This is a list of people who served as Lord Lieutenant of County Donegal. There were lieutenants of counties in Ireland until the reign of James II, when they were renamed governors. The office of Lord Lieutenant was recreated on 23 August 1831. The office is pronounced as 'Lord Lef-tenant'. Lieutenant Rory O'Donnell, 1st Earl of Tyrconnell: 28 March 1605– Governors Henry Conyngham, 1st Earl Conyngham: 1746–1781 Ralph Gore, 1st Earl of Ross: 1781– William Conyngham: 1781–1796 Robert Clements, 1st Earl of Leitrim: 1781–1804 Sir Samuel Hayes, 1st Baronet: 1781–1807 John Hamilton, 1st Marquess of Abercorn (died 1818) Nathaniel Clements, 2nd Earl of Leitrim: –1831 Henry Conyngham, 1st Marquess Conyngham: 1803–1831 Sir Samuel Hayes, 3rd Baronet: –1831 Lord Lieutenants The 2nd Marquess of Donegall: 17 October 1831 – 5 October 1844 The 1st Duke of Abercorn: 13 November 1844 – 31 October 1885 The 2nd Duke of Abercorn: 1885 – 3 January 1913 Sir John Olphert: 9 August 1913 – 11 March 1917 The 6th Earl of Arran: 25 August 1917 – 1920 Sir Emerson Crawford Herdman: 17 December 1920 – 1922 References Donegal Politics of County Donegal History of County Donegal