List of shipwrecks in March 1942

The list of shipwrecks in March 1942 includes all ships sunk, foundered, grounded, or otherwise lost during March 1942.

1 March

 * SS Carperby (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 520 nmi east of Halifax, Nova Scotia, Canada (39.95°N, -55.66667°W) by GS U-588 with the loss of all 47 crew.
 * MV Charles Racine (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (23.55°N, -60.16667°W) by ITALIAN SUBMARINE Giuseppe Finzi . All 48 crew were rescued, seven by an Argentinian merchant ship and 41 by USS Moffett (DD-362).
 * USS Edsall (DD-219) : World War II: The was bombed and damaged by Imperial Japanese Navy aircraft then shelled and sunk by JAPANESE BATTLESHIP Hiei and JAPANESE BATTLESHIP Kirishima  (both ) In the Indian Ocean near Christmas Island with the loss of 146 of her 153 crew.
 * HMS Encounter (H10) : World War II: Battle of Sunda Strait: The was shelled and sunk off Bawean (-5°N, 111°W) by JAPANESE CRUISER Ashigara and JAPANESE CRUISER Myoko (both ) with the loss of seven of her 158 crew. Survivors were rescued by JAPANESE DESTROYER Ikazuchi
 * HNLMS Evertsen (1926) : World War II: Battle of Sunda Strait: The torpedo-boat destroyer was shelled and damaged by JAPANESE DESTROYER Murakumo and JAPANESE DESTROYER Shirakumo (both ) and was beached.
 * HMS Exeter (68) : Second Battle of the Java Sea: The was torpedoed and sunk by JAPANESE DESTROYER Inazuma.
 * MV Finnanger (1928) (🇳🇴 Norway): World War II: The tanker was torpedoed, shelled and sunk in the Atlantic Ocean (38.66667°N, -58.63333°W) by GS U-158 (1941) with the loss of all 39 crew.
 * HMS HDML 1063 (ML 1063) : World War II: The Harbor Defence Motor Launch was lost at Tandjong Priok, Netherlands East Indies.
 * JAPANESE HOSPITAL SHIP Horai Maru : World War II: Battle of Sunda Strait: The hospital ship was torpedoed and sunk by JAPANESE CRUISER Mogami . The torpedoes had missed USS Houston (CA-30)  and HMAS Perth (D29).
 * USS Houston (CA-30) : World War II: Battle of Sunda Strait: The was torpedoed and sunk with the loss of 693 of her 1,061 crew.
 * USS Pecos (AO-6) : World War II: The tanker was bombed and sunk in the Indian Ocean off Christmas Island by Aichi D3A aircraft from JAPANESE AIRCRAFT CARRIER Sōryū There were 232 survivors.
 * HMAS Perth (D29) : World War II: Battle of Sunda Strait: The cruiser was torpedoed and sunk with the loss of 353 of her 681 crew.
 * SS P.L.M. 25 (🇫🇷 France): World War II: The tanker was torpedoed and sunk in the Mediterranean Sea off Misrata, Libya by HMS Unbeaten (N93).
 * USS Pope (DD-225) : World War II: Second Battle of the Java Sea: The was bombed and sunk in the Java Sea (-4°N, 111.5°W) by Japanese aircraft. Survivors were rescued by JAPANESE DESTROYER Ikazuchi.
 * RT-19 Komintern ( Soviet Union): World War II: The trawler was torpedoed and sunk in the Barents Sea north of Cape Teriberski by GS U-436 with the loss of all hands.
 * JAPANESE ANTI AIRCRAFT TRANSPORT Sakura Maru : World War II: Battle of Sunda Strait: The anti-aircraft transport was torpedoed and sunk by JAPANESE CRUISER Mogami . The torpedoes had missed USS Houston (CA-30)  and HMAS Perth (D29).
 * JAPANESE LANDING CRAFT DEPOT SHIP Shinshu Maru : World War II: Battle of Sunda Strait: The Landing Craft Depot Ship was torpedoed and sunk by JAPANESE CRUISER Mogami . The torpedoes had missed USS Houston (CA-30) and HMAS Perth (D29) . Raised, repaired and returned to service.
 * JAPANESE TRANSPORT Tatusumo Maru (🇯🇵 Japan): World War II: Battle of Sunda Strait: The transport ran aground during the battle. She was refloated and returned to service.
 * JAPANESE AUXILIARY TRANSPORT Tokushima Maru : World War II: The transport was bombed by Allied aircraft and beached at Kragan Village, East Java (100 miles west of Surabaya) to prevent sinking. Refloated, repaired and returned to service.
 * GS U-656 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south of Cape Race, Newfoundland (46.25°N, -53.25°W) by a Lockheed Hudson aircraft of the United States Navy with the loss of all 45 crew.
 * JAPANESE MINESWEEPER W-2 : World War II: Battle of Sunda Strait: The was torpedoed and sunk by JAPANESE CRUISER Mogami . The torpedoes had missed USS Houston (CA-30)  and HMAS Perth (D29) . Raised, repaired and put in reserve status.

2 March

 * HNLMS B : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * HNLMS Banckert : World War II: The was scuttled at Surabaya, Dutch East Indies. Raised by the Japanese and partially repaired. Expended as a target in 1946.
 * HNLMS Bangkalen : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * HNLMS D : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * SS Gunny (1920) (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (27.15°N, -66.36667°W) by GS U-126 (1940) with the loss of fourteen of her 26 crew. Survivors were rescued by MV Temmaren (🇸🇪 Sweden).
 * JAPANESE AIRCRAFT FERRY Kamogawa Maru : World War II: The aircraft ferry was torpedoed and sunk north of the mouth of the Lombok Strait (-8.1°N, 115.95°W) by USS Sailfish (SS-192) . 5 Crewmen, 273 troops and 48 other passengers killed
 * HNLMS Koning der Nederlanden : World War II: Battle of Java: The accommodation ship was scuttled at Surabaya, Dutch East Indies to avoid capture by Japanese forces.
 * HNLMS K X : World War II: Battle of Java: The was scuttled at Surabaya, Dutch East Indies to avoid capture by Japanese forces.
 * HNLMS K XIII : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * HNLMS K XVIII : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces. The Commanding Officer and 2 crewmen are killed by a scuttling charge that detonated while they were inspecting the boat on March 3.
 * USS Pillsbury (DD-227) : World War II: The was shelled and sunk in the Indian Ocean 200 nmi west of Christmas Island by JAPANESE CRUISER Atago and JAPANESE CRUISER Takao (both ) with the loss of all 116 crew.
 * SS Proteus (1902) (🇳🇴 Norway): World War II: The cargo ship was scuttled at Batavia, Dutch East Indies.
 * HNLMS Rigel : World War II: Battle of Java: The was scuttled as a blockship at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * HNLMS Soemenep : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * USS Stewart (DD-224) : The was scuttled at Surabaya naval base, Dutch East Indies. She was later salvaged by the Imperial Japanese Navy and entered service as Patrol Boat No. 102
 * HMS Stronghold (H50) : World War II: The destroyer was shelled and sunk south of Java (-12.33333°N, 112°W) by JAPANESE DESTROYER Arashi, JAPANESE CRUISER Maya and JAPANESE DESTROYER Nowaki (all ) with the loss of 70 crew. About 50 survivors were taken as prisoners of war.
 * DUTCH TANKER Talang Akar (🇳🇱 Netherlands): World War II: The tanker was scuttled at Surabaja to prevent capture. Salvaged and put in Japanese service as Tango Maru.
 * SS Tolten (🇨🇱 Chile): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 30 nmi off New Jersey, United States, by GS U-404 with the loss of 27 of her 29 crew.
 * SS Tunni (🇳🇴 Norway): World War II: The cargo ship was scuttled at Surabaya, Netherlands East Indies.
 * HNLMS Witte de With : World War II: The was bombed and sunk at Surabaya, Dutch East Indies by Japanese aircraft.

3 March

 * USS Asheville (PG-21) : World War II: The gunboat was shelled and sunk south of Java, Netherlands East Indies by JAPANESE DESTROYER Arashi and JAPANESE DESTROYER Nowaki (both ). Of her 159 crew, one officer was taken as a prisoner of war, other survivors were machine gunned in the water.
 * SS Helenus (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (6.01667°N, -12.03333°W) by GS U-68 (1940) with the loss of six of her 82 crew. Survivors were rescued by SS Beaconsfield (🇬🇧 United Kingdom).
 * SS Mary (1920) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 165 nmi off the coast of Brazil (8.41667°N, -52.83333°W) by GS U-129 (1941) with the loss of one of her 34 crew. Survivors were rescued by SS Alcoa Scout (🇺🇸 United States).

4 March

 * HMS Anking : World War II: The depôt ship was shelled and sunk in the Indian Ocean 300 nmi south of Java, Netherlands East Indies by Imperial Japanese Navy warships with the loss of 40 of her 97 crew. Some survivors were rescued by HNLMS K XI and SS Tawali (🇳🇱 Netherlands), others reached Java and were taken as prisoners of war.
 * JAPANESE OILER Erimo : World War II: The Fleet Oiler was torpedoed  in Sunda Strait off Bali Island (-4.31667°N, 108.41667°W) by USS S-39 (SS-144) . She was beached on Bali and declared a constructive total loss. Wreck scrapped post-war. Survivors were rescued by JAPANESE CRUISER Yura . 4 crewmen were killed.
 * SS Francol (🇬🇧 United Kingdom: World War II: The tanker was shelled and sunk in the Indian Ocean 300 nmi south of Java by Imperial Japanese Navy warships with the loss of all but two crew.
 * SS Kaijo Maru No.2 (🇯🇵 Japan): World War II: The tanker was torpedoed and sunk in the Pacific Ocean about 145 nmi south of Truk, Micronesia by USS Grampus (SS-207).
 * MMS 51 : World War II: The was shelled and sunk in the Indian Ocean 300 nmi south of Java by Imperial Japanese Navy warships. Some survivors were rescued by SS Tjimanoek (🇳🇱 Netherlands), others reached Java and were taken as prisoners of war.
 * SS Morioka Maru (🇯🇵 Japan): World War II: The cargo ship struck a Japanese mine and sank west of Nakadori Island, Japan (32.91667°N, 129.43333°W).
 * HMAS Yarra (U77) : World War II: The was sunk in Indian Ocean 300 nmi south of Java by Imperial Japanese Navy warships with the loss of 147 of her 160 crew. The survivors were rescued by HNLMS K XI.

5 March

 * SS Auby (🇬🇧 United Kingdom): World War II: The cargo ship was scuttled at Batavia, Netherlands East Indies. She was later raised by the Japanese.
 * SS Benmohr (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 210 nmi south south west of Freetown, Sierral Leone (6.08333°N, -14.25°W) by GS U-505 . All 56 crew were rescued by a Short Sunderland aircraft of 95 Squadron, Royal Air Force.
 * SS Bussard (1921) (🇩🇪 Germany): The cargo ship was wrecked off Kristiansand, Norway.
 * SS Collamer (🇺🇸 United States): World War II: Convoy HX 178: The Design 1022 cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (44.31667°N, -63.15°W) by GS U-404 with the loss of seven of her 38 crew. Survivors were rescued by SS Empire Woodcock (🇬🇧 United Kingdom).
 * JAPANESE OILER Kaijo Maru No. 2 GO : World War II: The Oiler was torpedoed and sunk 130 miles south of  Truk (4.86667°N, 151.33333°W)by USS Grampus (SS-207)  . Her Commanding Officer and 89 crewmen and passengers were killed.
 * SS Mariana (1915) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Turks Island (22.23333°N, -71.38333°W) by GS U-126 (1940) with the loss of all 36 crew.
 * SS Marin Sanudo ( undefined: World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea 10.5 nmi south west of Lampedusa by HMS Upholder (P37).
 * MV O. A. Knudsen (1938) (🇳🇴 Norway): World War II: The tanker was torpedoed, shelled and sunk in the Atlantic Ocean (26.28333°N, -75.83333°W) by GS U-128 (1941) with the loss of two of her 40 crew.

6 March

 * HNLMS C : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * SS Hans Egede (🇩🇰 Greenland): World War II: The coaster was torpedoed and sunk in the Atlantic Ocean (46°N, -55.5°W) by GS U-587 with the loss of all 23 crew.
 * SS Hvoslef (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Fenwick Island, Delaware, United States (38.45°N, -74.9°W) by GS U-94 (1940) with the loss of six of her twenty crew.
 * SS Lahneck (1922) (🇩🇪 Germany): World War II: The cargo ship was lost in a collision off Oksøy, Norway.
 * DUTCH STEAMER Mandar (🇳🇱 Netherlands): World War II: The steamer was scuttled at Tjilatjap to prevent capture. Salvaged and put in Japanese service as Hiyoshi Maru.
 * HNLMS Pieter de Bitter (1937) : World War II: Dutch East Indies campaign: The was scuttled at Surabaya, Dutch East Indies, to avoid capture by advancing Japanese forces.
 * HMT Rononia (FY1594) (🇬🇧 United Kingdom): World War II: The trawler was torpedoed and sunk in the Atlantic Ocean south of Iceland by GS U-701 with the loss of all eleven crew.
 * MV Sydhav (1928) (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (4.78333°N, -14.95°W) by GS U-505 with the loss of twelve of her 36 crew. Survivors were rescued by HMT Kelt.
 * SS Taki Maru (1916) (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Narwhal (SS-167) (.
 * MV Tønsbergfjord (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi west of Bermuda (31.36667°N, -68.08333°W) by ITALIAN SUBMARINE Enrico Tazzoli . All 33 crew were rescued by SS Arthur W. Sewall (🇳🇴 Norway), SS Telamon (🇳🇱 Netherlands) and MV Velma (🇳🇴 Norway).

7 March

 * SS Arabutan (🇧🇷 Brazil): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 81 nmi off Cape Hatteras, North Carolina, United States (35.25°N, -73.91667°W) by GS U-155 (1941) with the loss of one of the 55 people on board. Survivors were rescued by USCGC Calypso (WPC-104).
 * SS Barbara (1913) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (20.16667°N, -73.08333°W) by GS U-126 (1940) with the loss of 26 of her 85 crew.
 * SS Cardonia (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (19.88333°N, -72.45°W) by GS U-126 (1940) with the loss of one of her 38 crew. Survivors were rescued by USS Mulberry (AN-27)  or reached land in their lifeboats.
 * HNLMS Golden Leeuw : World War II: Battle of Java: The was scuttled at Surabaya, Netherlands East Indies to avoid capture by Japanese forces.
 * SS Independence Hall (🇺🇸 United States): The cargo ship ran aground off Sable Island, Nova Scotia Canada. She broke in two and sank the next day. Survivors were rescued by HMCS Niagara (I57).
 * Nyggjaberg (🇫🇴 Faroe Islands): World War II: The trawler was torpedoed and sunk in the Atlantic Ocean south of Iceland by GS U-701 with the loss of all 21 crew.
 * SS Steel Age (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nmi north of Paramaribo, Surinam (6.75°N, -53.25°W) by GS U-129 (1941) with the loss of 33 of her 34 crew. The survivor was taken on board U-129 as a prisoner of war.
 * SS Uniwaleco (🇿🇦 South Africa): World War II: The whale factory ship was torpedoed and sunk in the Caribbean Sea 45 nmi west of the Saint Vincent Passage (13.38333°N, -62.06667°W) by GS U-161 (1941) with the loss of eighteen of her 51 crew.
 * SS Woolgar (🇳🇴 Norway): World War II: The cargo ship was bombed and sunk in the Pacific Ocean 150 nmi south west of Tjilatjap, Netherlands East Indies by Japanese aircraft.

8 March

 * SS Baluchistan (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean (4.21667°N, -8.53333°W) by GS U-68 (1940) with the loss of three of the 71 people on board.
 * HNLMS Eland Dubois (1937) : World War II: The was scuttled in the Madura Strait off Java, after suffering boiler failure during her escape from advancing Japanese forces in the Dutch East Indies.
 * SS Esso Bolivar (🇵🇦 Panama): World War II: The tanker was torpedoed, shelled and damaged in the Atlantic Ocean 30 nmi south east of Guantanamo Bay, Cuba (19.63333°N, -74.63333°W) by GS U-126 (1940) with the loss of eight of her 50 crew. The survivors abandoned her and were rescued by USS Endurance (AMc-77) . Esso Bolivar was towed to Guantanamo Bay. She was subsequently repaired and returned to service in August 1942.
 * SS Hengist (🇬🇧 United Kingdom): World War II: The coaster was torpedoed and sunk in the Atlantic Ocean north west of Cape Wrath (59.51667°N, -10.25°W) by GS U-569 with the loss of three of her 32 crew. Survivors were rescued by the trawler Groenland (🇫🇷 France).
 * HNLMS Jan van Amstel (1937) : World War II: The was sunk by a Japanese destroyer in the Madura Strait off Java.
 * HNLMS Krakatau (1924) : World War II: Battle of Java: The was scuttled off Madura, Netherlands East Indies to avoid capture by Japanese forces.
 * HMT Northern Princess : World War II: The naval trawler was torpedoed and sunk in the Atlantic Ocean off Newfoundland (45.36667°N, -55.98333°W) by GS U-587 with the loss of all 38 crew.
 * HMT Notts County (FY250) : World War II: The naval trawler was torpedoed and sunk in the Atlantic Ocean south of Iceland by GS U-701 with the loss of all 41 crew.

9 March

 * SS Cayrú (🇧🇷 Brazil): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nmi off New York by GS U-94 (1940) with the loss of 53 of her 89 crew. Survivors were rescued by USS AMc-202  and MV Titania (1937) (🇳🇴 Norway).
 * MV Hanseat (🇵🇦 Panama): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 10 nmi north west of Cape Maysi, Cuba by GS U-126 (1940) . All 39 crew survived.
 * SS Lily (Uchida, 1920) (🇬🇷 Greece): World War II: Convoy ON 68: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean 470 nmi east of Halifax, Nova Scotia, Canada (43.53333°N, -54.23333°W) by GS U-587 with the loss of three of her 32 crew. Survivors were rescued by HMCS Sackville (K181).
 * MV Tyr (1926) (🇳🇴 Norway): World War II: Convoy ON 68: The cargo ship was torpedoed and sunk in the Atlantic Ocean (43.2°N, -61.25°W) by GS U-96 (1940) with the loss of thirteen of her 31 crew. Survivors were rescued by two Canadian warships, one of which was HMCS Georgian (J144).

10 March

 * SS Gulftrade (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 3 nmi off the Barnegat Lighthouse, New Jersey (39.83333°N, -73.86667°W) with the loss of eighteen of her 34 crew. Survivors were rescued by USCGC Antietam (WPC-128) and USS Larch (AN-21).
 * JAPANESE ARMED MERCHANT CRUISER Kongo Maru : World War II: The Armed Merchant Cruiser was bombed and sank in Huon Bay off Lae, New Guinea in the Solomon Sea (-6.81667°N, 147.03333°W)  by U.S. Navy aircraft.
 * MS Kosei Maru (1933) (🇯🇵 Japan): World War II: The cargo ship struck a mine and sank in Cam Ranh Bay, Indochina.
 * SS Lady Nelson (🇨🇦 Canada): World War II: The passenger ship was torpedoed and sunk at Port Castries, Saint Lucia by GS U-161 (1941) with the loss of 25 of the 235 people on board. She was later salvaged, repaired and returned to service in April 1943 as a hospital ship.
 * JAPANESE AUXILIARY MINELAYER Tenyo Maru : World War II: The Auxiliary Minelayer was bombed, broke in two and sank in Huon Bay off Lae, New Guinea in the Solomon Sea (-6.81667°N, 147.03333°W)  by U.S. Navy aircraft.
 * SS Umtata (🇬🇧 United Kingdom): World War II: The cargo liner was torpedoed and sunk at Port Castries by GS U-161 (1941) with the loss of four of the 177 people on board. She was later salvaged, and temporarily repaired, but was torpedoed and sunk in July 1942 whilst under tow to the United States for permanent repairs.
 * JAPANESE TRANSPORT Yokohama Maru : World War II: The Transport was bombed and sank in Huon Bay off Lae, New Guinea in the Solomon Sea (-6.81667°N, 147.03333°W)  by U.S. Navy aircraft.

11 March

 * SS Caribsea (🇺🇸 United States): World War II: The Design 1099 cargo ship was torpedoed and sunk in the Atlantic Ocean 14 nmi off the Cape Lookout Lighthouse, North Carolina (34.6°N, -76.3°W) by GS U-158 (1941) with the loss of 21 of her 28 crew. Survivors were rescued by SS Norlindo (🇺🇸 United States).
 * SS Fukushu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Pollack (SS-180).
 * HMS Naiad (93) : World War II: The was torpedoed and sunk in the Mediterranean Sea by GS U-565  with the loss of 77 of her 480 crew. Survivors were rescued by HMS Jervis (F00), HMS Kipling (F91) and HMS Lively (G40) (all ).
 * HMT Stella Capella (FY107) : World War II: The naval trawler was torpedoed and sunk in the Atlantic Ocean off Iceland (64.8°N, -13.33333°W) by GS U-701 with the loss of all 33 crew.

12 March

 * SS Ingerto (🇳🇴 Norway): World War II: Convoy ON 70: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (41.5°N, -51°W) by GS U-578 with the loss of all 32 crew.
 * SS Olga (1919) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 20 nmi north of the Nuevitas Lighthouse, Cuba (21.53333°N, -76.4°W) by GS U-126 (1940)  with the loss of one of her 33 crew. Survivors were rescued by United States Navy vessels.
 * HMT St Briac : World War II: The air target vessel struck a mine and sank in the North Sea off Aberdeen with the loss of five of her nine crew.
 * USS Texan (ID-1354) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean 40 nmi east of Nuevitas, Cuba (21.56667°N, -76.46667°W) by GS U-126 (1940) with the loss of nine of her 47 crew. Survivors were rescued by the fishing vessel Yoyo (🇨🇺 Cuba).

13 March

 *  Albert F. Paul (🇺🇸 United States): World War II: The four-masted schooner was torpedoed and sunk in the Atlantic Ocean 160 nmi north east of Cape Hatteras, North Carolina (36°N, -72°W) by GS U-332 with the loss of all eight crew.
 * SS Chichibu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk south west of Mikurajima by USS Gar (SS-206).
 * SS Colabee (🇺🇸 United States): World War II: The cargo ship was torpedoed and damaged in the Atlantic Ocean 10 nmi off Cape Guajaba, Cuba (22.16667°N, -77.5°W) by GS U-126 (1940) with the loss of 23 of her 37 crew. The survivors abandoned ship and reached land in their lifeboats. Colabee ran aground. She was later refloated, repaired and returned to service in September 1942.
 * SS John D. Gill (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 25 nmi east of Cape Fear, North Carolina (33.91667°N, -77.65°W) by GS U-158 (1941) with the loss of 23 of her 46 crew. Survivors were rescued by USCGC CG-4405  and SS Robert H. Colley (🇺🇸 United States).
 * SS Mabella (🇳🇴 Norway): World War II: The cargo ship was torpedoed, shelled and sunk in the Indian Ocean off the Coromandel Coast, India (14°N, 81.78333°W) by JAPANESE SUBMARINE I-164 with the loss of at least nine of her crew. Survivors were rescued by SS Tanfield (🇬🇧 United Kingdom).
 * USS PT-32 (PT-32) : World War II: The ELCO 77' -class PT Boat was scuttled by USS Permit (SS-178)   off  Taguayan Island, The Philippines after becoming disabled.
 * SS Tolten (🇨🇱 Chile): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 32 nmi off Barnegat, New Jersey, United States with the loss of 26 of her 27 crew. The survivor was rescued by USS Larch (AN-21).
 * SS Trepca ( undefined): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (37°N, -73.41667°W) by GS U-332 with the loss of four of her 37 crew. Survivors were rescued by a Swedish merchant ship.

14 March

 * ITALIAN SUBMARINE Ammiraglio Enrico Millo : World War II: The submarine was torpedoed and sunk in the Mediterranean Sea off Calabria, Italy(38.45°N, 16.61667°W) by HMS Ultimatum (P34) with the loss 55 crew, there were 15 survivors 14 of whom  were rescued and captured by HMS Ultimatum.
 * SS Brabo (1899) (🇧🇪 Belgium): The cargo ship collided with SS Poznan (1926) (🇵🇱 Poland) and was beached off South Shields, Northumberland United Kingdom. She was declared a total loss.
 * MV British Resource (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 230 nmi north of Bermuda (36.06667°N, -65.63333°W) by GS U-124 (1940)  with the loss of 46 of her 51 crew. Survivors were rescued by HMS Clarkia (K88).
 * SS Kellerwald (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank in German waters.
 * SS Lemuel Burrows (🇺🇸 United States): World War II: The collier was torpedoed and sunk in the Atlantic Ocean off Atlantic City, New Jersey (39.35°N, -74.21667°W) by GS U-404 with the loss of twenty of her 34 crew. Survivors were rescued by SS James Elwood Jones and SS Sewell Point (both 🇺🇸 United States).
 * SS Penelope (1925) (🇵🇦 Panama): World War II: The tanker was torpedoed and sunk in the Caribbean Sea (15°N, -64.33333°W) by GS U-67 (1940).
 * SS Sarniadoc (🇨🇦 Canada): World War II: The cargo ship was torpedoed and sunk in the Caribbean Sea 200 nmi west of Guadeloupe by GS U-161 (1941) with the loss of all 21 crew.
 * SS Ste. Marcelle (🇫🇷 Vichy France): The cargo ship was torpedoed and sunk in the Mediterranean Sea by ITALIAN SUBMARINE Mocenigo.
 * GS U-133 (1941) : World War II: The Type VIIC submarine struck a mine and sank in the Saronic Gulf (37.83333°N, 23.58333°W) with the loss of all 45 crew.

15 March

 * USCGC Acacia (WAGL-200) : World War II: The lighthouse tender was shelled and sunk in the Caribbean Sea south of Haiti by GS U-161 (1941) . All 35 crew were rescued by a Consolidated PBY Catalina aircraft of the United States Navy.
 * SS Ario (🇺🇸 United States): World War II: The tanker was torpedoed, shelled and damaged in the Atlantic Ocean 11 nmi south of Cape Lookout, North Carolina (34.61667°N, -76.33333°W) by GS U-158 (1941) with the loss of eight of her 34 crew. Survivors were rescued by USS Du Pont (DD-152) . Ario sank 10 nmi east of Cape Lookout (34.23333°N, -76.45°W).
 * SS Nicole Schiaffino (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk off the coast of Norway.
 * SS Olean (🇺🇸 United States): World War II: The Design 1128 tanker was torpedoed and damaged in the Atlantic Ocean 15 nmi south of Cape Lookout (34.36667°N, -76.48333°W) by GS U-158 (1941) with the loss of six of her 42 crew. Survivors were rescued by lifeboats from Cape Lookout and Fort Macon. Olean was towed to the Hampton Roads and later dry docked. Although she was declared a constructive total loss, she was requisitioned by the War Shipping Administration, repaired and returned to service as Sweep.
 * GS U-503 : World War II: The Type IXC submarine was depth charged and sunk in the Atlantic Ocean south east of Newfoundland (45.83333°N, -48.83333°W) by a Lockheed Hudson aircraft of the United States Navy with the loss of all 51 crew.
 * HMS Vortigern (D37) : World War II: The V-class destroyer was torpedoed and sunk in the North Sea off Cromer, Norfolk by S-104 with the loss of 96 of her 110 crew.

16 March

 * MV Australia (1928) (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (35.11667°N, -75.36667°W) by GS U-332 with the loss of four of her 40 crew. Survivors were rescued by SS William J. Salman (🇺🇸 United States).
 * SS Baron Newlands (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (4.58333°N, -8.53333°W) by GS U-68 (1940) with the loss of eighteen of her 38 crew.
 * MV Oscilla (🇳🇱 Netherlands): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean by ITALIAN SUBMARINE Morosini . Four survivors were rescued by SS Leto (🇳🇱 Netherlands
 * SS Stangarth (🇬🇧 United Kingdom): World War II: The cargo ship, on her maiden voyage, was torpedoed and sunk in the Atlantic Ocean (22.66667°N, -65.33333°W) by GS U-504 with the loss of all 46 crew.
 * SS Utlandshörn (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank off Petsamo, Finland.

17 March

 * SS Achaia (1922) (🇩🇪 Germany: World War II: The cargo ship struck a mine and sank in the Mediterranean Sea.
 * HMS Adept (W107) : World War II: The Rescue Tug ran aground in the Hebrides Islands and was wrecked.
 * SS Allende : World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (4°N, -7.73333°W) by GS U-68 (1940) with the loss of six of her 39 crew.
 * SS Ceiba (🇭🇳 Honduras): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (35.71667°N, -73.81667°W) by GS U-124 (1940) with the loss of 44 of the 50 people on board. Survivors were rescued by USS Hambleton (DD-455).
 * MV Crista (🇬🇧 United Kingdom): World War II: Convoy AT 34: The tanker was torpedoed and damaged in the Mediterranean Sea (32.35°N, 25°W) by GS U-83 (1941) with the loss of seven of her 39 crew. The survivors abandoned ship and were rescued by HMSAS Boksburg . Crista was anchored off Bardia, Libya where the fire was extinguished. She was later repaired and returned to service in August 1943.
 * ITALIAN SUBMARINE Guglielmotti : World War II: The was torpedoed and sunk in the Mediterranean Sea off Calabria(37.7°N, 15.96667°W)  by HMS Unbeaten (N93)  with the loss of 46 of her 58 crew.
 * SS Île de Batz (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (4.06667°N, -8.06667°W) by GS U-68 (1940) with the loss of 4 of her 43 crew. Survivors were rescued by HMCS Weyburn (K173).
 * SS Ishikari Maru (🇯🇵 Japan): World War II: The collier was torpoedoed and sunk west of Port Lloyd, Chichijima, Bonin Islands by USS Grayback (SS-208).
 * SS Mount Lycabettus (🇬🇷 Greece): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (40.25°N, -61°W) by GS U-373 with the loss of all 30 crew.
 * MV Ranja (1928) (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (38°N, -65.33333°W) by GS U-71 (1940) with the loss of all 30 crew.
 * MV San Demetrio (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean north west of Cape Charles, Virginia by GS U-404 with the loss of nineteen of her 53 crew. Survivors were rescued by SS Beta (🇺🇸 United States).
 * MV Scottish Prince (1938) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (4.16667°N, -8°W) by GS U-68 (1940) with the loss of one of her 39 crew. Survivors were rescued by HMCS Weyburn (K173).

18 March

 * SS E. M. Clark (🇺🇸 United States): World War II:The tanker was torpedoed and sunk in the Atlantic Ocean 22 nmi south west of Cape Hatteras, North Carolina (34.83333°N, -75.58333°W) by GS U-124 (1940) with the loss of one of her 41 crew. Survivors were rescued by USS Dickerson (DD-157)  and SS Catatumbo (🇻🇪 Venezuela).
 * SS Kassandra Louloudis (🇬🇷 Greece): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Cape Hatteras (35.08333°N, -75.41667°W) by GS U-124 (1940) . All 35 crew were rescued by USCGC Dione (WPC-108).
 * ITALIAN SUBMARINE Tricheco : World War II: The was torpedoed and sunk in the Mediterranean Sea off Brindisi (40.75°N, 17.93333°W)  by HMS Upholder (P37) . 38 killed, 3 survivors including the C.O.

19 March
One more ship may have been lost on this day, see below.
 * SS Liberator (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (35.08333°N, -75.5°W) by GS U-332 with the loss of five of her 35 crew. Survivors were rescued by USS Umpqua (AT-25).
 * SS Papoose (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 15 nmi south east of Cape Lookout, North Carolina (34.28333°N, -76.65°W) by GS U-124 (1940) with the loss of two of her 34 crew. Survivors were rescued by USS Stringham (DD-83).
 * SS W. E. Hutton (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 20 nmi south east of Cape Lookout (34.41667°N, -76.83333°W) by GS U-124 (1940) with the loss thirteen of her 23 crew. Survivors were rescued by MV Port Halifax (🇬🇧 United Kingdom).

20 March

 * HMS Heythrop (L85) : World War II: The was torpedoed and sunk in the Mediterranean Sea off Libya by GS U-652  with the loss of sixteen crew.
 * SS Oakmar (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (36.36667°N, -68.83333°W) by GS U-71 (1940) with the loss of six of her 36 crew. Survivors were rescued by SS Stavros (🇬🇷 Greece).
 * SS Risøy (1918) (🇳🇴 Norway): World War II: Convoy PW 128: The cargo ship was bombed and sunk off Trevose Head, Cornwall, United Kingdom by Luftwaffe aircraft with the loss of one of her eighteen crew. Survivors were rescued by HMT Ruby (T24).

21 March

 * SS Esso Nashville (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean (33.58333°N, -77.36667°W) by GS U-124 (1940) . All 37 crew were rescued by USS McKean (APD-5), USCGC Agassiz (WPC-126) and USCGC Tallapoosa (WPG-52) (both ). Esso Nashville later broke in two, with the bow section sinking. The stern section was taken in tow by USS Umpqua (ATO-25) (. It was later repaired with a new bow and the ship returned to service in March 1943.
 * MML 129 and MML 132 (both ): World War II: The s were bombed and sunk in the Mediterranean Sea off the coast of Algeria by enemy aircraft with the loss of seven crew between the two ships.

22 March

 * SS Muskogee (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 450 nmi south east of Bermuda (approximately 37°N, -62°W) by GS U-123 (1940) with the loss of all 34 crew.
 * MV Nueva Andalucia (1939) (🇳🇴 Norway): The tanker ran aground at Halifax, Nova Scotia, Canada. She broke in two the next day, with the bow section catching fire. All 39 crew were rescued. Stern section refloated on 21 April. Later towed to New York for repairs, returned to service with a new bow section in 1947.
 * MV Thursobank (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (38.08333°N, -68.5°W) by GS U-373 with the loss of 30 of her 26 crew. Survivors were rescued by MV Havsten (🇳🇴 Norway).

23 March
For the loss of the British tanker Diala on this day, see the entry for 15 January 1942.
 * MV British Prudence (🇬🇧 United Kingdom): World War II: Convoy HX 181: The tanker was torpedoed and sunk in the Atlantic Ocean (45.46667°N, -56.21667°W) by U-754 with the loss of three of her 50 crew. Survivors were rescued by HMS Witherington (D76).
 * Clan Campbell ( undefined): The 7,255 grt Clan Line cargo ship was bombed by Italian naval aircraft and sunk near Malta with the loss of 7 lives.
 * ITALIAN DESTROYER Lanciere : The  foundered in a severe storm with a loss of 201 crewmen.
 * SS Naeco (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (33.98333°N, -76.66667°W) by GS U-124 (1940) with the loss of 24 of her 38 crew. Survivors were rescued by USCGC Dione (WPC-107), USS Osprey (AM-56) and USS Umpqua (ATO-25) (both ).
 * SS Pagastikos (🇬🇷 Greece): World War II: The cargo ship was sunk in the South Atlantic by GERMAN AUXILIARY CRUISER Thor.
 * ITALIAN DESTROYER Scirocco : The  foundered in a severe storm with a loss of 189 crewmen.
 * MV Svenør (1931) (🇳🇴 Norway): World War II: The tanker was torpedoed, shelled and sunk in the Atlantic Ocean 300 nmi east of Cape Hatteras, North Carolina, United States by GS U-105 (1940) with the loss of eight of her 37 crew. Survivors were rescued by SS Cuena (🇵🇹 Portugal).

24 March

 * SS Empire Steel (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed, shelled and sunk in the Caribbean Sea (37.75°N, -74.83333°W) by GS U-123 (1940) with the loss of 39 of her 47 crew. Survivors were rescued by ST Edmund J. Moran (🇺🇸 United States).
 * HMS Southwold (L10) : World War II: The struck a mine and sank in the Mediterranean Sea off Valletta, Malta 35.88333°N, 14.58333°W)  with the loss of five of her 164 crew.
 * GS U-655 : World War II: The Type VIIC submarine was rammed and sunk in the Barents Sea (approximately 73°N, 21°W) by HMS Sharpshooter (J68) with the loss of all 45 crew.

25 March

 * MV Narrangansett (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (34.76667°N, -67.66667°W) by GS U-105 (1940) with the loss of all 49 crew.
 * MV Ocana (🇳🇱 Netherlands): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean (42.6°N, -65.5°W) by GS U-552 with the loss of 53 of her 57 crew. Survivors were rescued by USS Mayo (DD-422) . Ocana was scuttled on 15 April at 43.4°N, -64.75°W by HMCS Burlington (J250).
 * SOVIET MINESWEEPER Sulla : World War II: The auxiliary minesweeper was sunk off Bear Island, Norway by Kriegsmarine warships.

26 March

 * SS Dixie Arrow (🇺🇸 USA): World War II: Operation Drumbeat: The tanker was torpedoed and sunk in the Atlantic Ocean off Cape Hatteras, North Carolina (34.91667°N, -75.03333°W) by U-71 with the loss of eleven of her 33 crew. Survivors were rescued by USS Tarbell (DD-142).
 * HMS Jaguar (F34) : The J-class destroyer was torpedoed and sunk in the Mediterranean Sea off Sidi Barrani, Egypt (31.88333°N, 26.3°W) by GS U-652  with the loss of 3 officers and 190 crewmen. Survivors, 8 officers and 45 crewmen, were rescued by Naval Whaler HMS Klo.
 * HMS Legion (G74) : The L-class destroyer was bombed and sunk in the Grand Harbor, Valletta, Malta. She was eventually refloated and resunk in deep water.
 * HMS P39 : The was bombed and sunk in the Grand Harbor, Valletta, Malta. She was raised and beached unrepaired in 1943 and her wreck was bombed again.
 * RFA Slavol : World War II: The tanker was torpedoed and sunk in the Mediterranean Sea off Sidi Barrani (32.01667°N, 25.91667°W) by GS U-205 with the loss of 36 of her 56 crew. Survivors were rescued by GREEK DESTROYER Vasilissa Olga.
 * MV Talabot (1935) (🇳🇴 Norway): World War II: The cargo ship was bombed and sunk at Valletta, Malta by Luftwaffe aircraft. She was scrapped in 1946, with final removal of the bottom of her hull in July 1985.

27 March

 * USS Atik (AK-101) : World War II: The Q-ship was torpedoed and sunk in the Atlantic Ocean off Norfolk, Virginia (35.63333°N, -70.23333°W) by GS U-123 (1940) with the loss of all 141 crew.
 * SS Equipoise (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 60 nmi south east of Cape Henry, Virginia, United States (36.6°N, -74.75°W) by GS U-160 (1941) with the loss of 41 of her 54 crew. Survivors were rescued by USS Greer (DD-145).
 * SS Kitano Maru (🇯🇵 Japan): World War II: The cargo ship struck a mine and sank in Lingayen Gulf, Luzon, the Philippines (16.18333°N, 120.31667°W).
 * SS Nissho Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea south east of Kumun Island (33.83333°N, 127.55°W) by USS Gudgeon (SS-211).
 * RFA Svenør : World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 300 nmi east of Cape Hatteras, North Carolina, United States by GS U-105 (1940) with the loss of eight of her 37 crew. Survivors were rescued by SS Cunene (🇵🇹 Portugal).
 * GS U-587 : World War II: The Type VII submarine was depth charged and sunk in the Atlantic Ocean (47.35°N, -21.65°W) by HMS Aldenham (L22), HMS Grove (L77), HMS Leamington (G19) and HMS Volunteer (D71) (all ) with the loss of all 42 crew.

28 March

 * HMS Campbelltown (I42) : World War II: St Nazaire Raid: The was expended as a floating bomb at Saint-Nazaire, Loire-Atlantique, France. She rammed the Normandie Dock drydock gates and later exploded killing around 250 people. The drydock was put out of action and not repaired until 1947.
 * SS Empire Ranger (🇬🇧 United Kingdom): World War II: Convoy PQ 13: The cargo ship was bombed and sunk in the Barents Sea (72.16667°N, 30°W) by Junkers Ju 88 aircraft of the Luftwaffe.
 * HMS MGB 314 (MGB314) : World War II: St Nazaire Raid: The Fairmile C motor gun boat was scuttled off Saint-Nazaire, Loire-Atlantique, France, due to battle damage and bad weather
 * HMS ML 156 (ML156) : World War II: St Nazaire Raid: The Fairmile B motor launch was scuttled off Saint-Nazaire, Loire-Atlantique, France, due to battle damage and bad weather
 * HMS ML 177 (ML177) :  World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 192 (ML192) : World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 262 (ML262) : World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 267 (ML267) :  World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 268 (ML268) :  World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 270 (ML270) :  World War II: St Nazaire Raid: The Fairmile B motor launch was scuttled off Saint-Nazaire, Loire-Atlantique, France, due to battle damage and bad weather
 * HMS ML 298 (ML298) :  World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 446 (ML446) : World War II: St Nazaire Raid: The Fairmile B motor launch was scuttled off Saint-Nazaire, Loire-Atlantique, France, due to battle damage and bad weather
 * HMS ML 447 (ML447) : World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS ML 457 (ML457) : World War II: St Nazaire Raid: The Fairmile B motor launch was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.
 * HMS MTB 74 (MTB74) : World War II: St Nazaire Raid: The was sunk at Saint-Nazaire, Loire-Atlantique, France, by German shore batteries.

29 March

 * SS Bateau (🇵🇦 Panama): World War II: Convoy PQ 13: The cargo was sunk in the Barents Sea (72.5°N, 27°W) by GERMAN DESTROYER Z26.
 * MV City of New York (1930) (🇺🇸 United States): World War II: The cargo liner was torpedoed and sunk in the Atlantic Ocean 40 nmi east of Cape Hatteras, North Carolina (35.26667°N, -74.41667°W) by GS U-160 (1941) with the loss of 24 of the 133 people on board. Survivors were rescued by USS Acushnet (AT-63), USS Roper (DD-147) (both ) and USCGC CG-455.
 * SS Galilea (1916) ( undefined) World War II: The troop ship was torpedoed and sunk in the Mediterranean Sea by HMS Proteus (N29) (. 768 people lost their lives in the sinking.
 * Hertford (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi south of Halifax, Nova Scotia, Canada (40.83333°N, -63.51667°W) by GS U-571 with the loss of four of her 62 crew. Survivors were rescued by SS Glenstrae and SS Fort Townsend (both 🇬🇧 United Kingdom).
 * GERMAN DESTROYER Z26 : World War II: Convoy PQ 13: The  was shelled and sunk by HMS Trinidad (46) and  HMS Eclipse (H08)  (both )  in the Barents Sea. 240 crewmen killed. 96 survivors rescued by GERMAN DESTROYER Z24 and GERMAN DESTROYER Z25.

30 March

 * SS Choyo Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Makassar Strait by USS Sturgeon (SS-187).
 * SS Effingham (🇺🇸 United States): World War II: Convoy PQ 13: The cargo ship straggled behind the convoy. She was torpedoed and damaged in the Barents Sea by GS U-456 with the loss of twelve of her 43 crew. She was later torpedoed and sunk at 70.46667°N, 35.73333°W by GS U-435 . Survivors were rescued by HMS Harrier (J71)  and a Soviet Navy patrol vessel.
 * SS Induna (🇬🇧 United Kingdom): World War II: Convoy PQ 13: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Barents Sea (70.91667°N, 37.3°W) by GS U-376 with the loss of 38 of her 66 crew. Survivors were rescued by a Soviet Navy minesweeper.
 * SS Muncaster Castle (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (2.03333°N, -12.03333°W) by GS U-68 (1940) with the loss of 24 of the 329 people on board. Survivors were rescued by SS Ann Stathos (🇬🇷 Greece) and HMS Aubretia (K96).
 * GS U-585 : World War II: The Type VIIC submarine struck a mine and sank in the Barents Sea (70°N, 34°W) with the loss of all 44 crew.

31 March

 * Allegheny (🇺🇸 United States): World War II: The barge was shelled and sunk in the Atlantic Ocean 9.5 nmi east south east of the Metopkin Inlet, Virginia (37.56667°N, -75.41667°W) by GS U-754 . All three crew were rescued by USCGC CG-4345.
 * Barnegat (🇺🇸 United States): World War II: The barge was shelled and sunk in the Atlantic Ocean 9.5 nmi east south east of the Metopkin Inlet (37.56667°N, -75.41667°W) by GS U-754 . All three crew were rescued by USCGC CG-4345.
 * SS Bosforo (1929) ( undefined): World War II: The cargo ship was torpedoed and sunk west of Sapienza (36.63333°N, 21.3°W) by HMS Proteus (N29).
 * ST Menominee (🇺🇸 United States): World War II: The tug was shelled and sunk in the Atlantic Ocean 9.5 nmi east south east of the Metopkin Inlet (37.56667°N, -75.41667°W) by GS U-754 with the loss of sixteen of her eighteen crew. Survivors were rescued by MV Northern Sun (1931) (🇺🇸 United States).
 * Ontario (🇺🇸 United States): World War II: The barge was shelled and damaged in the Atlantic Ocean 9.5 nmi east south east of the Metopkin Inlet (37.56667°N, -75.41667°W) by GS U-754 . Her three crew abandoned the vessel and were rescued by USCGC CG-4345.
 * SS San Gerardo (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (approximately 36°N, -67°W) by GS U-70 (1940) with the loss of 51 of her 57 crew. Survivors were rescued by MV Regent Panther (🇬🇧 United Kingdom).

Unknown date

 * HMIS Sophie Marie : World War II: The naval trawler either struck a mine and sank in the MacPherson Strait off the Nicobar Islands on 1 March; or struck a mine and sank off the Andaman Islands on 19 March with the loss of two crew.