James Hamilton, 5th Duke of Abercorn, (born 4 July 1934), styled Viscount Strabane until 1953 and Marquess of Hamilton between 1953 and 1979, is a British peer, courtier and politician.

James Hamilton, 2nd Duke of Abercorn (24 August 1838 – 3 June 1913), styled Viscount Hamilton until 1868 and Marquess of Hamilton from 1868 to 1885, was a British nobleman, courtier, and diplomat.

James Hamilton, 1st Duke of Abercorn, (21 January 1811 – 31 October 1885), styled Viscount Hamilton from 1814 to 1818 and The Marquess of Abercorn from 1818 to 1868, was a British Conservative statesman who twice served as Lord Lieutenant of Ireland.

James Albert Edward Hamilton, 3rd Duke of Abercorn (30 November 1869 – 12 September 1953), styled Marquess of Hamilton between 1885 and 1913, was a British peer and Unionist politician.