| Navy | The Royal Navy |
| Type | Destroyer |
| Class | O |
| Pennant | G 04 |
| Built by | Fairfield Shipbuilding & Engineering Co. (Govan, Scotland) |
| Ordered | 3 Sep, 1939 |
| Laid down | 14 Jan, 1941 |
| Launched | 9 Oct, 1941 |
| Commissioned | 19 Jun, 1942 |
| End service | |
| Loss position | |
| History | Transferred to Pakistan on 6 March 1951 being renamed Tughril.
Commanding Officers: Cdr. The Hon. Anthony Pleydell-Bouverie, RN Cdr. Reginald Trevor Paul, CBE, RN HMS Onslaught is not listed in the October 1945 Navy List |
| Former name | HMS Pathfinder |
| Noteable events involving Onslaught include: 4 Mar, 1944 12 Jan, 1945 |

