Stephen John Tuckwell, GC (4 June 1897 – 2 October 1966) was a sailor in the Royal Navy who awarded the George Cross for his "great gallantry and undaunted devotion to duty" in bomb disposal work during the Blitz of late 1940. He was attached to HMS Vernon and rendered many unexploded devices safe, including several parachute mines which fell onto the bank of the River Roding in Essex.