Admiral Sir John Graham Hamilton, GBE, CB (12 July 1910 – 27 October 1994) was a Royal Navy officer who served as Commander-in-Chief, Mediterranean Fleet from 1964 to 1967.

[1] Hamilton served in the Second World War on the staff of Admiral Sir Andrew Cunningham in the Mediterranean Fleet and was then Gunnery Officer on the battleship HMS Warspite in South East Asia.

[1] He also carried out the planning of the Naval Fire Support for the Normandy landings.

[2] After the war, Hamilton commanded HMS Alacrity, and was promoted to captain on 30 Jun 1949,[3] before becoming deputy director of Radio Equipment in 1950.

[1] He went on to be commander of the 5th Destroyer Squadron in 1952 and Director of Naval Ordnance at the Admiralty in 1954.