Squadron Leader Geoffrey Harris Augustus Wellum DFC (4 August 1921—18 July 2018) was a British Battle of Britain fighter pilot and author.
Wellum suffered severe sinusitis and battle fatigue after three years' intensive frontline flying. He returned from Malta to Britain, becoming a test pilot on the Hawker Typhoon, based at Gloster Aircraft.
He finished the war as a gunnery instructor, staying in the RAF, first as a staff officer in West Germany, followed by a four-year tour with 192 Squadron. He married Grace, his wartime girlfriend, and they had three children.