| Navy | The Royal Navy |
| Type | Sloop |
| Class | Bittern |
| Pennant | L 07 |
| Built by | J.S. White & Co. (Cowes, U.K.) |
| Ordered | |
| Laid down | 27 Aug, 1936 |
| Launched | 14 Jul, 1937 |
| Commissioned | 15 Mar, 1938 |
| Lost | 30 Apr, 1940 |
| Loss position | 64.28N, 11.30E (See a map) |
| History | HMS Bittern (Lt.Cdr. Robert Henry Mills, RN) was sunk by German bombers off Namsos, Norway in position 64º28'N, 11º30'E. Commanding Officers: Lt.Cdr. Robert Henry Mills, RN |
