Lionel Crabb | |
|---|---|
 Crabb, April 1944 | |
| Nickname(s) | Buster |
| Born | 28 January 1909 London, England |
| Died | 19 April 1956 (aged 47) (presumed dead) |
| Allegiance | United Kingdom |
| Service | Royal Navy |
| Years of service | 1941–1947 |
| Rank | Lieutenant commander |
| Battles / wars | World War II |
| Awards | Order of the British Empire George Medal |
| Other work | MI6 diver |
Lieutenant-Commander Lionel Kenneth Phillip Crabb, OBE, GM (28 January 1909 – presumed dead 19 April 1956), known as Buster Crabb, was a Royal Navy frogman and diver who vanished during a reconnaissance mission for MI6 around a Soviet Union cruiser berthed at Portsmouth Dockyard in 1956.