Captain Dugald Malcolm, CMG CVO TD (22 December 1917 – 16 February 2000) was a British diplomat, Her Britannic Majesty's Envoy Extraordinary and Minister Plenipotentiary to the Holy See 1975-1977. Malcolm was born in 1917, the son of Major-General Sir Neill Malcolm, and educated at Eton College and New College, Oxford. After serving in the Argyll and Sutherland Highlanders in the Second World War, he joined the Foreign Office in 1945. Malcolm was a member of the Queen's Bodyguard for Scotland (Royal Company of Archers).