Admiral Sir John Byng Frewen, GCB (28 March 1911 – 1 September 1975) was Commander-in-Chief Naval Home Command.
Frewen joined the Royal Navy in 1924.[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.[3]
He was appointed chief of staff to the commander-in-chief, Home Fleet, in 1959 and then became Flag Officer Second in Command Far East Fleet in 1961.[2] He went on to be Vice Chief of the Naval Staff in 1963 and commander-in-chief, Home Fleet, in 1965.[2] He was then appointed Commander-in-Chief, Portsmouth, in 1967.[2] Finally he was appointed the first Commander-in-Chief Naval Home Command (following the merger of the Portsmouth and Plymouth Commands) in 1969.[2] In that capacity he welcomed Sir Alec Rose back to Portsmouth after his single-handed trip around the world.[4] Frewen was also First and Principal Naval Aide-de-Camp to the Queen from 1968 to 1970. He retired in 1970.[2]
In retirement Frewen transferred Brickwall House School, a specialist school for boys with dyslexia, into an educational trust and renamed the school Frewen College.[5] In 1972 he was Chairman of the Royal Navy Club of 1765 & 1785 (United 1889).[6]