| A double periphery : Ireland within the United Kingdom 1800-1921 | Hoppen, K. Theodore, 1941- | Article in Book | | 1997 |
| A question none could answer : ' what was the Irish viceroyalty for'? 1800 - 1921 | Hoppen, K. Theodore, 1941- | Article in Book | | 2012 |
| An Incorporating Union? British Politicians and Ireland 1800-1830 | Hoppen, K. Theodore, 1941- | Article in Journal | | 2008 |
| Borough politics in O'Connellite Ireland : the Youghal poll books of 1835 and 1837 (ctd.) | Barry, A.Hoppen, K. Theodore, 1941- | Article in Journal | | 1979 |
| British politicians and the transformation of rural society in nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 2016 |
| Elections, politics and society in Ireland 1832-1885 | Hoppen, K. Theodore, 1941- | Monograph or Collective Volume | Clarendon Press | 1984 |
| Gladstone : Ireland and beyond | | Monograph or Collective Volume | Four Courts | 2011 |
| Gladstone, Salisbury and the end of Irish assimilation | Hoppen, K. Theodore, 1941- | Article in Book | | 2011 |
| Governing Ireland : British politicians and Ireland, 1800-1921 | Hoppen, K. Theodore, 1941- | Monograph or Collective Volume | Oxford University Press | 2016 |
| Grammars of electoral violence in nineteenth-century England and Ireland | Hoppen, K. Theodore, 1941- | Article in Journal | | 1994 |
| Introduction | Hoppen, K. Theodore, 1941- | Article in Book | | 2011 |
| Ireland since 1800 : conflict and conformity | Hoppen, K. Theodore, 1941- | Monograph or Collective Volume | Longman | 1989 |
| Ireland since 1800 : conflict and conformity | Hoppen, K. Theodore, 1941- | Monograph or Collective Volume | Longman | 1999 |
| Ireland, Britain, and Europe : twentieth-century nationalism and its spoils | Hoppen, K. Theodore, 1941- | Article in Journal | | 1991 |
| Irish election poll books, 1832-72 | Hoppen, K. Theodore, 1941-Walker, B. M. (Brian Mercer) | Article in Journal | | 1980 |
| Landlords, society and electoral politics in mid-nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 1987 |
| Landlords, society and electoral politics in mid-nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Journal | | 1977 |
| Landownership and power in nineteenth-century Ireland : the decline of an elite | Hoppen, K. Theodore, 1941- | Article in Book | | 1991 |
| Le elites e l'influenza elettorale in Irlanda 1800-1918 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1988 |
| National politics and local realities in mid-nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 1979 |
| Nationalist mobilisation and governmental attitudes : geography, politics and nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 1997 |
| Papers of the Dublin Philosophical Society 1683-1709 | | Monograph or Collective Volume | Irish Manuscripts Commission | 2008 |
| Politics, the law, and the nature of the Irish electorate 1832-1850 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1977 |
| Priests at the hustings : ecclesiastical electioneering in nineteenth-century Ireland | Hoppen, K. Theodore, 1941- | Article in Book | | 1996 |
| Queries for a seventeenth-century natural history of Ireland | Hoppen, K. Theodore, 1941- | Article in Journal | | 1963 |
| Review article: The history of Parliament as grand project | Hoppen, K. Theodore, 1941- | Article in Journal | | 2010 |
| Riding a tiger : Daniel O'Connell, reform, and popular politics in Ireland, 1800-1847 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1999 |
| Roads to democracy : electioneering and corruption in nineteenth-century England and Ireland | Hoppen, K. Theodore, 1941- | Article in Journal | | 1996 |
| Samuel Molyneux's 'Tour of Kerry', 1709 | | Article in Journal | | 1970 |
| Sir William Petty : polymath, 1623-1687 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1965 |
| The common scientist in the seventeenth century : a study of the Dublin Philosophical Society, 1683-1708 | Hoppen, K. Theodore, 1941- | Monograph or Collective Volume | Routledge & Kegan Paul | 1970 |
| The Dublin Philosophical Society and the new learning in Ireland | Hoppen, K. Theodore, 1941- | Article in Journal | | 1964 |
| The franchise and electoral politics in England and Ireland 1832-1885 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1985 |
| The Hartlib circle and the origins of the Dublin Philosophical Society | Hoppen, K. Theodore, 1941- | Article in Journal | | 1976 |
| The papers of the Dublin Philosophical Society, 1683-1708 : introductory material and index | Hoppen, K. Theodore, 1941- | Article in Journal | | 1982 |
| The Royal Society and Ireland, 2 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1965 |
| The Royal Society and Ireland, [1] : William Molyneux, F.R.S., 1656-98 | Hoppen, K. Theodore, 1941- | Article in Journal | | 1963 |