| Sir Geoffrey Dalton | |
| Birth Date: | 14 April 1931 |
| Allegiance: |  United Kingdom |
| Serviceyears: | 1949–1987 |
| Rank: | Vice Admiral |
| Commands: | 7th Frigate Squadron School of Maritime Operations |
| Awards: | Knight Commander of the Order of the Bath |
Vice Admiral Sir Geoffrey Thomas James Oliver Dalton (14 April 1931 – 26 September 2020) was a Royal Navy officer who became Deputy Supreme Allied Commander Atlantic.
Educated at Reigate Grammar School[1] and the Royal Naval College, Dartmouth, Dalton joined the Royal Navy in 1949.[2] He was given command of the frigate in 1969.[2] He was appointed Commanding Officer of the frigate as well as Captain of the 7th Frigate Squadron in 1977, Commander of the School of Maritime Operations in 1979 and Assistant Chief of the Naval Staff (Policy) in 1981.[2] He went on to be Deputy Supreme Allied Commander Atlantic in 1984 and retired in 1987.[2]
In retirement he became Secretary General of MENCAP[1] and, more recently, President of the D-Day and Normandy Fellowship.[3]
He died on 26 September 2020 at the age of 89.[4]
In 1957 he married Jane Hamilton Baynes; they have four sons.[2]