David Charles Carnegie, 4th Duke of Fife (born 3 March 1961) is a Scottish peer.
He is the only son of the late James Carnegie, 3rd Duke of Fife, and his former wife Caroline Dewar.
He was styled Earl of Macduff until 1992, and then Earl of Southesk until succeeding his father on 22 June 2015 as the fourth Duke of Fife and Chief of the Clan Carnegie.
As a great-great-grandson of Edward VII, he is in the line of succession to the British throne.
He is also the second cousin once removed of Queen Elizabeth II.