| Navy | The Royal Navy |
| Type | Submarine Depot Ship |
| Class | [No specific class] |
| Pennant | F 31 |
| Built by | Sir James Laing & Son (Sunderland, U.K.) |
| Ordered | |
| Laid down | |
| Launched | 27 Oct 1905 |
| Commissioned | Oct 1907 |
| End service | |
| Loss position | |
| History | Displacement: 11300 tons. Was at Malta in reserve at the start of the Second World War, went to home waters and served there for the duration of the war. Scrapped at Newport in July 1947. |
Commands listed for HMS Cyclops (F 31)
Please note that we're still working on this section.
| Commander | From | To | |
| 1 | Capt. Philip Ruck-Keene, RN | 15 Nov 1939 | 27 May 1940 |
| 2 | A/Capt. Edward Henry Longsdon, RN | 27 May 1940 | 11 Jul 1940 |
| 3 | A/Capt. Roderick Latimer Mackenzie Edwards, RN | 11 Jul 1940 | 5 Apr 1943 |
| 4 | A/Capt. Harold Robson Conway, RN | 5 Apr 1943 | 30 Oct 1944 |
| 5 | Cdr. Benjamin Bryant, DSO, DSC, RN | 30 Oct 1944 | 4 Feb 1945 |
| 6 | A/Capt. David Caldicott Ingram, DSC, OBE, RN | 5 Feb 1945 |
You can help improve our commands section
Click here to Submit events/comments/updates for this vessel.
Please use this if you spot mistakes or want to improve this ships page.