Lieutenant-Commander John Bryan Peter Duppa-Miller (22 May 1903 – 15 December 1994), born John Bryan Peter Miller and known as Jack Duppa-Miller, was a Royal Navy officer who was 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.