Air Commodore Geoffrey Dalton Stephenson, CBE (19 January 1910 – 8 November 1954) was a senior Royal Air Force officer. He served as Commandant of the Central Flying School and Central Fighter Establishment, and Aide-de-Camp to the monarch. Commanding a squadron during the Dunkirk evacuation in May 1940, Stephenson was shot down, crash-landed his Spitfire on the beach and was taken prisoner. Stephenson was killed in an air crash on 8 November 1954 while on a tour of the United States.