| Navy | The Royal Navy |
| Type | Light cruiser |
| Class | Caledon |
| Pennant | D 61 |
| Built by | Hawthorn Leslie & Co. (Hebburn-on-Tyne, U.K.) |
| Ordered | |
| Laid down | 7 Feb, 1916 |
| Launched | 24 Jan, 1917 |
| Commissioned | 21 Jun, 1917 |
| Lost | 12 Jun, 1940 |
| Loss position | 34.03N, 24.05E (See a map) |
| History | HMS Calypso (Capt. Henry Aubrey Rowley, RN) was sunk in the Eastern Mediterranean, about 45 nautical miles south of Khania island, Greece in position 34º03'N, 24º05'E by 1 torpedo from the Italian submarine Bagnolini, Lcdr. Franco Tosoni-Pittoni.
On that night, Calypso was executing a search for enemy ships out of Alexandria. At 0050 hrs, already on the route home with CL Caledon and DD Dainty, was attacked by the surfaced Italian sub, lying in her "ambush position" some 50 nm southeast of Gavdo island. Commanding Officers: Capt. Henry Aubrey Rowley, RN |
| Noteable events involving Calypso include: 24 Sep, 1939 22 Nov, 1939 |
