Admiral Sir John Byng Frewen, GCB (28 March 1911 – 1 September 1975) was Commander-in-Chief Naval Home Command.

[2] He served in World War II in the Russian Convoys and as squadron navigating officer for aircraft carriers in the Pacific.

[2] He also served in the Korean War as commander of HMS Mounts Bay.

[2] He went on to be Vice Chief of the Naval Staff in 1963 and commander-in-chief, Home Fleet, in 1965.

[2] In that capacity he welcomed Sir Alec Rose back to Portsmouth after his single-handed trip around the world.