John "Jack" Simon (born 29 May 1972) is an Australian former rugby league footballer who played in the 1990s and 2000s.
His club career was spent with the Illawarra Steelers, Easts, Parramatta, Auckland and Wests Tigers.
Of Indigenous Australian descent, Simon also represented Australia and New South Wales in Origin.
His brother, Craig Simon, also was a professional rugby league player.