John Dunning may refer to: John Dunning (businessman) (born 1934), British businessman, founder of Westmorland Motorway Services John Dunning (detective fiction author) (born 1942), American writer of detective fiction John Dunning (true crime author) (1918–1990), true crime author John Dunning (snooker player) (1927–2009), English professional snooker player John Harry Dunning (1927–2009), British economist John Dunning (film editor) (1916–1991), American film editor John Dunning (film producer) (1927–2011), Canadian film producer John R. Dunning (1907–1975), American physicist Jack Dunning (John Angus Dunning, 1903–1971), New Zealand Test cricketer John Dunning, 1st Baron Ashburton (1731–1783), English lawyer and politician John Dunning (volleyball) (born 1950), American volleyball coach