2022 |
| The late medieval diocese of Clogher, c.1200-1480 | Smith, Brendan, 1963- | Article in Book | | 2005 |
| The medieval border : Anglo-Irish and Gaelic Irish in late thirteenth and early fourteenth-century Uriel | Smith, Brendan, 1963- | Article in Book | | 1989 |
| The murder of John Dowdall, sheriff of Louth, 1402 | Smith, Brendan, 1963- | Article in Book | | 2013 |
| The murder of Richard Gernon, sheriff of Louth, 1311 | Smith, Brendan, 1963- | Article in Journal | | 1988 |
| The register of Milo Sweteman, Archbishop of Armagh, 1361-1380 | | Monograph or Collective Volume | Irish Manuscripts Commission | 1996 |
| The register of Nicholas Fleming : Archbishop of Armagh, 1404-1416 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2003 |
| The register of Nicholas Fleming, Archbishop of Armagh 1404-1416 | Fleming, Nicholas | Monograph or Collective Volume | Irish Manuscripts Commission | 2003 |