| Navy | The Royal Navy |
| Type | Corvette |
| Class | Flower |
| Pennant | K 34 |
| Built by | Smiths Dock Co., Ltd. (South Bank-on-Tees, U.K.) |
| Ordered | 25 Jul, 1939 |
| Laid down | 19 Oct, 1939 |
| Launched | 24 Jan, 1940 |
| Commissioned | 6 Apr, 1940 |
| Lost | 17 Oct, 1941 |
| Loss position | 57.00N, 25.00W (See a map) |
| History | HMS Gladiolus (Lt.Cdr. Harry Marcus Crews Sanders, DSO, DSC, RD, RNR) was torpedoed and sunk (most likely) by the German submarine U-558 south of Iceland in position 57º00'N, 25º00'W while escorting convoy SC-48. She was ordered to pick up survivors from several torpedoed ships and in doing so fell behind the convoy. She was last seen about 0100 hours and was reported missing thereafter. It is also possible that the ship was sunk by U-432 later that night. There were no survivors. Commanding Officer Hit by U-boat |
| Noteable events involving Gladiolus include: 28 Jun, 1940 1 Jul, 1940 27 Jun, 1941 |
