| Navy | The Royal Navy |
| Type | Destroyer |
| Class | T |
| Pennant | R 45 |
| Built by | Cammell Laird Shipyard (Birkenhead, U.K.) |
| Ordered | 13 Mar, 1941 |
| Laid down | 3 Dec, 1941 |
| Launched | 24 Mar, 1943 |
| Commissioned | 30 Oct, 1943 |
| End service | |
| Loss position | |
| History | Scrapped at Troon in June 1965.
Commanding Officers: A/Lt.Cdr. George Clement Crowley, DSC, RN |
| Noteable events involving Tenacious include: 21 May, 1944 |
