| Navy | The Royal Navy |
| Type | Armed Merchant Cruiser |
| Class | |
| Pennant | |
| Built by | William Beardmore & Co. Ltd. (Dalmuir, Scotland) |
| Ordered | |
| Laid down | |
| Launched | 22 Apr, 1925 |
| Commissioned | 15 Oct, 1939 |
| Lost | 13 Jun, 1940 |
| Loss position | 57.00N, 09.57W (See a map) |
| History | On 30 August 1939 the passenger ship Caledonia of the Anchor Line (Henderson Bros) Ltd, Glasgow was requisitioned by the Admiralty and converted to an armed merchant cruiser being renamed HMS Scotstoun. Conversion was completed on 15 October 1939.
Tonnage: 17046 BRT Career: At 07.16 hours on 13 June 1940, HMS Scotstoun (Capt. Sydney Keith Smyth, RN (Retired)) of the 10th Cruiser Squadron was hit in the stern by one torpedo from the German submarine U-25 about 80 nautical miles west of Barra Island, Outer Hebrides in position 57º00'N, 09º57'W . At 17.29 hours, a first coup de grâce missed, but a second hit just aft of the funnel and caused the ship to sink by the stern. Six ratings were lost. Hit by U-boat |
| Noteable events involving Scotstoun include: 19 Oct, 1939 21 Oct, 1939 19 Nov, 1939 |