James Carnegie, 3rd Duke of Fife (born 23 September 1929), is a great grandson of King Edward VII of the United Kingdom and a member of the extended British Royal Family, 53rd in line to the British throne. As a female line great grandson of a British Sovereign, he does not carry out royal and official duties or receive any monies from the Civil List.

His Grace The Most Noble Sir James George Alexander Bannerman Carnegie, 3rd Duke of Fife, 9th Earl of Southesk, 3rd Earl of Macduff, 9th Lord Carnegie of Kinnaird, 9th Lord Carnegie of Kinnaird and Leuchars, 4th Baron Balinhard and 9th Baronet, is the only son of Charles Carnegie, 11th Earl of Southesk (1893-1992) and his wife, HH Princess Maud (1905-1945), the younger daughter of Alexander Duff, 1st Duke of Fife and Louise, Princess Royal and Duchess of Fife. As the son of the Earl of Southesk, he held the courtesy title of Lord Carnegie of Kinnaird from birth. On 26 February 1959, he succeeded his maternal aunt, HRH Princess Arthur of Connaught, as the 3rd Duke of Fife and Earl of Macduff. He succeeded his father as 9th Earl of Southesk, as well as chief of the Clan Carnegie on 16 February 1992.

The Duke of Fife was educated at Ludgrove, Gordonstoun, and at the Royal Agricultural College, Cirencester. He served with the Scots Guards in Malaya in 1948-50. He served as vice patron of the Braemar Royal Highland Society and of the British Olympic Association. On 11 September 1956, the then-Lord Carnegie married the Hon. Caroline Dewar (born 12 February 1934), the elder daughter of Alexander Dewar, 3rd Baron Forteviot. They divorced in 1966. The marriage produced two children:

• The Lady Alexandra Clare Carnegie (born 20 June 1959) m. London 11 May 2001 Mark Fleming Etherington, and has issue.

• David Charles Carnegie, Earl of Southesk (born 3 March 1961), styled Earl of Macduff (by courtsey) from birth until his paternal grandfather's death 16 February 1992, thereafter styled Earl of Southesk; m. 16 July 1987 Caroline Anne Bunting (born 13 November 1961); and has issue.