Sir Ewen Alastair John Fergusson GCMG GCVO (28 October 1932 – 20 April 2017)[1] was a British diplomat and Scotland international rugby union player.

[2] The son of Sir Ewen MacGregor Field Fergusson, formerly Chairman and Managing Director of the Straits Trading Company, Singapore, and Winifred Evelyn Fergusson, he was educated at Rugby and Oriel College, Oxford.

[5] After 2 years with the King's Royal Rifle Corps, he entered Her Majesty's Diplomatic Service in 1956.

He was Chairman of the governors of Rugby School from 1995 to 2002 and a trustee of the National Gallery from 1995 to 2002.

Fergusson married Sara Carolyn Montgomery Cuninghame (nee Gordon Lennox) and they were to have a son, also named Ewen, and daughters Iona and Anna.