Frank Phillip Sibley (born 4 December 1947, in Uxbridge) is an English former footballer and a member of the QPR double winning side that captured both the Third Division Championship in 1966–67 and the League Cup on 4 March 1967. Sibley was the youngest player to play in the QPR first team at the age of 15 on 3 September 1963 away to Aldershot in a League Cup tie. He retired from playing early, at the age of 23, after suffering a knee injury. He joined the coaching staff at QPR, and later became manager. He was also manager of Walsall in 1979. He is currently chief scout for Watford.