Air Marshal Sir Valston Eldridge (Val) Hancock, KBE, CB, DFC (31 May 1907 – 29 September 1998) was a senior commander in the Royal Australian Air Force (RAAF). He served as Chief of the Air Staff from 1961 to 1965. A graduate of the Royal Military College, Duntroon, Hancock transferred to the RAAF in 1929 and qualified as a pilot.