Paul Haydon Greene (born 9 December 1972) is a professional musician and was an Australian athlete who competed in the 1996 Olympics in the 400m and 4 x 400m relay. He also competed in the Commonwealth Games in 1990 and 1994, and the World Championships in 1991 and 1995 In 2000, he joined the Australian superband Ghostwriters with drummer Rob Hirst (Midnight Oil) and bassist Rick Grossman (ex-Hoodoo Gurus).