HMS Conn K509
| Navy: | RN |
| Type: | Escort Destroyer |
| Class: | Captain |
| Pennant: | K 509 |
| Built by: | Bethlehem-Hingham Shipyard Inc. (Hingham, Massachusetts, U.S.A.) |
| Laid down: | 2 Jun, 1943 |
| Launched: | 21 Aug, 1943 |
| Commissioned: | 31 Oct, 1943 |
| End service: | Returned to the US on 26 Nov, 1945. Stricken and scrapped. |
| History: | Assigned USN pennant DE 80 but not named. |
| Former name: | DE 80 |
