List of shipwrecks in April 1942

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

1 April

 * MV Buccaneer (1927) (🇳🇴 Norway: World War II: The cargo ship was sunk in the Skaggerak by Kriegsmarine ships whilst attempting to escape from Sweden.
 * David H. Atwater (🇺🇸 United States): World War II: The coaster was torpedoed and sunk in the Atlantic Ocean between Cape Charles, Virginia and Cape Henlopen, Delaware by U-552.
 * SS Loch Don (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 500 nmi north north east of Bermuda by GS U-202 with the loss of three of her 47 crew. Survivors were rescued by  Helen Forsey (🇬🇧 United Kingdom).
 * SS Michael (1903) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk by SOVIET SUBMARINE Shch-404 off Vardø, Norway.
 * HMS P32  : World War II: The U-class submarine was bombed and sunk at Malta by Regia Aeronautica aircraft.
 * HMS Pandora (N42) : World War II: The Parthian-class submarine was bombed and sunk at Malta by Regia Aeronautica aircraft with the loss of 27 crew.
 * SS Rio Blanco (1922) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 40 nmi east of Cape Hatteras, North Carolina, United States (35.26667°N, -74.3°W) by GS U-160 (1941) with the loss of nineteen of her 40 crew. Survivors were rescued by HMT Hertfordshire (FY176)  and HMCS Niagara (I57).
 * SS Shunsei Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Strait of Malacca off Pulau Perak, Malaya by HMS Truant (N68) . 2 crewmen killed.
 * HMT Solomon : World War II: The naval trawler struck a mine and sank in the North Sea off Cromer, Norfolk.
 * Skytteren (🇳🇴 Norway): World War II: The whaling factory ship was scuttled off Måseskär, Sweden to avoid capture.
 * SS Tiger (1917) (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean off Cape Henry, Virginia (36.83333°N, -75.81667°W) by GS U-754 with the loss of one of her 42 crew. Survivors abandoned ship and were rescued by USS YP-52 . Tiger was taken in tow by USCGC Jackson (WPC-142)  and ST Releif (🇺🇸 United States) but foundered the next day in Chesapeake Bay and was declared a total loss. The wreck was scrapped in 1954.
 * GERMAN NAVAL TRAWLER UJ-1203 : World War II: The Naval Trawler struck a mine and sunk off Pien, Tytursaari in the Gulf of Finland.
 * SS Willesden (🇬🇧 United Kingdom): World War II: The cargo ship was sunk in the South Atlantic by GERMAN AUXILIARY CRUISER Thor.
 * SS Yae Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Strait of Malacca off Pulau Perak, Malaya by HMS Truant (N68) . 2 gunners and 4 crewmen were killed.

2 April

 * MV Valerian Kuibishev ( Soviet Union): World War II: The tanker was torpedoed and sunk in the Black Sea (44.95°N, 36.96667°W) by Luftwaffe aircraft.

3 April

 * SS Aust (🇳🇴 Norway): World War II: The cargo ship was sunk in the South Atlantic by GERMAN AUXILIARY CRUISER Thor.
 * SS David H. Atwater: World War II: The cargo ship was shelled and sunk in the Atlantic Ocean 10 nmi off the Chincoteague Inlet, Virginia by GS U-552 with the loss of 24 of her 27 crew. Survivors were rescued by USCGC CG-218.
 * SS Otho (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi east of Cape Henry, Virginia (36.41667°N, -72.36667°W) by GS U-754 with the loss of 32 of her 53 crew. Survivors were rescued by MV Gallia (🇳🇴 Norway) and USS Zircon (PY-16).
 * SOVIET DESTROYER Shaumian : World War II: The Novik-class destroyer was wrecked off Rybachka-Gelendshik in the Black Sea. Scrapped.
 * SS West Irmo (🇺🇸 United States): World War II: The cargo ship was torpedoed and damaged in the Atlantic Ocean 300 nmi west of Takoradi, Gold Coast (2.16667°N, -5.58333°W) by GS U-505 with the loss of ten of the 109 people on board. Survivors abandoned ship and were rescued by HMS Copinsay (T147), which took West Irmo in tow but she later sank at 2.28333°N, -5.41667°W.

4 April

 * SS Alphacca (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (1.83333°N, -7.66667°W) by GS U-505 with the loss of fifteen of her 72 crew.
 * SS Comol Rico (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 225 nmi north of San Juan, Puerto Rico (20.76667°N, -66.76667°W) by GS U-154 (1941) with the loss of three of her 42 crew. Survivors were rescued by USS Sturtevant (DD-240).
 * MV Dagfred (1930) (🇳🇴 Norway): World War II: The cargo ship was shelled and sunk in the Indian Ocean (16.25°N, 82.15°W) by two Imperial Japanese Navy cruisers. All 40 crew were allowed to take to the lifeboats before Dagfred was sunk.
 * SS Empire Arnold (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off French Guiana by U-155 with the loss of nine of her 59 crew.
 * GREEK SUBMARINE Glavkos : World War II: The Proteus-class submarine was bombed and sunk at Malta.
 * SS Turbo (🇬🇧 United Kingdom): World War II: The tanker, which had been bombed and damaged on 20 August 1941, was under tow of SS Gladys Moller (🇬🇧 United Kingdom) in the Red Sea when she broke in two and sank at 25.26667°N, 35.41667°W.

5 April

 * HMS Abingdon (J23) : World War II: The Hunt-class minesweeper was bombed by Italian aircraft at Malta. She was beached and abandoned after being declared a total loss. Scrapped in place in the 1950s.
 * SS Byron D. Benson (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 7.5 nmi off the Currituck Inlet, North Carolina (36.13333°N, -72.53333°W) by GS U-552 with the loss of ten of her 37 crew. Survivors were rescued by USCGC Dione (WPC-108)  and USS Hamilton (DMS-18) . Byron D. Benson sank on 8 April.
 * SS Catahoula (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (19.26667°N, -68.2°W) by GS U-154 (1941) with the loss of seven of her 45 crew. Survivors were rescued by USS Sturtevant (DD-240).
 * HMS Cornwall (56) : World War II: Easter Sunday Raid: The County-class cruiser was bombed and sunk in the Indian Ocean 200 nmi south west of Ceylon by Japanese aircraft with the loss of 198 of her 700 crew.
 * HMS Dorsetshire (40) : World War II: Easter Sunday Raid: The County-class cruiser was bombed and sunk in the Indian Ocean 200 nmi south west of Ceylon by Japanese aircraft with the loss of 234 of her 653 crew.
 * MV Empire Beacon (🇬🇧 United Kingdom): World War II: The coaster struck a mine and sank in the Bristol Channel off St. Anns Head, Pembrokeshire
 * SS Feddy (🇬🇧 United Kingdom): The cargo ship was lost in a collision with the trawler Visenda off North Ronaldsay.
 * HMS Gallant (H59) : World War II: The G-class destroyer was bombed and damaged beyond economical repair while being repaired after having previously lost her bow to a mine and being beached at Malta on 10 January 1941. The wreck was refloated and sunk as a blockship in September, 1943.
 * HMS Hector (F45) : World War II: Easter Sunday Raid: The armed merchant cruiser was bombed and sunk at Colombo, Ceylon by Japanese aircraft.
 * SS Ninetto G. ( undefined): World War II: The cargo ship was torpedoed and sunk by HMS Una (N87), east of Syracuse, Italy (37.08333°N, 15.68333°W).
 * SS Soli (🇳🇴 Norway): World War II: The tanker was bombed and damaged at Columbo, Ceylon by Imperial Japanese Navy aircraft. She was declared a total loss and beached. She was refloated on 4 January 1952 and subsequently scrapped at Karachi, Pakistan.
 * HMS Tenedos (H04) : World War II: The S-class destroyer was bombed and sunk at Colombo by Japanese aircraft with the loss of 33 crew.

6 April

 * MV Elsa (1928) (🇳🇴 Norway): World War II: The tanker was shelled and sunk in the Bay of Bengal 35 nmi east of Cuttack, Orissa, India by two Imperial Japanese Navy cruisers with the loss of one of her 30 crew.
 * HMS Havock (H43) : The H-class destroyer ran aground off Kelibia, Tunisia with the loss of one crew member.
 * SS Hermod (1925) (🇳🇴 Norway): World War II: The cargo ship was shelled and sunk in the Indian Ocean by two Imperial Japanese Navy cruisers. All 36 crew survived.
 *  : World War II: The Grimsby-class sloop was sunk in a Japanese air raid on Akyab, Burma.
 * MV Koll (1930) (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (34.65°N, -68.41667°W) by GS U-571 with the loss of three of her 34 crew. Survivors were rescued by SS Cunene, SS Lobito (both 🇵🇹 Portugal) and SS St. Cergue (🇨🇭 Switzerland).
 * MV Kollskegg (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (approximately 35.5°N, -73°W) by GS U-754 with the loss of four of her 42 crew. Survivors were rescued by SS Bushranger (🇵🇦 Panama) and HMCS Niagara (I57).
 * HMS West Cocker  : World War II: The West-class tug was bombed and sunk at Malta.

7 April

 * MV British Splendour (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean off Cape Hatteras, North Carolina, United States (35.11667°N, -75.31667°W) by GS U-552 with the loss of twelve of her 53 crew. Survivors were rescued by HMT St. Zeno (FY280).
 * HMS Emily  : World War II: The Tug was bombed and sunk at Malta.
 * HMS Hellespont (W86) : World War II: The Robust-class tug was bombed and sunk at Malta.
 * SS Lancing (1897) (🇳🇴 Norway): World War II: The factory ship was torpedoed and sunk in the Atlantic Ocean off Cape Hatteras (35.13333°N, -75.36667°W) by GS U-552 with the loss of one of her 50 crew. The survivors were rescued by SS Pan Rhode Island (🇺🇸 United States).
 * SS Murrayfield (🇬🇧 United Kingdom): The cargo ship ran aground off Mousa, Shetland Islands. She floated off on 8 April and sank.
 *  : World War II: The hospital ship was torpedoed and damaged in the Mediterranean Sea (32.21667°N, 26.56667°W) by GS U-453 with the loss of seven of the 187 people on board. Survivors abandoned ship and were rescued by a Royal Hellenic Navy destroyer. The crew later reboarded the ship and she was escorted into Alexandria, Egypt by tugs. Later repaired and returned to service.

8 April

 * SS Esso Baton Rouge (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 15 nmi north east of St. Simons, Georgia (31.03333°N, -80.88333°W) by GS U-123 (1940) with the loss of two of her 38 crew. She was later refloated, repaired and returned to service in November 1942.
 * SS Kurzesee (🇩🇪 Germany): World War II: The cargo ship was sunk by a submarine or a mine at 70.1°N, 21°W off Skjervøy, Norway.
 * HMS Moor : World War II: The Mooring Vessel struck a mine and sank in the Mediterranean Sea off Malta.
 * SS Nemanja ( undefined): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (40.5°N, -64.83333°W) by GS U-84 (1941) with the loss of thirteen of her 47 crew.
 * SS Oklahoma (1940) (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 10 nmi off St. Simons, Georgia by GS U-123 (1940) with the loss of nineteen of her 37 crew. She was later refloated, repaired and returned to service in December 1942.
 * HMT Svana : World War II: The whaler was bombed and sunk off Alexandria, Egypt by Regia Aeronautica aircraft.
 * HMT Thorgrim : World War II: The whaler was bombed and sunk off Alexandria, Egypt by Regia Aeronautica aircraft. She was refloated in August 1950, reportedly taken over by the Egyptian Government.

9 April

 * SS Atlas (1916) (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean off Cape Lookout, North Carolina (34.45°N, -76.26667°W) by GS U-552 with the loss of two of her 34 crew. Survivors were rescued by a United States Coast Guard cutter.
 * SS Benwood (🇳🇴 Norway): The cargo ship collided with SS Robert C. Tuttle (🇺🇸 United States) in the Atlantic Ocean north east of Molasses Reef, Florida. She grounded on Alligator Reef, but slid off and sank on 14 April.
 * SS Esparta (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (30.76667°N, -81.18333°W) by GS U-123 (1940) with the loss of one of her 40 crew. Survivors were rescued by USS Tyrer (WIX-339).
 * SS Fanefjeld (🇳🇴 Norway): World War II: Convoy UR 17: The cargo ship was torpedoed and sunk in the Atlantic Ocean south of Iceland by GS U-252 with the loss of all 24 people on board.
 * HMS Hermes (95) : World War II: The aircraft carrier was sunk in the Indian Ocean east of Ceylon by Japanese aircraft with the loss of 307 crew.
 * HMS Hollyhock (K64) : World War II: The Flower-class corvette was bombed and sunk in the Indian Ocean east of Ceylon by Japanese aircraft.
 * HMS Lance (G87) : World War II: The L-class destroyer was bombed and sunk at Malta. She was declared a constructive total loss. refloated and towed to the U.K. for scrapping 1944.
 * SS Malchace (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 25 nmi off Cape Lookout, North Carolina (34.46667°N, -75.93333°W) by GS U-160 (1941) with the loss of one of her 29 crew. Survivors were rescued by SS Faja de Oro (🇧🇷 Brazil).
 * USS Napa (AT-32) : World War II: The Bagaduce-class fleet tug) was scuttled off Corregidor Island, Philippines.
 * SS Norviken (1925) (🇳🇴 Norway): World War II: The cargo ship was bombed and near missed in the Indian Ocean by aircraft from JAPANESE AIRCRAFT CARRIER Akagi with the loss of four of her 46 crew. She was abandoned and came ashore the next day at Timkovie, Ceylon, later catching fire and breaking in two.
 * 'PT-34' : World War II: The ELCO 77'-class PT boat was strafed, bombed and sunk off Cauit Island, Philippines by Japanese Navy float planes.
 * HMAS Vampire (D68) : World War II: The V-class destroyer was sunk in the Indian Ocean east of Ceylon by Japanese aircraft with the loss of nine crew.
 * SOVIET SUBMARINE ShCh-421 : World War II: The Scuka-class submarine was damaged by a mine, scuttled by SOVIET SUBMARINE K-22 the next day. No casualties.

10 April

 * MV Balkis (1938) (🇳🇴 Norway): World War II: Convoy CL 14: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean 60 nmi north of Fortaleza, Brazil (-2.5°N, -38°W) by ITALIAN SUBMARINE Pietro Calvi with the loss of seven of her 31 crew. Survivors were rescued by MV Scania (1934) (🇸🇪 Sweden).
 * USS Canopus (AS-9) : World War II: The submarine tender was scuttled in Mariveles Bay, Bataan, Philippines.
 * SS Empire Prairie (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Philadelphia, Pennsylvania, United States (approximately 35°N, -60°W) by GS U-654 with the loss of all 49 crew.
 * USS Finch (AM-9) : World War II: The Lapwing-class minesweeper was bombed and damaged in Manila Bay off Corregidor Island, Philippines by Japanese aircraft. All 78 crew abandoned the ship, which sank the next day. She was subsequently salvaged by the Japanese and entered Imperial Japanese Navy service as W103
 * SS Sado Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Yokohama, Honshū by USS Thresher (SS-200).
 * SS Kirkpool (🇬🇧 United Kingdom): World War II: The cargo ship was sunk in the South Atlantic by GERMAN AUXILIARY CRUISER Thor.
 * MV San Delfino (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean east of Cape Hatteras, North Carolina, United States (35.58333°N, -75.1°W) by GS U-203 with the loss of 28 of her 50 crew. Survivors were rescued by HMT Norwich City (FY229).
 * SS Tamaulipas (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 10 nmi off Cape Lookout, North Carolina (34.41667°N, -76°W) by GS U-552 with the loss of two of her 37 crew. Survivors were rescued by HMT Norwich City (FY229).
 * USS Uranus (AF-14) : The Uranus-class stores ship ran aground at Akureyri, Iceland. Refloated on 13 April with assistance from USS Keywaydin (AT-24) and USS Symbol (AM-123) (both ) and returned to service.

11 April

 * SS Empire Cowper (🇬🇧 United Kingdom): World War II: Convoy QP 10: The cargo ship was bombed and sunk in the Barents Sea by a Luftwaffe Junkers Ju 88 aircraft with the loss of nine crew.
 * MV Grenanger (🇳🇴 Norway): World War II: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean (22.96667°N, -57.23333°W) by GS U-130 (1941) . The 36 crew were rescued by SS Almenara (🇬🇧 United Kingdom) and USS Courier (AMc-72).
 * SS Gulfamerica (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 5 nmi off Jacksonville, Florida by GS U-123 (1940) with the loss of nineteen of her 48 crew. Survivors were rescued by United States Coast Guard patrol boats. The hulk sank on 16 April.
 * SS Harry F. Sinclair, Jr. (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 7 nmi off Cape Lookout, North Carolina (34.41667°N, -76.5°W) by GS U-203 with the loss of ten of her 36 crew. Survivors abandoned ship and were rescued by HMT Hertfordshire (FY176) . The burnt-out ship was later towed to Morehead City, North Carolina. She was subsequently repaired and returned to service as Annibal in 1943.
 * MV Hebe (🇳🇱 Netherlands): World War II: The frieghter was sunk in a collision with HMT St. Cathan (FY234) in the Atlantic Ocean off the coast of South Carolina.
 * HMS Kingston (F64) : World War II: The K-class destroyer was bombed and sunk at Malta by Luftwaffe aircraft.
 * HMT St. Cathan (FY234) : World War II: The naval trawler collided with Dutch merchant ship Hebe and sank in the Atlantic Ocean off the coast of South Carolina with the loss of  30 crew, 9 survivors.
 * SS Trongate (🇬🇧 United Kingdom): World War II: Convoy SC 79: The cargo ship caught fire at Halifax, Nova Scotia, Canada. She was scuttled by Allied warships.
 * SS Ulysses (1913) (🇬🇧 United Kingdom): World War II: The passenger ship was torpedoed and sunk in the Atlantic Ocean 45 nmi south of Cape Hatteras, North Carolina (34.38333°N, -75.58333°W). All 290 people on board rescued by USS Manley (DD-74).

12 April

 * SS Delvalle (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (16.85°N, -72.41667°W) by GS U-154 (1941) with the loss of two of ther 63 people on board. Survivors were rescued by HMCS Prince Henry (F70)  or reached land in their lifeboats.
 * SS Empire Lotus (🇬🇧 United Kingdom): World War II: Convoy SC 79: The cargo ship foundered in the Atlantic Ocean (44.1°N, -6.45°W). All crew were rescued.
 * SS Esso Boston (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 300 nmi north east of Saint Martin by GS U-130 (1941) . All 37 crew were rescued by USS Biddle (DD-151).
 * USS PT-35  : World War II: The (ELCO 77'-class pt boat) was scuttled at Cebu Shipyard and Engineering Works (10.3°N, 123.9°W)  when Cebu was invaded by the Japanese.

13 April

 * SS Atlas (1927) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Benghazi, Libya by HMS Thrasher (N37).
 * HMT Coral : World War II: The Naval Trawler was bombed and sunk at Malta.
 * SS El Occidente (🇵🇦 Panama): World War II: Convoy QP 10: The cargo ship was torpedoed and sunk in the Barents Sea (73.46667°N, 38.5°W) by GS U-435 with the loss of twenty of her 41 crew. Survivors were rescued by HMS Speedwell (J87).
 * SS Empire Amethyst (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Caribbean Sea between Jamaica and Haiti (17.66667°N, -74.83333°W) by U-154 with the loss of all 47 crew.
 * SS Empire Progress (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south of Cape Race, Newfoundland (40.48333°N, -52.58333°W) by GS U-402 with the loss of twelve of her 50 crew. Survivors were rescued by MV Olaf Fostenes (🇳🇴 Norway).
 * SS Harpalion (🇬🇧 United Kingdom): World War II: Convoy QP 10: The cargo ship was bombed and damaged in the Barents Sea by Junkers Ju 88 aircraft of the Luftwaffe and was abandoned by her 70 crew. She was later torpedoed and sunk (73.55°N, 27.31667°W) by GS U-435.
 * SS Kiev (1917) ( Soviet Union): World War II: Convoy QP 10: The cargo ship was torpedoed and sunk in the Barents Sea (73.36667°N, 28.8°W) by GS U-436 with the loss of six crew. Survivors were rescued by HMT Blackfly (FY117).
 * MV Korsholm (🇸🇪 Sweden): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 70 nmi off Cape Canaveral, Florida by GS U-123 (1940) with the loss of nine of her seventeen crew.
 * SS Leslie (1919) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Cape Canaveral by GS U-123 (1940) with the loss of four of her 32 crew. One survivor was rescued by SS Esso Bayonne (🇺🇸 United States), the rest reached land in their lifeboats. Leslie was raised and scrapped in August 1954.
 * HMT Lord Snowden : World War II: The Naval Trawler was sunk in a collision off Falmouth.
 * SS Ryujin Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean south west of Shikoku by USS Grayling (SS-209).

14 April

 * SS Empire Thrush (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in Chesapeake Bay, United States (35.13333°N, -75.3°W) by GS U-203 All 55 crew were rescued by USS Asterion (AK-100).
 * SS Korthion (🇬🇷 Greece): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south of Barbados (12.83333°N, -60.5°W) by GS U-66 (1940) with the loss of fourteen of her 23 crew.
 * SS Margaret (1916) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Cape Cod, Massachusetts by GS U-571 with the loss of all 29 crew.
 * GS U-85 (1941) : World War II: Operation Drumbeat: The Type VIIB submarine was shelled, depth charged and sunk in the Atlantic Ocean off the Bodie Island Lighthouse (33.91667°N, -75.21667°W) by USS Roper (DD-147) ( with the loss of all 29 crew.
 * GS U-252 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Ireland (47°N, -18.23333°W) by HMS Stork (L81) and HMS Vetch (K132) (both ) with the loss of all 44 crew.
 * HMS Upholder (P37) : World War II: The U-class submarine was depth charged and sunk at 34.78333°N, 15.91667°W by ITALIAN TORPEDO BOAT Pelago  with the loss of all 31 crew.

15 April
For the scuttling of the Dutch tanker Ocana on this day, see the entry for 25 March 1942
 * 'PT-41' : World War II: The ELCO 77'-class pt boat) was scuttled at Mindanao to prevent capture.

16 April

 * SS Amsterdam (1922) (🇳🇱 Netherlands): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (12°N, -62.75°W) by GS U-66 (1940) with the loss of two of her 40 crew. Survivors were rescued by SS Ivan (1914) ( undefined).
 * Bab el Farag (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea off the coast of Palestine by GS U-81 (1941).
 * SS Caspia (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Mediterranean Sea off the coast of Lebanon by GS U-81 (1941) with the loss of 27 of her 38 crew. Survivors were rescued by HMML-1023 and HMML-1032 (both ).
 * SS Desert Light (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (35.58333°N, -72.8°W) by GS U-572 with the loss of one of her 31 crew. Survivors were rescued by USS Roper (DD-147).
 * SS Empire Howard (🇬🇧 United Kingdom): World War II: Convoy PQ 14: The cargo ship was torpedoed and sunk in the Barents Sea (73.8°N, 21.53333°W) by GS U-403 with the loss of 25 of the 62 people on board. Survivors were rescued by HMT Lord Middleton (FY219) and HMT Northern Wave (FY153) (both ).
 * Fatouh el Kher (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk off Palestine by GS U-81 (1941).
 * SS Robin Hood (1919) (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi south east of Nantucket Island, Massachusetts (38.75°N, -66.75°W) by GS U-575 with the loss of fourteen of her 38 crew. Survivors were rescued by USS Greer (DD-145).
 * FRENCH TRAWLER Vikings : World War II: The anti-submarine trawler was torpedoed and sunk in the Mediterranean Sea 23 nmi off Beirut, Lebanon by GS U-81 (1941) with the loss of 41 of her 57 crew.

17 April

 * SS Alcoa Guide (🇺🇸 United States): World War II: The cargo ship was shelled and sunk in the Atlantic Ocean 300 nmi south east of Cape Hatteras, North Carolina (35.56667°N, -70.13333°W) by GS U-123 (1940) with the loss of six of her 34 crew. Survivors were rescued by USS Broome (DD-210)  and SS Hororata (🇬🇧 United Kingdom).
 * MV Heinrich von Riedemann (🇵🇦 Panama): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (11.91667°N, -63.78333°W) by GS U-66 (1940) . All 44 crew were rescued by MV Karmt (🇳🇴 Norway) and SS Maracaibo (1899) (🇻🇪 Venezuela).
 * MV Victoria (1941) (🇦🇷 Argentina): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 300 nmi east of Cape Hatteras, North Carolina, United States by GS U-201  and abandoned by her crew. She was subsequently boarded by men from USS Owl (AM-2)  and towed to New York for repairs. Victoria was requisitioned by the United States on 24 July and returned to service a week later as the Panamanian Culpeper.

18 April

 * SS Bellona (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Tobruk, Libya by HMS Thrasher (N37).
 * JAPANESE AIRCRAFT TRANSPORT Komaki Maru : World War II: The Aircraft Transport was bombed and sunk at Rabaul (-4.25°N, 152.33333°W) by 5th Air Force Martin B-26s . The stern of the ship exploded. The rest of the ship was scuttled by shore batteries. She sank in shallow water and submerged to close to the top of the hull. Her hull was filled with dirt and became a pier.
 * JAPANESE PATROL BOAT NO.23 Nitto Maru No. 23 : World War II: Doolittle Raid:The patrol boat was shelled and sunk in the Pacific Ocean by USS Nashville (CL-43).
 * SS Seefahrer (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank in the North Sea off Borkum, Lower Saxony. Later raised and laid up at Askøy, Hordaland, Norway. Scrapped post-war at Stavanger, Rogaland, Norway.
 * MV Victoria (1941) (🇦🇷 Argentina): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean 300 nmi east of Cape Hatteras, North Carolina, United States (36.68333°N, -68.8°W) by GS U-201 . All 39 crew abandoned ship and were rescued by USS Nicholson (DD-442) and USS Owl (AM-2) (both ). A salvage party from USS Owl and some of the ships crew managed to restart her engines and she was escorted into New York. Subsequently repaired, requisitioned by the War Shipping Administration and returned to service in July 1942 as the Panamanian Culpepper.

19 April

 * SS Assunta De Gregori ( undefined): World War II: The cargo ship was torpedoed and sunk by HMS Umbra (P35).
 * Hefz el Rahman (🇪🇬 Egypt): World War II: The sailing ship was rammed and sunk in the Mediterranean Sea off the coast of Palestine by GS U-81 (1941).

20 April

 * MV Agra (🇸🇪 Sweden): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 280 nmi north west of Bermuda (34.66667°N, -69.58333°W) by GS U-654 with the loss of six of her 39 crew. Survivors were rescued by MV Tercero (🇳🇴 Norway).
 * HMS Cotswold (L54) : World War II: Convoy FS 80: The Hunt-class destroyer struck a mine and was damaged in the North Sea off Aldeburgh, Suffolk with the loss of five crew. She was taken in tow and beached off Shotley, Suffolk. Refloated on 3 May, repaired and returned to service.
 * SS Empire Dryden (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean, 240 nmi north west of Bermuda by GS U-572 with the loss of 25 of her 47 crew. Survivors were rescued by SS City of Birmingham (1923) (🇺🇸 United States).
 * SS Harpagon (🇬🇧 United Kingdom): World War II: The convoy was torpedoed and sunk in the Atlantic Ocean 150 nmi north north west of Bermuda by GS U-109 (1940) with the loss of 41 of her 49 crew. Survivors were rescued by SS Rio Diamante (🇦🇷 Argentina).
 * SS Hödur (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Norwegian Sea off Namsos, Nord-Trøndelag, Norway by HMS Trident (N52).
 * SS Plawsworth (🇬🇧 United Kingdom): World War II: The cargo ship struck a mine and sank in the North Sea off Aldeburgh, Suffolk.
 * SS Steel Maker (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 350 nmi east of Wilmington, North Carolina (33.8°N, -70.6°W) by GS U-654 with the loss of one of her 48 crew. Survivors were rescued by SS Pacific Exporter (🇬🇧 United Kingdom) and USS Rowan (DD-405).
 * SS Vae Victis (🇧🇪 Belgium): World War II: The cargo ship struck a mine and sank in the North Sea, 3 nmi off Aldeburgh.
 * SS Vineland (🇨🇦 Canada): World War II: The Design 1022 cargo ship was torpedoed and sunk in the Atlantic Ocean (23.08333°N, -72.33333°W) by GS U-154 (1941) with the loss of one of her 35 crew.

21 April

 * SS Bris (1938) (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (33.58333°N, -69.58333°W) by GS U-201 with the loss of four of her 25 crew. Survivors were rescued by SS Chester O. Swain (🇺🇸 United States) and USS YT-132.
 * SS Chenango (🇵🇦 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 by GS U-84 (1941) with the loss of 31 of her 32 crew. The survivor was rescued by a Consolidated PBY Catalina aircraft of the United States Coast Guard.
 * HMT Jade : World War II: The naval trawler was bombed and sunk in the Grand Harbor Malta
 * SS Pipestone County (🇺🇸 United States): World War II: The Design 1022 cargo ship was torpedoed and sunk in the Atlantic Ocean 475 nmi east of Cape Henry, Virginia (37.71667°N, -66.26667°W) by GS U-576 . All 46 crew were rescued by USCGC Calypso (WPC-104), the fishing vessel Irene and May (🇺🇸 United States) and SS Tropic Star (🇳🇴 Norway).
 * SS West Imboden (🇺🇸 United States): World War II: The Design 1013 cargo ship was torpedoed and sunk in the Atlantic Ocean 175 nmi east of the Nantucket Lightship (41.23333°N, -65.91667°W) by GS U-752 . All 35 crew were rescued by USS Bristol (DD-453).

22 April

 * SS Blankenese (1929) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Barents Sea off Kirkenes, Finnmark, Norway by SOVIET SUBMARINE M-173.
 * SS Derryheen (🇬🇧 United Kingdom): World War II: The cargo ship, on her maiden voyage, was torpedoed and sunk in the Atlantic Ocean south east of Cape Hatteras, North Carolina, United States (31.33333°N, -70.58333°W) by GS U-201 . All 51 people on board were rescued by MV Lobos (🇬🇧 United Kingdom).
 * El Saadiah (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea off Palestine by GS U-81 (1941).
 * SS San Jacinto (🇺🇸 United States): World War II: The passenger ship was torpedoed, shelled and sunk in the Atlantic Ocean 375 nmi south east of Cape Hatteras (31.16667°N, -70.75°W) by GS U-201 with the loss of fourteen of the 183 people on board. Survivors were rescued  bh USS Rowan (DD-405).

23 April
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 * SS Connecticut (🇺🇸 United States): World War II: The Tanker was torpedoed and sunk in the Atlantic Ocean (-23°N, -15°W) by GERMAN MOTOR TORPEDO BOAT LS-4  operating from  GERMAN AUXILIARY CRUISER Michel   with the loss of 24 of her crew and 11 Naval Armed Guards. 18 survivors were rescued by  GERMAN AUXILIARY CRUISER Michel  and eventually turned over to the Japanese as P.O.W.s.
 * SS Kirkland (🇬🇧 United Kingdom): World War II: Convoy TA 36: The cargo ship was torpedoed and sunk in the Mediterranean Sea 35 nmi north west of Sidi Barrani, Egypt (31.85°N, 26.61667°W) by GS U-565 with the loss of one of her 23 crew. Survivors were rescued by HMT Falk (FY789).
 * SS Lammot Du Pont (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 500 nmi south east of Bermuda (27.16667°N, -57.16667°W) by GS U-125 (1940) with the loss of seventeen of her 54 crew. Survivors were rescued by MV Astri (🇸🇪 Sweden) and USS Tarbell (DD-142) .<ref
 * SS Stensaas (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Barents Sea off Sletnes, Finnmark (71.06667°N, 28.33333°W) by SOVIET SUBMARINE SC-401 . The crew were rescued by GERMAN SUBMARINE CHASER UJ-1101.

24 April

 * MV Empire Drum (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean, 280 nmi south east of New York, United States (37°N, -69.25°W) by GS U-136 (1941) . All 41 crew survived, they were rescued by USS Roper (DD-147) and  MV Venezia (🇸🇪 Sweden).

25 April

 * SS Leesee (🇩🇪 Germany): World War II: The cargo ship was bombed and sunk by aircraft off Norway.
 * SS Modesta (1916) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (33.66667°N, -63.16667°W) by GS U-108 (1940) with the loss of eighteen of her 41 crew. Survivors were rescued by MV Belgian Airman (🇧🇪 Belgium).
 * SS Toba Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea north west of Luzon, Philippines (17.01667°N, 120.25°W) by USS Spearfish (SS-190).

26 April

 * SS Alcoa Partner (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Caribbean Sea 80 nmi north west of Bonaire (13.53333°N, -67.95°W) by GS U-66 (1940) with the loss of ten of her 35 crew.
 * Aziza (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea off Palestine by GS U-81 (1941).
 * Ro-30 : World War II: The Ro-29-class submarine was torpedoed and sunk in the Pacific Ocean near Johnston Island, Marshall Islands by USS Tautog (SS-199).
 * USS Sturtevant (DD-240) : World War II: The Clemson-class destroyer struck a mine and sank in the Atlantic Ocean off Key West, Florida with the loss of 15 of her 130 crew.

27 April
No ships were lost on this day.

28 April

 * SS Arundo (🇳🇱 Netherlands): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 15 nmi south of the Ambrose Lightship (40.16667°N, -73.73333°W) by GS U-136 (1941)  with the loss of six of her 43 crew. Survivors were rescued by USS Lea (DD-118).
 * SS Tatsufuku Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea by USS Seal (SS-183).
 * HMS West Dean  : World War II: The West-class tug was bombed and sunk at Malta.

29 April

 * ST Alliance (🇬🇧 United Kingdom): World War II: The tug struck a mine and sank in the Mediterranean Sea off Famagusta, Cyprus (35.15°N, 33.93333°W) with the loss of three of her ten crew.
 * SS Curityba (1911) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk by the Soviet submarine M-171 off Vardø, Norway.
 * MV Harry G. Seidel (🇵🇦 Panama): World War II: The tanker was torpedoed and sunk in the Caribbean Sea west of Trinidad by GS U-66 (1940) with the loss of two of her 50 crew.
 * SS Mobiloil (🇺🇸 United States): World War II: The tanker was torpoedoed and sunk in the Atlantic Ocean 350 nmi north east of the Turks and Caicos Islands (26.16667°N, -66.25°W). All 52 crew were rescued by USS PC-490.
 *  Terpsithea (🇬🇧 United Kingdom): World War II: The schooner struck a mine and sank off Famagusta (35.15°N, 33.93333°W). All crew survived.
 * HMS Urge : World War II: The U-class submarine was sunk in the Mediterranean Sea off Ra's al-Hilal, Libya by a Fiat CR.42 aircraft of the Regia Aeronautica.

30 April

 * SS Ashkhabad ( Soviet Union): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 18 nmi south of Cape Lookout, North Carolina (34.31667°N, -76.51667°W) by GS U-402 . She was abandoned by her 47 crew, who were rescued by HMT Lady Elsa (FY214) . Ashkhabad was assessed as salvageable, and ST Relief (🇺🇸 United States) was despatched to her aid, but she was scuttled by USS Semmes (AG-24) and HMT St Zeno (FY280)  as a hazard to navigation.
 * MV Athelempress (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 180 nmi east of Barbados (13.35°N, -56.25°W) by GS U-162 (1941) with the loss of three of her 50 crew. Survivors were rescued by MV Atlantic (1925) (🇳🇴 Norway).
 * MV Bidevind (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (39.58333°N, -72.7°W) by GS U-752 . All 36 crew survived.
 * HMS Edinburgh (16) : World War II: Convoy QP 11: The Town-class cruiser was torpedoed and damaged in the Barents Sea north of Murmansk, Soviet Union (73.15°N, 32.75°W) by GS U-456 . She was taken in tow, but was torpedoed and sunk in the Kola Inlet on 2 May by GERMAN DESTROYER Z24 with the loss of 58 of her 750 crew. Survivors were rescued by HMS Gossamer (J63) and HMS Harrier (J71) (both ).
 * SS Federal (1901) (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 5 nmi north of Gibara, Cuba (21.21667°N, -76.08333°W) by GS U-507 with the loss of five of her 33 crew. Survivors were rescued by a Cuban fishing vessel or reached shore in their lifeboat.
 * SS Taborfjell (1937) (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 95 nmi off Cape Cod, Massachusetts, United States (41.86667°N, -67.71667°W) by GS U-576 with the loss of seventeen of her twenty crew. Survivors were rescued by HMS P552.

Unknown date

 * MV Chr. Knudsen (🇳🇴 Norway): World War II: The cargo ship departed from New York, United States for Cape Town, South Africa on 8 April; no further trace. It is possible that she was torpedoed and sunk by GS U-85 (1941) on 10 April with the loss of all 33 crew.
 * HMT Senateur Duhamel : The naval trawler collided with USS Semmes (DD-189) in the Atlantic Ocean off Cape Lookout, North Carolina and sank on 6 April or 6 May 1942. Survivors were rescued by USS Semmes.
 * GS U-702 : World War II: The Type VIIC submarine was lost on patrol in the North Sea on or after 3 April with the loss of all 44 crew.