| "Ireland corporate of itself". The parliament of 1460 | Lydon, James F. | Article in Journal | | 1995 |
| "The king's friend" : O'Neill, the crown and the earldom of Ulster | Simms, Katharine | Article in Book | Irish Academic Press | 1981 |
| 'Ireland corporate of itself' : the parliament of 1460 | Lydon, James F. | Article in Journal | | 1995 |
| A fifteenth-century building account from Dublin | Lydon, James F. | Article in Journal | | 1982 |
| A land of war | Lydon, James F. | Article in Book | | 1987 |
| A survey of the memoranda rolls of the Irish Exchequer, 1294-1509 | Lydon, James F. | Article in Journal | | 1966 |
| Account roll of the Priory of the Holy Trinity, Dublin 1337-1346 | | Monograph or Collective Volume | Four Courts | 1996 |
| An Irish army in Scotland, 1296 | Lydon, James F. | Article in Journal | | 1961 |
| Christ Church in the later medieval Irish world, 1300-1500 | Lydon, James F. | Article in Book | | 2000 |
| Colony and frontier in medieval Ireland : essays presented to J.F. Lydon | | Monograph or Collective Volume | Hambledon | 1995 |
| Dublin and the Scottish threat, 1315-18 | Lydon, James F. | Article in Book | | 2016 |
| Dublin Castle in the middle ages | Lydon, James F. | Article in Book | | 2002 |
| Dublin in transition : from Ostman town to English borough | Lydon, James F. | Article in Book | | 2001 |
| Edward I, Ireland and the war in Scotland, 1303-1304 | Lydon, James F. | Article in Book | | 1981 |
| England and Ireland in the later middle ages : essays in honour of Jocelyn Otway-Ruthven | | Monograph or Collective Volume | Irish Academic Press | 1981 |
| Government, War and Society in Medieval Ireland: Essays by Edmund Curtis, A.J. Otway-Ruthven and James Lydon | Curtis, Edmund, 1881-1943Lydon, James F.Otway-Ruthven, Annette Jocelyn, 1909-1989 | Monograph or Collective Volume | Four Courts Press | 2008 |
| Historical revisit : Edmund Curtis, A history of medieval Ireland (1923, 1938) | Lydon, James F. | Article in Journal | | 1999 |
| Ireland : politics, government and law | Lydon, James F. | Article in Book | | 2003 |
| Ireland and the English crown, 1171-1541 | Lydon, James F. | Article in Journal | | 1995 |
| Ireland in 1297 : "at peace after its manner" | Lydon, James F. | Article in Book | | 1997 |
| Ireland in the later Middle Ages | Lydon, James F. | Monograph or Collective Volume | Gill & Macmillan | 1973 |
| Ireland's participation in the military activities of English kings in the thirteenth and early-fourteenth century | Lydon, James F. | Thesis | | |
| Irish levies in the Scottish wars, 1296-1302 | Lydon, James F. | Article in Journal | | 1961 |
| John de Courcy (c.1150-1219) and the medieval frontier | Lydon, James F. | Article in Book | | 1989 |
| Law and disorder in thirteenth-century Ireland : the Dublin Parliament of 1297 | | Monograph or Collective Volume | Four Courts | 1997 |
| Lordship and crown : Llywelyn of Wales and O'Connor of Connacht | Lydon, James F. | Article in Book | Donald | 1988 |
| Medieval Waterford | Lydon, James F. | Article in Journal | | 1981 |
| Medieval Wicklow : 'a land of war' | Lydon, James F. | Article in Book | | 1994 |
| Nation and race in medieval Ireland | Lydon, James F. | Article in Book | | 1995 |
| Parliament and the community of Ireland | Lydon, James F. | Article in Book | | 1997 |
| Richard II's expeditions to Ireland | Lydon, James F. | Article in Journal | | 1963 |
| Select documents XXIV. Edward II and the revenues of Ireland in 1311-12 | | Article in Journal | | 1964 |
| The Braganstown massacre, 1329 | Lydon, James F. | Article in Journal | | 1978 |
| The Bruce invasion of Ireland | Lydon, James F. | Article in Book | | 1963 |
| The Bruce invasion of Ireland : an examination of some problems | Lydon, James F. | Article in Book | | 2002 |
| The Case against Alexander Bicknor, Archbishop and Peculator | Lydon, James F. | Article in Book | | 2009 |
| The city of Waterford in the later middle ages | Lydon, James F. | Article in Journal | | 1979 |
| The county of Uriel account, 1281-83 | Lydon, James F. | Article in Journal | | 1981 |
| The defence of Dublin in the Middle Ages | Lydon, James F. | Article in Book | | 2003 |
| The Dublin purveyors and the wars in Scotland, 1296-1324 | Lydon, James F. | Article in Book | | 1988 |
| The English in medieval Ireland | | Monograph or Collective Volume | | 1984 |
| The English in medieval Ireland : proceedings of the first joint meeting of the Royal Irish Academy and the British Academy, Dublin, 1982 | Lydon, James F. | Monograph or Collective Volume | Royal Irish Academy | 1984 |
| The enrolled account of Alexander Bicknor, treasurer of Ireland, 1308-1314 | | Article in Journal | | 1982 |
| The expansion and consolidation of the colony, 1215-54 | Lydon, James F. | Article in Book | | 1987 |
| The financing of English expeditions to Ireland, 1361-1376 | Connolly, Philomena | Article in Book | Irish Academic Press | 1981 |
| The hobelar : an Irish contribution to mediaeval warfare | Lydon, James F. | Article in Journal | | 1954 |
| The impact of the Bruce invasion, 1315-27 | Lydon, James F. | Article in Book | | 1987 |
| The Irish church and taxation in the fourteenth century | Lydon, James F. | Article in Journal | | 1965 |
| The Irish church and taxation in the fourteenth century | Lydon, James F. | Article in Journal | | 1964 |
| The Irish exchequer in the thirteenth century | Lydon, James F. | Article in Journal | | 1958 |
| The Lordship of Ireland in the Middle Ages | Lydon, James F. | Monograph or Collective Volume | Gill & Macmillan | 1972 |
| The making of Ireland : from ancient times to the present | Lydon, James F. | Monograph or Collective Volume | Routledge | 1998 |
| The medieval city | Lydon, James F. | Article in Book | | 1988 |
| The medieval English colony (c. 1300-c. 1400) | Lydon, James F. | Article in Book | | 1967 |
| The medieval English colony, c.1300-c.1400 | Lydon, James F. | Article in Book | | 1967 |
| The middle nation | Lydon, James F. | Article in Book | | 1984 |
| The mills at Ardee in 1304 | Lydon, James F. | Article in Journal | | 1980 |
| The problem of the frontier in medieval Ireland | Lydon, James F. | Article in Journal | | 1967 |
| The Scottish soldier in medieval Ireland : the Bruce invasion and the galloglass | Lydon, James F. | Article in Book | | 1992 |
| The years of crisis, 1254-1315 | Lydon, James F. | Article in Book | | 1987 |
| Three Exchequer documents from the reign of Henry III | Lydon, James F. | Article in Journal | | 1966 |
| William of Windsor and the Irish parliament | Lydon, James F. | Article in Journal | | 1965 |