List of shipwrecks in May 1944

The list of shipwrecks in May 1944 includes ships sunk, foundered, grounded, or otherwise lost during May 1944.

May 1944
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31		Unknown date

1 May

Asosan Maru ( Japan): World War II: The cargo ship was torpedoed and sunk by a submarine in the Philippine Sea at 7°07′N 129°56′E / 7.117°N 129.933°E / 7.117; 129.933.^[1]
CH-10 ( Imperial Japanese Navy): World War II: Convoy Higashi-Matsu No. 6: The CH-4 class submarine chaser ran aground and was wrecked off the north tip of Palau (07°20′N 134°30′E / 7.333°N 134.500°E / 7.333; 134.500) . She was abandoned by her crew the next day.^[2]
HMS HDML 1380 ( Royal Navy): World War II: The Harbour Defence Motor Launch sank in the Aegean Sea in a storm.^[3]
Janeta ( United Kingdom): World War II: The cargo ship was torpedoed and sunk in the South Atlantic 900 nautical miles (1,700 km) south by west of Ascension Island (18°14′S 20°00′W / 18.233°S 20.000°W / -18.233; -20.000) by U-181 ( Kriegsmarine) with the loss of thirteen of her 48 crew. Survivors were rescued by USS Alger ( United States Navy), Freja ( Sweden) and another vessel.^[4]
U-277 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Arctic Ocean south west of Bear Island, Norway (73°24′N 15°32′E / 73.400°N 15.533°E / 73.400; 15.533) by a Fairey Swordfish aircraft of 842 Squadron, Fleet Air Arm, based on HMS Fencer ( Royal Navy) with the loss of all 50 crew.^[5]
USS YP-95 ( United States Navy): World War II: The Yard Patrol Craft ran aground and sank in Beyer Bay, Adak, Alaska .^[6]

2 May

Amagi Maru ( Japan): World War II: The cargo ship was torpedoed and damaged in the Andaman Sea by HMS Tantalus ( Royal Navy). Torpedoed again the next day and sunk 40 miles south of Port Blair, Andaman Islands (10°54′N 93°12′E / 10.900°N 93.200°E / 10.900; 93.200). 4 troops killed. Survivors rescued by Kyo Maru No. 1 ( Imperial Japanese Navy).^[7]
USS Parrott ( United States Navy): The Clemson-class destroyer was in collision with the Liberty ship John Morton ( United States) at Norfolk, Virginia and was beached. Severely damaged, she was not repaired.
Ryogu Maru ( Imperial Japanese Army): World War II: The cargo ship was torpedoed and sunk in the Kuril Islands by USS Tautog ( United States Navy).^[8]
U-674 ( Kriegsmarine): World War II: The Type VIIC submarine was sunk in the Arctic Ocean of Narvik, Nordland, Norway (70°32′N 4°37′E / 70.533°N 4.617°E / 70.533; 4.617) by a rocket attack from a Fairey Swordfish aircraft of 842 Squadron, Fleet Air Arm based on HMS Fencer ( Royal Navy) with the loss of all 49 crew.^[9]
U-959 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Arctic Ocean south east of Jan Mayen, Norway (69°20′N 0°20′W / 69.333°N 0.333°W / 69.333; -0.333) by a Fairey Swordfish aircraft of 842 Squadron, Fleet Air Arm, based on HMS Fencer (D64) ( Royal Navy) with the loss of all 53 crew.^[10]

3 May

USS Donnell ( United States Navy): World War II: Convoy CU 22: The Buckley-class destroyer escort was torpedoed and damaged in the Atlantic Ocean 450 nautical miles (830 km) south west of Cape Clear Island, County Cork, Ireland (47°48′N 19°55′W / 47.800°N 19.917°W / 47.800; -19.917) by U-473 ( Kriegsmarine) with the loss of 29 of her 213 crew. She was taken in tow and arrived at Dunnstafnage Bay, Scotland on 12 May. Declared a constructive total loss, she was subsequently used as an accommodation ship at Lisahally, County Londonderry, Northern Ireland.
Fushima Maru ( Japan: World War II: The cargo ship was torpedoed and sunk in the Kuril Islands by USS Tautog ( United States Navy).^[8]
Teisen Maru ( Japan): World War II: The transport was torpedoed and sunk in the Sulu Sea (12°54′N 114°07′E / 12.900°N 114.117°E / 12.900; 114.117) by USS Flasher ( United States Navy). Her crew of 93, 6 Japanese, 27 Germans and 60 Chinese, sail to French Indochina arriving on 9 May.^[11]
U-852 ( Kriegsmarine): World War II: The Type IXD2 submarine was depth charged and damaged in the Arabian Sea by six Vickers Wellington aircraft of 8 and 621 Squadrons, Royal Air Force. She was beached on the coast of Italian East Africa at 9°32′N 50°59′E / 9.533°N 50.983°E / 9.533; 50.983 with the loss of seven on her 66 crew.^[12] Survivors were taken as prisoners of war by the Somaliland Camel Corps.

4 May

Daibu Maru ( Japan): World War II: Convoy TE-04: The iron ore carrier was torpedoed and sunk in the East China Sea (20°50′N 117°55′E / 20.833°N 117.917°E / 20.833; 117.917) by USS Tinosa ( United States Navy). 1 Gunner killed. Survivors rescued by Kazan Maru ( Imperial Japanese Navy).^[13]
Daiyoku Maru ( Japan): World War II: Convoy TE-04: The iron ore carrier was torpedoed and sunk in the East China Sea (20°50′N 117°55′E / 20.833°N 117.917°E / 20.833; 117.917) by USS Parche ( United States Navy). 15 Gunners, 2 passengers and 20 crewmen killed.^[13]
Kinrei Maru ( Japan): World War II: Convoy TE-04: The iron ore carrier was torpedoed and sunk in the East China Sea (20°50′N 117°55′E / 20.833°N 117.917°E / 20.833; 117.917) by USS Bang ( United States Navy). 6 crewmen killed.^[13]
Shoryu Maru ( Japan): World War II: Convoy TE-04: The iron ore carrier was torpedoed and sunk in the East China Sea (20°50′N 117°55′E / 20.833°N 117.917°E / 20.833; 117.917) by USS Parche ( United States Navy). 2 Gunners, 20 passengers and 42 crewmen killed.^[13]
Takima Maru ( Japan): World War II: The trawler was shelled and sunk in the Pacific Ocean by USS Tuna ( United States Navy). At least two crew survived.^[14]
Toyohi Maru ( Japan): World War II: Convoy TE-04: The iron ore carrier was torpedoed and sunk in the East China Sea (20°50′N 118°00′E / 20.833°N 118.000°E / 20.833; 118.000) by USS Tinosa ( United States Navy). 16 Gunners, 15 Watchmen, and 56 crewmen killed.^[13]^[15]
U-371 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and damaged in the Mediterranean Sea off Constantine, Algeria (37°49′N 5°39′E / 37.817°N 5.650°E / 37.817; 5.650) by HMS Blankney ( Royal Navy), L'Alcyon, Sénégalais (both Free French Naval Forces), USS Joseph E. Campbell and USS Pride (both United States Navy). She surfaced and was scuttled with the loss of two of her 52 crew.
U-846 ( Kriegsmarine): World War II: The Type IXC/40 submarine was depth charged and sunk in the Bay of Biscay north of Cape Ortegal, Spain (46°04′N 9°20′W / 46.067°N 9.333°W / 46.067; -9.333) by a Vickers Wellington aircraft on 407 Squadron, Royal Canadian Air Force with the loss of all 57 crew.^[16]

5 May

USS Fechteler ( United States Navy): World War II: Convoy GUS 38: The Buckley-class destroyer escort was torpedoed and sunk in the Mediterranean Sea (36°07′N 2°40′W / 36.117°N 2.667°W / 36.117; -2.667) by U-967 ( Kriegsmarine) with the loss of 29 of her 215 crew. Survivors were rescued by USS Laning ( United States Navy) and other ships.
HMS MTB 708 ( Royal Navy): World War II: The Fairmile D motor torpedo boat was bombed by Allied aircraft and then shelled and sunk by Allied warships in the English Channel.^[17]
USS PT-247 ( United States Navy): World War II: The Higgins 78'-class PT Boat was sunk by IJN barges and shore batteries off Bougainville Island (06°38′S 156°01′E / 6.633°S 156.017°E / -6.633; 156.017).^[18]

6 May

Aden Maru ( Imperial Japanese Army): World War II: Take Ichi convoy: The Daifuku Maru No. 1 class transport was torpedoed and sunk in the Celebes Sea (02°42′N 124°07′E / 2.700°N 124.117°E / 2.700; 124.117) by USS Gurnard ( United States Navy). 499 troops, 4 Gunners and 12 crewmen killed.^[19]
Almora ( Germany): World War II: The cargo ship was torpedoed and sunk off Hustadvika, Møre og Romsdal, Norway by aircraft based on HMS Furious and HMS Searcher (both Royal Navy).^[20]
Anadyr ( United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 600 nautical miles (1,100 km) south east of Recife, Brazil (10°55′S 27°30′W / 10.917°S 27.500°W / -10.917; -27.500) by U-129 ( Kriegsmarine) with the loss of six of her 53 crew.^[21]
Nisshin Maru ( Imperial Japanese Navy): World War II: Convoy MI-02: The tanker was torpedoed and sunk south of Balibac Island (07°19′N 116°52′E / 7.317°N 116.867°E / 7.317; 116.867) by USS Crevalle ( United States Navy). 15 crewmen killed.^[22]
Tajima Maru ( Japan): World War II: Take Ichi convoy: The cargo ship was torpedoed and sunk in the Celebes Sea (02°42′N 124°07′E / 2.700°N 124.117°E / 2.700; 124.117) by USS Gurnard ( United States Navy). 58 troops, 9 Gunners and 3 crewmen killed.^[19]
Tenshinzan Maru ( Japan): World War II: Take Ichi convoy: The cargo liner (A.K.A. Amatsuzan Maru) was torpedoed and sunk in the Celebes Sea by USS Gurnard ( United States Navy). 95 troops killed.^[19]
Tento ( Norway): World War II: The cargo ship struck a mine and sank in Kiel Bay.^[23]
Toyoura Maru ( Japan): World War II: Convoy TAMO-18: The cargo ship was torpedoed and sunk in the East China Sea north of the Ryukyu Islands (32°16′N 127°08′E / 32.267°N 127.133°E / 32.267; 127.133) by USS Spearfish ( United States Navy). 3 passengers and 32 crewmen killed.^[24]
U-669 ( Kriegsmarine): World War II: The Type IXC submarine was depth charged in the Atlantic Ocean west of the Cape Verde Islands (17°17′N 32°29′W / 17.283°N 32.483°W / 17.283; -32.483) by aircraft based on USS Block Island ( United States Navy). She was then rammed and sunk by USS Buckley ( United States Navy) with the loss of 24 of her 60 crew.
U-473 ( Kriegsmarine): World War II: The Type VIIC submarine was sunk in the Atlantic Ocean south-west of Ireland (49°29′N 21°22′W / 49.483°N 21.367°W / 49.483; -21.367) by HMS Starling, HMS Wild Goose and HMS Wren (all Royal Navy) with the loss of 23 of her 53 crew.^[25]
U-765 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (52°30′N 28°28′W / 52.500°N 28.467°W / 52.500; -28.467) by two Fairey Swordfish aircraft of 825 Squadron, Fleet Air Arm, based on HMS Vindex and also by HMS Aylmer, HMS Bickerton and HMS Bligh (all Royal Navy) with the loss of 37 of her 48 crew.^[26]

7 May

Moder II ( Norway): World War II: The fishing cutter was intercepted in Varangerfjord by a Soviet Navy torpedo boat. She was set on fire and sunk. All fifteen people on board were taken on board the torpedo boat.^[27]
Rossbach ( Kriegsmarine): World War II: The tanker was torpedoed and sunk in the Kii Channel (33°14′N 134°40′E / 33.233°N 134.667°E / 33.233; 134.667) by USS Burrfish ( United States Navy).^[28]
HMCS Valleyfield ( Royal Canadian Navy): World War II: Convoy ONM 234: The River-class frigate was torpedoed and sunk in the Atlantic Ocean south east of Cape Race, Newfoundland by U-548 ( Kriegsmarine) with the loss of 129 of her 167 crew. Survivors were rescued by HMCS Giffard ( Royal Canadian Navy).^[29]^[30]

8 May

Bizon ( Nazi Germany): World War II: The cargo ship was sunk off the Corbière Lighthouse, Jersey by MTBs 91, 92, 227 and 229 ( Free French Naval Forces).^[31]
Miyazaki Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Tautog ( United States Navy).^[8]

9 May

Odin ( Germany): World War II: The cargo ship struck a mine and sank off Narvik, Norway.^[32]
PC-558 ( United States Navy): World War II: The PC-461-class submarine chaser was torpedoed and sunk in the Mediterranean Sea (38°41′N 13°43′E / 38.683°N 13.717°E / 38.683; 13.717) by U-230 ( Kriegsmarine) with the loss of 35 of her 65 crew. Survivors were rescued by USS PC-1235 ( United States Navy).

10 May

Choan Maru No.2 ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Marianas Islands (11°31′N 143°41′E / 11.517°N 143.683°E / 11.517; 143.683) by USS Silversides ( United States Navy). Survivors rescued by CH-30 ( Imperial Japanese Navy).^[33]
Karukaya ( Imperial Japanese Navy): World War II: Convoy MI-03: The Wakatake-class destroyer was torpedoed and sunk in the South China Sea 150 miles northwest of Manila (15°47′N 119°32′E / 15.783°N 119.533°E / 15.783; 119.533) by USS Cod ( United States Navy). 13 crewmen killed and 60 missing.^[34]^[35]
Mikage Maru No. 2 ( Japan): World War II: The cargo liner was torpedoed and sunk in the Pacific Ocean west of the Marianas Islands (11°31′N 143°41′E / 11.517°N 143.683°E / 11.517; 143.683) by USS Silversides ( United States Navy). Survivors rescued by CH-30 ( Imperial Japanese Navy).^[33]
Okinawa Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Marianas Islands (11°31′N 143°41′E / 11.517°N 143.683°E / 11.517; 143.683) by USS Silversides ( United States Navy). Survivors rescued by CH-30 ( Imperial Japanese Navy).^[33]
Patria ( Sweden): World War II: The schooner struck a mine and sank off Møn, Denmark.^[36]
Shohei Maru ( Japan): World War II: Convoy MI-03: The Transport was torpedoed and sunk in the South China Sea 150 miles northwest of Manila (15°47′N 119°32′E / 15.783°N 119.533°E / 15.783; 119.533) by USS Cod ( United States Navy). 12 passengers and 8 crewmen killed.^[35]

11 May

Choi Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Celebes Sea by USS Rasher ( United States Navy).^[37]
Empire Heath ( United Kingdom: World War II: The cargo ship was torpedoed and sunk in the South Atlantic (approximately 19°S 31°W / 19°S 31°W / -19; -31) by U-129 ( Kriegsmarine) with the loss of her Master, 1 passenger, 8 Gunners and 47 crewmen. The only survivor was taken on board U-129 as a prisoner of war.^[38]^[39]
Helga Germany): World War II: The cargo ship was bombed and sunk in the Black Sea off Sevastopol by Soviet aircraft.^[40]
Mitakesan Maru ( Imperial Japanese Navy): World War II: The Transport (A.K.A. Mitsukesan Maru) was torpedoed and sunk in the Pacific Ocean 20 miles west of Lolo Point, Saipan (14°57′N 145°30′E / 14.950°N 145.500°E / 14.950; 145.500) by USS Sand Lance ( United States Navy). 1 crewman killed.^[41]
Seiryu Maru ( Japan): World War II: Convoy No. 4510: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Bonin Islands25°50′N 141°50′E / 25.833°N 141.833°E / 25.833; 141.833) by USS Sturgeon ( United States Navy). 131 construction troops, 7 Gunners and 9 crewmen killed.^[42]
V-6113 ( Kriegsmarine): World War II: The patrol boat was torpedoed and sunk by aircraft off Tana, Norway.^[43]
USS YF-415 ( United States Navy): World War II: The self-propelled Covered Lighter was sunk by an explosion off the US east coast.^[44]^[45]

12 May

Banei Maru No.2 ( Japan): World War II: The cargo ship was torpoedoed and sunk in the Pacific Ocean by USS Tautog ( United States Navy).^[8]
Durostor ( Romanian Naval Forces): World War II: The minelayer was sunk in the Black Sea by Soviet aircraft.^[46]
Romania ( Romanian Naval Forces): World War II: The minelayer was sunk in the Black Sea by Soviet aircraft.^[47]
SKA-0376 ( Soviet Navy): World War II: The MO-class minesweeper was torpedoed and sunk in the Black Sea (41°58′N 41°27′E / 41.967°N 41.450°E / 41.967; 41.450) by U-24 ( Kriegsmarine).^[48]
TS-3 ( Kriegsmarine): World War II: The minesweeper was bombed and sunk by aircraft in the Baltic Sea between Møn, Denmark, and Darß, Germany.^[49]
Marco Polo ( Italy): World War II: The ocean liner was scuttled at La Spezia, Liguria. She was refloated in 1949 or 1950 and scrapped.^[50]

13 May

Johann Faulbaum ( Germany): World War II: The cargo ship was bombed and sunk by Royal Air Force aircraft at Jarfjord near Kirkenes, Norway.^[51]
RO-501 ( Imperial Japanese Navy): World War II: The Type IXC/40 submarine (A.K.A. Satsuki No. 2 and U-1224) was depth charged and sunk in the Atlantic Ocean south of the Azores, Portugal (18°07′59″N 33°12′59″W / 18.13306°N 33.21639°W / 18.13306; -33.21639) by USS Francis M. Robinson ( United States Navy) with the loss of all 52 crew.

14 May

Bisan Maru ( Japan): World War II: The transport (A.K.A. Miyama Maru) was torpedoed and sunk in the Pacific Ocean north north west of Palau by USS Bowfin and USS Aspro (both United States Navy). 83 civilian refugees and 2 crewmen killed. Survivors rescued by Jokuja Maru ( Japan).^[52]
Inazuma ( Imperial Japanese Navy): World War II: The Fubuki-class destroyer was torpedoed and sunk in the Celebes Sea off Tawitawi (5°08′N 119°38′E / 5.133°N 119.633°E / 5.133; 119.633) by USS Bonefish ( United States Navy) with the loss of 94 of her 219 crew. Survivors were rescued by Hibiki ( Imperial Japanese Navy).
M-435 ( Kriegsmarine): World War II: The minesweeper was attacked by rocket-armed aircraft and foundered under tow off Schiermonnikoog, the Netherlands.^[53]
MO-122 ( Soviet Navy): World War II: The MO-class minesweeper was sunk in the Baltic Sea by Schnellboots ( Kriegsmarine). 9 crewmen killed.^[54]
U-1234 ( Kriegsmarine): The Type IXC/40 submarine collided with Anton ( Germany) at Gotenhafen, Pomerania and sank. She was later raised, repaired and returned to service in October 1944.
Vesta ( Netherlands): World War II: The cargo ship was bombed and sunk by aircraft of No. 236 Squadron RAF and No. 254 Squadron RAF north of Terschelling, the Netherlands.^[55]

15 May

Jokuja Maru ( Imperial Japanese Army): World War II: The Standard Type 1A Transport was torpedoed and sunk in the Pacific Ocean north north west of Palau (10°10′N 131°32′E / 10.167°N 131.533°E / 10.167; 131.533) by USS Aspro ( United States Navy). 7 Gunners and 4 crewmen killed.^[52]
USS LCT-984 ( United States Navy): World War II: The landing craft tank was being transported as deck cargo on an LST when it broke lose in heavy seas and fell overboard and was swamped off Hawaii Territory. She was scuttled by USS PC-1079 ( United States Navy).^[56]
USS LCT-988 ( United States Navy): World War II: The landing craft tank was being transported as deck cargo on an LST when it broke lose in heavy seas and fell overboard and sank off Hawaii Territory.^[56]
U-731 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean by two Consolidated PBY Catalina aircraft of the United States Navy and also by HMT Blackfly and HMS Kilmarnock (both Royal Navy) with the loss of all 54 crew.^[57]

16 May

I-176 ( Imperial Japanese Navy): World War II: The Kaidai-class submarine was depth charged and sunk in the Pacific Ocean off Buka Island, Solomon Islands (4°01′S 15°29′E / 4.017°S 15.483°E / -4.017; 15.483) by USS Franks, USS Haggard and USS Johnston (all United States Navy) with the loss of all 86 crew.^[58]
U-616 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and damaged in the Mediterranean Sea east of Cartagena, Spain by USS Ellyson, USS Emmons, USS Gleaves, USS Hambleton, USS Macomb, USS Nields and USS Rodman (all United States Navy) and by a Vickers Wellington aircraft of 36 Squadron, Royal Air Force. She was consequently scuttled the next day at 36°46′N 0°52′E / 36.767°N 0.867°E / 36.767; 0.867 due to damage received. All 53 crew survived, 30 of them were rescued by USS Ellyson.^[59]^[60]

17 May

Fukko Maru ( Japan): World War II: The Transport was torpedoed and sunk in the Pacific Ocean by USS Sand Lance ( United States Navy). 1 troop, 1 Gunner and 9 crewmen killed.^[61]
Nichiwa Maru ( Japan): World War II: The Transport was torpedoed and sunk in the Pacific Ocean by USS Tunny ( United States Navy). 324 troops, 1 Gunner and 6 crewmen killed.^[62]
Shinrei Maru ( Japan): World War II: The Transport was bombed and sunk at Surabaya by aircraft from HMS Illustrious ( Royal Navy).^[63]
Taikoku Maru ( Japan): World War II: The Transport was torpedoed and sunk in the Pacific Ocean by USS Sand Lance ( United States Navy). 2 crewmen killed.^[61]
Toryu Maru ( Empire of Japan): World War II: The freighter ran aground and was wrecked off Choshi.^[64]
U-616 ( Kriegsmarine): World War II: The Type IXC submarine was depth charged and sunk in the Mediterranean Sea off Algeria by USS Hilary P. Jones and three other vessels (all United States Navy).^[65]

18 May

HNLMS Arend ( Royal Netherlands Navy): World War II: The White 73'-class Motor Torpedo Boat struck a mine and sank off Boulogne, France.^[66]
Shinryu Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Sulu Sea by USS Puffer ( United States Navy).^[67]

19 May

Fort Missanabie ( United Kingdom): World War II: Convoy HA 43: The Fort ship was torpedoed and sunk in the Mediterranean Sea (38°20′N 16°38′E / 38.333°N 16.633°E / 38.333; 16.633) by U-453 ( Kriegsmarine) with the loss of twelve of her 60 crew. Survivors were rescued by Urania ( Regia Marina) and Spero ( Norway).^[68]^[69]
I-16 ( Imperial Japanese Navy): World War II: The Type C submarine was hedgehogged and sunk in the Pacific Ocean 140 nautical miles (260 km) north west of Cape Alexander, Solomon Islands (05°10′S 158°10′E / 5.167°S 158.167°E / -5.167; 158.167) by USS England ( United States Navy).^[70]
U-960 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged, shelled and sunk in the Mediterranean Sea by USS Ludlow, USS Niblack (both United States Navy), Lockheed Ventura aircraft of 500 Squadron, Royal Air Force and Vickers Wellington aircraft of 36 Squadron, Royal Air Force with the loss of 31 of her 51 crew. Survivors were taken as prisoners of war.^[71]^[72]
U-1015 ( Kriegsmarine): The Type VIIC/41 submarine collided with U-1014 ( Kriegsmarine) and sank in the Baltic Sea west of Pillau, West Prussia (55°09′N 19°11′E / 55.150°N 19.183°E / 55.150; 19.183) with the loss of 36 of her 50 crew.^[73]

20 May

HNLMS Marken ( Royal Netherlands Navy): World War II: The MMS-class minesweeper struck a mine and sank in the Thames Estuary.^[74]
Otori Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Java Sea by USS Angler ( United States Navy).^[75]
S-223 ( Kriegsmarine): World War II: The Schnellboot was sunk in an air attack.^[76]
Soshei Maru ( Japan): World War II: The coaster was torpedoed and sunk in the Pacific Ocean off the Marianas Islands by USS Silversides ( United States Navy).^[33]
HMT Wyoming ( Royal Navy): The naval trawler was sunk by a mine 20 miles east-north-east of Harwick.^[77]

21 May

LST-39 and LST-480 still ablaze on 22 May 1944.

Hochheimer ( Germany): World War II: The cargo ship was torpedoed and sunk by HMS Sceptre ( Royal Navy) off Santoña, Spain.^[78]
USS LCT-961 ( United States Navy): World War II: West Loch disaster: The Mk VI-class Landing Craft, Tank was lost as deck cargo on an LST lost at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[79]
USS LCT-963 ( United States Navy): World War II: West Loch disaster: The Mk VI-class Landing Craft, Tank was lost as deck cargo on an LST lost at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[80]
USS LCT-983 ( United States Navy): World War II: West Loch disaster: The Mk VI-class Landing Craft, Tank was lost as deck cargo on an LST lost at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[81]
USS LST-39 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was sunk at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and used as a barge.^[82]
USS LST-43 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was sunk at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[83]
USS LST-69 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was sunk at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[84]
USS LST-179 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was sunk at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[85]
USS LST-353 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was sunk at Pearl Harbor, Hawaii when mortar shells being offloaded exploded starting a chain of explosions and fires. Wreckage raised and resunk in deep water off Pearl Harbor.^[86]
USS LST-480 ( United States Navy): World War II: West Loch disaster: The LST-1-class tank landing ship was burned out at Pearl Harbor, Hawaii when mortar shells being offloaded from LST-353 exploded starting a chain of explosions and fires. She was beached and abandoned.^[87]
Solbjørn ( Norway): World War II: The coaster struck a mine and sank in Follafjord.^[88]
U-453 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Ionian Sea north east of Cape Spartivento, Calabria, Italy (38°13′N 16°30′E / 38.217°N 16.500°E / 38.217; 16.500) by HMS Liddesdale, HMS Tenacious and HMS Termagant (all Royal Navy) with the loss of one of her 52 crew.^[89]

22 May

Asanagi ( Imperial Japanese Navy): World War II: The Kamikaze-class destroyer was torpedoed and sunk in the Pacific Ocean 200 nautical miles (370 km) north west of Chichijima (28°20′N 138°57′E / 28.333°N 138.950°E / 28.333; 138.950) by USS Pollack ( United States Navy). 82 crewmen killed.^[90]
Campopisano ( Italy): The cargo ship sank off Secche di Vada, cause unknown.^[91]
RO-106 ( Imperial Japanese Navy): World War II: The Ro-100-class submarine was hedgehogged and sunk in the Pacific Ocean north of the Admiralty Islands (01°40′N 150°31′E / 1.667°N 150.517°E / 1.667; 150.517) by USS England ( United States Navy).^[92]
Tempei Maru ( Japan): World War II: Convoy H-26: The cargo ship was torpedoed and sunk in the Davao Gulf (05°16′S 128°08′E / 5.267°S 128.133°E / -5.267; 128.133) by USS Ray ( United States Navy). 11 passengers, 5 Gunners and 19 crewmen killed.^[93]

23 May

Baldur ( Germany): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Castro Urdiales, Spain by HMS Sceptre ( Royal Navy).^[94]
Daijun Maru ( Japan): World War II: Convoy H-26: The cargo ship was torpedoed and sunk in the Molucca Sea (02°42′N 128°08′E / 2.700°N 128.133°E / 2.700; 128.133) by USS Ray ( United States Navy). 2 Gunners and 3 crewmen killed. 2 Daihatsu landing barges were lost as cargo.^[95]
Greif ( Kriegsmarine): World War II: The torpedo boat was bombed by aircraft and sank off Ouistreham, France (49°21′N 00°19′W / 49.350°N 0.317°W / 49.350; -0.317) while being towed away.^[96]
Ro-104 ( Imperial Japanese Navy): World War II: The Ro-100-class submarine was hedgehogged and sunk in the Pacific Ocean north of the Admiralty Islands (01°20′N 149°20′E / 1.333°N 149.333°E / 1.333; 149.333) by USS England ( United States Navy).^[97]
Wales Maru ( Imperial Japanese Army): World War II: The Nanman Maru class transport was torpedoed and sunk in the South China Sea by USS Lapon ( United States Navy). 50 men of Unit 234, Independent Flight Corps and 13 crewmen killed.^[98]

24 May

Bizen Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea (07°30′N 109°08′E / 7.500°N 109.133°E / 7.500; 109.133) by USS Lapon ( United States Navy). 3 Guards and 22 crewmen killed^[99]
Iki ( Imperial Japanese Navy): World War II: The Etorofu-class escort ship was torpedoed and sunk in the South China Sea north of the Tambelan Islands by USS Raton ( United States Navy). 160 crewmen killed, 18 rescued by Etorofu ( Imperial Japanese Navy) .^[100]
Ro-116 ( Imperial Japanese Navy): World War II: The Ro-100-class submarine was hedgehogged and sunk in the Pacific Ocean north of the Admiralty Islands (00°53′N 149°14′E / 0.883°N 149.233°E / 0.883; 149.233) by USS England ( United States Navy).^[101]
Tatekawa Maru ( Imperial Japanese Navy): World War II: The tanker was torpedoed and sunk in the Celebes Sea (05°45′N 125°43′E / 5.750°N 125.717°E / 5.750; 125.717) by USS Gurnard ( United States Navy). 10 Gunners and 17 crewmen killed.^[19]
U-476 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and damaged in the Norwegian Sea off Trondheim, Sør-Trøndelag, Norway by a Consolidated PBY Catalina aircraft of 210 Squadron, Royal Air Force with the loss of 34 of her 55 crew. She was scuttled the next day at 65°08′N 4°53′E / 65.133°N 4.883°E / 65.133; 4.883 by U-990 ( Kriegsmarine), which rescued the survivors.^[102]
U-675 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Norwegian Sea west of Ålesund, Møre og Romsdal, Norway (62°27′N 3°04′E / 62.450°N 3.067°E / 62.450; 3.067) by a Short Sunderland aircraft of 4 Squadron, Royal Air Force with the loss of all 51 crew.^[103]
UJ-2223 ( Kriegsmarine): World War II: The Gabbiano-class corvette was torpedoed and sunk off the Vada Rocks by USS PT-202, USS PT-213, and USS PT-218 all ( United States Navy) .^[104]
Werner Vinnen ( Germany): World War II: The cargo ship struck a mine and sank off Vogelsand, Germany.^[105]

25 May

Beilul ( Kriegsmarine): World War II: The Ex-Italian Adua-class submarine was bombed and sunk at Monfalcone, Italy by the R.A.F. while being prepared for Kriegsmarine service.^[106]
M-39 ( Kriegsmarine): World War II: The minesweeper was torpedoed and sunk off Lion-sur-Mer, France.^[107]
Osaka Maru ( Japan): World War II: The transport was torpedoed and sunk in the Pacific Ocean 200 miles north west of Yap (11°12′N 135°14′E / 11.200°N 135.233°E / 11.200; 135.233) by USS Flying Fish ( United States Navy). 97 passengers killed.^[108]
Solviken ( Norway): World War II: The cargo ship was torpedoed and sunk in the Barents Sea east of Cape Nordkinn, Finnmark by Soviet Air Force aircraft with the loss of two crew.^[88]
Taito Maru ( Imperial Japanese Navy): World War II: The transport was torpedoed and sunk in the Pacific Ocean 200 miles north west of Yap (11°12′N 135°14′E / 11.200°N 135.233°E / 11.200; 135.233) by USS Flying Fish ( United States Navy). 18 crewmen and passengers killed.^[108]
U-990 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the North Sea west of Bodø, Nordland, Norway (65°05′N 7°28′E / 65.083°N 7.467°E / 65.083; 7.467) by a Consolidated B-24 Liberator aircraft of 59 Squadron, Royal Air Force with the loss of 20 of her 53 crew.^[109]

26 May

Chigo Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Mariana Islands by USS Tambor ( United States Navy).^[110]
Ro-108 ( Imperial Japanese Navy): World War II: The Ro-100-class submarine was hedgehogged and sunk in the Pacific Ocean north of the Admiralty Islands off Seeadler Harbor, Manus (00°32′S 149°56′E / 0.533°S 149.933°E / -0.533; 149.933) by USS England ( United States Navy).^[111]
UJ-2229 ( Kriegsmarine): World War II: The submarine chaser was torpedoed and sunk by HMS Universal ( Royal Navy).^[112]

27 May

USS PT-339 ( United States Navy): World War II: The ELCO 80'-class PT Boat ran aground off the north shore of New Guinea and was scuttled (04°01′S 144°41′E / 4.017°S 144.683°E / -4.017; 144.683).^[113]
U-292 ( Kriegsmarine): World War II: The Type VIIC/41 submarine was depth charged and sunk in the Norwegian Sea west of Trondheim, Sør-Trøndelag, Norway (62°37′N 0°57′E / 62.617°N 0.950°E / 62.617; 0.950) by a Consolidated B-24 Liberator aircraft of 59 Squadron, Royal Air Force with the loss of all 51 crew.^[114]

28 May

MTB 732 ( Royal Navy): World War II: The Fairmile D motor torpedo boat was shelled and sunk in the English Channel by La Combattante ( Free French Naval Forces).^[115]
Snasei Maru ( Japan): World War II: The troopship was torpedoed and sunk in the South China Sea off Tsushima Island by USS Sealion ( United States Navy).^[116]
Uj-2210 ( Kriegsmarine): World War II: The submarine chaser was torpedoed and sunk by US Navy motor torpedo boats off Stromboli, Italy.

29 May

Anshu Maru ( Imperial Japanese Navy): World War II: The cargo ship was torpedoed and damaged in the Celebes Sea off 19 miles south south west of Manado, Dutch East Indies (03°40′N 126°58′E / 3.667°N 126.967°E / 3.667; 126.967) by USS Rasher ( United States Navy). She sank the next day with out loss of life.^[37]
USS Block Island ( United States Navy): World War II: The Bogue-class escort carrier was torpedoed and sunk in the Atlantic Ocean off the Canary Islands (31°13′N 23°03′W / 31.217°N 23.050°W / 31.217; -23.050) by U-549 ( Kriegsmarine) with the loss of six of her 957 crew.
Horaizan Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Marianas Islands by USS Silversides ( United States Navy). An unidentified IJN midget sub under tow was dragged down and sunk.^[33]
Shoken Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Marianas Islands by USS Silversides ( United States Navy). An unidentified IJN midget sub under tow was dragged down and sunk.^[33]
Smelyj ( Soviet Union): World War II: The tug was torpedoed and sunk in the Black Sea (42°51′N 41°03′E / 42.850°N 41.050°E / 42.850; 41.050) by U-23 ( Kriegsmarine) with the loss of eleven crew.^[117]
U-549 ( Kriegsmarine): World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean (31°13′N 23°03′W / 31.217°N 23.050°W / 31.217; -23.050) by USS Ahrens and USS Eugene E. Elmore (both United States Navy) with the loss of all 57 crew.

30 May

HMS Firmament ( Royal Navy) : World War II: The Naval Whaler ran aground at Alexandria, Egypt and sank.^[118]
Inverlane ( United Kingdom): World War II: The Admiralty requisitioned cargo ship was scuttled in Burra Sound, Scapa Flow as a Block Ship.^[119]
Shiga Maru ( Japan): World War II: The coaster was torpedoed and sunk in the Pacific Ocean off Mutoro Zaki, Japan by USS Pompon ( United States Navy).^[120]

31 May

Henry Burgh ( United States): World War II: The Liberty ship ran aground in the Farallon Islands and was wrecked. One hundred and ninety-two people were rescued by USS Lawrence ( United States Navy).^[121]^[122]
Hokuyo Maru ( Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Herring ( United States Navy). 38 crewmen killed.^[123]
Ishigaki ( Imperial Japanese Navy): World War II: The Shimushu-class escort ship was torpedoed and sunk in the Pacific Ocean by USS Herring ( United States Navy) with the loss of 167 crew.^[124]
Kotaka ( Imperial Japanese Navy): World War II: The Kotaka-class gunboat was bombed and sunk on the Yangtze River by Chinese aircraft.^[125]
Koto Maru ( Imperial Japanese Navy): World War II: The transport was torpedoed and sunk in the Pacific Ocean by USS Barb ( United States Navy). 36 crewmen killed.^[124]
M-13 ( Kriegsmarine): World War II: The minesweeper struck one of her own mines and sank in the Gironde estuary, France.^[126]
Madras Maru ( Imperial Japanese Army): World War II: The transport was torpedoed and sunk in the Pacific Ocean by USS Barb ( United States Navy). 45 crew, 31 Gunners and 63 passengers killed. 161 survivors board 2 Daihatsu landing barges that floated free from the sinking ship and sail to land.^[124]
Ro-105 ( Imperial Japanese Navy): World War II: The Ro-100-class submarine was hedgehogged and sunk in the Pacific Ocean north of the Admiralty Islands (00°47′N 149°56′E / 0.783°N 149.933°E / 0.783; 149.933) by USS England ( United States Navy).^[127]
U-289 ( Kriegsmarine): World War II: The Type VIIC submarine was depth charged and sunk in the Barents Sea south west of Bear Island, Norway (73°32′N 0°28′E / 73.533°N 0.467°E / 73.533; 0.467) by HMS Milne ( Royal Navy) with the loss of all 51 crew.^[128]

Unknown date

Stephen Crane ( United States): World War II: The Liberty ship was bombed and damaged in the Pacific Ocean by Japanese aircraft and beached. Later refloated and eventuially was declared a constructive total loss. Towed to the James River, Virginia, and laid up. Scrapped in Baltimore, 1958.^[129]
U-240 ( Kriegsmarine): World War II: The Type VIIC submarine departed from Kristiansand, Vest-Agder, Norway on patrol on 13th. No further trace, lost with all 50 crew between the 13th and 17th.
UJ-2223 ( Kriegsmarine): World War II: The Gabbiano-class corvette was bombed and sunk at Genoa by US aircraft on 16 August 1944, or sunk by USS PT-202, USS PT-213, and USS PT-218 (all ( United States Navy)) on 24 May 1944.^[130]

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Ship events in 1944
Ship launches:	1939	1940	1941	1942	1943	1944	1945	1946	1947	1948	1949
Ship commissionings:	1939	1940	1941	1942	1943	1944	1945	1946	1947	1948	1949
Ship decommissionings:	1939	1940	1941	1942	1943	1944	1945	1946	1947	1948	1949
Shipwrecks:	1939	1940	1941	1942	1943	1944	1945	1946	1947	1948	1949

Shipwrecks 1939–45, by month

1939	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1940	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1941	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1942	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1943	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1944	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1945	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date