List of requisitioned trawlers of the Royal Navy (WWII)
This is a List of civilian trawlers requisitioned by the Royal Navy for use in World War II.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Requisitioned trawlers, whalers and drifters;[1]
A
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Aberdour | April 1940 | Balloon barrage vessel, returned 1946 |
| HMT Abiding Star | May 1940 | Mine recovery vessel, de-gaussing, returned 1946 |
| HMT Abronia | November 1939 | Minesweeper, scrapped 1947 |
| HMT Accord | August 1939 | Harbor service, sold 1946 |
| HMT Accumulator | 1940 | Harbor service, returned October 1940 |
| HMT Achievable | November 1939 | Mine recovery vessel, returned January 1946 |
| HMT Achroite | August 1939 | Minesweeper, returned 1945 |
| HMT Acorn | November 1939 | Harbor service, returned 1946 |
| HMT Acquire | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Acquisition | March 1940 | Submarine tender, mobile wiping unit, returned 1944 |
| HMT Acrasia | 1940 | Dan layer, auxiliary patrol, returned 1946 |
| HMT Adam | February 1940 | Minesweeper, sold 1944 |
| HMT Adele | November 1939 | Harbor service, returned 1946 |
| HMT Admiral Sir John Lawford | August 1939 | Minesweeper, wreck dispersal vessel, returned January 1946 |
| HMT Admire | March 1940 | Harbor service, returned January 1946 |
| HMT Adoration | 1940 | Exam, returned 1945 |
| HMT Adriatic | October 1940 | Auxiliary patrol, returned June 1945 |
| HMT Advisable | November 1939 | Minesweeper, returned 1945 |
| HMT Africana | September 1939 | Minesweeper, returned April 1947 |
| HMT Afterglow | November 1939 | Minesweeper, returned August 1944 |
| HMT Agnes Bunyan | June 1940 | Boom tender, returned December 1940 |
| HMT Agnes Gardner | 1941 | Harbor service, returned 1945 |
| HMT Agnes Nutten | June 1940 | Auxiliary patrol, returned January 1946 |
| HMT Agnes Wetherly | June 1940 | Auxiliary patrol, returned December 19458 |
| HMT Agnes Wickfield | November 1939 | Minesweeper, returned December 1945 |
| HMT Aiglon | July 1940 | Minesweeper, returned July 1946 |
| HMT Akita | August 1939 | Minesweeper, returned October 1945 |
| HMT Akranes | August 1939 | Minesweeper, bombed in Bridlington Bay 4 July 1941 |
| HMT Alafoss | August 1939 | Minesweeper, sold 1946 |
| HMT Alberic | 1940 | Minesweeper, sunk in collision with St. Albans off Scapa 3 May 1941 |
| HMT Albert Hulett | February 1941 | Minesweeper, Langlaagte 1942, returned April 1946 |
| HMT Alcmaria | December 1939 | Minesweeper, Royal Norwegian Navy 1940 |
| HMT Alcor | December 1939 | Minesweeper, returned 1945 |
| HMT Alex Hastie | October 1939 | Auxiliary patrol, returned February 1940 |
| HMT Alex Watts | 1940 | Torpedo recovery vessel, returned 1945 |
| HMT Alexandre Gabrielle | July 1940 | Balloon barrage vessel, returned July 1944 |
| HMT Alexander Scott | 1939 | Minesweeper, Dan layer, returned 1945 |
| HMT Alexandrite | 1939 | Minesweeper, returned December 1945 |
| HMT Alfie Cam | June 1940 | Minesweeper, sold 1944 |
| HMT Alfredian | December 1939 | Auxiliary patrol, returned 1946 |
| HMT Algoa Bay | October 1939 | Minesweeper, returned December 1940 |
| HMT Alida | 1940 | Boom defense vessel, returned 1945 |
| HMT All Hallows | 1944 | Esso, returned 1945 |
| HMT Allersie | 1940 | Balloon barrage vessel, returned 1944 |
| HMT Allochy | 1941 | Hospital drifter, returned 1945 |
| HMT Alma | 1943 | Minesweeper Royal Netherlands Navy, returned 1945 |
| HMT Almandine | August 1939 | Minesweeper, sold December 1945 |
| HMT Alouette | 1939 | Anti-submarine, sunk by U-552 off Portugal 19 September 1942 |
| HMT Alsey | 1940 | Motor launch, returned 1945 |
| HMT Altruist | January 1941 | Harbor services, returned 1944 |
| HMT Alvis | May 1940 | Auxiliary patrol, Minesweeper, returned March 1945 |
| HMT Amalia | December 1939 | Minesweeper, returned March 1945 |
| HMT Amaranthe | 1942 | Mine watcher, returned 1945 |
| HMT Ambition | 1944 | Esso, returned 1945 |
| HMT Ambrose | July 1940 | Anti-submarine, returned March 1946 |
| HMT Amiable | 1940 | Mobile wiping unit, returned 1945 |
| HMT Ampulla | 1940 | Auxiliary patrol, Minesweeper, sold 1946 |
| HMT Amroath Castle | 1940 | Auxiliary patrol, Minesweeper, returned 1945 |
| HMT A.N. 2 | October 1940 | Auxiliary patrol, Mined off Falmouth 8 November 1940 |
| HMT Ancre Esperance | 1940 | Auxiliary patrol, returned August 1946 |
| HMT Andanes | October 1940 | Boom defense vessel, returned 1946 |
| HMT Andradite | August 1939 | Minesweeper, returned January 1946 |
| HMT Andre Et Louise | July 1940 | Minesweeper, returned April 1945 |
| HMT Andre-Marcel | August 1940 | Auxiliary patrol, KBV, returned 1945 |
| HMT Andre Monique | July 1940 | Auxiliary patrol, returned 1945 |
| HMT Andronie-Camiel | July 1940 | Auxiliary patrol, ferry service, returned 1945 |
| HMT Andyk | 1941 | Minesweeper, returned January 1946 |
| HMT Angele Marie | July 1940 | Minesweeper, returned January 1946 |
| HMT Angle | 1939 | Auxiliary service, returned October 1945 |
| HMT Animate | 1941 | Harbor service, returned 1946 |
| HMT Animation | 1940 | Balloon barrage vessel, torpedo recovery vessel, returned 1945 |
| HMT Ann Melville | February 1940 | Minesweeper, Esso, returned October 1944 |
| HMT Annabelle | December 1939 | Auxiliary patrol, balloon barrage vessel, returned December 1944 |
| HMT Anne-Gaston | July 1940 | Examination service, returned June 1945 |
| HMT Anne Marie | 1940 | Auxiliary patrol, lost 20 January 1942 |
| HMT Annie | July 1940 | Auxiliary patrol, returned February 1946 |
| HMT Anson | October 1939 | Auxiliary patrol |
| HMT Anticyclone | March 1941 | De-gaussing vessel, returned July 1945 |
| HMT Antioche II | July 1940 | Minesweeper, returned 1945 |
| HMT Appletree | 1940 | aircraft observation, lost in collision at Oban 15 October 1940 |
| HMT Aquamarine | August 1939 | Armed boarding vessel, anti-submarine, returned 1944 |
| HMT Arab | 1939 | Anti-submarine, returned 1945 |
| HMT Arabesque | December 1939 | Auxiliary patrol, balloon barrage vessel, Esso, returned September 1944 |
| HMT Aracari | January 1943 | Esso, wrecked north of Sicily 3 October 1943 |
| HMT Aragonite | August 1939 | Minesweeper, Mined off Deal 22 November 1939 |
| HMT Arcady | December 1939 | Minesweeper, returned June 1945 |
| HMT Arcanes | September 1939 | Minesweeper |
| HMT Archimedes | April 1940 | Balloon barrage vessel, returned December 1944 |
| HMT Arctic Explorer | August 1939 | Anti-submarine United States Navy, sold 1945 |
| HMT Arctic Hunter | August 1939 | Minesweeper, returned May 1945 |
| HMT Arctic Pioneer | September 1939 | Anti-submarine, unknown cause off Portsmouth 27 May 1942 |
| HMT Arctic Ranger | August 1939 | Anti-Submarine, sold 1946 |
| HMT Arctic Trapper | June 1940 | Auxiliary patrol, bombed off Ransgate 3 February 1941 |
| HMT Argo | July 1940 | Minesweeper, returned February 1946 |
| HMT Argyllshire | September 1939 | Anti-submarine, torpedoed by E-boat off Dunkirk 1 June 1940 |
| HMT Aristea | December 1939 | Minesweeper, returned December 1944 |
| HMT Arkwright | August 1939 | Minesweeper, sold December 1945 |
| HMT Arlette | August 1939 | Examination services, returned September 1946 |
| HMT Arley | August 1939 | Minesweeper, Mined North Sea 3 February 1945 |
| HMT Arleux | 1939 | Minesweeper, boom gate vessel, returned 1946 |
| HMT Armana | June 1940 | Auxiliary patrol, Minesweeper, Dan layer, returned November 1945 |
| HMT Arnold Bennett | June 1940 | Minesweeper, returned July 1945 |
| HMT Arora | June 1940 | Boom defense vessel, returned August 1940 |
| HMT Arras | 1939 | Minesweeper, returned August 1946 |
| HMT Arrest | June 1940 | Boom defense vessel, returned July 1945 |
| HMT Arsenal | August 1939 | Anti-submarine, lost in collision with Burza off the Clyde 16 November 1940 |
| HMT Artegal | November 1939 | Minesweeper, returned March 1945 |
| HMT Arthur Cavanagh | August 1939 | Minesweeper, sold January 1946 |
| HMT Arum | January 1940 | Minesweeper, returned October 1944 |
| HMT Asama | August 1939 | Minesweeper, bombed at Plymouth 21 March 1941 |
| HMT Ascona | November 1939 | Minesweeper, returned November 1945 |
| HMT Asie | September 1940 | Anti-submarine, returned April 1946 |
| HMT Aston Villa | September 1939 | Anti-submarine, bombed off Norway 3 May 1940 |
| HMT Astros | December 1939 | Boom defense vessel, returned 1946 |
| HMT Athelston | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Athenian | November 1939 | Minesweeper, Esso, returned September 1946 |
| HMT Atlantic | June 1940 | Boom defense vessel, returned October 1940 |
| HMT Atmosphere | December 1940 | Minesweeper, returned December 1945 |
| HMT Aurora II | June 1940 | Minesweeper, bombed at Tobruk 25 May 1941 |
| HMT Aurilia | November 1939 | Minesweeper, returned August 1946 |
| HMT Available | November 1939 | Auxiliary patrol, returned January 1946 |
| HMT Avalanche | November 1939 | Minesweeper, Balloon barrage vessel, returned 1945 |
| HMT Avalon | 1940 | Auxiliary patrol, Adonis June 1941, lost 15 April 1943 |
| HMT Avanturine | October 1939 | Minesweeper, torpedoed by E-boat off Beachy Head 1 December 1943 |
| HMT Avola | August 1939 | Minesweeper, returned April 1946 |
| HMT Avon | May 1940 | Auxiliary patrol, returned December 1941 |
| HMT Avona | August 1939 | Minesweeper |
| HMT Avondee | March 1944 | Esso, returned October 1944 |
| HMT Avonglen | August 1939 | Exam hospital trawler, returned August 1946 |
| HMT Avonstream | September 1939 | Minesweeper, returned July 1945 |
| HMT Avonwater | September 1939 | Boom defense vessel, returned May 1946 |
| HMT Ayrshire | September 1939 | Anti-submarine, returned October 1945 |
B
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Babiana | September 1939 | Minesweeper, returned December 1944 |
| HMT Badinage | 1940 | Minesweeper, returned 1945 |
| HMT Bahram | 1940 | Harbor defense patrol craft, mined off the Humber 3 April 1941 |
| HMT Bandolero | August 1939 | Anti-submarine, lost in collision with Waterhen off Sollum 30 December 1940 |
| HMT Banneret | September 1939 | Harbor service, returned 1944 |
| HMT Banshee | November 1939 | Minesweeper, returned January 1946 |
| HMT Barbados | October 1939 | Auxiliary patrol, returned 1945 |
| HMT Barbara Robb | September 1939 | Boom defense vessel, returned December 1944 |
| HMT Barbara Robertson | 1939 | Auxiliary patrol, sunk by U-30 gunfire off the Hebrides 23 December 1939 |
| HMT Barbe Auguste | 1940 | Mine layer tender, returned 1945 |
| HMT Baresness | February 1940 | Balloon barrage vessel, Esso, returned December 1944 |
| HMT Basile Georges | August 1940 | Harbor services, returned November 1945 |
| HMT Basuto | January 1940 | Boom defense vessel, returned January 1946 |
| HMT Beaulne Verneuil | July 1940 | Boom gate vessel, returned March 1946 |
| HMT Beathwood | November 1939 | Auxiliary patrol, returned January 1940, lost 11 September 1940 |
| HMT Beaumaris Castle | February 1940 | Minesweeper, returned November 1945 |
| HMT Beaver | November 1939 | Minesweeper, sunk by Japanese submarine off Ceylon 5 April 1942 |
| HMT Bedlington | April 1940 | Anti-submarine to Ministry of War Transport September 1945 |
| HMT Bedfordshire | August 1939 | Anti-submarine with US Navy, sunk by German submarine U-558 off Cape Lookout 11 May 1942 |
| HMT Belldock | November 1939 | Auxiliary patrol, returned 1940 |
| HMT Belle O'Moray | March 1940 | Harbor services, returned February 1946 |
| HMT Belton | August 1939 | Exam, returned March 1946 |
| HMT Belvoir Castle | 1940 | Balloon barrage vessel, returned 1944 |
| HMT Ben and Lucy | October 1939 | Minesweeper, returned 1945 |
| HMT Ben Ardna | August 1939 | Exam, lost in collision off the Tyne 12 May 1942 |
| HMT Ben Barvas | June 1940 | Auxiliary patrol, returned September 1940 |
| HMT Ben Bheulah | August 1939 | Minesweeper, returned October 1945 |
| HMT Ben Bhrackie | March 1940 | Minesweeper, returned December 1945 |
| HMT Ben Breac | June 1940 | Minesweeper, returned December 1945 |
| HMT Ben Dearg | August 1939 | Minesweeper, returned June 1946 |
| HMT Ben Earn | February 1940 | Minesweeper, returned February 1946 |
| HMT Ben Gairn | June 1940 | Minesweeper, bombed at Lowestoft 4 May 1941 |
| HMT Ben Glas | November 1939 | Minesweeper, lost 4 May 1941 |
| HMT Ben Gulvain | August 1939 | Auxiliary patrol, Minesweeper, Esso, returned October 1944 |
| HMT Ben Heilem | November 1939 | Minesweeper, returned August 1946 |
| HMT Ben Idris | August 1939 | Minesweeper, returned April 1946 |
| HMT Ben Meidie | January 1940 | Exam, Minesweeper, returned September 1945 |
| HMT Ben Rossal | September 1939 | Minesweeper, returned March 1946 |
| HMT Ben Roy | February 1940 | Boom defense vessel, returned March 1946 |
| HMT Ben Tarbert | June 1940 | Boom defense vessel, store carrier, returned February 1945 |
| HMT Ben Torc | November 1939 | Minesweeper, returned September 1946 |
| HMT Ben Urie | February 1940 | Minesweeper, returned December 1945 |
| HMT Benachie | October 1939 | Minesweeper, submarine tender, returned 1946 |
| HMT Bengal | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Bengali | August 1939 | Anti-submarine, lost 5 December 1942 |
| HMT Benjamin Coleman | November 1939 | Auxiliary patrol, Esso, returned September 1945 |
| HMT Benoni | May 1942 | Minesweeper, returned April 1946 |
| HMT Benvolio | September 1939 | Minesweeper, mined off the Humber 23 February 1940 |
| HMT Berenga | November 1939 | Balloon barrage vessel, returned September 1945 |
| HMT Berkshire | October 1939 | Anti-submarine, returned November 1945 |
| HMT Bernadette | July 1940 | Boom defense vessel, returned December 1945 |
| HMT Bernard Shaw | September 1939 | Minesweeper, returned September 1945 |
| HMT Bertha Lina | July 1940 | Balloon barrage vessel, tender, returned February 1946 |
| HMT Beru | October 1939 | Auxiliary patrol, returned December 1939 |
| HMT Bervie Braes | November 1939 | Auxiliary patrol, Minesweeper, Esso, returned October 1944 |
| HMT Beryl II | March 1940 | Harbor service, returned March 1946 |
| HMT Beryl II | September 1939 | Minesweeper, Boom gate vessel, returned 1945 |
| HMT Betsy Slater | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Betty Bodie | August 1939 | Exam, returned June 1946 |
| HMT Betty Inglis | December 1939 | Minesweeper, harbor service, returned March 1946 |
| HMT Bever | October 1941 | Minesweeper, mined off Piraeus 30 November 1944 |
| HMT Billow | 1941 | Minesweeper, returned 1945 |
| HMT Bilsdean | February 1940 | Minesweeper, returned November 1945 |
| HMT Bjerk | September 1940 | Minesweeper, returned October 1945 |
| HMT Blaauwberg | December 1940 | Anti-Submarine, returned May 1946 |
| HMT Blackburn Rovers | August 1939 | Anti-submarine, lost probably by RN mine, North Sea 2 June 1940 |
| HMT Blackfly | August 1939 | Anti-submarine, sold March 1946 |
| HMT Blanche Madeleine | August 1940 | Harbor service, returned 1945 |
| HMT Blanche Marguerite | August 1940 | Auxiliary patrol, returned November 1945 |
| HMT Blia | 1941 | Lost 11 November 1941 |
| HMT Blighty | 1940 | Minesweeper, Polish Podole 1944 |
| HMT Blizzard | May 1941 | Minesweeper, returned July 1945 |
| HMT Blomvlei | March 1940 | Anti-submarine, returned March 1945 |
| HMT Blue Haze | May 1940 | Torpedo recovery vessel, returned February 1946 |
| HMT Blue Tit | 1940 | Observation Motor launch, returned November 1945 |
| HMT Bluff | September 1939 | Minesweeper, returned December 1944 |
| HMT Boarhound | August 1940 | Anti-submarine, returned 1945 |
| HMT Bodo | 1940 | Minesweeper; mined off east coast Scotland 4 January 1943 |
| HMT Boksburg | October 1940 | Minesweeper, returned July 1946 |
| HMT Bombay | October 1939 | Auxiliary patrol, returned January 1940, lost 6 August 1942 |
| HMT Bona | April 1944 | Esso, returned November 1944 |
| HMT Borealis | May 1941 | Minesweeper, returned October 1945 |
| HMT Border King | August 1939 | Harbor service, returned October 1945 |
| HMT Bortind | 1940 | Minesweeper, returned 1946 |
| HMT Botanic | August 1939 | Minesweeper, bombed in the North Sea 18 February 1942 |
| HMT Bounteous | 1942 | Exam, returned 1946 |
| HMT Bounteous | 1941 | Harbor service, returned 1946 |
| HMT Bouvet 1 | March 1940 | Minesweeper, returned 1945 |
| HMT Bouvet 2 | March 1940 | Minesweeper returned April 1946 |
| HMT Bouvet 3 | March 1940 | Minesweeper April 1946 |
| HMT Bouvet 4 | March 1940 | Minesweeper, returned June 1946 |
| HMT Bow Wave | November 1940 | Torpedo recovery vessel, returned May 1946 |
| HMT Boy Alan | November 1939 | Minesweeper, lost in collision, Thames Estuary 10 February 1941 |
| HMT Boy Alex | November 1939 | Minesweeper, returned 1945 |
| HMT Boy Andrew | 1940 | Auxiliary patrol, lost in collision, Firth of Forth 9 November 1941 |
| HMT Boy Davie | 1941 | De-gaussing, returned 1944 |
| HMT Boy Jermyn | October 1939 | Auxiliary patrol, returned December 1939 |
| HMT Boy John | December 1939 | Minesweeper, returned July 1945 |
| HMT Boy Philip | October 1939 | Minesweeper, W.D. August 1943 |
| HMT Boy Ray | June 1940 | Water carrier, returned 1946 |
| HMT Boy Roy | November 1939 | Flare drifter, bombed at Dunkirk 28 May 1940 |
| HMT Boy Scout | November 1939 | Balloon barrage vessel, returned December 1944 |
| HMT Brabant | August 1939 | Minesweeper, returned December 1945 |
| HMT Brackendale | August 1939 | De-gaussing, returned 1946 |
| HMT Bracondene | August 1940 | Minesweeper August 1946 |
| HMT Braconheath | February 1940 | Dan layer, returned 1945 |
| HMT Braconhill | November 1939 | Exam, returned July 1945 |
| HMT Braconlynn | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Braconmoor | August 1939 | Minesweeper, returned August 1946 |
| HMT Braconburn | 1944 | To be block ship, lost in collision with SS LeBaron Russell Briggs off Bell Rock 30 July 1944 |
| HMT Bradman | August 1939 | Anti-submarine, bombed off Norway 25 April 1940 |
| HMT Brae Flett | January 1942 | Harbor service, lost (unknown cause?) 29 September 1943 |
| HMT Braes Flett | July 1940 | Water carrier, returned 1946 |
| HMT Braes O'Mar | March 1944 | Esso, returned November 1944 |
| HMT Braemar | December 1939 | Anti-submarine, returned 1945 |
| HMT Brakvlei | July 1940 | Minesweeper, returned June 1946 |
| HMT Brakpan | April 1943 | Minesweeper, returned November 1946 |
| HMT Branch | 1939 | Anti-submarine, returned 1945 |
| HMT Bransfield | April 1943 | Salvage vessel, returned July 1946 |
| HMT Bras D'Or | September 1939 | Minesweeper, foundered, Gulf of Saint Lawrence 19 October 1940 |
| HMT Brecon castle | August 1939 | Minesweeper, returned December 1945 |
| HMT Breme | July 1940 | Harbor service, returned December 1945 |
| HMT Breeze | July 1941 | Auxiliary patrol, sold March 1946 |
| HMT Bretwalda | 1940 | Anti-submarine, sold 1947 |
| HMT Brevik | January 1942 | Minesweeper, returned 1946 |
| HMT Brighton O'The North | November 1939 | Examination service, returned September 1945 |
| HMT Brimnes | September 1939 | Anti-submarine, sold 1945 |
| HMT British | August 1939 | Minesweeper, returned December 1945 |
| HMT British Crown | September 1939 | Mine recovery vessel, returned 1945 |
| HMT British Guiana | November 1939 | Anti-submarine, returned March 1946 |
| HMT British Honduras | December 1939 | Anti-submarine, returned January 1946 |
| HMT Broadland | 1939 | Auxiliary patrol, foundered, North Atlantic 6 June 1945 |
| HMT Brock | August 1939 | Minesweeper, sold 1945 |
| HMT Brontes | August 1939 | Anti-submarine, sold 1945 |
| HMT Bruinsvisch | July 1940 | Minesweeper, Esso, returned 1946 |
| HMT B.T.B | November 1939 | Minesweeper, returned January 1946 |
| HMT Bucephalus | 1944 | Esso, returned 1945 |
| HMT Bucentaur | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Buchans | July 1940 | Auxiliary patrol, returned August 1946 |
| HMT Buckingham | August 1939 | Minesweeper, Boom defense vessel, returned December 1945 |
| HMT Buckler | 1942 | Harbor service, returned March 1946 |
| HMT Burke | September 1939 | Minesweeper, wreck dispersal vessel, returned January 1946 |
| HMT Burnbanks | February 1940 | Dan layer, sold 1946 |
| HMT Burnhaven | August 1939 | Harbor service, returned 1945 |
| HMT Busen 3 | December 1940 | Minesweeper, Icicle 1941, returned Jan, 1946 |
| HMT Busen 7 | 1940 | Minesweeper, Silhouette 1941, Royal Norwegian Navy, Royal Hellenic Navy Acheloos 1943, returned February 1947 |
| HMT Busen 11 | 1940 | Minesweeper, Snowdrift 1941, Royal Norwegian Navy 1941, Royal Hellenic Navy Thasos 1943 |
| HMT Bush | 1940 | Auxiliary patrol, returned September 1946 |
| HMT Byng | October 1939 | Boom defense vessel, Balloon barrage vessel, returned 1946 |
C
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT C & A | February 1940 | Harbor service, returned March 1946 |
| HMT Cadella | October 1939 | Boom defense vessel, returned 1946 |
| HMT Cadorna | May 1940 | Minesweeper, returned May 1945 |
| HMT Caerphilly Castle | August 1939 | Minesweeper, sold January 1940, lost 27 January 1941 |
| HMT Caldy | December 1939 | Minesweeper, returned January 1940 |
| HMT Caliban | December 1939 | Boom defense vessel, sold December 1946 |
| HMT Calliopsis | 1941 | Minesweeper, returned January 1940 |
| HMT Calm | 1940 | Harbor service, returned 1945 |
| HMT Caliph | December 1939 | Minesweeper, returned 1945 |
| HMT Calverton | November 1939 | Minesweeper, mined off the Humber 29 November 1940 |
| HMT Calvi | September 1939 | Minesweeper, bombed off Dunkirk 29 May 1940 |
| HMT Calvinia | January 1940 | Minesweeper, returned December 1945 |
| HMT Cambrian | September 1939 | Boom defense vessel, mined off Spithead 30 May 1940 |
| HMT Cambridgeshire (FY142) | August 1939 | Anti-submarine, sold 1945 |
| HMT Campina | 1939 | Auxiliary patrol, mined off Holyhead 22 July 1940 |
| HMT Canadian Prince | September 1939 | Anti-submarine, French La Bonoise 1939, scrapped 1945 |
| HMT Cap D'Antifer | 1940 | Minesweeper, torpedoed by E-boat off the Humber 13 February 1944 |
| HMT Cap Ferrat | 1940 | Minesweeper, returned 1945 |
| HMT Cape Argona | August 1939 | Anti-submarine, sold 1945 |
| HMT Cape Barracouta | August 1939 | Auxiliary patrol, Minesweeper, returned January 1946 |
| HMT Cape Chelyuskin | August 1939 | Anti-submarine, bombed in Norway 29 April 1940 |
| HMT Cape Comorin | August 1939 | Anti-submarine, sold 1945 |
| HMT Cape Finisterre | 1940 | Anti submarine, bombed out in North Sea 2 August 1940 |
| HMT Cape Mariato | June 1940 | Anti-submarine, returned December 1945 |
| HMT Cape Melville | August 1939 | Minesweeper, returned August 1945 |
| HMT Cape Nyemetski | August 1939 | Minesweeper, returned September 1945 |
| HMT Cape Palliser | September 1939 | Anti-submarine, returned September 1945 |
| HMT Cape Passaro | September 1939 | Anti-submarine, bombed in Norway 21 May 1940 |
| HMT Cape Portland | September 1939 | Anti-submarine, armed boarding vessel, Portuguese P.5 1943-44, returned 1945 |
| HMT Cape Siretoko | September 1939 | Anti-submarine, bombed in Norway 29 April 1940 |
| HMT Cape Spartel | August 1939 | Minesweeper, bombed out in North Sea 2 February 1942 |
| HMT Cape Trafalgar | May 1940 | Auxiliary patrol, Boom defense vessel, sold January 1947 |
| HMT Cape Warwick | August 1939 | Anti-submarine, United States Navy, sold February 1946 |
| HMT Caporal Peugeot | 1940 | Auxiliary patrol, returned 1945 |
| HMT Caprice | 1940 | Exam, CAPRICORN 1943, returned July 1946 |
| HMT Capricornus | November 1939 | Auxiliary patrol, Minesweeper, mined off Milford Haven 7 October 1940 |
| HMT Capstone | June 1940 | Auxiliary patrol, Minesweeper, returned October 1945 |
| HMT Carbineer II | May 1940 | Auxiliary patrol, Boom defense vessel, returned July 1946 |
| HMT Cardiff Castle | August 1939 | Minesweeper, returned January 1946 |
| HMT Carency | 1940 | Anti-submarine, exam, sold February 1947 |
| HMT Carisbrooke | August 1939 | Minesweeper, sold 1946 |
| HMT Caroline | 1940 | Minesweeper, lost 28 April 1941 |
| HMT Carry On | December 1939 | Balloon barrage vessel, mined off Sheerness 17 December 1940 |
| HMT Cassiopeia | February 1940 | Hospital drifter, returned 1945 |
| HMT Castelnau | August 1940 | Anti-submarine, returned February 1946 |
| HMT Castle Bay | November 1939 | Minesweeper, returned July 1946 |
| HMT Castle Stuart | 1941 | Harbor service, returned 1945 |
| HMT Castleton | November 1939 | Auxiliary patrol, returned January 1940, lost 28 June 1940 |
| HMT Caswell | February 1940 | Minesweeper, returned July 1946 |
| HMT Catherine | 1939 | Auxiliary patrol, foundered off Scapa 8 June 1942 |
| HMT Caulonia | 1939 | Auxiliary patrol, Minesweeper, wrecked in Rye Bay 31 March 1943 |
| HMT Cayrian | November 1939 | Minesweeper, returned December 1945 |
| HMT Cayton Wyke | August 1939 | Anti-submarine, torpedoed by E-boat off Dover 8 July 1940 |
| HMT Cedarberg | March 1941 | Anti-submarine, returned May 1946 |
| HMT Cedric | November 1939 | Auxiliary patrol, Minesweeper, Balloon barrage vessel, returned 1945 |
| HMT Celtia | November 1939 | Auxiliary patrol, returned 1940 |
| HMT Cerisio | September 1939 | Minesweeper, sold 1945 |
| HMT Cevic | 1943 | Fuel carrier, water carrier, returned August 1944 |
| HMT Ceylonite | April 1940 | Minesweeper, returned 1946 |
| HMT Chalcedony | August 1939 | Auxiliary patrol, Minesweeper, sold 1945 |
| HMT Charde | November 1939 | Minesweeper, lost in collision off Portsmouth 21 June 1940 |
| HMT Chandos | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Charles Boyes | September 1939 | Minesweeper, mined off the east coast 25 May 1940 |
| HMT Charles Denise | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Charles Doran | 1940 | Minesweeper, returned November 1945 |
| HMT Charles Henri | July 1940 | Auxiliary patrol, returned September 1945 |
| HMT Charles Vaillant | July 1940 | Minesweeper returned March 1946 |
| HMT Chasse Marie | July 1940 | Minesweeper, returned March 1946 |
| HMT Chassiron | September 1939 | Minesweeper, returned August 1945 |
| HMT Chiltern | June 1940 | Auxiliary patrol, returned 1945 |
| HMT Choice | 1944 | Esso, foundered off Normandy 25 August 1944 |
| HMT Chorley | January 1940 | Boom defense vessel, foundered off Start Point 25 April 1942 |
| HMT Christania T Purdy | 1939 | Auxiliary patrol, Balloon barrage vessel, returned 1945 |
| HMT Christine Rose | 1940 | Exam, wrecked, coast of Argyll 10 September 1941 |
| HMT Chrysea | April 1940 | Balloon barrage vessel, returned January 1945 |
| HMT Chrysolite | August 1940 | Minesweeper, returned January 1946 |
| HMT Citron | January 1940 | Balloon barrage vessel, returned August 1944 |
| HMT City of Aberdeen | December 1939 | Auxiliary patrol, returned January 1940 |
| HMT Claesje | 1940 | Minesweeper, returned 1945 |
| HMT Claire | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Clan Mackay | 1939 | Dan layer, returned 1945 |
| HMT Clara Simonne | July 1940 | Auxiliary patrol, returned November 1945 |
| HMT Clara Sutton | 1940 | Tender, returned 1945 |
| HMT Claribelle | 1941 | Minesweeper, returned 1945 |
| HMT Clarice | 1940 | Harbor service, returned 1945 |
| HMT Clarinet | January 1940 | Boom defense vessel, returned 1946 |
| HMT Cleon | May 1940 | Balloon barrage vessel, returned 1945 |
| HMT Clevella | September 1939 | Minesweeper, returned May 1946 |
| HMT Clifton | November 1939 | Minesweeper, returned March 1946 |
| HMT Clotilde | February 1940 | Minesweeper, returned December 1945 |
| HMT Cloudarch | October 1942 | Harbor services, returned June 1943 |
| HMT Cloughstone | December 1940 | Balloon barrage vessel, returned April 1945 |
| HMT Cloughton Wyke | June 1940 | Auxiliary patrol, Minesweeper, bombed in the North Sea 2 February 1942 |
| HMT Cloverdale | November 1939 | Minesweeper, auxiliary patrol, returned December 1945 |
| HMT Clyne Castle | August 1939 | Minesweeper, wreck dispersal vessel, returned November 1945 |
| HMT Clythness | August 1939 | Minesweeper, returned July 1945 |
| HMT Cobbers | 1939 | Auxiliary patrol, bombed in the North Sea 3 March 1941 |
| HMT Cockade | November 1939 | Auxiliary patrol, water carrier, Stockade 1944, returned 1945 |
| HMT Cocker | September 1940 | Anti-submarine, lost 3 June 1942 |
| HMT Collena | January 1940 | Boom defense vessel, sold 1946 |
| HMT Comely Bank | December 1939 | Balloon barrage vessel, returned 1945 |
| HMT Comet | 1939 | Minesweeper, mined off Falmouth 30 September 1940 |
| HMT Comfort | 1939 | Dan layer, rammed in error by Lydd off Dover 29 May 1940 |
| HMT Comitatus | 1939 | Minesweeper, returned 1945 |
| HMT Commander Evans | June 1940 | Auxiliary patrol, Minesweeper, Dan layer, returned August 1945 |
| HMT Commander Holbrook | June 1940 | Auxiliary patrol, returned November 1945 |
| HMT Commander Nasmith | June 1940 | Auxiliary patrol, Minesweeper, returned May 1945 |
| HMT Commiles | August 1939 | Minesweeper, returned October 1945 |
| HMT Commodator | August 1939 | Minesweeper, returned October 1945 |
| HMT Computator | 1939 | Minesweeper, lost in collision off Normandy 21 January 1945 |
| HMT Comrades | September 1939 | Auxiliary patrol, target service, returned April 1946 |
| HMT Concertrator | August 1939 | Minesweeper, returned January 1946 |
| HMT Concordis | December 1939 | Minesweeper, returned May 1946 |
| HMT Confiance | July 1940 | Harbor service, returned 1945 |
| HMT Confide | 1 September 1940 | Harbor service, returned 1945 |
| HMT Congre | July 1940 | Minesweeper, returned January 1946 |
| HMT Coniston | November 1939 | Auxiliary patrol, Minesweeper, returned 1940 |
| HMT Conquistador | November 1939 | Auxiliary patrol, Minesweeper, lost in collision, Thames Estuary 25 November 1940 |
| HMT Consbro | January 1940 | Boom defense vessel, returned September 1945 |
| HMT Consolation | November 1939 | Minesweeper, returned September 1945 |
| HMT Constant Friend | 1940 | Minesweeper, returned 1945 |
| HMT Constant Hope | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Contender | February 1940 | Minesweeper, returned, October 1945 |
| HMT Contrive | May 1940 | Mobile wiping unit, returned February 1946 |
| HMT Controller | January 1940 | Auxiliary patrol, balloon barrage vessel, Esso, returned September 1944 |
| HMT Convallaria | April 1940 | Auxiliary patrol, returned March 1946 |
| HMT Conway | November 1939 | Auxiliary patrol, returned 1940 |
| HMT Conway Castle | August 1939 | Minesweeper, returned October 1945 |
| HMT Copious | January 1940 | Auxiliary patrol, returned August 1945 |
| HMT Coral Bank | 1940 | Minesweeper, returned January 1946 |
| HMT Corcyra | November 1940 | Auxiliary patrol, water carrier, sold August 1946 |
| HMT Cordela | August 1939 | Minesweeper, sold 1946 |
| HMT Corena | August 1939 | Minesweeper, sold April 1946 |
| HMT Cor Jesu | 1940 | Balloon barrage vessel, bombed off Alnmouth 8 June 1941 |
| HMT Corn Rig | 1941 | Harbor service, returned 1945 |
| HMT Cornucopia | 1940 | Harbor service, returned 1944 |
| HMT Coronatia | 1939 | Boom gate vessel, returned 1944 |
| HMT Cortina | November 1939 | Auxiliary patrol, Minesweeper, lost in collision off the Humber 7 December 1940 |
| HMT Coruscation | 1940 | Auxiliary patrol, returned 1945 |
| HMT Coryphene | 1944 | Esso, returned 1945 |
| HMT Cosmea | 1942 | Harbor service, returned 1945 |
| HMT Cotsmuir | February 1940 | Minesweeper, returned November 1945 |
| HMT Count | 1940 | Boom defense vessel, returned 1945 |
| HMT Courser | September 1940 | Minesweeper, Cavalcade 1945, returned December 1946 |
| HMT Couronne | July 1940 | Auxiliary patrol water carrier, returned 1947 |
| HMT Courtier | August 1939 | Minesweeper, returned July 1945 |
| HMT Coventry City | September 1939 | Anti-submarine, United States Navy, returned August 1945 |
| HMT Craftsman | August 1940 | Minesweeper, Dan layer, returned October 1944 |
| HMT Craig Alvah | December 1939 | Harbor service, returned December 1945 |
| HMT Craig Bo | 1940 | Examination service, returned 1944 |
| HMT Craigcoilleach | August 1940 | Minesweeper, returned July 1945 |
| HMT Craigentinny | 1941 | Examination service, returned 1945 |
| HMT Craig Island | November 1939 | Boom defense vessel, returned November 1944 |
| HMT Craig Millar | January 1940 | Minesweeper, returned November 1945 |
| HMT Craig Roy | December 1939 | Anti-submarine, returned October 1945 |
| HMT Crammond Island | November 1939 | Boom defense vessel, bombed off St Abb's Head 2 April 1941 |
| HMT Cranefly | August 1939 | Minesweeper, returned 1945 |
| HMT Crannock | November 1939 | Anti-submarine, returned January 1946 |
| HMT Crassula | October 1939 | Minesweeper, returned December 1946 |
| HMT Creagh Mhor | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Crestflower | August 1939 | Minesweeper, bombed off Portsmouth 19 July 1940 |
| HMT Crevette | November 1939 | Auxiliary patrol, Esso, returned October 1944 |
| HMT Cuckoo | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Cuirass | September 1939 | Boom defense vessel, sold 1945 |
| HMT Cumulus | September 1939 | Harbor service, returned 1945 |
| HMT Curtana | August 1939 | Minesweeper, returned October 1945 |
| HMT Cyelse | August 1940 | Water carrier, returned March 1946 |
| HMT Cyriel Verschaeve | June 1940 | Harbor service, returned August 1945 |
D
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Dagny | 1942 | Boom defense vessel, returned 1944 |
| HMT Daisy | January 1941 | Harbor service, lost in a storm in the Clyde 25 April 1942 |
| HMT Daisy | 1940 | Harbor service, returned 1945 |
| HMT Daisy II | September 1939 | Harbor service, returned November 1945 |
| HMT Daisy II | 1940 | Harbor service, returned 1945 |
| HMT Daisy Bank | May 1940 | Harbor service, returned July 1944 |
| HMT Dale Castle | May 1940 | Auxiliary patrol, target service, returned March 1946 |
| HMT Dalmatia | September 1939 | Minesweeper, Dan layer, sold April 1946 |
| HMT Damito | August 1939 | Minesweeper, store carrier, returned January 1946 |
| HMT Dandolo | 1944 | Esso, returned 1945 |
| HMT Dane | January 1940 | Minesweeper, returned January 1946 |
| HMT Daneman | August 1939 | Anti-submarine, lost in collision with submerged ice, North Atlantic 8 May 1943 |
| HMT Daniel Clowden | August 1939 | Minesweeper, returned October 1945 |
| HMT Darcy Cooper | 1940 | Exam, bombed at Harwich 9 April 1941 |
| HMT Darnaway | December 1939 | Harbor service, returned September 1945 |
| HMT Darnett Ness | August 1939 | Minesweeper, returned September 1945 |
| HMT Darogah | December 1939 | Minesweeper, mined in the Thames Estuary 27 January 1941 |
| HMT Darthema | 1939 | Minesweeper, returned 1945 |
| HMT Darwen | November 1939 | Auxiliary patrol, Minesweeper, returned February 1946 |
| HMT David Haigh | September 1939 | Boom defense vessel, returned June 1946 |
| HMT David Ogilvie | September 1939 | Minesweeper, returned July 1946 |
| HMT Davy | August 1939 | Anti-submarine, sold 1945 |
| HMT Daybreak | 1941 | Minesweeper, returned 1945 |
| HMT Daylight | 1941 | Minesweeper, returned 1945 |
| HMT Dayspring | 1940 | Auxiliary patrol, mreturned August 1946 |
| HMT Debra Huysenne | July 1940 | Balloon barrage vessel, returned August 1946 |
| HMT De Drie Gezusters | July 1940 | Auxiliary patrol, returned 1945 |
| HMT Defensor | 1940 | Harbor service, returned January 1946 |
| HMT De Heilige Familie | June 1940 | Harbor service, returned September 1945 |
| HMT De Hoop | July 1940 | Auxiliary patrol, Liege 1941, returned September 1945 |
| HMT De Hoop | 1940 | Balloon barrage vessel, returned 1945 |
| HMT De La Pole | May 1940 | Auxiliary patrol, Minesweeper, returned December 1945 |
| HMT Delila | June 1940 | Auxiliary patrol, returned January 1946 |
| HMT Delphin II | 1940 | Exam, returned January 1946 |
| HMT Delphinus | November 1939 | Minesweeper, sold 1945 |
| HMT Deo Volante | 1940 | Auxiliary patrol, returned 1945 |
| HMT Derby County | August 1939 | Anti-submarine, sold 1945 |
| HMT De Roza | 1940 | Auxiliary patrol, returned 1945 |
| HMT Dervish | June 1940 | Minesweeper, mined off the Humber 9 September 1940 |
| HMT Desiree | November 1939 | Minesweeper, mined in the Thames Estuary 16 January 1941 |
| HMT Destinn | January 1940 | Auxiliary patrol, returned August 1945 |
| HMT Devon County | November 1939 | Minesweeper, mined in the Thames Estuary 1 July 1941 |
| HMT Devotion | 1941 | Water carrier, returned 1945 |
| HMT Dew | November 1940 | Minesweeper, fire float, returned May 1946 |
| HMT Dewy Eve | January 1940 | Minesweeper, lost in collision at Scapa 9 June 1940 |
| HMT Dewy Rose | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Dhoon | May 1940 | Auxiliary patrol, Minesweeper, Dhoon Glen 1943, returned November 1945 |
| HMT Diana Lucie | 1940 | Auxiliary patrol, mobile wiping unit, returned 1945 |
| HMT Dick Whittington | May 1940 | De-gaussing vessel, returned October 1945 |
| HMT Digit | 1940 | Boom defense vessel, sold 1946 |
| HMT Diligent | 1940 | Balloon barrage vessel, returned 1940 |
| HMT Dilimer | 1940 | Auxiliary patrol, returned 1945 |
| HMT Dirkje | 1940 | Minesweeper, returned 1945 |
| HMT Disa | September 1939 | Minesweeper, returned May 1940 |
| HMT Doctor Lee | December 1939 | Boom defense vessel, returned November 1944 |
| HMT Dolfijn | 1940 | Minesweeper, Goeree 1943, returned 1945 |
| HMT Dolores | January 1940 | Dan layer, sold 1946 |
| HMT Domino | March 1940 | Minesweeper, sold July 1945 |
| HMT Donna Nook | June 1940 | Auxiliary patrol, Minesweeper, lost in collision, North Sea 25 September 1943 |
| HMT Doonie Braes | May 1940 | Auxiliary patrol, returned January 1945 |
| HMT Doorie Brae | November 1939 | Auxiliary patrol, returned 1945 |
| HMT Dorienta | September 1939 | Minesweeper, returned May 1946 |
| HMT Dorileen | January 1940 | Boom defense vessel, sold May 1946 |
| HMT Dorinda | August 1939 | Minesweeper, returned November 1945 |
| HMT Dorothy Gray | July 1940 | Auxiliary patrol, returned December 1944 |
| HMT Dorothy Lambert | February 1940 | Minesweeper, returned February 1946 |
| HMT Dourswold | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Drainie | 1940 | Water carrier, sold 1947 |
| HMT Drangey | August 1939 | Anti-submarine, sold 1946 |
| HMT Dreel Castle | November 1939 | Minesweeper, returned 1940 |
| HMT Drobak | 1940 | Minesweeper, returned 1946 |
| HMT Dromio | August 1939 | Minesweeper, lost in collision off Whitby 22 December 1939 |
| HMT Drummer | August 1939 | Minesweeper, mined off Brightlingsea 4 August 1940 |
| HMT Drummer Boy | November 1939 | Minesweeper, returned August 1945 |
| HMT Duchesse De Brabant | July 1940 | Anti-submarine, returned 1945 |
| HMT Dulcibelle | November 1939 | Auxiliary patrol, returned November 1944 |
| HMT Dundarg | 1940 | Boom tender, returned 1945 |
| HMT Dunedin | May 1940 | Examination service, returned January 1945 |
| HMT Dungeness | May 1940 | Auxiliary patrol, bombed off coast of Norfolk 15 November 1940 |
| HMT Dunleith | September 1939 | Store hulk, returned February 1946 |
| HMT Dunraven Castle | March 1940 | Minesweeper, returned September 1945 |
| HMT Dusk | 1941 | Minesweeper, sold 1946 |
| HMT Durraween | 1939 | Minesweeper, returned 1946 |
| HMT Duthies | August 1939 | Bombed at Montrose 25 October 1940 |
| HMT D. W. Fitzgerald | August 1940 | Minesweeper, returned January 1945 |
E
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Eadwine | October 1940 | Auxiliary patrol, returned March 1946 |
| HMT Eager | November 1939 | Minesweeper, returned October 1944 |
| HMT Earl Essex | November 1939 | Minesweeper, returned February 1946 |
| HMT Earl Kitchener | August 1939 | Minesweeper, returned April 1946 |
| HMT East Coast | 1944 | Esso, returned 1945 |
| HMT Eastcoates | August 1939 | Minesweeper, returned 1945 |
| HMT Eastern Dawn | 1940 | De-gaussing vessel, returned 1946 |
| HMT Easter Rose | 1940 | Balloon barrage vessel, submarine tender, returned 1945 |
| HMT Ebor Abbey | January 1940 | Auxiliary patrol, returned February 1946 |
| HMT Ebor Jewel | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Ebor Wyke | August 1939 | Minesweeper, sunk by U-979 off Iceland 2 May 1945 |
| HMT Eccleshill | February 1940 | Balloon barrage vessel, returned January 1945 |
| HMT Edith M Purdy | February 1940 | Balloon barrage vessel, returned May 1945 |
| HMT Edouard | July 1940 | Auxiliary patrol, lost 22 February 1941 |
| HMT Vlaanderen | September 1939 | Lost by unknown cause off Iceland? |
| HMT Edwardian | August 1939 | Minesweeper, sold January 1946 |
| HMT Edward Walmsley | May 1940 | Minesweeper, returned July 1946 |
| HMT Edwina | 1941 | Auxiliary patrol, returned May 1945 |
| HMT Egeland | November 1939 | Dan layer, wrecked, coast of Palestine 29 November 1941 |
| HMT Egeria | January 1940 | Minesweeper, returned January 1945 |
| HMT Eileen Duncan | November 1939 | Minesweeper, bombed at North Shields 30 September 1941 |
| HMT Eileen Emma | September 1939 | Auxiliary patrol, returned April 1946 |
| HMT Elbury | February 1940 | Minesweeper, returned July 1945 |
| HMT Eldorado | May 1940 | Minesweeper, returned November 1941 |
| HMT Electra II | November 1939 | Auxiliary patrol, returned February 1946 |
| HMT Elena | 1940 | Minesweeper, returned January 1945 |
| HMT Elisabeth Guilbert | 1939 | Auxiliary patrol, returned 1945 |
| HMT Elizabeth Angela | June 1940 | Minesweeper, bombed in The Downs 13 August 1940 |
| HMT Elizabeth Therese | October 1939 | Minesweeper, lost by unknown cause? 4 July 1945 |
| HMT Elk (1902) | December 1939 | Auxiliary patrol, Minesweeper, mined off Plymouth 27 November 1940 |
| HMT Eloquent | December 1939 | Minesweeper, returned 1946 |
| HMT Else Rykens | May 1940 | Anti-submarine, returned November 1945 |
| HMT Elsie Cam | January 1940 | Minesweeper, returned January 1946 |
| HMT Elsie & Nellie | 1940 | Balloon barrage vessel, returned February 1945 |
| HMT Elysian Dawn | 1940 | Harbor service, returned 1945 |
| HMT Embrace | November 1939 | HDPC, wrecked in Loch Alsh 2 August 1940 |
| HMT Emillion | November 1939 | Minesweeper, mined, Thames Estuary 24 October 1941 |
| HMT Empyrian | November 1939 | Minesweeper, store carrier, returned January 1945 |
| HMT En Avant | 1940 | Minesweeper, returned 1945 |
| HMT Enterprising | May 1940 | De-gaussing vessel, sold 1947 |
| HMT Enzie | September 1939 | Harbor service, returned 1945 |
| HMT Ephretah | 1940 | Anti-submarine, returned 1945 |
| HMT Epine | September 1939 | Minesweeper, returned January 1946 |
| HMT Equerry | August 1939 | Minesweeper, returned April 1945 |
| HMT Eridanus | April 1944 | Esso, returned November 1944 |
| HMT Frillus | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Erimo | September 1939 | Minesweeper, returned 1945 |
| HMT Erin | 1940 | Anti-submarine, blown up by Italian frogmen at Gibraltar 18 January 1942 |
| HMT Erith | 1940 | Minesweeper, returned 1945 |
| HMT Erna | May 1940 | Boom defense vessel, returned 1945 |
| HMT Eroican | April 1940 | Minesweeper, Esso, returned February 1945 |
| HMT Escallonia | 1940 | Auxiliary patrol, returned 1944 |
| HMT Ethel Taylor | 1939 | Auxiliary patrol, mined off the Tyne 22 November 1940 |
| HMT Etoile Polaire | 1940 | Dan layer, returned 1945 |
| HMT Etruria | May 1940 | Boom defense vessel, returned February 1946 |
| HMT Etruscan | November 1939 | Auxiliary patrol, Minesweeper, Esso, returned November 1944 |
| HMT Euclase | February 1940 | Minesweeper, returned April 1946 |
| HMT Eunice & Nellie | December 1939 | Minesweeper, torpedo recovery vessel, returned ? |
| HMT Evelina | November 1939 | Auxiliary patrol, mined off the Tyne 16 December 1940 |
| HMT Eveline | July 1940 | Minesweeper, lost in collision, Milford Haven 27 January 1942 |
| HMT Evelyn Rose | May 1940 | Auxiliary patrol, Minesweeper, returned 1945 |
| HMT Evening Primrose | 1939 | Minesweeper, returned 1945 |
| HMT Everton | December 1939 | Dan layer, auxiliary patrol, returned March 1946 |
| HMT Evesham | December 1939 | Auxiliary patrol, lost 27 May 1941, salved & scrapped April 1945 |
| HMT Ewald | June 1940 | Minesweeper, returned 1945 |
| HMT Ex Fortis | December 1939 | Balloon barrage vessel, returned September 1945 |
| HMT Exchequer | May 1940 | Exam., returned April 1946 |
| HMT Exyhane | November 1939 | Minesweeper, returned December 1945 |
F
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Fair Breeze | September 1939 | Auxiliary patrol, wrecked off Dunkirk 1 June 1940 |
| HMT Fairhaven | 1940 | Balloon barrage vessel, foundered, N. Atlantic 5 September 1944 |
| HMT Fairway | May 1940 | Auxiliary patrol, Minesweeper, returned March 1946 |
| HMT Fair Weather | January 1940 | Auxiliary patrol, returned December 1945 |
| HMT Fairy Knowe | November 1939 | Minesweeper, target service, returned December 1945 |
| HMT Faithful Star | September 1939 | Auxiliary patrol, returned March 1946 |
| HMT Falk | March 1941 | Anti-submarine, returned October 1946 |
| HMT Farsund | July 1940 | Anti-submarine, returned 1945 |
| HMT Favour | 1940 | Auxiliary patrol, returned 1945 |
| HMT Fawn | January 1940 | Anti-submarine, returned 1945 |
| HMT Feaco | October 1939 | Minesweeper, returned November 1945 |
| HMT Fear Not | 1940 | Auxiliary patrol, store carrier, Exam, returned 1945 |
| HMT Feasible | November 1939 | Minesweeper, returned August 1945 |
| HMT Fee Des Eaux | September 1940 | Auxiliary patrol, returned January 1946 |
| HMT Fellowship | November 1939 | Minesweeper, returned 1946 |
| HMT Fermern | 1941 | Minesweeper, returned 1946 |
| HMT Fenella | April 1940 | Exam, returned 1945 |
| HMT Fentonian | November 1939 | Minesweeper, Esso, returned February 1945 |
| HMT Fertile Vale | December 1939 | Exam, lost in collision off the Tay 19 July 1941 |
| HMT Fezenta | November 1939 | Minesweeper, returned November 1945 |
| HMT Fidget | November 1939 | Mine recovery vessel, Auxiliary patrol, air/sea rescue, sold January 1946 |
| HMT Fieldgate | 1940 | Boom gate vessel, returned 1945 |
| HMT Fifeshire | September 1939 | Anti-submarine, bombed off Copinsay 20 February 1940 |
| HMT Filey Bay | August 1939 | Minesweeper, returned March 1945 |
| HMT Finesse | 1940 | Minesweeper, sold 1946 |
| HMT Finlande | September 1940 | To Ministry of War Transport, April 1941 |
| HMT Fintray | February 1940 | Minesweeper, returned January 1945 |
| HMT Firefly | September 1939 | Minesweeper, returned October 1945 |
| HMT Firmament | May 1941 | Minesweeper, wrecked near Alexandria 30 May 1944 |
| HMT Fisher Boy | September 1939 | Mine recovery vessel, sold July 1946 |
| HMT Fisher Girl | 1940 | Mobile wiping unit, bombed off Falmouth 25 November 1941 |
| HMT Fisher Lad | December 1939 | Anti-submarine, returned November 1945 |
| HMT Fisher Queen | October 1940 | HDPC, returned September 1946 |
| HMT Flanders | August 1939 | Minesweeper, returned December 1945 |
| HMT Flandre | June 1940 | Auxiliary patrol, Minesweeper, returned December 1945 |
| HMT Flash | April 1941 | Minesweeper, returned November 1945 |
| HMT Fleming | August 1939 | Minesweeper, bombed, Thames Estuary 27 July 1940 |
| HMT Flicker | May 1941 | Minesweeper, returned December 1945 |
| HMT Flixton | August 1939 | Exam, returned July 1946 |
| HMT Florence Brierley | January 1940 | Boom defense vessel, sold August 1946 |
| HMT Florida | December 1940 | Minesweeper, returned March 1946 |
| HMT Florio | August 1939 | Minesweeper, returned April 1945 |
| HMT Flow | September 1939 | Exam, returned March 1946 |
| HMT Flush | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Flying Admiral | 1940 | Auxiliary patrol |
| HMT Flying Wing | November 1939 | Anti-submarine, Minesweeper, sold 1946 |
| HMT Foamcrest | June 1940 | Auxiliary patrol, sold March 1946 |
| HMT Fontenoy | August 1939 | Minesweeper, bombed in the North Sea 19 November 1940 |
| HMT Force | February 1940 | Minesweeper, bombed in the North Sea 27 June 1941 |
| HMT Forecast | November 1939 | Auxiliary patrol, lost by unknown cause in the Clyde 10 April 1944 |
| HMT Forerunner | November 1939 | Minesweeper, lost in collision, Thames Estuary 14 October 1941 |
| HMT Foresight | 1941 | Harbor service, returned 1946 |
| HMT Forfeit | January 1940 | Auxiliary patrol, returned June 1946 |
| HMT Fort Robert | November 1939 | Minesweeper, returned August 1945 |
| HMT Fort Rose | May 1940 | Auxiliary patrol, returned 1945 |
| HMT Fort Royal | August 1939 | Minesweeper, bombed off Aberdeen 9 February 1940 |
| HMT Fort Ryan | September 1939 | Boom defense vessel, boom gate vessel, returned December 1944 |
| HMT Fortuna | June 1940 | Auxiliary patrol, bombed off St. Abbs Head 3 April 1941 |
| HMT Foss | January 1940 | Boom defense vessel, returned July 1946 |
| HMT Franc Tireur | May 1940 | Auxiliary patrol, Minesweeper, torpedoed by E-boat off Harwich 25 September 1943 |
| HMT Fragrant | 1941 | Harbor service, returned 1945 |
| HMT Francolin | June 1940 | Auxiliary patrol, bombed off Cromer 12 November 1941 |
| HMT Freres Coquelin | July 1940 | Minesweeper, returned February 1946 |
| HMT Friarage | September 1939 | Minesweeper, exam, Auxiliary patrol, returned December 1945 |
| HMT Friendly Girls | September 1939 | Base ship Fox 1940-42, returned October 1945 |
| HMT Friesland | 1940 | Minesweeper, returned 1945 |
| HMT Frons Olivae | November 1939 | Mine recovery vessel, returned 1945 |
| HMT Full Moon | May 1941 | Minesweeper, returned May 1946 |
| HMT Furze | 1941 | Water carrier, returned 1945 |
| HMT Futurist | 1940 | Minesweeper, 1944 |
| HMT Flydea | September 1939 | Minesweeper, returned Dec, 1945 |
G
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Gabrielle Denise | July 1940 | Minesweeper, target service, returned 1945 |
| HMT Gabrielle-Maria | 1940 | Minesweeper, Channel Fire 1942, returned 1946 |
| HMT Gadfly | August 1939 | Minesweeper, returned September 1945 |
| HMT Gadra | November 1939 | Auxiliary patrol, returned January 1940, lost 6 January 1941 |
| HMT Gallinule | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Galvani | June 1940 | Auxiliary patrol August 1945 |
| HMT Garola | November 1939 | Minesweeper, store carrier, returned May 1946 |
| HMT Gaston Riviere | 1940 | Minesweeper, returned 1946 |
| HMT Gaul | September 1939 | Anti-submarine, bombed off Norway 3 May 1940 |
| HMT Gava | November 1939 | Auxiliary patrol, target service, returned June 1946 |
| HMT Gellyburn | September 1939 | Water carrier, returned April 1945 |
| HMT Gemma | 1941 | Minesweeper, sold 1949 |
| HMT General Birdwood | August 1939 | Minesweeper, Esso, sold May 1946 |
| HMT General Botha | July 1940 | Minesweeper, returned November 1945 |
| HMT General Foch | 1940 | Auxiliary patrol, returned 1946 |
| HMT General Leman | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Genius | October 1939 | Minesweeper, returned November 1945 |
| HMT Geordie | December 1939 | Minesweeper, harbor service, returned May 1946 |
| HMT George & Albert | December 1939 | Minesweeper, returned January 1946 |
| HMT George Adgell | June 1940 | Auxiliary patrol, Minesweeper, returned January 1946 |
| HMT George Baker | September 1939 | Harbor service, returned 1945 |
| HMT George Bligh | September 1939 | Boom defense vessel, returned December 1945 |
| HMT George Cousins | August 1939 | Minesweeper, returned July 1945 |
| HMT George D Irvin | May 1940 | Boom defense vessel, returned July 1945 |
| HMT George Robb | August 1939 | Minesweeper, sold January 1946 |
| HMT George R Purdy | August 1939 | Exam, returned October 1944 |
| HMT Georgette | November 1939 | Minesweeper, returned May 1946 |
| HMT Gerberdina Johanna | 1940 | Minesweeper, returned 1945 |
| HMT Germiston | August 1941 | Minesweeper, returned May 1946 |
| HMT Gervais Rentoul | November 1939 | Flare drifter, auxiliary patrol, returned May 1946 |
| HMT G. G. Baird | 1941 | Harbor service, returned 1946 |
| HMT Gilbert Eugene | 1940 | Auxiliary patrol, mine tender, returned May 1946 |
| HMT Gillian | August 1939 | Exam, returned August 1945 |
| HMT Gilt Edge | November 1939 | Minesweeper, Dan layer, returned August 1945 |
| HMT Gippsland | 1942 | Auxiliary patrol, sold November 1946 |
| HMT Girafe | 1940 | Boom defense vessel, returned 1945 |
| HMT Girard | June 1940 | Boom defense vessel, sold January 1947 |
| HMT Girl Ellen | December 1939 | Auxiliary patrol, returned March 1946 |
| HMT Girl Ena | 1941 | Harbor service, returned 1945 |
| HMT Girl Ethel | May 1940 | Mobile wiping unit, returned April 1945 |
| HMT Girl Glady's | November 1939 | Flare drifter, auxiliary patrol, exam, returned February 1946 |
| HMT Girl Lizzie | May 1940 | Harbor service, returned June 1946 |
| HMT Girl Margaret | November 1939 | Minesweeper, Boom defense vessel, returned March 1946 |
| HMT Girl Minna | 1940 | Target service, returned 1945 |
| HMT Girl Nancy | 1940 | Minesweeper, Auxiliary patrol, returned January 1946 |
| HMT Girl Pamela | November 1939 | Flare drifter, lost in cllision off Dunkirk 29 May 1940 |
| HMT Girl Pat | 1940 | Minesweeper, auxiliary patrol, returned 1945 |
| HMT Girl Violet | March 1940 | Exam returned November 1945 |
| HMT Girl Winifred | December 1939 | Auxiliary patrol, returned December 1945 |
| HMT Givenchy | 1940 | Minesweeper, returned 1945 |
| HMT Glacier | May 1940 | Auxiliary patrol, returned June 1944 |
| HMT Gladys | November 1939 | Boom defense vessel, returned April 1946 |
| HMT Glatian | November 1939 | Auxiliary patrol, returned 1945 |
| HMT Gleam | 1941 | Harbor service, lost in collision in the Clyde area 15 June 1944 |
| HMT Gleam On | December 1939 | Minesweeper, exam, returned December 1945 |
| HMT Glen Albyn | December 1939 | Auxiliary patrol, mined in Loch Ewe 23 December 1939 |
| HMT Glen Heather | November 1939 | Minesweeper, returned November 1945 |
| HMT Glen Kidston | August 1939 | Minesweeper, returned July 1945 |
| HMT Gloamin | December 1939 | Minesweeper, returned March, 1945 |
| HMT Gloria | February 1940 | Balloon barrage vessel, returned September 1944 |
| HMT Glow | December 1939 | Minesweeper, returned November 1945 |
| HMT Go Ahead | 1939 | Minesweeper, lost in collision off Sheerness 18 November 1940 |
| HMT Golden Chance | 1941 | FAA safety vessel, returned January 1946 |
| HMT Golden Dawn | February 1940 | Harbor service, lost by unknown cause in the Clyde? 4 April 1940 |
| HMT Golden Effort | December 1939 | Minesweeper, lost by unknown cause in the Clyde? 23 September 1943 |
| HMT Golden Emblem | January 1940 | Auxiliary patrol, returned December 1945 |
| HMT Golden Gift | November 1939 | Flare drifter, Auxiliary patrol, lost in collision off Oban 6 April 1943 |
| HMT Golden Harvest | September 1939 | Minesweeper, returned June 1946 |
| HMT Golden Line | 1941 | Harbor service, returned 1946 |
| HMT Golden Miller | November 1939 | Auxiliary patrol, returned September 1945 |
| HMT Golden News | November 1939 | Minesweeper, returned March 1946 |
| HMT Golden Sheaf | 1940 | Harbor service, returned July 1945 |
| HMT Golden Sunbeam | November 1939 | Flare drifter, Auxiliary patrol, lost in collision of Dungeness 19 August 1943 |
| HMT Golden Thyme | 1939 | Auxiliary patrol, returned 1945 |
| HMT Golden View | October 1939 | Minesweeper, returned March 1946 |
| HMT Golden West | 1941 | Harbor service, returned 1945 |
| HMT Golden West | October 1940 | De-gaussing, lost 15 January 1945 |
| HMT Good Will | January 1940 | Auxiliary patrol, returned 1946 |
| HMT Goolgwai | October 1939 | Minesweeper, returned 1946 |
| HMT Goonambee | August 1940 | Minesweeper, returned 1944 |
| HMT Goorangai | October 1939 | Minesweeper, lost in collision with SS Duntroon off Port Phillip 20 November 1940 |
| HMT Goosander | November 1939 | Water carrier, Esso, returned February 1946 |
| HMT Gorse | December 1939 | Anti-submarine, returned November 1945 |
| HMT Goth | August 1939 | Minesweeper, sold November 1945 |
| HMT Goulding | 1940 | Minesweeper, sold May 1946 |
| HMT Gowan | December 1939 | Exam, returned April 1945 |
| HMT Gowan Craig | December 1939 | Minesweeper, returned June 1946 |
| HMT Gowan Hill | August 1939 | Harbor service, bombed in the Clyde 7 May 1941 |
| HMT Graff Van Vlanderen | September 1940 | Boom defense vessel, returned April 1945 |
| HMT Grampian | August 1939 | Minesweeper, returned March 1946 |
| HMT Grateful | 1939 | Auxiliary patrol, mine recovery vessel, returned February 1946 |
| HMT Great Admiral | May 1940 | Auxiliary patrol, returned June 1945 |
| HMT Greenfly | September 1939 | Anti-submarine, sold 1945 |
| HMT Green Howard | August 1939 | Minesweeper, returned March 1946 |
| HMT Green Pastures | December 1939 | Minesweeper, returned November 1945 |
| HMT Gregory | August 1939 | Minesweeper, returned July 1945 |
| HMT Gribb | June 1941 | Minesweeper, returned April 1946 |
| HMT Grimsby Town | August 1939 | Anti-submarine, returned November 1945 |
| HMT Grimstad | July 1940 | Minesweeper, returned January 1946 |
| HMT Grimwood | May 1940 | Minesweeper, returned May 1946 |
| HMT Groenland | 1940 | To MoWT 1941 |
| HMT Grosmont Castle | February 1940 | Minesweeper, returned February 1946 |
| HMT Guide Gazelle | May 1940 | Balloon barrage vessel, returned November 1946 |
| HMT Guide On | November 1939 | Minesweeper, returned February 1946 |
| HMT Guide Us | 1940 | Salvage vessel, returned November 1942 |
| HMT Guiding Light | December 1939 | Anti-submarine, returned June 1945 |
| HMT Gula | 1940 | Dan layer, harbor service, returned 1945 |
| HMT Gulfoss | August 1939 | Minesweeper, mined in the Channel 9 March 1941 |
| HMT Gunner | September 1939 | Minesweeper, Dan layer, returned February 1946 |
| HMT Gvas II | June 1940 | Minesweeper, returned June 1946 |
| HMT Gwenllian | November 1939 | Minesweeper, returned January 1946 |
| HMT Gwmaho | November 1939 | Boom defense vessel, returned 1946 |
H
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Haarlem (FY306) | June 1940 | Anti-submarine, returned May 1946 |
| HMT Hailstorm | May 1941 | Minesweeper, Dan layer, returned September 1945 |
| HMT Hammond | August 1939 | Harbor service, returned January 1944 |
| HMT Hampshire | September 1939 | Anti-submarine, lost 25 April 1940 |
| HMT Handsome | January 1940 | Anti-submarine |
| HMT Harlech Castle | February 1940 | Harbor service, returned September 1945 |
| HMT Harmony | 1940 | Minesweeper, lost in collision off Invergordon 15 November 1941 |
| HMT Harpoon | March 1943 | Training vessel, returned December 1945 |
| HMT Harry Eastick | October 1940 | Harbor service, returned December 1945 |
| HMT Harry Melling | August 1939 | Minesweeper, returned July 1945 |
| HMT Harstad | July 1940 | Minesweeper, torpedoed by E-boat in the Channel 27 July 1943 |
| HMT Harvest Gleaner | November 1939 | Minesweeper, bombed off the eastcoast 28 October 1940 |
| HMT Harvest Hope | June 1940 | Auxiliary patrol, returned 1945 |
| HMT Harvest Moon | December 1939 | Expended as block ship, 9 September 1940 |
| HMT Harvest Reaper | December 1939 | Minesweeper, harbor service, returned November 1946 |
| HMT Hatano | September 1939 | Minesweeper, returned May 1946 |
| HMT Hatsuse | August 1939 | Minesweeper, returned August 1945 |
| HMT Haug I | December 1940 | Minesweeper, returned June 1946 |
| HMT Hauken | May 1940 | Minesweeper, returned March 1946 |
| HMT Hav | March 1940 | Minesweeper, returned 1945 |
| HMT Hayburne Wyke | May 1940 | Auxiliary patrol, Minesweeper, sunk by U-boat off Ostend 2 January 1945 |
| HMT Heathbank | April 1940 | Transport, returned May 1945 |
| HMT Heather Sprig | April 1940 | Balloon barrage vessel, harbor service, returned August 1946 |
| HMT Heatherry Brae | October 1940 | Balloon barrage vessel, returned 1944 |
| HMT Hektor | July 1940 | Minesweeper, returned June 1946 |
| HMT Hector 7 | 1940 | Minesweeper, returned 1945 |
| HMT Hektor Frans | October 1940 | Auxiliary patrol, returned October 1945 |
| HMT Helen Slater | 1941 | Harbor service, returned 1945 |
| HMT Helen West | 1939 | Auxiliary patrol, returned 1945 |
| HMT Helier II | March 1940 | Anti-submarine, returned October 1945 |
| HMT Helvetia | June 1940 | Auxiliary patrol, Minesweeper, returned September 1946 |
| HMT Hendrick Conscience | June 1940 | Auxiliary patrol, to MoWT December 1942 |
| HMT Henriette | July 1940 | Auxiliary patrol, Minesweeper, mined off the Humber 26 December 1941 |
| HMT Hercules | 1940 | Minesweeper, returned January 1946 |
| HMT Herdis | June 1940 | Balloon barrage vessel, returned 1945 |
| HMT Heroine | June 1940 | Minesweeper, Esso, returned November 1944 |
| HMT Heron | November 1939 | Auxiliary patrol, returned January 1940, lost 12 July 1942 |
| HMT Hertfordshire | 1939 | Anti-submarine, United States Navy, returned 1945 |
| HMT High Tide | August 1940 | Exam, foundered off the north coast of Wales 30 March 1945 |
| HMT Hilda Cooper | September 1939 | Exam, returned October 1944 |
| HMT Hildina | August 1939 | Minesweeper, returned April 1946 |
| HMT Hinnoy | April 1941 | Minesweeper, returned January 1946 |
| HMT H. J. Bull | 1940 | Auxiliary patrol, Namsos 1942, returned 1946, |
| HMT Hollydale | May 1940 | Exam, returned 1945 |
| HMT Hollyrood | December 1939 | Auxiliary patrol, returned January 1940 |
| HMT Honeydew | December 1939 | Harbor service, returned 1946 |
| HMT Honingsvaag | April 1940 | Auxiliary patrol, returned 1945 |
| HMT Honjo | 1939 | Minesweeper, blown up by Italian frogmen at Gibraltar 18 January 1942 |
| HMT Horten | July 1940 | Anti-submarine, air/sea rescue, returned 1945 |
| HMT Hortensia | July 1940 | Minesweeper, returned November 1945 |
| HMT Hosanna | November 1939 | Minesweeper, returned November 1944 |
| HMT Hoverfly | 1939 | Minesweeper, returned January 1945 |
| HMT Huddersfield Town | 1939 | Anti-submarine, sold 1945 |
| HMT High Walpole | August 1939 | Anti-submarine sold April 1946 |
| HMT Humphrey | October 1939 | Minesweeper, returned August 1944 |
| HMT Hval V | July 1940 | Minesweeper, returned March 1946 |
| HMT Hyperion | 1940 | Auxiliary patrol, returned 1944 |
I
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Ibis I | August 1940 | Balloon barrage vessel, returned May 1945 |
| HMT Ibis II | November 1943 | Harbor service, Esso, returned 1945 |
| HMT Ijuin | August 1939 | Minesweeper, returned January 1946 |
| HMT Imbat | 1940 | Harbor service, lost in collision at Scapa 4 February 1941 |
| HMT Imelda | December 1939 | Boom defense vessel, returned January 1946 |
| HMT Imhoff | July 1941 | Minesweeper, returned May 1946 |
| HMT Immortelle | November 1941 | Minesweeper, returned December 1946 |
| HMT Impala | November 1940 | Auxiliary patrol, returned April 1946 |
| HMT Imperia | November 1939 | Boom gate vessel, returned November 1945 |
| HMT Imperialist | August 1939 | Anti-submarine, returned October 1945 |
| HMT Inchgower | November 1939 | Minesweeper, returned February 1946 |
| HMT Indian Star | October 1939 | Anti-submarine, returned October 1945 |
| HMT Industry | November 1939 | Minesweeper, returned December 1945 |
| HMT Inspector | March 1940 | Harbor service, returned November 1945 |
| HMT Internos | November 1939 | Minesweeper, TRV, returned March 1946 |
| HMT Inverness | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Invercairn | December 1939 | Anti-submarine, returned November 1945 |
| HMT Invercauld | July 1940 | Minesweeper, returned November 1945 |
| HMT Inverclyde | August 1939 | Minesweeper, foundered in tow off Beachy Head 16 October 1942 |
| HMT Inverforth | November 1939 | Minesweeper, returned July 1945 |
| HMT Invertay | August 1940 | Minesweeper, returned July 1946 |
| HMT Inverugie | December 1939 | Minesweeper, Balloon barrage vessel, returned August 1945 |
| HMT Iranian | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Irma Alice | 1940 | Auxiliary patrol, returned 1945 |
| HMT Ironaxe | 1940 | Salvage vessel returned 1945 |
| HMT Irvana | February 1940 | Minesweeper, bombed off Great Yarmouth 16 January 1942 |
| HMT Isabel | 1940 | Minesweeper, returned 1945 |
| HMT Istria | September 1939 | Anti-submarine, sold 1946 |
J
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Jacinta | May 1940 | Auxiliary patrol, Minesweeper, WDV, sold May 1946 |
| HMT Jacketa | November 1939 | Minesweeper, returned March 1946 |
| HMT Jack Eve | November 1939 | Minesweeper, returned November 1945 |
| HMT Jack George | 1942 | Water carrier, returned 1945 |
| HMT Jacqueline Clasine | 1940 | Minesweeper, Esso, returned February 1946 |
| HMT Jacqueline Florimonde | 1940 | Harbor service, returned 1945 |
| HMT Jacques Morgand | June 1940 | Auxiliary patrol, returned 1945 |
| HMT James Barrie | January 1940 | Boom defense vessel, returned November 1945 |
| HMT James Cosgrove | October 1939 | Minesweeper, Boom gate vessel, returned 1946 |
| HMT James Lay | September 1939 | Minesweeper, returned October 1944 |
| HMT Jay | 1940 | Motor launch, Sandmartin 1944, sold 1947 |
| HMT Jan De Waele | September 1940 | Boom defense vessel, returned December 1945 |
| HMT Jardine | August 1939 | Anti-submarine, bombed off Norway 30 April 1940 |
| HMT Jean Edmunds | January 1940 | Minesweeper, returned September 1945 |
| HMT Jean Frederic | November 1940 | Minesweeper, bombed off start point 1 May 1941 |
| HMT Jeanne D'Arc | July 1940 | Auxiliary patrol, balloon barrage vessel, returned 1945 |
| HMT Jeanne Et Genevieve | 1940 | Kite balloon vessel, returned 1945 |
| HMT Jeanne Howie | May 1940 | Boom defense vessel, returned 1945 |
| HMT Jeanne Leask | November 1939 | Minesweeper, returned 1944 |
| HMT Jeannie Mackay | 1940 | Auxiliary patrol, returned January 1946 |
| HMT Jeanne Mackintosh | 1940 | Minesweeper, auxiliary patrol, returned February 1946 |
| HMT Jeannine | June 1940 | Balloon barrage vessel, returned 1945 |
| HMT Jean Ribault | July 1940 | Minesweeper, mooring vessel 1945, returned 1945 |
| HMT Jeloy | April 1941 | Minesweeper, Levanter 1942, returned August 1946 |
| HMT Jennifer | April 1940 | Minesweeper, auxiliary patrol, returned 1942 |
| HMT Jenny Irvin | November 1939 | Minesweeper, returned 1946 |
| HMT Jessie Tait | May 1940 | Balloon barrage vessel, RDF, Training ship, returned 1945 |
| HMT Jewel | 1940 | Minesweeper, mined off Belfast Lough 18 May 1941 |
| HMT Jocelyn | 1940 | Auxiliary patrol, returned 1945 |
| HMT Johannesburg | August 1942 | Minesweeper, returned April 1946 |
| HMT John & Nora | December 1939 | Minesweeper, returned 1945 |
| HMT John Alfred | November 1939 | Minesweeper, Auxiliary patrol, returned 1945 |
| HMT John Baptish | September 1939 | Minesweeper, returned November 1939 |
| HMT John Cattling | August 1939 | Minesweeper, returned July 1945 |
| HMT John Fitzgerald | January 1940 | Boom defense vessel, returned January 1946 |
| HMT John Herd | 1941 | Harbor service, returned 1945 |
| HMT John Stephen | January 1940 | Minesweeper, returned November 1945 |
| HMT John Watt | 1941 | Harbor service, returned 1945 |
| HMT John Williamson | August 1941 | Minesweeper, Royal Hellenic Navy Alfeios 1943 |
| HMT John Willment | 1941 | Minesweeper, returned 1944 |
| HMT Jordanes | August 1940 | Balloon barrage vessel, Auxiliary patrol 1944, returned October 1945 |
| HMT Joseph Button | August 1939 | Minesweeper, mined off Aldburgh 22 October 1940 |
| HMT Joseph Duhamel | December 1940 | Anti-submarine, MoWT, returned 1945 |
| HMT J. T. Hendry | 1940 | Balloon barrage vessel, returned 1944 |
| HMT Junco | December 1940 | Minesweeper, target service, returned May 1946 |
| HMT June Rose | October 1939 | Minesweeper, returned May 1945 |
| HMT Justified | 1940 | Minesweeper, mined off Malta 16 June 1942 |
| HMT Justifier | December 1939 | Minesweeper, returned January 1946 |
K
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Kai | July 1940 | Minesweeper, returned May 1946 |
| HMT Kaiwaka | 1940 | Dan layer, returned 1946 |
| HMT Kapuni | 1941 | Minesweeper, returned 1945 |
| HMT Karmoy | April 1941 | Minesweeper, Fiery Cross 1944, returned August 1946 |
| HMT Kastoria | May 1940 | Auxiliary patrol, Minesweeper, returned April 1946 |
| HMT Katherine | March 1940 | Minesweeper, returned 1946 |
| HMT Kathleen | November 1939 | Minesweeper, returned 1943 |
| HMT Kelt | September 1939 | Anti-submarine, sold 1945 |
| HMT Kennymore | November 1939 | Minesweeper, mined, Thames Estuary 25 November 1940 |
| HMT Kerneval | April 1944 | Esso. returned November 1944 |
| HMT Keryado | July 1940 | Minesweeper, mined in the Channel 6 March 1941 |
| HMT Kiddaw | December 1939 | Balloon barrage vessel, returned July 1945 |
| HMT Kindred Star | December 1939 | Minesweeper, returned February 1946 |
| HMT King Emperor | February 1940 | Minesweeper, store carrier, returned January 1946 |
| HMT King Henry | May 1940 | Towing duties, returned October 1945 |
| HMT King Lear | September 1939 | Anti-submarine, returned December 1945 |
| HMT King Sol | September 1939 | Minesweeper, returned September 1945 |
| HMT Kingscourt | November 1939 | Auxiliary patrol, Minesweeper, returned September 1946 |
| HMT Kings Grey | August 1939 | Armed boarding vessel, Anti-submarine, returned January 1946 |
| HMT Kingston Agate | September 1939 | Anti-submarine, lost 10 January 1940 |
| HMT Kingston Alalite | September 1939 | Anti-submarine, returned February 1946 |
| HMT Kingston Amber | September 1939 | Anti-submarine, sold 1945 |
| HMT Kingston Andalusite | August 1939 | Armed boarding vessel, anti-submarine, lost 25 December 1943 |
| HMT Kingston Beryl | September 1939 | Anti-submarine, mined north of Ireland 18 October 1940 |
| HMT Kingston Cairngorm | September 1939 | Anti-submarine, United States Navy, mined in the Channel 15 June 1942 |
| HMT Kingston Ceylonite | September 1939 | Anti-submarine, returned March 1945 |
| HMT Kingston Chrysoberyl | September 1939 | Anti-submarine, returned September 1945 |
| HMT Kingston Chrysolite | August 1939 | Anti submarine, lost 5 January 1940 |
| HMT Kingston Coral | September 1939 | Anti-submarine, returned March 1945 |
| HMT Kingston Cornelian | August 1939 | Anti submarine, returned September 1945 |
| HMT Kingston Crystal | September 1939 | Anti-submarine, lost 27 April 1940 |
| HMT Kingston Cyanite | September 1939 | Armed boarding vessel, lost 12 January 1943 |
| HMT Kingston Galena | August 1939 | Anti-submarine, bombed off Dover 1945 |
| HMT Kingston Jacinth | August 1939 | Armed boarding vessel, mined off Portsmouth 21 January 1943 |
| HMT Kingston Olivine | August 1939 | Anti-submarine, sold 1945 |
| HMT Kingston Onyx | August 1939 | Armed boarding vessel, Anti-submarine, returned September 1944 |
| HMT Kingston Peridot | August 1939 | Armed boarding vessel, Anti-submarine, returned December 1945 |
| HMT Kingston Sapphire | September 1939 | Armed boarding vessel, sunk by Italian submarine Nani off Gibraltar 5 October 1940 |
| HMT Kingston Topaz | August 1939 | Armed boarding vessel, Anti-submarine, returned November 1945 |
| HMT Kingston Turquoise | August 1939 | Armed boarding vessel, returned November 1945 |
| HMT Kingsway | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Kiritona | 1942 | De-gaussing, returned 1946 |
| HMT Kirkella | September 1939 | Anti-submarine, sold 1946 |
| HMT Kitty George | December 1940 | Water boat, returned 1946 |
| HMT Klo | March 1941 | Anti-submarine, returned October 1946 |
| HMT Kommetjie | November 1940 | Minesweeper, returned March 1946 |
| HMT Koning Albert | August 1940 | Balloon barrage vessel, returned September 1945 |
| HMT Kopanes | 1940 | Auxiliary patrol, bombed off the Tyne 19 April 1941 |
| HMT Korab I | December 1940 | Exam, returned 1946 |
| HMT Koralen | October 1940 | Auxiliary patrol, United States Navy, returned July 1945 |
| HMT Korowa | September 1939 | Minesweeper, returned 1946 |
| HMT Kos XVI | July 1940 | Anti-submarine, lost in collision, North Sea 24 August 1941 |
| HMT Kos XXII | September 1940 | Anti-submarine, bombed in the Mediterranean 2 June 1941 |
| HMT Kos XXIII | September 1940 | Anti-submarine, scuttled in Suda Bay May 1941 |
| HMT Krugersdorp | June 1941 | Minesweeper, returned May 1946 |
| HMT Kunishi | August 1939 | Minesweeper, sold April 1946 |
| HMT Kurd | 1939 | Minesweeper, Mined off the Lizard 10 July 1945 |
| HMT Kuroki | January 1940 | Boom defense vessel, returned 1946 |
| HMT Kuvera | July 1940 | Auxiliary patrol, returned September 1945 |
L
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Lacennia | 1939 | Minesweeper, returned February 1946 |
| HMT Lacerta | June 1940 | Auxiliary patrol, Minesweeper, sold February 1946 |
| HMT Lady Beryl | September 1939 | Anti-submarine, sold 1945 |
| HMT Lady Eleanor | 1940 | Boom defense vessel, sold January 1947 |
| HMT Lady Elsa | September 1939 | Anti-submarine, United States Navy, sold 1945 |
| HMT Lady Enid | August 1939 | Minesweeper, returned 1945 |
| HMT Lady Estelle | 1940 | Anti-submarine, returned 1945 |
| HMT Lady Hogarth | 1939 | Auxiliary patrol, anti-submarine, returned 1945 |
| HMT Lady Lillian | 1940 | Anti-submarine, bombed west of Ireland 16 March 1941 |
| HMT Lady Madeline | 1940 | Anti-submarine, returned February 1946 |
| HMT Lady Philomena | August 1939 | Anti-submarine, returned October 1945 |
| HMT Lady Rosemary | 1940 | Anti-submarine, auxiliary patrol, returned 1946 |
| HMT Lady Shirley | 1939 | Auxiliary patrol, sunk by U-374 near Gibraltar 11 December 1941 |
| HMT Lady Stanley | 1940 | Auxiliary patrol, returned 1945 |
| HMT Lanner | November 1939 | Minesweeper, returned February 1946 |
| HMT Lapageria | September 1940 | Auxiliary patrol, fuel tanker, returned February 1946 |
| HMT L'Appel De La Mer | August 1940 | Auxiliary patrol, returned 1945 |
| HMT Lapwing | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Larsen | January 1940 | Minesweeper, returned April 1946 |
| HMT Larwood | August 1939 | Anti-submarine, lost 25 April 1940, salved & German VPG 111 |
| HMT Lasher | 1941 | Harbor service, returned February 1946 |
| HMT Lassie Main | May 1940 | Balloon barrage vessel, base ship Quebec, returned July 1944 |
| HMT L'Atlantique | July 1940 | Anti-submarine, returned April 1946 |
| HMT Lavatera | April 1940 | Balloon barrage vessel, returned 1946 |
| HMT Laverock | May 1940 | Boom defense vessel, sold March 1946 |
| HMT Lavinia L | December 1939 | Balloon barrage vessel, lost 5 June 1941 |
| HMT Lea Rig | 1940 | Auxiliary patrol, Fox II 1944, returned 1945 |
| HMT Leeds Unitied [sic?] | September 1939 | Anti-submarine, sold 1945 |
| HMT Le Flibustier | 1940 | Minesweeper, returned 1945 |
| HMT Leicester City | September 1939 | Anti-submarine, returned March 1946 |
| HMT Lemnos | 1940 | Harbor service, returned 1945 |
| HMT Le Nivose | 1940 | Auxiliary patrol, returned 1945 |
| HMT Leo | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Leonora | November 1939 | Attached Fleet Air Arm |
| HMT Le Tiger | December 1939 | Anti-submarine, sold October 1945 |
| HMT Lephreto | August 1939 | Minesweeper, Esso, returned 1945 |
| HMT Lerina | 1941 | Auxiliary patrol, sold 1946 |
| HMT Leyland | September 1939 | Anti-submarine, lost in collision off Gibraltar 25 November 1942 |
| HMT Liberator | May 1940 | Minesweeper, returned 1945 |
| HMT Liberia | 1940 | Minesweeper, returned July 1946 |
| HMT Libra | 1940 | Minesweeper, returned 1945 |
| HMT Libyan | 1940 | Minesweeper, Esso, returned 1945 |
| HMT Lichen | November 1939 | Minesweeper, returned 1945 |
| HMT Liddock | March 1940 | Dan layer, auxiliary patrol, returned December 1941 |
| HMT Ligny | September 1940 | Minesweeper, returned November 1945 |
| HMT Lilium | 1941 | De-gaussing, returned January 1946 |
| HMT Lilly Oak | 1940 | Auxiliary patrol, returned 1945 |
| HMT Lincoln City | September 1939 | Anti-submarine, bombed off the Faroes 21 February 1941 |
| HMT Lincolshire | September 1939 | Anti-submarine, returned September 1945 |
| HMT L'Istrac | 1939 | Auxiliary patrol, sunk by gunfire in the Channel 11 October 1940 |
| HMT Lizzie Birrel | November 1939 | Minesweeper, returned April 1946 |
| HMT Lizzie Flett | 1940 | Auxiliary patrolled, returned 1944 |
| HMT Lizzie West | 1941 | Auxiliary patrol, returned 1945 |
| HMT Loch Alsh | September 1940 | Minesweeper, bombed off the Humber 30 January 1942 |
| HMT Loch Assater | 1939 | Minesweeper, mined off east Scotland 22 March 1940 |
| HMT Loch Blair | June 1940 | Auxiliary patrol, returned February 1946 |
| HMT Loch Buie | August 1939 | Minesweeper, returned March 1946 |
| HMT Loch Doon | August 1939 | Minesweeper, mined off Blyth 25 December 1939 |
| HMT Loch Eribol | September 1939 | Minesweeper, lost in collision with SS Sidney Sharman off Start Point 12 October 1945 |
| HMT Loch Esk | November 1939 | Minesweeper, returned 1943 |
| HMT Loch Hope | June 1940 | Auxiliary patrol, returned December 1945 |
| HMT Loch Inver | May 1940 | Auxiliary patrol, mined off Harwich 24 September 1940 |
| HMT Loch Laggan | September 1939 | Boom defense vessel, returned May 1945 |
| HMT Loch Leven | August 1939 | Minesweeper, returned February 1946 |
| HMT Loch Long | March 1940 | Boom defense vessel, sold February 1946 |
| HMT Loch Melfort | August 1939 | Anti-submarine, sold February 1946 |
| HMT Loch Moidart | June 1940 | Auxiliary patrol, Minesweepers, returned January 1946 |
| HMT Loch Monteith | September 1939 | Anti-submarine, submarine tender, returned November 1945 |
| HMT Loch Naver | August 1939 | Minesweeper, lost 6 May 1940 |
| HMT Loch Nevis | 1940 | Motor launch, returned 1944 |
| HMT Loch Oskaig | August 1939 | Anti-submarine, returned November 1945 |
| HMT Loch Park | June 1940 | Minesweeper, returned August 1945 |
| HMT Loch Rannock | January 1940 | Minesweeper, returned November 1945 |
| HMT Loch Shin | September 1939 | Boom defense vessel, bombed at Harstad, Norway 25 May 1940 |
| HMT Loch Tulla | September 1939 | Anti-submarine, sold January 1946 |
| HMT Lois | February 1940 | Minesweeper, returned November 1944 |
| HMT Lombard | May 1940 | Auxiliary patrol, Minesweeper, returned November 1945 |
| HMT Longscar | August 1939 | Exam, returned 1946 |
| HMT Loon | March 1940 | Balloon barrage vessel, water carrier, returned December 1945 |
| HMT Loos | 1940 | Boom gate vessel, returned 1945 |
| HMT L'Orage | November 1940 | Special service, MoWT July 1942 |
| HMT Lord Anson | August 1939 | Harbor service, returned February 1946 |
| HMT Lord Ashfield | September 1939 | Minesweeper, returned December 1945 |
| HMT Lord Austin | September 1939 | Anti-submarine, mined off Normandy 26 June 1944 |
| HMT Lord Barham | November 1939 | Minesweeper, returned October 1945 |
| HMT Lord Beaconsfield | August 1939 | Minesweeper, auxiliary patrol, Minesweeper, wrecked October 1945 |
| HMT Lord Cavan | November 1939 | Mine recovery vessel, sunk by gunfire off Dunkirk 2 June 1940 |
| HMT Lord Cecil | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Lord Collingwood | April 1940 | Auxiliary patrol, returned 1945 |
| HMT Lord Curzon | September 1939 | Store carrier, returned February 1946 |
| HMT Lord Darling | August 1940 | Minesweeper, Exam, returned September 1944 |
| HMT Lord Dunwich | September 1940 | Exam, returned March 1946 |
| HMT Lord Essenden | September 1939 | Anti-submarine, returned October 1945 |
| HMT Lord Gainford | December 1939 | Boom defense vessel, returned 1946 |
| HMT Lord Grey | August 1939 | Minesweeper, returned March 1946 |
| HMT Lord Hailsham | August 1939 | Anti-submarine, torpedoed by E-boat in the Channel 27 February 1943 |
| HMT Lord Hood | November 1939 | Minesweeper, returned August 1945 |
| HMT Lord Hotham | September 1939 | Anti-submarine, sold September 1945 |
| HMT Lord Howard | November 1940 | Auxiliary patrol, lost in collision off Dover 27 December 1940 |
| HMT Lord Howe | November 1940 | Flare drifter, Training ship, returned February 1946 |
| HMT Lord Inchcape | August 1939 | Minesweeper, returned 1945 |
| HMT Lord Irwin | August 1939 | Minesweeper, returned February 1946 |
| HMT Lord Keith | September 1939 | Auxiliary patrol, returned December 1945 |
| HMT Lord Lloyd | August 1939 | Anti-submarine, sold 1945 |
| HMT Lord Melchett | August 1939 | Minesweeper, returned April 1946 |
| HMT Lord Middleton (FY219) | August 1939 | Anti-submarine, returned 1945 |
| HMT Lord Northcliffe | November 1939 | Balloon barrage vessel, returned November 1945 |
| HMT Lord Nuffield | September 1939 | Anti-submarine, returned December 1945 |
| HMT Lord Plender | August 1939 | Anti-submarine, sold 1946 |
| HMT Lord Rodney | September 1939 | Minesweeper, returned February 1946 |
| HMT Lord St. Vincent | September 1939 | Auxiliary patrol, balloon barrage vessel, mined, Thames Estuary 7 July 1941 |
| HMT Lord Selborne | June 1940 | Auxiliary patrol, mined in the Humber 31 March 1941 |
| HMT Lord Snowden | August 1939 | Anti-submarine, lost in collision off Falmouth 13 April 1942 |
| HMT Lord Stamp | August 1939 | Anti-submarine, mined in the Channel 14 October 1940 |
| HMT Lord Stanhope | August 1939 | Anti-submarine, returned November 1945 |
| HMT Lord Stonehaven | August 1939 | Anti-submarine, torpedoed by E-boat off the Eddystone 2 October 1942 |
| HMT Lord Suffolk | December 1939 | Auxiliary patrol, returned 1943 |
| HMT Lord Wakefield | August 1939 | Anti-submarine, bombed off Normandy 29 July 1944 |
| HMT Lorinda | September 1939 | Minesweeper, lost by fire at Freetown 28 August 1941 |
| HMT Lorraine | June 1940 | Auxiliary patrol, Minesweeper, returned January 1946 |
| HMT Louis Botha | June 1940 | Auxiliary patrol, wrecked south of Reykjavík 7 March 1944 |
| HMT Louise Et Marie | July 1940 | Minesweeper, returned January 1946 |
| HMT Lovania | June 1940 | Auxiliary patrol, sold February 1946 |
| HMT Lowther | February 1940 | Minesweeper, returned January 1946 |
| HMT Loyal Friend | December 1939 | Anti-submarine, returned August 1945 |
| HMT Lucien Goujy | July 1940 | Minesweeper, lost, cause unknown? 21 February 1945 |
| HMT Lucienne Jeanne | April 1941 | Minesweeper, stranded & abandoned, Nore area 24 October 1941 |
| HMT Luda Lady | November 1939 | Minesweeper, mined off the East Coast 22 January 1941 |
| HMT Luda Lord | November 1939 | Minesweeper, store carrier, returned November 1944 |
| HMT Luminary | September 1940 | Boom defense vessel, sold December 1946 |
| HMT Lune | September 1939 | Minesweeper, Wreck dispersal vessel, sold July 1946 |
| HMT Lurcher | 1941 | Anti-submarine, returned 1946 |
| HMT Lydia Long | 1940 | Auxiliary patrol, returned 1945 |
| HMT Lydiard | September 1939 | Anti-submarine, sold February 1946 |
M
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Mace | August 1939 | Harbor service, returned 1945 |
| HMT M. A. West | 1940 | Exam, lost 14 May 1941 |
| HMT Maaloy | April 1940 | Minesweeper, sunk by U-510 off Ceylon 27 March 1944 |
| HMT Madden | February 1940 | Minesweeper, wreck dispersal vessel, returned April 1946 |
| HMT Maggie Gault | June 1940 | Harbor service, returned April 1945 |
| HMT Maida | November 1939 | Minesweeper, mined off the East Coast 16 March 1940 |
| HMT Majesty | March 1940 | Minesweeper, auxiliary patrol, returned September 1946 |
| HMT Malacolite | August 1939 | Minesweeper, returned September 1945 |
| HMT Mandal | July 1940 | Minesweeper, returned 1946 |
| HMT Manor | August 1939 | Anti-submarine, torpedoed by E-boat in the Channel 9 July 1942 |
| HMT Man O'War | August 1939 | Anti-submarine, sold 1945 |
| HMT Manx Prince | December 1939 | Minesweeper, mined off the Humber 28 November 1940 |
| HMT Marano | November 1939 | Minesweeper, returned January 1945 |
| HMT Marcel Pierre | July 1940 | Auxiliary patrol, returned 1945 |
| HMT Marcia | March 1940 | Balloon barrage vessel, returned 1944 |
| HMT Marconi | February 1940 | Minesweeper, lost in collision off Harwich 20 September 1941 |
| HMT Mare | November 1939 | Minesweeper, returned October 1945 |
| HMT Maretta | September 1939 | Minesweeper, returned November 1945 |
| HMT Margaret Hide | November 1939 | Minesweeper, returned April 1945 |
| HMT Margaret Rose | May 1940 | Minesweeper, returned 1946 |
| HMT Marguerita | November 1939 | Harbor service, returned October 1945 |
| HMT Maria | May 1941 | Wrech dispersal vessel, sold 1950 |
| HMT Maria Elizabeth | 1940 | Minesweeper, Esso, returned 1945 |
| HMT Maria R. Ommering | 1940 | Minesweeper, returned February 1946 |
| HMT Marie Elena | August 1940 | Minesweeper, returned 1944 |
| HMT Marie Louise | August 1940 | Boom defense vessel, returned January 1946 |
| HMT Marigold II | August 1939 | Harbor service, returned 1945 |
| HMT Maris Stella | July 1940 | Boom gate vessel, returned 1945 |
| HMT Maris Stella | July 1940 | Auxiliary patrol, returned 1945 |
| HMT Marjorie M. Hastie | June 1940 | Minesweeper, returned 1945 |
| HMT Marsona | October 1939 | Minesweeper, mined off Cromarty 4 August 1940 |
| HMT Mary A. Hastie | November 1939 | Minesweeper, auxiliary patrol, returned 1945 |
| HMT Mary A. Purdy | February 1940 | Balloon barrage vessel, returned October 1944 |
| HMT Mary Cam | 1941 | Boom defense vessel, sold May 1948 |
| HMT Mary Herd | May 1940 | Water carrier, returned October 1945 |
| HMT Mary J. Masson | May 1940 | Mobile wiping unit, returned 1946 |
| HMT Mary Sturgeon | March 1940 | Auxiliary patrol, returned 1945 |
| HMT Mary Swanston | October 1939 | Harbor service, returned October 1945 |
| HMT Mary Watt | 1941 | Harbor service, returned 1946 |
| HMT Mary White | January 1940 | Boom defense vessel, returned February 1946 |
| HMT Masona | December 1939 | Boom defense vessel, scrapped, June 1947 |
| HMT Massabielle | September 1940 | Air/sea rescue, returned 1945 |
| HMT Mastiff | 1941 | Anti-submarine, returned 1945 |
| HMT Mathhilde Simonne | October 1940 | Auxiliary patrol, mobile wiping unit, returned April 1946 |
| HMT Meander | 1940 | Auxiliary patrol, returned 1946 |
| HMT Melbourne | September 1939 | Anti-submarine, bombed off Narvik 22 May 1940 |
| HMT Memento | 1940 | Minesweeper, returned 1945 |
| HMT Merbreeze | November 1939 | Minesweeper, returned 1946 |
| HMT Meror | September 1940 | Minesweeper, mined off the Humber 3 October 1943 |
| HMT Mewslade | March 1940 | Minesweeper, returned April 1946 |
| HMT M. H. Buchan | August 1939 | Harbor service, returned 1946 |
| HMT M. H. Stephan | November 1939 | Exam fire float, returned December 1944 |
| HMT Michael Griffith | August 1939 | Minesweeper, returned January 1945 |
| HMT Midas | February 1940 | Flare drifter, Balloon barrage vessel, lost in collision off Dungeness 3 February 1941 |
| HMT Mikasa | December 1939 | Auxiliary patrol, returned October 1944 |
| HMT Mildenhall | September 1939 | Anti-submarine, French L'Ajacciene 1939 |
| HMT Milford Countess | August 1939 | Minesweeper, returned April 1946 |
| HMT Milford Duchess | August 1939 | Minesweeper, returned December 1944 |
| HMT Milford Duke | August 1939 | Boom defense vessel, returned November 1945 |
| HMT Milford Earl | August 1939 | Minesweeper, bombed East of Scotland 8 December 1941 |
| HMT Milford King | December 1939 | Minesweeper, store carrier, returned November 1945 |
| HMT Milford Prince | August 1939 | Minesweeper, returned December 1945 |
| HMT Milford Princess | September 1939 | Minesweeper, returned September 1945 |
| HMT Milford Queen | August 1939 | Minesweeper, returned December 1945 |
| HMT Mill O'Buckie | September 1939 | Harbor service, returned 1945 |
| HMT Millwater | June 1940 | Balloon barrage vessel, exam, auxiliary patrol, returned 1945 |
| HMT Mint | November 1939 | Water carrier, returned 1946 |
| HMT Mirabelle | November 1939 | Auxiliary patrol, Esso, lost in collision 17 September 1944 |
| HMT Mitres | June 1940 | Auxiliary patrol, salvage vessel, returned November 1945 |
| HMT Moed En Werk | June 1940 | Dan layer, returned 1945 |
| HMT Molde | July 1940 | Anti-submarine, Minesweeper, returned 1946 |
| HMT Monarda | November 1939 | Minesweeper, foundered, Thames Estuary 8 November 1941 |
| HMT Monimia | August 1939 | Minesweeper, returned November 1945 |
| HMT Monique Andre | July 1940 | Minesweeper, returned January 1946 |
| HMT Monique Camille | August 1940 | Minesweeper, returned March 1945 |
| HMT Montano | 1940 | Auxiliary patrol, Minesweeper, returned January 1946 |
| HMT Mooivlet | November 1939 | Anti-submarine, returned March 1945 |
| HMT Moonlight | January 1940 | Store carrier, returned 1945 |
| HMT Moonrise | March 1940 | Minesweeper, Boom gate vessel, sold May 1946 |
| HMT Moonshine | 1940 | Minesweeper, sold January 1945 |
| HMT Moravia | June 1940 | Minesweeper, auxiliary patrol, mined, North Sea 14 March 1943 |
| HMT Moray | 1940 | Dan layer, store carrier, foundered off Milford Haven 13 March 1943 |
| HMT Moray Rose | August 1939 | Harbor service, returned 1945 |
| HMT Moray View | March 1940 | Hospital drifter, returned February 1946 |
| HMT Morgan Jones | June 1940 | Auxiliary patrol, returned April 1945 |
| HMT Morven Hill | October 1940 | Examination service, returned March 1946 |
| HMT Moss | 1941 | Anti-submarine, training, returned 1945 |
| HMT Mount Ard | September 1939 | Boom defense vessel, returned April 1945 |
| HMT Mount Keen | August 1939 | Minesweeper, returned April 1945 |
| HMT Murmansk | August 1939 | Minesweeper, wrecked at Brest 17 June 1940 |
| HMT Muroto | August 1939 | Minesweeper, returned January 1944 |
| HMT Musk Rose | July 1940 | Exam, sold 1946 |
| HMT Myrland | April 1941 | Minesweeper, returned 1946 |
N
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Nab Wyke | August 1939 | Minesweeper, returned March 1946 |
| HMT Nadine | 1940 | Minesweeper, returned 1945 |
| HMT Nairnside | 1939 | Minesweeper, harbor service, returned 1945 |
| HMT Namur | May 1940 | Auxiliary patrol, Boom defense vessel, Palisade 1944, sold 1946 |
| HMT Nancy Hague | March 1940 | Boom defense vessel, returned 1946 |
| HMT Narvik | October 1940 | Anti-submarine, Minesweeper, returned 1945 |
| HMT Natal II | November 1939 | Boom gate vessel, returned 1945 |
| HMT Natalia | April 1940 | Minesweeper, returned June 1946 |
| HMT Nautilus | 1939 | Dan layer, lost by unknown cause at Dunkirk 29 May 1940 |
| HMT Nautilus | 1942 | Minesweeper, RDF calibrating, returned 1946 |
| HMT Nazareth | July 1940 | Minesweeper, returned 1945 |
| HMT Nebb | 1940 | Minesweeper, Dan layer, returned 1945 |
| HMT Nebula | 1941 | Minesweeper, returned 1946 |
| HMT Negro | October 1939 | Minesweeper, returned February 1945 |
| HMT Neil Mackay | October 1939 | Anti-submarine, returned 1945 |
| HMT Neil Smith | August 1939 | Minesweeper, returned 1944 |
| HMT Nerine | December 1925 | Minesweeper, returned October 1944 |
| HMT Netsukis | November 1939 | Auxiliary patrol, TRV, returned April 1946 |
| HMT New Comet | November 1939 | Minesweeper, store carrier, returned December 1945 |
| HMT Newhaven N.B. | February 1940 | Minesweeper, returned February 1945 |
| HMT Newland | May 1940 | Minesweeper, returned July 1940 |
| HMT New Spray | 1940 | Balloon barrage vessel, foundered off Sheerness 3 January 1941 |
| HMT Niblick | June 1940 | Auxiliary patrol, water carrier, Minesweeper, returned August 1945 |
| HMT Nigel | March 1941 | Minesweeper, returned May 1946 |
| HMT Night Hawk | February 1940 | Minesweeper, returned August 1946 |
| HMT Night Rider | January 1940 | Boom defense vessel, sold February 1947 |
| HMT Nimbus | November 1941 | Minesweeper, returned February 1946 |
| HMT Noble Nora | 1940 | Minesweeper, RHN Spercheios September 1943, lost 3 April 1945 |
| HMT Nodzu | September 1939 | Minesweeper, returned November 1945 |
| HMT Nogi | August 1939 | Minesweeper, bombed off Norfolk 23 June 1941 |
| HMT Noonday | 1941 | Auxiliary patrol, returned April 1946 |
| HMT Nora Niven | October 1942 | Dan layer, returned February 1944 |
| HMT Norbreeze | October 1939 | Net-layer, returned January 1946 |
| HMT Nordhav II | April 1940 | Minesweeper, sunk by U-714 off Dundee 10 March 1945 |
| HMT Nordland | February 1940 | Boom defense vessel, returned 1946 |
| HMT Norfolk County | 1941 | Target service, returned 1945 |
| HMT Norina | January 1940 | Boom defense vessel, sold May 1947 |
| HMT Norlan | 1940 | Boom defense vessel, returned 1945 |
| HMT Norland | May 1940 | Auxiliary patrol, Minesweeper, returned October 1945 |
| HMT Norman Wilson | November 1939 | Balloon barrage vessel, returned September 1946 |
| HMT Norse | August 1939 | Minesweeper, returned November 1944 |
| HMT North Esk | October 1939 | Harbor service, returned December 1945 |
| HMT North Haven | 1941 | Harbor service, returned 1945 |
| HMT North Ness | May 1940 | Auxiliary patrol, returned July 1946 |
| HMT Northcoates | August 1939 | Minesweeper, foundered in tow in the Channel 2 December 1944 |
| HMT Northern Chief | August 1939 | Armed boarding vessel, anti-submarine, United States Navy, returned February 1946 |
| HMT Northern Dawn | August 1939 | Anti-submarine United States Navy, returned February 1946 |
| HMT Northern Duke | September 1939 | Armed boarding vessel, anti-submarine, returned January 1946 |
| HMT Northern Foam | August 1939 | Armed boarding vessel, anti-submarine, returned November 1945 |
| HMT Northern Gem | August 1939 | Anti-submarine, returned November 1945 |
| HMT Northern Gift | September 1939 | Armed boarding vessel, anti-submarine, returned October 1945 |
| HMT Northern Isles | August 1939 | Armed boarding vessel, anti-submarine, wrecked off Durban 19 January 1945 |
| HMT Northern Light | 1940 | Minesweeper, returned 1946 |
| HMT Northern Pride | August 1939 | Anti-submarine, returned November 1945 |
| HMT Northern Princess | September 1939 | Armed boarding vessel, anti-submarine, sunk by U-94, North Atlantic 7 March 1942 |
| HMT Northern Reward | September 1939 | Armed boarding vessel, anti-submarine, United States Navy, returned January 1946 |
| HMT Northern Rover | August 1939 | Armed boarding vessel, lost November 1939 |
| HMT Northern Scot | 1941 | Harbor service, returned 1944 |
| HMT Northern Sky | September 1939 | Armed boarding vessel, anti-submarine, returned September 1945 |
| HMT Northern Spray | September 1939 | Anti-submarine, returned September 1945 |
| HMT Northern Sun | September 1939 | Armed boarding vessel, anti-submarine, returned December 1945 |
| HMT Northern Wave | September 1939 | Anti-submarine, returned September 1945 |
| HMT Northlyn | October 1939 | Boom defense vessel, returned January 1946 |
| HMT Northman | July 1940 | Anti-submarine, returned March 1946 |
| HMT Northward | November 1939 | Minesweeper, returned February 1946 |
| HMT Norwich City | September 1939 | Anti-submarine, United States Navy, returned April 1946 |
| HMT Notre Dame D'Etel | 1940 | Auxiliary patrol, returned 1945 |
| HMT Notre Dame De France | October 1941 | Anti-submarine, returned December 1945 |
| HMT Notre Dame De Lourdes | 1940 | Harbor service, returned 1945 |
| HMT Notre Dame De Montligeon | October 1940 | Boom gate vessel, returned October 1945 |
| HMT Notts County | September 1939 | Anti-submarine, sunk by U-701 south of Iceland 8 March 1942 |
| HMT Novice | August 1940 | Boom defense vessel, returned 1945 |
| HMT Nuevo Caldas | 1942 | Harbor service, returned 1945 |
| HMT Nuevo Mataro | 1942 | Harbor service, returned 1945 |
O
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Oasis | 1940 | Auxiliary patrol, sold 1945 |
| HMT Oaklea | 1939 | Auxiliary patrol, returned 1946 |
| HMT Obtain | February 1940 | Harbor service, returned October 1945 |
| HMT Ocean Breeze | September 1939 | Minesweeper, returned 1944 |
| HMT Ocean Brine | November 1939 | Auxiliary patrol, returned November 1944 |
| HMT Ocean Eddy | January 1940 | Boom defense vessel, returned February 1946 |
| HMT Ocean Fisher | August 1939 | Exam, returned August 1945 |
| HMT Ocean Gain | December 1939 | Mobile wiping unit, returned May 1946 |
| HMT Ocean Guide | December 1939 | Mobile wiping unit, returned March 1946 |
| HMT Ocean Lassie | August 1939 | Auxiliary patrol, mined off Harwich 4 June 1940 |
| HMT Ocean Lifebuoy | November 1939 | Minesweeper, returned January 1946 |
| HMT Ocean Lover | March 1940 | Minesweeper, Auxiliary patrol, returned 1945 |
| HMT Ocean Lux | November 1939 | Minesweeper, returned September 1945 |
| HMT Ocean Pearl | 1940 | Harbor service, returned 1945 |
| HMT Ocean Pilot | September 1939 | Harbor service, returned June 1946 |
| HMT Ocean Pioneer | May 1940 | Mobile wiping unit, returned 1946 |
| HMT Ocean Pride | 1941 | Auxiliary patrol, returned 1945 |
| HMT Ocean Ranger | November 1940 | FAA safety vessel, TRV returned 1945 |
| HMT Ocean Retriever | April 1940 | Minesweeper, Auxiliary patrol, mined, Thames Estuary 22 September 1943 |
| HMT Ocean Reward | December 1939 | Minesweeper, lost in collision off Dover 28 May 1940 |
| HMT Ocean Rover | 1940 | TRV, sold 1946 |
| HMT Ocean Scout | November 1939 | Minesweeper, torpedo recovery vessel, returned December 1945 |
| HMT Ocean Spray | January 1940 | Minesweeper, harbor service, returned January 1946 |
| HMT Ocean Sprite | August 1939 | Harbor service, returned 1945 |
| HMT Ocean Star | December 1940 | KBV, returned 1945 |
| HMT Ocean Sunlight | November 1939 | Minesweeper, mined off Newhaven 13 June 1940 |
| HMT Ocean Swell | October 1939 | Net-layer, returned August 1945 |
| HMT Ocean Toiler | April 1940 | Minesweeper, auxiliary patrol, returned January 1946 |
| HMT Ocean Treasure | May 1940 | Minesweeper, auxiliary patrol, returned March 1946 |
| HMT Ocean Voctor | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Ocean View | February 1940 | Minesweeper, returned December 1945 |
| HMT Ocean Vim | September 1939 | Minesweeper, returned March 1946 |
| HMT Ocean's Gift | July 1940 | Auxiliary patrol, March 1946 |
| HMT Odberg | April 1941 | Anti-submarine, returned June 1946 |
| HMT Ogano | May 1940 | Minesweeper, returned July 1944 |
| HMT Ohm | August 1939 | Minesweeper, returned December 1945 |
| HMT Okapi | October 1940 | Auxiliary patrol, returned December 1945 |
| HMT Okino | January 1940 | Boom defense vessel, returned December 1945 |
| HMT Oksoy | August 1941 | Minesweeper, Cyclone 1944, RHN Pinieos 1945, lost 24 October 1945 |
| HMT Oku | August 1939 | Minesweeper, returned February 1945 |
| HMT Olaf I | 1941 | KBV, returned 1945 |
| HMT Olden Times | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Olivae | November 1939 | Minesweeper, returned November 1945 |
| HMT Olive Branch | November 1939 | Harbor service, returned 1945 |
| HMT Olive Cam | September 1939 | Minesweeper, sold May 1946 |
| HMT Olive Tree | 1940 | Minesweeper, Auxiliary patrol, returned 1945 |
| HMT Olivine | September 1939 | Harbor service, returned December 1945 |
| HMT Olvina | August 1939 | Anti-submarine, returned December 1945 |
| HMT Olympia | December 1939 | Minesweeper, returned October 1945 |
| HMT One Accord | November 1939 | Minesweeper, returned 1946 |
| HMT Onetos | November 1939 | Minesweeper, wreck dispersal vessel, returned January 1946 |
| HMT Onward | November 1939 | Minesweeper, returned November 1944 |
| HMT Oostewal | October 1939 | Minesweeper, returned May 1946 |
| HMT Ophir | 1941 | Boom defense vessel, returned ? |
| HMT Oriental Star | September 1939 | Anti-submarine, French La Setoise 1939 |
| HMT Orizaba | August 1940 | Minesweeper, Esso, returned December 1944 |
| HMT Ormonde | November 1939 | Minesweeper, bombed East of Scotland 16 February 1941 |
| HMT Ornen III | January 1940 | Minesweeper, returned December 1945 |
| HMT Orpheus | June 1940 | Minesweeper, returned January 1946 |
| HMT Orvicto | April 1940 | Dan layer, auxiliary patrol, returned October 1945 |
| HMT Oryx | July 1940 | Auxiliary patrol, Gemsbuck 1944, returned 1946 |
| HMT Osako | February 1940 | Minesweeper, returned December 1945 |
| HMT Oscar Angele | 1940 | Auxiliary patrol, returned 1945 |
| HMT Osta | November 1939 | Minesweeper, balloon barrage vessel, returned November 1944 |
| HMT Oswaldian | May 1940 | Minesweeper, mined, Bristol Channel 4 August 1940 |
| HMT Othello | November 1939 | Minesweeper, boom defense vessel, mined in the Humber 11 April 1941 |
| HMT Our Bairns | December 1939 | Minesweeper, target service, returned March 1946 |
| HMT Our Kate | March 1940 | Minesweeper, balloon barrage vessel, returned 1945 |
| HMT Outpost | March 1943 | Esso, returned April 1945 |
| HMT Overdale Wyke | July 1939 | Minesweeper, sold 1946 |
| HMT Overfall | November 1939 | Minesweeper, target service, returned October 1945 |
| HMT Oystermouth Castle | May 1940 | Auxiliary patrol, Minesweeper, returned January 1946 |
P
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Packice | November 1941 | Minesweeper, returned September 1944 |
| HMT Panorama | January 1940 | Boom defense vessel, sold March 1946 |
| HMT Paradigm | February 1940 | Harbor service, returned March 1946 |
| HMT Paramount | November 1939 | Minesweeper, returned January 1946 |
| HMT Patricia Cam | 1941 | Minesweeper, bombed by Japanese aircraft off Wessel Island 22 January 1943 |
| HMT Patrie | August 1940 | Auxiliary patrol, returned May 1945 |
| HMT Patti | May 1940 | Auxiliary patrol, Minesweeper, returned January 1946 |
| HMT Paul Rykens | November 1939 | Anti-submarine, returned December 1945 |
| HMT Pax | 1940 | Minesweeper, Dan layer, returned 1945 |
| HMT Paxton | November 1939 | Flare drifter, bombed at Dunkirk 28 May 1940 |
| HMT Paynter | 1939 | Anti-submarine, returned 1945 |
| HMT Peacemaker | May 1940 | Auxiliary patrol, returned 1945 |
| HMT Pecheur | October 1939 | Net layer, returned July 1945 |
| HMT Peggy Nutten | February 1940 | Auxiliary patrol, balloon barrage vessel, Esso, returned November 1944 |
| HMT Peken | July 1940 | Minesweeper, returned August 1945 |
| HMT Pelagos | May 1940 | Auxiliary patrol, Minesweeper, returned August 1945 |
| HMT Pelton | 1939 | Minesweeper, torpedoed by E-boat off Gt. Yarmouth 24 December 1940 |
| HMT Pentland Firth | August 1939 | Anti-submarine United States Navy 1942, lost in collision off New York 19 September 1942 |
| HMT Perdrant | August 1940 | Minesweeper, returned 1945 |
| HMT Perfective | November 1939 | KBV, returned 1945 |
| HMT Peridot | August 1939 | Anti-submarine, mined off Dover 15 March 1940 |
| HMT Perilia | November 1939 | Minesweeper, returned February 1946 |
| HMT Peter Carey | August 1939 | Minesweeper, returned September 1945 |
| HMT Peter Hendricks | November 1939 | Anti-submarine, returned February 1946 |
| HMT Phase | October 1939 | Minesweeper, returned February 1946 |
| HMT Philippe | April 1940 | Dan layer, auxiliary patrol, returned January 1946 |
| HMT Phineas Beard | August 1939 | Minesweeper, bombed East of Scotland 8 December 1941 |
| HMT Phrontis | May 1940 | Auxiliary patrol, returned January 1946 |
| HMT Phyllis | 1942 | Dan layer, returned 1944 |
| HMT Phyllisia | December 1939 | Boom defense vessel, Portuguese 1943-45, returned July 1946 |
| HMT Phyllis Rose | April 1940 | Auxiliary patrol, returned November 1945 |
| HMT Pict | August 1939 | Anti-submarine, sold 1945 |
| HMT Picton Castle | August 1939 | Minesweeper, returned December 1945 |
| HMT Pierre Andre | July 1940 | Minesweeper, returned January 1946 |
| HMT Pierre Desceliers | August 1940 | Auxiliary patrol, boom defense vessel, bombed off Salcombe 13 August 1942 |
| HMT Pierre Gustave | August 1940 | Minesweeper, returned March 1946 |
| HMT Pilot Star | November 1939 | Harbor service, returned 1946 |
| HMT Pilot Us | August 1939 | Store carrier, returned March 1946 |
| HMT Pitstruan | May 1940 | Minesweeper, Esso, returned November 1944 |
| HMT Playmates | October 1939 | Minesweeper, returned October 1945 |
| HMT Plougastel | 1940 | Mine watching, returned 1945 |
| HMT Plough | 1939 | Harbor service, returned 1945 |
| HMT Plough Boy | November 1939 | Boom defense vessel, scrapped July 1946 |
| HMT Plumber | November 1939 | Minesweeper, harbor service, returned July 1945 |
| HMT Pointer | January 1940 | Minesweeper, returned December 1945 |
| HMT Pointz Castle | August 1939 | Minesweeper, returned April 1945 |
| HMT Pol V | 1940 | Minesweeper, sold November 1945 |
| HMT Pol VII | 1940 | Minesweeper, United States Navy, returned 1946 |
| HMT Pol X | 1940 | Minesweeper, returned 1946 |
| HMT Polar 5 | March 1940 | Minesweeper, sold September 1946 |
| HMT Polar 6 | March 1940 | Minesweeper, sold April 1946 |
| HMT Polly Johnson | August 1939 | Minesweeper, bombed off Dunkirk 29 May 1940 |
| HMT Portia | May 1940 | Minesweeper, returned January 1946 |
| HMT Poseidon | October 1939 | Exam, returned 1945 |
| HMT Post Boy | 1940 | Minesweeper, returned July 1946 |
| HMT Pourquois Pas | 1940 | Auxiliary patrol, returned 1945 |
| HMT Powis Castle | February 1940 | Minesweeper, returned April 1945 |
| HMT Pre-Eminent | October 1939 | Harbor service, returned 1946 |
| HMT Present Help | 1941 | submarine tender, returned 1945 |
| HMT President Briand | 1940 | Minesweeper, MoWT 1943 |
| HMT President Herriot | 1940 | Auxiliary patrol, returned 1944 |
| HMT Preston North End | September 1939 | Anti-submarine, returned 1945 |
| HMT Pretoria | January 1942 | Anti-submarine, returned November 1945 |
| HMT Pride O'Moray | 1941 | Harbor service, returned 1945 |
| HMT Prime | October 1939 | Harbor service, returned 1945 |
| HMT Primevere | December 1939 | Harbor service, returned 1946 |
| HMT Primordial | 1941 | Harbor service, returned 1945 |
| HMT Prince De Liege | September 1940 | Boom defense vessel, returned 1945 |
| HMT Prince Leo | June 1940 | Minesweeper, balloon barrage vessel, returned 1945 |
| HMT Princess Mary | 1940 | Minesweeper, returned 1945 |
| HMT Principal | 1940 | Auxiliary patrol, returned 1945 |
| HMT Progress | 1940 | Harbor service, returned 1945 |
| HMT Promotive | October 1939 | Auxiliary patrol, mined in Loch Ewe 23 December 1939 |
| HMT Prospects Ahead | December 1939 | Minesweeper, returned January 1946 |
| HMT Protea | June 1941 | Minesweeper, returned December 1946 |
| HMT Pyrope | August 1939 | Minesweeper, bombed, Thames Estuary 12 August 1940 |
Q
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Quercia | August 1942 | Esso, auxiliary patrol, returned December 1945 |
| HMT Quest | November 1940 | Harbor service, returned October 1945 |
| HMT Quiet Waters | September 1939 | Mine-watching, target service, returned February 1946 |
| HMT Quintia | May 1940 | Mobile wiping unit, returned July 1946 |
R
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Rachel Flett | December 1939 | Harbor service, returned January 1946 |
| HMT Radnor Castle | August 1939 | Minesweeper, scrapped May 1947 |
| HMT Raetia | August 1939 | Auxiliary patrol, Esso, returned February 1946 |
| HMT Raglan Castle | August 1939 | Minesweeper, auxiliary patrol, sold September 1947 |
| HMT Rahman | 1940 | Minesweeper, lost by unknown cause at Batavia 1 March 1942 |
| HMT Rainstorm | October 1941 | Minesweeper, returned November 1945 |
| HMT Ralco | October 1939 | Auxiliary patrol, returned January 1940 |
| HMT Randfontein | September 1941 | Minesweeper, returned April 1946 |
| HMT Ratapiko | July 1940 | Minesweeper, returned December 1945 |
| HMT Raymond | August 1940 | Balloon barrage vessel, target service, returned November 1945 |
| HMT Raymont | November 1939 | Minesweeper, returned March 1946 |
| HMT Ray Of Hope | 1939 | Minesweeper, mined, Thames Estuary 10 December 1939 |
| HMT Rayon D'Or | 1940 | Minesweeper, returned 1945 |
| HMT Reboundo | September 1940 | Minesweeper, returned December 1945 |
| HMT Receptive | April 1940 | Minesweeper, mined, Thames Estuary 3 July 1941 |
| HMT Recoil | May 1940 | Anti-submarine, mined in the Channel 28 September 1940 |
| HMT Recono | November 1939 | Minesweeper, returned July 1945 |
| HMT Recordo | October 1939 | Auxiliary patrol, returned January 1940 |
| HMT Red Gaunlet | August 1939 | Minesweeper, torpedoed by E-boat, North Sea 5 August 1943 |
| HMT Red Sky | November 1939 | Minesweeper, exam, returned March 1946 |
| HMT Reed | November 1939 | Auxiliary patrol, Minesweeper, mined, Thames Estuary 7 November 1940 |
| HMT Reflect | February 1941 | Exam, returned March 1945 |
| HMT Reformo | 1941 | Harbor service, returned 1946 |
| HMT Refraction | November 1939 | Minesweeper, returned March 1945 |
| HMT Refundo | November 1939 | Minesweeper, mined off Harwich 18 December 1940 |
| HMT Regal | September 1939 | Anti-submarine, sold 1945 |
| HMT Regardo | November 1939 | Minesweeper, Esso, returned 1945 |
| HMT Rehearo | September 1940 | Minesweeper, returned December 1945 |
| HMT Reids | December 1939 | Den layer, Auxiliary patrol, returned December 1945 |
| HMT Reighton Wyke | August 1939 | Anti-submarine, returned December 1945 |
| HMT Reine Des Flots | October 1940 | Anti-submarine, returned 1946 |
| HMT Relonzo | November 1939 | Minesweeper, mined in the Mersey 20 January 1941 |
| HMT Remexo | September 1939 | Minesweeper, returned December 1945 |
| HMT Remillo | April 1940 | Dan layer, auxiliary patrol, mined in the Humber 27 February 1941 |
| HMT Renaissance | 1940 | Auxiliary patrol, returned 1945 |
| HMT Renascent | November 1939 | Minesweeper, returned January 1946 |
| HMT Rene | January 1940 | Harbor service, returned May 1946 |
| HMT Renzo | November 1939 | Minesweeper, returned October 1945 |
| HMT Reporto | October 1939 | Auxiliary patrol, returned October 1945 |
| HMT Resistance | August 1940 | Auxiliary patrol, returned 1945 |
| HMT Resmilo | September 1940 | Minesweeper, bombed at Peterhead 20 June 1941 |
| HMT Resolvo | November 1939 | Minesweeper, mined, Thames Estuary 12 October 1940 |
| HMT Resound | August 1940 | Minesweeper, returned January 1946 |
| HMT Resparko | November 1939 | Minesweeper, bombed at Falmouth 20 August 1940 |
| HMT Restart | October 1940 | Auxiliary patrol, returned May 1946 |
| HMT Restore | May 1940 | Balloon barrage vessel, returned 1945 |
| HMT Restrivo | November 1939 | Minesweeper, returned January 1945 |
| HMT Resurge | September 1940 | Harbor service, returned July 1946 |
| HMT Retako | November 1939 | Minesweeper, returned 1945 |
| HMT Retriever | January 1941 | Anti-submarine, returned July 1946 |
| HMT Returno | November 1939 | Minesweeper, Esso, returned 1945 |
| HMT Revello | November 1939 | Minesweeper, returned 1944 |
| HMT Reverberation | November 1939 | Auxiliary patrol, returned February 1945 |
| HMT Riano | April 1944 | Auxiliary patrol, returned October 1944 |
| HMT Riant | November 1939 | Auxiliary patrol, foundered off west coast of Scotland 25 January 1940 |
| HMT Richard Bennett | September 1939 | Minesweeper, returned May 1940 |
| HMT Richard Crofts | August 1939 | Minesweeper, returned August 1945 |
| HMT Rifsnes | August 1939 | Minesweeper, bombed off Ostend 20 May 1940 |
| HMT Rig | December 1939 | Minesweeper, auxiliary patrol, returned November 1945 |
| HMT Righto | September 1939 | Minesweeper, dan layer, returned November 1944 |
| HMT Rigoletto | April 1940 | Balloon barrage vessel, Esso, returned July 1945 |
| HMT Rime | December 1939 | Minesweeper, returned November 1945 |
| HMT Rinovia | August 1939 | Minesweeper, mined off Falmouth 2 November 1940 |
| HMT Rising Sea | 1941 | Harbor service, returned 1945 |
| HMT Riskato | June 1940 | Auxiliary patrol, returned May 1946 |
| HMT Risor | July 1940 | Anti-submarine, air/sea rescue, returned 1945 |
| HMT Ristango | June 1940 | Boom gate vessel, lost in collision with boom at Sheerness 14 November 1940 |
| HMT River Annan | November 1939 | Boom gate vessel, returned November 1945 |
| HMT River Clyde | August 1939 | Minesweeper, mined off Aldeburgh 5 August 1940 |
| HMT River Esk | June 1940 | Auxiliary patrol, returned July 1945 |
| HMT River Garry | August 1939 | Exam, returned July 1945 |
| HMT River Leven | August 1939 | Exam, Esso, returned March 1945 |
| HMT River Lossie | June 1940 | Auxiliary patrol, returned February 1945 |
| HMT River Ness | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT River Spey | April 1940 | Dan layer, Auxiliary patrol, Minesweeper, returned November 1944 |
| HMT Riviere | April 1940 | Balloon barrage vessel, returned November 1944 |
| HMT Robert Bowen | August 1939 | Minesweeper, bombed off Aberdeen 9 February 1940 |
| HMT Robert Hastie | November 1939 | Dan layer, Auxiliary patrol, air/sea rescue, returned January 1946 |
| HMT Robert Stroud | June 1940 | Minesweeper, returned April 1946 |
| HMT Robinson | July 1940 | Minesweeper, returned April 1946 |
| HMT Rockall | February 1940 | Minesweeper, returned July 1944 |
| HMT Roche Bonne | July 1940 | Minesweeper, bombed off the Lizard 7 April 1941 |
| HMT Roche Velen | November 1939 | Minesweeper, returned December 1945 |
| HMT Rodino | 1940 | Minesweeper, bombed off Dover 27 July 1940 |
| HMT Roger Blonde | October 1940 | Boom defense vessel, returned October 1945 |
| HMT Roger Robert | July 1940 | Auxiliary patrol, returned September 1945 |
| HMT Rolls Royce | December 1939 | Minesweeper, returned January 1946 |
| HMT Romany Rose | June 1940 | Auxiliary patrol, harbor service, September 1945 |
| HMT Rondeveli | November 1939 | Minesweeper, returned May 1946 |
| HMT Ronso | January 1942 | Minesweeper, Esso, returned March 1946 |
| HMT Roodepoort | April 1940 | Minesweeper, returned February 1946 |
| HMT Rosa | October 1940 | Minesweeper, lost by unknown cause in the Clyde 11 September 1943 |
| HMT Rosa Arthur | September 1939 | Auxiliary patrol, exam, returned September 1945 |
| HMT Roseacre | January 1940 | Harbor service, returned April 1945 |
| HMT Rosebay | January 1940 | Harbor service, Pyramus 1943, returned September 1945 |
| HMT Rosebud | January 1940 | Minesweeper, returned 1945 |
| HMT Roseden | January 1940 | Auxiliary patrol, returned 1945 |
| HMT Rose Emma | December 1939 | Minesweeper, balloon barrage vessel, returned May 1945 |
| HMT Rose Haugh | November 1939 | Mobile wiping unit, returned April 1946 |
| HMT Rose Hilda | August 1939 | Minesweeper, returned April 1946 |
| HMT Rosemonde | July 1940 | Minesweeper, sunk by U-203 off Cape Race 22 January 1942 |
| HMT Rosette | July 1940 | Minesweeper, returned November 1945 |
| HMT Rose Of England | November 1939 | Minesweeper, returned 1945 |
| HMT Rose Valley | October 1939 | Contraband control, lost in collision off Scapa 16 December 1943 |
| HMT Ross Ard | November 1939 | Minesweeper, returned October 1944 |
| HMT Rotherslade | June 1940 | Minesweeper, returned May 1946 |
| HMT Rotterdam | 1941 | Minesweeper, returned May 1946 |
| HMT Roule | 1940 | Boom defense vessel, returned 1945 |
| HMT Rowan Tree | January 1940 | Minesweeper, wrecked off Lowestoft 21 November 1941 |
| HMT Roxano | November 1939 | Balloon barrage vessel, Esso, returned May 1945 |
| HMT Royallieu | November 1939 | Minesweeper, lost 1 September 1940 |
| HMT Royalo | November 1939 | Minesweeper, returned November 1944 |
| HMT Roydur | September 1939 | Anti-submarine, lost 13 February 1941 |
| HMT Rubens | August 1940 | Assigned to anti-submarine warfare on convoy protection duty. Bombed and sunk in the Atlantic by a Fw 200 Condor of KG40, 13 February 1941 |
| HMT Rudilais | September 1939 | Auxiliary patrol, Minesweeper, Esso, returned May 1946 |
| HMT Rugby | May 1940 | Minesweeper, returned July 1946 |
| HMT Runswick Bay | August 1939 | Anti-submarine, lost 20 April 1940 |
| HMT Rutlandshire | September 1939 | Anti-submarine, bombed at Namsos & beached 31 May 1940 |
S
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT St. Achilleus | August 1939 | Anti-submarine, French La Cancalaise 1939 |
| HMT St. Amandus | August 1939 | Anti-submarine, French La Orientalaise 1939, lost June 1944 |
| HMT St. Andronicus | August 1939 | Anti-submarine, lost 22 November 1941 |
| HMT St. Apollo | February 1940 | Anti-submarine, lost in collision off the Hebrides 22 November 1941 |
| HMT St. Arcadius | August 1939 | Anti-submarine, ?French La Nantaise 1939, lost 8 July 1945 |
| HMT St. Attalus | August 1939 | Anti-submarine, French La Havraise 1939, lost 27 November 1942, salved & lost 9 June 1944 |
| HMT St. Cathan | September 1939 | Anti-submarine, United States Navy, lost in collision off South Carolina 11 April 1942 |
| HMT St. Celestin | September 1939 | Boom defense vessel, returned November 1945 |
| HMT St. Donats | August 1939 | Minesweeper, lost in collision off the Humber 1 March 1941 |
| HMT St. Eloi | 1941 | Boom gate vessel, returned 1946 |
| HMT St. Elstan | September 1939 | Anti-submarine, returned December 1945 |
| HMT St. Goran | September 1939 | Anti-submarine, bombed off Namsos 3 May 1940 |
| HMT St. John Berchmans | August 1940 | Auxiliary patrol, returned 1945 |
| HMT St. Kenan | September 1939 | Anti-submarine, returned February 1946 |
| HMT St. Leonard | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT St. Loman | September 1939 | Anti-submarine, returned July 1946 |
| HMT St. Melante | August 1939 | Minesweeper, returned August 1945 |
| HMT St. Minver | December 1939 | Minesweeper, Esso, sold May 1946 |
| HMT St. Nectan | May 1940 | Auxiliary patrol, anti-submarine, returned April 1946 |
| HMT St. Olive | March 1940 | Minesweeper, returned November 1945 |
| HMT St. Wistan | May 1940 | Auxiliary patrol, Anti-submarine, returned May 1946 |
| HMT St. Zeno | March 1940 | Anti-submarine, United States Navy 1942, sold May 1946 |
| HMT Sabina | July 1940 | Auxiliary patrol September 1944 |
| HMT Sahra | October 1941 | Minesweeper, returned January 1946 |
| HMT Sailor King | 1940 | Mine recovery vessel, boom defense vessel, returned 1945 |
| HMT Saint Pierre II | July 1940 | lost, probably Plymouth area? 29 July 1940 |
| HMT Salpa | 1940 | Minesweeper, returned 1946 |
| HMT Salvini | April 1940 | Balloon barrage vessel, Esso, returned 1945 |
| HMT Sambhur | November 1940 | Auxiliary patrol, wrecked off Colombo 5 May 1942 |
| HMT Samuel Benbow | September 1940 | Minesweeper, returned 1946 |
| HMT Sandringham | August 1939 | ?Minesweeper, returned July 1946 |
| HMT Sandstorm | November 1941 | Minesweeper, returned November 1944 |
| HMT Sangarius | April 1940 | Auxiliary patrol, returned April 1946 |
| HMT Sanson | November 1939 | Minesweeper, Esso, returned September 1946 |
| HMT Sansonette | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Santa Maria | August 1940 | Balloon barrage vessel, returned September 1945 |
| HMT Santa | October 1941 | Minesweeper, mined off La Maddalena 23 November 1943 |
| HMT Saon | August 1939 | Anti-submarine, sold 1945 |
| HMT Sarah A. Purdy | February 1940 | Balloon barrage vessel, returned November 1944 |
| HMT Sarah Hide | November 1939 | Minesweeper, auxiliary patrol, returned January 1946 |
| HMT Sarba | November 1939 | Boom defense vessel, returned July 1946 |
| HMT Sargon | August 1939 | Minesweeper, returned July 1945 |
| HMT Sarka | October 1941 | Minesweeper, sold 1946 |
| HMT Sarna | March 1940 | Minesweeper, mined in the Suez Canal 25 February 1941 |
| HMT Saronta | June 1940 | Minesweeper, returned December 1945 |
| HMT Sarpedon | June 1940 | Auxiliary patrol, Minesweeper, return July 1945 |
| HMT Sasebo | August 1939 | Minesweeper, returned February 1946 |
| HMT Sata | August 1939 | Minesweeper, December 1945 |
| HMT Satsa | October 1941 | Minesweeper, returned December 1945 |
| HMT Saturn | November 1939 | Minesweeper, Esso, returned December 1945 |
| HMT Saturnus | 1940 | Balloon barrage vessel, wrecked off the Isle of Man 1 May 1941 |
| HMT Saurian | June 1940 | Minesweeper, Auxiliary patrol, returned November 1945 |
| HMT Sauveur Du Monde | August 1940 | Auxiliary patrol, returned 1945 |
| HMT Sawfly | August 1939 | Minesweeper, returned October 1945 |
| HMT Saxonia | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Scalby Wyke | October 1939 | Anti-submarine, returned October 1945 |
| HMT Scarlet Thread | September 1939 | Harbor service, returned September 1946 |
| HMT Scarron | June 1940 | Minesweeper, returned December 1945 |
| HMT Scomber | May 1940 | Boom defense vessel, sold February 1947 |
| HMT Scotch Thistle | November 1939 | Mine recovery vessel, wrecked, Thames Estuary 7 October 1940 |
| HMT Scottish | October 1939 | Anti-submarine, returned 1945 |
| HMT Scourge | November 1939 | Minesweeper, Skyrocket 1943, returned May 1946 |
| HMT Seafarer | November 1939 | Auxiliary patrol, returned 1945 |
| HMT Sea Gleaner | July 1940 | Block ship, returned March 1944 |
| HMT Sea Holly | November 1939 | Minesweeper, returned June 1946 |
| HMT Sea King | August 1939 | Minesweeper, mined off Grimsby 9 October 1940 |
| HMT Sealyham | April 1940 | Anti-submarine, returned June 1945 |
| HMT Sea Mist | February 1940 | Minesweeper, returned December 1945 |
| HMT Sea Monarch | January 1940 | Boom defense vessel, returned June 1946 |
| HMT Seddon | June 1940 | Auxiliary patrol, Minesweeper Fly 1943, returned February 1946 |
| HMT Sedock | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Sedgefly | September 1939 | Anti-submarine, mined off the Tyne 16 December 1919 |
| HMT Sedulous | May 1940 | Balloon barrage vessel, exam, returned October 1945 |
| HMT Seksern | October 1940 | Minesweeper, returned April 1946 |
| HMT Selma | November 1941 | Minesweeper, Anti-submarine, returned March 1946 |
| HMT Semnos | November 1939 | Dan layer, auxiliary patrol, returned October 1945 |
| HMT Senateur Duhamel | January 1941 | Anti-submarine, United States Navy, lost in collision off Wilmington 6 May 1942 |
| HMT Serapion | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Sethon | June 1940 | Minesweeper, returned October 1945 |
| HMT Setter | June 1940 | Anti-submarine, returned October 1945 |
| HMT Settsu | January 1940 | Boom defense vessel, returned 1946 |
| HMT Sevra | March 1940 | Minesweeper, mined off Falmouth 6 November 1940 |
| HMT Shamrock | November 1939 | De-gaussing vessel, returned December 1944 |
| HMT Shandwich | January 1940 | Dan layer, Minesweeper, returned November 1945 |
| HMT Sheldon | May 1940 | Auxiliary patrol, Esso, returned December 1944 |
| HMT Sheperd Lad | August 1939 | Minesweeper, harbor service, returned April 1946 |
| HMT Shera | March 1940 | Minesweeper, Russian 1942, foundered in the Barents Sea 9 March 1942 |
| HMT Sheraton | June 1940 | Minesweeper, returned September 1944 |
| HMT Shielburn | March 1944 | Esso, returned October 1944 |
| HMT Shika | March 1940 | Minesweeper, Russian 1942 |
| HMT Shila | February 1940 | Dan layer, target service, returned March 1946 |
| HMT Shipmates | November 1939 | Flare drifter, bombed at Dover 14 November 1940 |
| HMT Shooting Star | November 1941 | Minesweeper, returned 1946 |
| HMT Shova | March 1940 | Dan layer, target service, sold March 1946 |
| HMT Shusa | March 1940 | Minesweeper, Russian 1942, lost on passage to North Russia 20 November 1942 |
| HMT Sicyon | November 1939 | Minesweeper, returned July 1946 |
| HMT Sidney Smith | 1940 | Minesweeper, Parktown 1942, lost 21 June 1942 |
| HMT Siesta | 1940 | Minesweeper, Esso, Adelph 1944, returned 1945 |
| HMT Sigfra | December 1941 | Anti-submarine, sold March 1946 |
| HMT Signa | February 1940 | Dan layer, returned February 1945 |
| HMT Signal | September 1939 | Minesweeper, returned 1944 |
| HMT Silanian | January 1940 | Boom defense vessel, returned December 1945 |
| HMT Silicia | August 1939 | Minesweeper, mined off the Humber 8 May 1941 |
| HMT Silja | March 1940 | Minesweeper, Russian 1942, returned March 1947 |
| HMT Silva | February 1940 | Minesweeper, traffic control, returned 1945 |
| HMT Silver Crest | October 1939 | Minesweeper, FAA safety vessel, returned February 1945 |
| HMT Silver Dawn | October 1939 | Minesweeper, returned October 1945 |
| HMT Silver Dyke | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Silver Prince | 1940 | Harbor service, Skirmisher 1914, returned 1945 |
| HMT Silver Seas | November 1939 | Minesweepers, returned August 1944 |
| HMT Silver Sky | December 1939 | Exam, returned February 1946 |
| HMT Silver Spray | November 1939 | Minesweeper, returned ? |
| HMT Simbra | December 1941 | Anti-submarine, sold September 1946 |
| HMT Simmerson | July 1940 | Auxiliary patrol, returned June 1946 |
| HMT Simpson | June 1940 | Minesweeper, returned December 1945 |
| HMT Sindonis | September 1939 | Anti-submarine, bombed at Tobruk 29 May 1941 |
| HMT Sioux | August 1940 | Boom gate vessel, Indian 1944, returned 1945 |
| HMT Sir E. P. Wills | September 1939 | Exam, returned August 1945 |
| HMT Sir John Lister | September 1939 | Minesweeper, returned April 1945 |
| HMT Sirius | June 1940 | Auxiliary patrol, laid up December 1941 |
| HMT Sirra | March 1940 | Minesweeper, returned April 1946 |
| HMT Sisapon | September 1939 | Minesweeper, mined off Harwich 12 June 1940 |
| HMT Skudd 3 | November 1940 | Minesweeper, bombed at Tobruk 27.8341 |
| HMT Skudd 4 | November 1940 | Minesweeper, Spate 1944, returned March 1945 |
| HMT Skudd 5 | November 1940 | Minesweeper, Surge 1944, returned March 1945 |
| HMT Skudd 6 | July 1940 | Minesweeper, Sleet 1944, returned 1945 |
| HMT Slebech | December 1939 | Esso, returned January 1946 |
| HMT Sluga | March 1940 | Minesweeper, returned April 1946 |
| HMT Smalvlei | June 1940 | Anti-submarine, returned May 1946 |
| HMT Snakefly | September 1939 | Mine layer, returned October 1945 |
| HMT Snap | 1940 | Dan layer, returned 1945 |
| HMT Sobkra | 1941 | Anti-submarine, returned September 1946 |
| HMT Soetvlei | July 1940 | Mine weeper, returned June 1946 |
| HMT Soika | April 1940 | Minesweeper, returned October 1945 |
| HMT Soizic | July 1940 | Auxiliary patrol, lost 20 March 1941 |
| HMT Sojourner | January 1940 | Auxiliary patrol, returned 1945 |
| HMT Solomon | August 1939 | Minesweeper, mined north of Cromer 1 April 1942 |
| HMT Solon | November 1939 | Minesweeper, returned January 1946 |
| HMT Solstice | December 1939 | Minesweeper, submarine tender, returned September 1946 |
| HMT Solvra | 1941 | Anti-submarine, returned September 1946 |
| HMT Sondra | December 1941 | Anti-submarine, returned October 1945 |
| HMT Sonnwblom | 1941 | Minesweeper, returned November 1946 |
| HMT Sonny Boy | June 1940 | Harbor service, returned August 1945 |
| HMT Sophie Francois | October 1940 | Auxiliary patrol, returned October 1945 |
| HMT Soranus | October 1940 | Minesweeper, returned October 1945 |
| HMT Sorsra | December 1941 | Anti-submarine, returned September 1946 |
| HMT Sotra | September 1939 | Minesweeper, returned September 1946 |
| HMT Soubrette | August 1940 | Minesweeper, lost 29 January 1942 |
| HMT Southcoates | June 1940 | Minesweeper, returned April 1945 |
| HMT South Sea | 1940 | Auxiliary patrol, returned November 1945 |
| HMT Southern Barrier | October 1940 | Minesweeper, lost 19 December 1942 |
| HMT Southern Breeze | March 1940 | Minesweeper, returned May 1946 |
| HMT Southern Chief | March 1940 | Anti-submarine, returned January 1946 |
| HMT Southern Field | March 1940 | Anti-submarine, sold February 1946 |
| HMT Southern Floe | March 1940 | Minesweeper, returned April 1946 |
| HMT Southern Flower | March 1940 | Anti-submarine, sunk by U-1022 off Iceland 11 February 1941 |
| HMT Southern Foam | March 1940 | Anti-submarine, lost 3 March 1945 |
| HMT Southern Gem | March 1940 | Minesweeper, returned January 1946 |
| HMT Southern Isle | March 1940 | Anti-submarine, returned April 1945 |
| HMT Southern Maid | March 1940 | Anti-submarine, returned May 1946 |
| HMT Southern Pride | March 1940 | Anti-submarine, returned May 1946 |
| HMT Southern Sea | March 1940 | Anti-submarine, lost in collision with SS Wahine in New Zealand waters 16 June 1944 |
| HMT Southern Shore | March 1940 | Anti-submarine, returned May 1946 |
| HMT Southern Spray | March 1940 | Anti-submarine, returned January 1946 |
| HMT Southern Star | March 1940 | Anti-submarine, returned November 1945 |
| HMT Southern Wave | March 1940 | Anti-submarine, returned January 1946 |
| HMT Southward Ho | 1944 | Anti-submarine, returned December 1945 |
| HMT Spaniard | September 1939 | Esso, returned 1945 |
| HMT Spaniel | April 1940 | Anti-submarine, lost 5 December 1942 |
| HMT Sparholt | 1940 | Anti-submarine, returned April 1945 |
| HMT Spectrum | September 1939 | Mooring vessel, lost 13 March 1942 |
| HMT Speranza | December 1939 | Harbor service, returned August 1945 |
| HMT Spesaurea | 1940 | Auxiliary patrol, returned August 1946 |
| HMT Spesmelior | October 1939 | Harbor service, returned 1945 |
| HMT Sphene | August 1939 | Harbor service, returned April 1946 |
| HMT Spider | 1941 | Anti-submarine, returned 1945 |
| HMT Spina | February 1940 | Mobile wiping unit, sold 1946 |
| HMT Sposa | April 1940 | Dan layer, returned March 1945 |
| HMT Spindrift | April 1940 | Anti-submarine, returned April 1945 |
| HMT Sprig O'Heather | April 1940 | Anti-submarine, motor launch, San 1946, Skilpad 1951 |
| HMT Springs | November 1940 | Balloon barrage vessel, harbor service 1942, returned February 1946 |
| HMT Spurs | September 1939 | Minesweeper, returned May 1946 |
| HMT Squall | November 1941 | Anti-submarine, sold 1945 |
| HMT Stafnes | September 1939 | Dan layer, returned 1946 |
| HMT Stalberg | December 1939 | Anti-submarine, sold 1945 |
| HMT Standerton | October 1940 | Boom defense vessel, returned 1945 |
| HMT Stanislas Poumet | July 1940 | Anti-submarine, returned February 1946 |
| HMT Star XVI | October 1941 | DGV, returned 1945 |
| HMT Starlight Rays | November 1939 | Minesweeper, returned November 1945 |
| HMT Star of Britain | June 1940 | Minesweeper, exam, submarine tender, returned 1946 |
| HMT Star of Deveron | November 1939 | Minesweeper, Esso, returned November 1945 |
| HMT Star of Freedom | December 1939 | Minesweeper, lost 30 September 1941 |
| HMT Star of Hope | 1939 | Auxiliary patrol, returned 1945 |
| HMT Star Of Liberty | September 1940 | Exam, returned January 1946 |
| HMT Star Of Light | October 1940 | Examination service, returned 1946 |
| HMT Star of Orkney | August 1939 | Minesweeper, returned September 1946 |
| HMT Star of Pentland | January 1940 | Minesweeper, returned May 1946 |
| HMT Star of the Realm | January 1940 | Boom defense vessel, sold May 1946 |
| HMT Star of the Wave | February 1940 | Minesweeper, returned May 1946 |
| HMT Staunch | November 1939 | Minesweeper, Esso, returned November 1944 |
| HMT Staunton | May 1940 | Auxiliary patrol, mined, Thames Estuary 28 July 1940 |
| HMT Steenberg | November 1940 | Minesweeper, returned May 1946 |
| HMT Stefa | March 1940 | Minesweeper, Russian 1942-46, returned May 1947 |
| HMT Stella Canopus | October 1939 | Anti-submarine, returned November 1945 |
| HMT Stella Capella | September 1939 | Anti-submarine, sunk by U-701 off Iceland 11 March 1942 |
| HMT Stella Carina | May 1940 | Anti-submarine, returned May 1945 |
| HMT Stella Dorado | September 1939 | Anti-submarine, torpedoed by E-boat off Dunkirk 1 June 1940 |
| HMT Stella Leonis | September 1940 | Minesweeper, Dan layer, returned May 1945 |
| HMT Stella Orion | September 1939 | Minesweeper, mined, Thames Estuary 11 November 1940 |
| HMT Stella Pegasi | September 1939 | Anti-submarine, returned April 1945 |
| HMT Stella Polaris | May 1940 | Auxiliary patrol, anti-submarine, United States Navy, returned October 1945 |
| HMT Stella Rigel | September 1939 | Minesweepers, Dan layer, returned July 1945 |
| HMT Stella Sirius | September 1939 | Anti-submarine, bombed by French aircraft at Gibraltar 25 September 1940 |
| HMT Stellenberg | November 1940 | Minesweeper, returned May 1946 |
| HMT Stephens | November 1939 | Harbor service, returned April 1946 |
| HMT Sternus | October 1939 | Minesweeper, returned April 1945 |
| HMT Stina | March 1940 | Minesweeper, returned February 1946 |
| HMT Stoke City | September 1939 | Anti-submarine, returned 1945 |
| HMT Stone Fly | August 1939 | Minesweeper, returned September 1945 |
| HMT Stora | June 1940 | Anti-submarine, returned March 1947 |
| HMT Stormcentre | 1940 | Minesweepers, sold August 1946 |
| HMT Stormwrack | April 1942 | Minesweeper, returned November 1945 |
| HMT Strathalladale | 1944 | Esso, returned October 1944 |
| HMT Strathavon | December 1941 | Balloon barrage vessel, returned November 1945 |
| HMT Strathbeg | December 1939 | Harbor service, returned April 1946 |
| HMT Strathborve | August 1940 | Minesweeper, mined off the Humber 6 September 1941 |
| HMT Strathderry | February 1940 | Minesweeper, Auxiliary patrol, returned January 1946 |
| HMT Strathdevon | January 1940 | Minesweeper, auxiliary patrol, returned January 1946 |
| HMT Strathella | July 1940 | Auxiliary patrol, returned 1945 |
| HMT Strathelliot | January 1940 | Auxiliary patrol, returned January 1946 |
| HMT Strathfinella | April 1944 | Esso, returned October 1944 |
| HMT Strathgarry | April 1940 | Dan layer, Auxiliary patrol, returned December 1945 |
| HMT Strathmaree | November 1939 | Dan layer, auxiliary patrol, returned November 1945 |
| HMT Strathmartin | 1944 | Esso, returned 1945 |
| HMT Strathrannoch | April 1940 | Minesweeper, Auxiliary patrol, mooring vessel, returned July 1945 |
| HMT Strathspey | November 1939 | Boom defense vessel, returned January 1946 |
| HMT Strathugie | January 1940 | Minesweeper, returned September 1945 |
| HMT Strenuous | 1940 | Minesweeper, harbor service, returned January 1946 |
| HMT Strephon | August 1940 | Minesweeper, returned February 1946 |
| HMT Strijdt Voor Christus | June 1940 | Auxiliary patrol, to MoWT April 1942 |
| HMT Strive | November 1939 | Minesweeper, returned December 1945 |
| HMT Sturdee | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Sturton | August 1939 | Minesweepers, returned October 1944 |
| HMT Sublime | July 1940 | Examination service, returned November 1945 |
| HMT Suderroy I | 1941 | Minesweepers, Parktown 1942, returned April 1946 |
| HMT Suderoy IV | August 1940 | Minesweeper, returned November 1945 |
| HMT Suderoy V | August 1940 | Minesweeper, returned November 1945 |
| HMT Suderoy VI | August 1940 | Minesweeper, returned November 1945 |
| HMT Sukha | March 1940 | Minesweeper, returned November 1945 |
| HMT Sulla | 1940 | Minesweeper, Russian 1942, lost by unknown cause, Barents Sea March 1942 |
| HMT Suma | August 1939 | Minesweeper, returned March 1946 |
| HMT Sumba | 1940 | Minesweeper, Russian 1942-46, returned March 1947 |
| HMT Summer Rose | 1940 | Auxiliary patrol, mined off Sunderland 13 October 1940 |
| HMT Sunbeam II | November 1939 | Torpedo recovery vessel, returned November 1945 |
| HMT Sunburst | 1940 | Minesweeper, sold 1946 |
| HMT Sunlight | November 1939 | Minesweeper, wreck dispersal vessel, returned February 1946 |
| HMT Sunny Bird | October 1939 | Torpedo recovery vessel, returned January 1946 |
| HMT Sunnyside Girl | December 1939 | Anti-submarine, returned February 1946 |
| HMT Sunny Vale | September 1939 | Attached FAA, returned January 1946 |
| HMT Sunrise | August 1940 | Boom defense vessel, sold 1946 |
| HMT Sunspot | June 1940 | Minesweeper, returned 1945 |
| HMT Supporter | December 1939 | Harbor service, wrecked near Newhaven 5 November 1944 |
| HMT Sureaxe | August 1942 | Target service, returned November 1945 |
| HMT Susarion | June 1940 | Auxiliary patrol, bombed off the Humber 7 May 1941 |
| HMT Suzanne Adrienne | June 1940 | Auxiliary patrol, to Air Ministry November 1943 |
| HMT Suzette | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Sussex County | November 1939 | Auxiliary patrol, returned April 1945 |
| HMT Sustain | March 1940 | Harbor service, returned 1946 |
| HMT Sutherness | June 1940 | Auxiliary patrol, Minesweeper, returned September 1945 |
| HMT Svana | April 1940 | Minesweeper, bombed by Italian aircraft at Alexandria 8 April 1942 |
| HMT Svega | March 1940 | Minesweeper, Russian 1942 |
| HMT Sverre | May 1941 | KBV, returned 1945 |
| HMT Svolvaer | July 1940 | Anti-submarine, returned 1945 |
| HMT Swallow | July 1940 | Harbor service, returned 1945 |
| HMT Swan II | April 1940 | Minesweeper, Boiler cleaning ship, returned April 1945 |
| HMT Swansea Castle | July 1940 | Minesweeper, returned February 1946 |
| HMT Swartberg | September 1939 | Minesweeper, returned May 1946 |
| HMT Sweet Promise | November 1939 | Minesweeper, returned November 1945 |
| HMT Swift Wing | November 1939 | Minesweeper, returned April 1946 |
| HMT Swirl | 1942 | Auxiliary patrol, returned 1945 |
| HMT Swona | April 1940 | Minesweeper, returned March 1946 |
| HMT Sydoslandet | 1940 | Anti-submarine, wrecked at the mouth of the Umgeni River 6 April 1942 |
| HMT Syrian | April 1940 | Minesweeper, returned January 1946 |
| HMT Syvern | January 1941 | Anti-submarine, bombed between Crete & Alexandria 27 May 1941 |
T
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Taipo | November 1939 | Minesweeper, Esso, returned November 1944 |
| HMT Takla | September 1939 | Minesweeper, returned 1945 |
| HMT Tamora | August 1939 | Minesweeper, returned March 1946 |
| HMT Tarana | August 1940 | Auxiliary patrol, returned 1945 |
| HMT Tartan | November 1939 | Dan layer, auxiliary patrol, Minesweeper, returned July 1945 |
| HMT Tartarin | August 1940 | Minesweeper, returned March 1945 |
| HMT Teal | August 1940 | Boom defense vessel, sold March 1946 |
| HMT Tea Rose | January 1940 | Anti-submarine, returned December 1945 |
| HMT Teazer | November 1939 | Auxiliary patrol, returned February 1940 |
| HMT Tehana | August 1939 | Minesweeper, wreck dispersal vessel, returned March 1946 |
| HMT Tekoura | October 1939 | Anti-submarine August 1945 |
| HMT Teniers | August 1940 | Balloon barrage vessel, returned September 1945 |
| HMT Teroma | August 1939 | Minesweeper, returned March 1945 |
| HMT Tervani | June 1940 | Auxiliary patrol, Minesweeper, sunk by Acciaio off Algeria 7 February 1943 |
| HMT Tessie | May 1940 | TRV, sold 1946 |
| HMT Tewara | August 1939 | Minesweeper, returned June 1946 |
| HMT Texas | 1940 | Minesweeper, Lost in collision off Jamaica 19 July 1944 |
| HMT Thains | July 1940 | Harbor service, returned June 1946 |
| HMT Thaw | December 1939 | Minesweeper, Auxiliary patrol, returned February 1946 |
| HMT The Boys | November 1939 | Flare drifter, auxiliary patrol, foundered in the Downs 14 November 1940 |
| HMT The Provost | 1940 | Anti-submarine, returned 1945 |
| HMT The Roman | December 1939 | Anti-submarine, Esso, returned August 1946 |
| HMT The Tower | November 1939 | Balloon barrage vessel, returned February 1945 |
| HMT The Way | November 1939 | Boom defense vessel, returned July 1945 |
| HMT Their Merit | August 1939 | Minesweeper, returned November 1945 |
| HMT Thermopylae | December 1939 | Minesweeper, auxiliary patrol, returned April 1946 |
| HMT Thistle | April 1940 | Exam, mined off Lowestoft 8 May 1941 |
| HMT Thomas Aloft | August 1939 | Minesweeper, returned April 1946 |
| HMT Thomas Bartlett | November 1939 | Minesweeper, mined off Calais 28 May 1940 |
| HMT Thomas Connolly | November 1939 | Boom defense vessel, mined off Sheerness 17 December 1940 |
| HMT Thomas Currell | August 1939 | Minesweeper, returned November 1945 |
| HMT Thomas Leeds | August 1939 | Minesweeper, returned November 1945 |
| HMT Thomsons | November 1939 | Minesweeper, harbor service, returned February 1946 |
| HMT Thora | June 1940 | Balloon barrage vessel, lost in collision with boom at Grimsby 26 April 1943 |
| HMT Thorbryn | May 1941 | Anti-submarine, bombed at Tobruk 19 August 1941 |
| HMT Thorgrim | May 1941 | Anti-submarine, bombed by Italian aircraft at Alexandria 8 April 1942 |
| HMT Thornwick Bay | August 1939 | Anti-submarine, sold April 1945 |
| HMT Thorodd | April 1940 | Minesweeper, returned August 1945 |
| HMT Thorvard | April 1940 | Minesweeper, returned 1946 |
| HMT Three Kings | November 1939 | Minesweeper, returned September 1944 |
| HMT Thrifty | December 1939 | Minesweeper, returned April 1946 |
| HMT Thrush | November 1939 | Harbor service, Ambition 1944, returned April 1946 |
| HMT Thunderstone | April 1940 | Balloon barrage vessel, returned April 1946 |
| HMT Thuringia | August 1939 | Anti-submarine, mined, North Sea 28 May 1940 |
| HMT Tilbury Ness | September 1939 | Minesweeper, bombed, Thames Estuary 1 November 1940 |
| HMT Tilly Duff | November 1939 | Minesweeper, returned August 1946 |
| HMT Tirade | May 1942 | Auxiliary patrol |
| HMT Tocsin | November 1939 | Minesweeper, Esso, returned September 1945 |
| HMT Token | 1940 | Minesweeper, wrecked in Skerry Sound 23 December 1941 |
| HMT Tokyo II | October 1939 | Minesweeper, Esso, returned 1946 |
| HMAS Tongkol | September 1939 | Minesweeper, returned 1945 |
| HMT Torbay II | 1940 | Auxiliary patrol, bombed off Dover 1 January 1940 |
| HMT Tordonn | 1941 | Anti-submarine, returned May 1946 |
| HMT Toreador | 1940 | Balloon barrage vessel, returned 1945 |
| HMT Tornado | April | Minesweeper, sold April 1946 |
| HMT Torteau | 1940 | Minesweeper, boom gate vessel, returned 1945 |
| HMT Touchstone | 1940 | Minesweeper, returned 1945 |
| HMT Tradewind | 1940 | Balloon barrage vessel, harbor service, returned 1945 |
| HMT Trang | 1940 | Minesweeper, abandoned at Singapore 14 February 1942 |
| HMT Tranio | October 1939 | Minesweeper, bombed, North Sea 26 June 1941 |
| HMT Tranquil | February 1940 | Minesweeper, lost in collision off Deal 16 June 1942 |
| HMT Transvaal | 1940 | Auxiliary patrol, Minesweeper, Esso, foundered in the Channel 18 November 1944 |
| HMT Transvaalia | 1941 | Minesweeper, Royal Hellenic Navy Evrotus 1943, returned 1946 |
| HMT Trebouliste | October 1940 | Special service, returned April 1945 |
| HMT Treern | 1941 | Minesweeper, mined in Greek waters 12 January 1945 |
| HMT T. R. Ferrens | August 1939 | Minesweeper, returned April 1945 |
| HMT Triple Alliance | November 1939 | Harbor service, returned July 1946 |
| HMT Tritrlia | November 1939 | Auxiliary patrol, returned July 1945 |
| HMT Tritonia | November 1939 | Minesweeper, returned January 1946 |
| HMT Triton | December 1939 | Auxiliary patrol, Esso, returned 1945 |
| HMT Triumph | May 1940 | Boom barrage vessel, submarine tender, returned 1945 |
| HMT Trojan | 1940 | Boom gate vessel, returned 1945 |
| HMT Tromoy | November 1940 | Minesweeper Cloudburst 1944, returned 1946 |
| HMT Trophy | November 1939 | Balloon barrage vessel, returned January 1946 |
| HMT Troup Ahead | December 1939 | Minesweeper, returned July 1946 |
| HMT True Accord | December 1939 | Auxiliary patrol, lost in collision off Gt. Yarmouth 26 December 1940 |
| HMT True Friend | October 1940 | Minesweeper, auxiliary patrol, returned February 1946 |
| HMT True Reward | 1940 | Mobile wiping unit, returned February 1946 |
| HMT True Vine | July 1940 | Boom defense vessel, returned September 1945 |
| HMT Trust | 1940 | Anti-submarine, returned 1945 |
| HMT Trustful | December 1939 | Harbor service, returned January 1946 |
| HMT Trusty Star | 1940 | Minesweeper, mined off Malta 10 June 1942 |
| HMT Tuirangi | 1942 | Minesweeper, returned 1946 |
| HMT Tumby | November 1939 | Dan layer, auxiliary patrol, Minesweeper, returned April 1945 |
| HMT Tunisian | October 1939 | Boom defense vessel, mined off Harwich 9 July 1942 |
| HMT Turcoman | August 1939 | Anti-submarine, sold 1945 |
| HMT Turffontein | 1941 | Anti-submarine, returned March 1945 |
| HMT Tweenways | November 1939 | Minesweeper, returned March 1945 |
| HMT Twinkling Star | September 1939 | Boom defense vessel, returned October 1945 |
| HMT Typhoon | June 1940 | Minesweeper, returned May 1945 |
| HMT Tyrie | March 1940 | Exam Pungent 1943, returned 1945 |
U
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Uberty | November 1939 | Minesweepers, bombed off Lowestoft 8 May 1941 |
| HMT Uberous | December 1939 | Minesweeper, wrecked in Lough Foyle 11 January 1941 |
| HMT Ugiebank | November 1939 | Auxiliary patrol, Esso, returned 1945 |
| HMT Ugie Brae | 1940 | Mobile wiping unit, returned 1946 |
| HMT Ugie Vale | November 1939 | Harbor service, returned October 1944 |
| HMT Uiver | July 1940 | Minesweeper, boom defense vessel, returned November 1945 |
| HMT Ullstein | 1941 | KBV, returned 1945 |
| HMT Unicity | December 1939 | Minesweeper, scrapped October 1943 |
| HMT Unison | 1940 | Harbor service Harmony 1943, returned 1945 |
| HMT United | 1940 | Harbor service, returned 1945 |
| HMT United Boys | November 1939 | Minesweeper, returned September 1945 |
| HMT Utilise | December 1939 | Minesweeper, returned March 1946 |
| HMT Ut Prosim | November 1939 | Flare drifter, auxiliary patrol, sunk by gunfire in Dover harbor 2 March 1943 |
| HMT Utvaer | August 1940 | Minesweeper, returned 1945 |
V
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Vaillant | August 1940 | Auxiliary patrol, boom gate vessel, returned 1945 |
| HMT Valdora | November 1939 | Minesweeper, bombed off Cromer 12 January 1940 |
| HMT Valesca | November 1939 | Minesweeper, wreck dispersal vessel, returned December 1945 |
| HMT Valmont | November 1939 | Minesweeper, November 1945 |
| HMT Van Dyck | February 1941 | Anti-submarine, returned November 1945 |
| HMT Van Oost | July 1940 | Anti-submarine, returned November 1945 |
| HMT Van Orley | March 1941 | Anti-submarine, bombed at Liverpool, salved & scrapped 4 May 1941 |
| HMT Varanga | August 1939 | Minesweeper, returned November 1945 |
| HMT Varanis | December 1939 | Minesweeper, returned November 1945 |
| HMT Vardo | July 1940 | Minesweeper, returned December 1945 |
| HMT Vascama | September 1939 | Anti-submarine, armed boarding vessel, Portuguese 1939-44, sold April 1945 |
| HMT Velia | May 1940 | mined off Harwich 19 October 1940 |
| HMT Venosta | December 1939 | Minesweeper, boom gate vessel, returned 1945 |
| HMT Ventose | August 1940 | Minesweeper, exam, returned July 1944 |
| HMT Vercheres | 1939 | Minesweeper, lost by fire at Sorel, Quebec 9 May 1943 |
| HMT Vereeniging | 1941 | Anti-submarine, returned March 1945 |
| HMT Vernal | November 1939 | Minesweeper, torpedo recovery vessel, scrapped January 1946 |
| HMT Vers Le Destin | August 1940 | Auxiliary patrol, returned 1945 |
| HMT Vestfjiord | 1940 | Auxiliary patrol, returned 1945 |
| HMT Victrix | September 1939 | Anti-submarine, returned December 1945 |
| HMT Vicereine | 1942 | Torpedo recovery vessel, returned 1945 |
| HMT Victorian | August 1939 | Anti-submarine, sold 1946 |
| HMT Vidonia | June 1940 | Auxiliary patrol, Esso, lost by unknown cause in the Channel 6 October 1944 |
| HMT Vierge De Lourdes | July 1940 | Minesweeper, returned January 1946 |
| HMT Viernoe | 1939 | Boom gate vessel, returned 1945 |
| HMT Vigiliant | June 1940 | Balloon barrage vessel, returned 1945 |
| HMT Vigilant | 1940 | Auxiliary patrol, mine-watching, returned 1945 |
| HMT Vigra | 1941 | Ferry service, returned 1945 |
| HMT Vikingbank | 1940 | Minesweeper, returned 1945 |
| HMT Viking Deeps | June 1940 | Auxiliary patrol, returned November 1944 |
| HMT Vikings | 1940 | Anti-submarine, sunk by U-542 on the coast of Syria 17 April 1942 |
| HMT Vilda | January 1940 | Boom defense vessel, returned September 1946 |
| HMT Village Belle | 1940 | Auxiliary patrol, harbor service, returned 1945 |
| HMT Vindelcia | June 1940 | Auxiliary patrol, Esso, returned December 1945 |
| HMT Vine | June 1940 | Balloon barrage vessel, returned 1945 |
| HMT Violet Flowers | November 1939 | Minesweeper, returned 1945 |
| HMT Vireo | December 1939 | Minesweeper, returned November 1943 |
| HMT Visenda | August 1939 | Anti-submarine, returned February 1946 |
| HMT Viviana | October 1939 | Anti-submarine, returned May 1946 |
| HMT Vizalma | June 1940 | Anti-submarine, sold December 1945 |
W
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Walkerdale | January 1940 | Harbor service, returned September 1945 |
| HMT Wallena | November 1939 | Minesweeper, returned November 1945 |
| HMT Walwyns Castle | November 1939 | Minesweeper, returned March 1946 |
| HMT Wardour | February 1940 | Minesweeper, returned April 1946 |
| HMT War Duke | November 1939 | Minesweeper, returned December 1944 |
| HMT War Star | 1940 | Anti-submarine, Esso, returned February 1946 |
| HMT War Wing | November 1939 | Minesweeper, returned January 1946 |
| HMT Warland | April 1940 | Auxiliary patrol, bombed, North Sea 18 February 1942 |
| HMT Warwick Deeping | September 1939 | Anti-submarine, sunk by gunfire in the Channel 12 October 1940 |
| HMT Warwickshire | August 1939 | Anti-submarine, bombed off Trondheim 30 April 1940 |
| HMT Washington | November 1939 | Minesweeper, mined, North Sea 6 December 1939 |
| HMT Watchword | 1942 | KBV, returned June 1946 |
| HMT Waterfly | September 1939 | Minesweeper, mined off Dunkirk 17 September 1942 |
| HMT Waveflower | September 1939 | Minesweeper, lost 21 October 1940 |
| HMT Weazel | November 1939 | Auxiliary patrol, lost October 1941 |
| HMT Welback | June 1940 | Minesweeper, returned January 1946 |
| HMT Welcome | 1940 | Balloon barrage vessel, returned 1944 |
| HMT Welcome Home | November 1939 | Minesweeper, returned 1945 |
| HMT Wellard | August 1939 | Anti-submarine, United States Navy, sold 1945 |
| HMT Wellsbach | August 1939 | Minesweeper, returned September 1945 |
| HMT Welwyn | 1940 | Torpedo recovery vessel, returned 1945 |
| HMT Westella | September 1939 | anti-submarine, mined off Dunkirk 2 June 1940 |
| HMT West Haven | December 1939 | Minesweeper, returned September 1945 |
| HMT West Holme | September 1939 | Harbor service, returned December 1946 |
| HMT Westlyn | 1940 | Boom defense vessel, sold May 1947 |
| HMT Western Explorer | October 1940 | Examination service, returned 1945 |
| HMT West Neuk | April 1940 | Boom barrage vessel, returned February 1943 |
| HMT Wheat Stalk | May 1940 | Harbor service, to MoWT 1942 |
| HMT Whippet | January 1941 | Anti-submarine, bombed in the Mediterranean 4 October 1941 |
| HMT Whitecap | 1941 | Auxiliary patrol |
| HMT White Daisy | April 1941 | Harbor service, lost in Scottish waters 25 September 1940 |
| HMT Whytock | February 1940 | Minesweeper, returned June 1946 |
| HMT Wigan | 1940 | Minesweeper, returned 1945 |
| HMT Willa | 1940 | Dan layer, returned 1945 |
| HMT William Bell | June 1940 | Minesweeper, returned February 1946 |
| HMT William Brady | June 1940 | Auxiliary patrol, returned February 1946 |
| HMT William Bunce | September 1939 | Minesweeper, returned January 1940 |
| HMT William Caldwell | January 1940 | Boom defense vessel, sold December 1946 |
| HMT William Cale | August 1939 | Minesweeper, returned July 1945 |
| HMT William Hallet | November 1939 | Minesweeper, mined off the Tyne 13 December 1939 |
| HMT William Hanbury | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT William Hannam | October 1939 | Boom defense vessel, returned April 1946 |
| HMT William H. Hastie | August 1940 | Exam, salvage vessel, returned July 1945 |
| HMT William Mannel | June 1940 | Minesweeper, returned November 1945 |
| HMT William Purdy | February 1940 | Balloon barrage vessel, returned October 1945 |
| HMT William Scoresby | 1939 | Minesweeper, returned January 1947 |
| HMT William Stephens | November 1939 | Minesweeper, torpedoed by E-boat off Cromer 25 October 1943 |
| HMT William Stroud | March 1944 | Esso, returned March 1945 |
| HMT William Wesney | September 1939 | Minesweeper, mined off Orfordness 7 November 1940 |
| HMT William Wilson | 1940 | Hospital drifter, returned 1945 |
| HMT Willing Boys | November 1939 | Minesweeper, returned August 1946 |
| HMT Wilson Line | 1940 | Hospital drifter, returned 1945 |
| HMT Winchat | June 1940 | Harbor service, returned 1945 |
| HMT Windsor Lad | 1940 | Minesweeper, returned 1945 |
| HMT Windward | August 1939 | Minesweeper, returned |
| HMT Windward Ho | October 1939 | Minesweeper, returned 1945 |
| HMT Whitam | November 1939 | Minesweeper, Esso, returned November 1944 |
| HMT Winifred | July 1940 | Boom tender, returned 1945 |
| HMT Withernsea | November 1939 | Minesweeper, sold March 1946 |
| HMT Wolborough | September 1939 | Anti-submarine, sold August 1945 |
| HMT Wolves | August 1939 | Anti-submarine, returned October 1945 |
| HMT Woods | November 1939 | Auxiliary patrol, returned January 1940 |
| HMT Wrangler | August 1942 | Minesweeper, returned |
| HMT Wydale | March 1940 | Exam, returned March 1946 |
| HMT Wyoming | June 1940 | Minesweeper, mined off Harwich 20 May 1944 |
| HMT Wyre | June 1940 | Boom defense vessel, returned August 1945 |
X
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Xmas Eve | October 1939 | Harbor service, returned 1945 |
| HMT Xmas Morn | August 1939 | Harbor service, returned 1945 |
| HMT Xmas Rose | November 1939 | Auxiliary patrol, mined, Thames Estuary 21 November 1940 |
Y
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Yashima | August 1939 | Minesweeper, returned April 1946 |
| HMT Yellow Hammer | April 1941 | Anti-submarine target carrier, mobile workshop, returned April 1946 |
| HMT Yezo | November 1939 | Minesweeper, wreck dispersal vessel, returned June 1946 |
| HMT Ymuiden | 1940 | Minesweeper, returned April 1946 |
| HMT York City | August 1939 | Anti-submarine, sold November 1945 |
| HMT Yorkshire Lass | November 1939 | Minesweeper, RDF tender, returned May 1946 |
| HMT Young Alfred | November 1939 | Balloon barrage vessel, returned September 1946 |
| HMT Young Cliff | November 1939 | Mine recovery vessel, returned June 1946 |
| HMT Young Ernie | December 1939 | Auxiliary patrol, lost in collision off the Tyne 18 April 1941 |
| HMT Young Fisherman | June 1940 | Auxiliary patrol, wrecked at Oban 29 November 1940 |
| HMT Young Jacob | November 1939 | Minesweeper, returned January 1946 |
| HMT Young John | 1939 | Mobile wiping unit, returned January 1946 |
| HMT Young Mun | 1939 | Auxiliary patrol, Brontosaurus 1942, returned 1946 |
| HMT Young Sid | May 1940 | Auxiliary patrol, lost in collision in the Moray Firth 10 August 1940 |
| HMT Ythan Braes | August 1942 | Auxiliary patrol, water carrier, returned February 1946 |
Z
| Ship designation | Requisitioned | Fate |
|---|---|---|
| HMT Zareba | August 1940 | Minesweeper, returned November 1944 |
| HMT Zeemeeuw | June 1940 | Auxiliary patrol, lost in collision off Gravesend, later salved 21 September 1943 |
References
- ^ "Naval Trawlers, Admiralty trawlers". battleships-cruisers.co.uk. 2012. Retrieved 31 January 2012.