| Cresswell Clementi | |
| Birth Date: | 30 December 1918 |
| Birth Place: | British Guiana |
| Allegiance: |  United Kingdom |
| Serviceyears: | 1938–1974 |
| Rank: | Air Vice Marshal |
| Commands: | No. 214 Squadron (1946–1948) RAF Bassingbourn (1958–1961) No. 19 Group (1968–1969) |
| Battles: | Second World War |
| Awards: | Companion of the Order of the Bath Commander of the Order of the British Empire Mentioned in Despatches |
| Relations: | Cecil Clementi (father) Marie Penelope Rose Eyres (mother) |
Air Vice Marshal Cresswell Montagu Clementi (30 December 1918 – 26 August 1981) was a senior Royal Air Force (RAF) commander.
Clementi was the son of Cecil Clementi and Marie Penelope Rose Eyres. He was born on 20 December 1918 in British Guiana during his father's posting there as Colonial Secretary (1913–1922). He joined the Royal Air Force Volunteer Reserve in 1939, and was granted a permanent commission in the RAF in 1946. He attended the British nuclear tests in 1958 at Christmas Island. He retired in 1974. He was Master of the Mercers' Company in 1977.[1] [2]
He was on the governing body of Abingdon School from 1979 to 1981.[3]
Clementi married Susan Pelham (1918–2006) in 1940 and had three children: