| Navy | The Royal Navy |
| Type | Minesweeper |
| Class | Halcyon |
| Pennant | J 87 |
| Built by | William Hamilton & Co. (Port Glasgow, Scotland): William Beardmore & Co. (Dalmuir, Scotland) |
| Ordered | |
| Laid down | 20 Jun, 1934 |
| Launched | 21 Mar, 1935 |
| Commissioned | 30 Sep, 1935 |
| End service | |
| Loss position | |
| History | During the war HMS Speedwell took part in the Dunkirk evacuations, convoy duties in the North Atlantic, a raid on the Norwegian Lofoten Islands in December 1941. From early 1942 she operated from Murmansk, Russia. In December 1942 she participated in the North Africa landings. Later she returned to Russia. She returned home to prepare for the Normandy landings. When the war in Europe was over she participated in minesweeping operations in the North Sea. Sold on 5 December 1946. Commanding Officers: Lt.Cdr. Joseph John Youngs, OBE, RNR Lt.Cdr. T.E. Williams, DSC, RD, RNR T/Lt.Cdr. Herman Arnold Ledeboer, DSC, RNR A/Lt.Cdr. R.C. Oliver, RN |
| Noteable events involving Speedwell include: 29 Jun, 1941 13 Apr, 1942 |
