Rear Admiral George Walter Gillow Simpson CB, CBE (6 June 1901 – 2 March 1972) was a Royal Navy officer who became Flag Officer Submarines.

[1] He became commander of the 10th Submarine Flotilla, based at Malta in January 1941, during the Second World War, in which role his mission was to prevent enemy supplies reaching North Africa.

[2] Simpson became Chief of the New Zealand Navy Staff in 1948, Flag Officer Germany in 1951 and Flag Officer Submarines in 1952.

[3] In this role he was dual-hatted as NATO Commander Submarine Force Eastern Atlantic.

[6] In 1945 Simpson married Alison Hall; they had two sons and a daughter.