John Elphinstone, 17th Lord Elphinstone
John Alexander Elphinstone, 17th Lord Elphinstone (22 March 1914 – 15 November 1975) was a British nobleman and serviceman during World War 2.
He was a son of Sidney Buller-Fullerton-Elphinstone, 16th Lord Elphinstone, a nephew of Elizabeth Bowes-Lyon and a cousin of Queen Elizabeth II.
During the war he was a prisoner of war, and was one of the "prominente" held in Oflag IV-C (Colditz).