Gary John Sutton (born 27 March 1955) is an Australian cycling coach and former professional racing cyclist. A road and track rider, Sutton represented Australia at the 1976 Summer Olympics and 1980 Summer Olympics, won medals at the 1974 British Commonwealth Games and 1978 Commonwealth Games, and became world amateur champion in the points race at the 1980 UCI Track Cycling World Championships.

During his racing career, Sutton won 43 Australian national cycling titles across road and track disciplines. He later raced professionally and won the Herald Sun Tour in 1984. Following his racing career, Sutton became a national cycling coach, spending 26 years with Cycling Australia before joining USA Cycling in 2017.