List of shipwrecks in April 1945

The list of shipwrecks in April 1945 includes ships sunk, foundered, grounded, or otherwise lost during April 1945.

April 1945
Mon	Tue	Wed	Thu	Fri	Sat	Sun
Unknown date						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

1 April

List of shipwrecks: 1 April 1945

Ship	Country	Description
Adler	Kriegsmarine	World War II: The Adler class gunnery training ship, a former Herluf Trolle class Coast Defence Battleship, was sunk at Kiel by Allied aircraft.
Armenier	United Kingdom	World War II: The cargo ship was scuttled or beached off Littlehampton, West Sussex.
Awa Maru	Japan	World War II: The hospital ship, a former ocean liner, was torpedoed and sunk by the submarine USS Queenfish (United States Navy) while marked with illuminated white cross and after having been guaranteed safe passage by the Allies. There was only one survivor among the 2,005 people on board.
Uta	Kriegsmarine	World War II: The Repair Ship, a converted Kriemhild class River Guard Ship, was sunk on the Danube River by aircraft. Raised, repaired and put in Soviet service as Angara.

2 April

List of shipwrecks: 2 April 1945

Ship	Country	Description
CD-186	Imperial Japanese Navy	World War II: The Type D escort ship was sunk in the East China Sea south west of Amami Ōshima () by United States Navy aircraft from Task Force 58.
Concordia	Norway	World War II: The cargo ship was bombed and sunk in Sognefjord by de Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force. Later raised, repaired and returned to service.
USS Dickerson	United States Navy	World War II: The high-speed transport, a former Wickes-class destroyer, was damaged in the Pacific Ocean off Okinawa, Japan by a kamikaze attack with the loss of 54 of her 101 crew. The ship was scuttled off Kerama Retto on 4 April.
Edogawa Maru	Japan	World War II: Convoy TAMO-51: The cargo ship was torpedoed and sunk in the Yellow Sea () by USS Sea Devil (United States Navy). Lost with all 48 crew.
Nisshin Maru	Japan	World War II: Convoy TAMO-51: The cargo ship was torpedoed and sunk in the Yellow Sea () by USS Sea Devil (United States Navy). Thirty-nine crew and nine gunners were killed.
R-256	Kriegsmarine	World War II: The Type R-218 minesweeper sank off Bornholm, Denmark after being damaged during an air attack.
T-17	Imperial Japanese Navy	World War II: The No.1-class landing ship was sunk in the East China Sea south west of Amami Ōshima () by United States Navy aircraft from Task Force 58.
T-145	Imperial Japanese Navy	World War II: The No.101-class landing ship was sunk in the East China Sea south west of Amami Ōshima () by United States Navy aircraft from Task Force 58.
Taijo Maru	Japan	World War II: Convoy TAMO-51: The cargo ship was torpedoed and sunk in the Yellow Sea () by USS Sea Devil (United States Navy). Thirty-nine crew and nine gunners were killed.
Tama Maru	Imperial Japanese Navy	World War II: The auxiliary submarine chaser was torpedoed and sunk in the Yellow Sea by USS Sea Devil (United States Navy).
U-321	Kriegsmarine	World War II: The Type VIIC/41 submarine was depth charged and sunk in the Atlantic Ocean south west of Ireland by a Vickers Wellington aircraft of 304 Squadron, Royal Air Force with the loss of all 41 crew.
William Blumer	Norway	World War II: The cargo ship was bombed and sunk in Sognefjord by de Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force. She was raised on 12 October 1946, repaired and returned to service in April 1948 as William.

3 April

List of shipwrecks: 3 April 1945

Ship	Country	Description
BK-244	Soviet Navy	World War II: The Project 1125 class armored motor gunboat was sunk on this date.
Brummer	Kriegsmarine	World War II: The minelayer was wrecked in a Royal Air Force air raid on Kiel, Schleswig-Holstein.
Heikai Maru	Imperial Japanese Navy	World War II: The transport was bombed and sunk at Hong Kong () by United States Far East Air Force Consolidated B-24 Liberator aircraft. A crewman was killed.
Irben	Kriegsmarine	World War II: The Lauting class mine transport was sunk at Kiel by Allied aircraft.
Manju	Imperial Japanese Navy	World War II: The frigate was destroyed in an American air raid on Hong Kong.
Shozan Maru	Imperial Japanese Navy	World War II: The transport was bombed and sunk at Hong Kong () by Far East Air Force Consolidated B-24 Liberator aircraft. eight crewmen were killed.
U-1221	Kriegsmarine	World War II: The Type IXC/40 submarine was bombed and sunk at Kiel in an American air raid with the loss of seven of the eighteen crew on board at the time.
U-2542	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Kiel in an American air raid. The wreck was scrapped post-war.
U-3505	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Kiel in an American air raid with the loss of a crew member. The wreck was scrapped post-war.
USS YMS-71	United States Navy	The minesweeper was sunk by a mine in the Celebes Sea off Sanga Sanga, Philippine Islands().
USS S-16	United States Navy	The decommissioned S-class submarine was sunk as a target off Key West, Florida.

4 April

List of shipwrecks: 4 April 1945

Ship	Country	Description
Axenfels	Germany	World War II: The cargo ship was bombed and sunk by American aircraft at Kiel, Schleswig-Holstein. Wreck scrapped in March 1948 at Blyth, Northumberland, United Kingdom.
USS Dickerson	United States Navy	The badly damaged Wickes-class high-speed transport was scuttled in the Pacific Ocean near Kerama Retto.
Feodosia	Germany	World War II: The cargo ship was bombed and sunk by aircraft in the Kattegat.
Irben	Kriegsmarine	World War II: The Irben-class minelayer was sunk off Kiel by American aircraft.
Kurt Ramien	Kriegsmarine	World War II: The Este class Naval Trawler/submarine chaser that was completed as a Trails Ship was sunk on this date.
USS LCI(G)-82	United States Navy	World War II: The Landing Craft, Infantry (Gun) was sunk off Buckner Bay, Okinawa by Japanese Assault Demolition Boats.
USS LSM-12	United States Navy	The Landing Ship, Medium was wrecked and abandoned at Okinawa. Subsequently stripped for parts.
USS LST-675	United States Navy	The Landing Ship, Tank was wrecked and abandoned at Okinawa. Subsequently stripped for parts.
M-802	Kriegsmarine	World War II: The M 1943 class minesweeper was bombed and sunk by American aircraft at Kiel.
Mexphalte	Germany	World War II: The tanker was sunk in an American air raid on Kiel.
Mokuto	Imperial Japanese Navy	World War II: The Ukuru-class escort ship was mined and sunk in the Shimonoseki Strait (). Twenty-seven crewmen were killed.
Monte Olivia	Germany	World War II: The hospital ship was bombed and sunk at Kiel by American aircraft.
New York	Germany	World War II: The ocean liner was bombed and sunk at Kiel by American aircraft. Wreck scrapped from 2 August 1949 at Dalmuir, Scotland, and from January 1950 at Troon, Scotland.
R-59	Kriegsmarine	World War II: The Type R-41 minesweeper was sunk at Kiel by American aircraft.
R 119	Kriegsmarine	World War II: The minesweeper was sunk in an American air raid on Kiel.
R-261	Kriegsmarine	World War II: The Type R-218 minesweeper was sunk at Kiel by American aircraft.
U-237	Kriegsmarine	World War II: The Type VIIC submarine was bombed and sunk at Kiel in an American air raid with the loss of a crew member.
U-749	Kriegsmarine	World War II: The Type VIIC submarine was bombed and sunk at Kiel in an American air raid with the loss of two crew.
U-3003	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Kiel in an American air raid. The wreck was scrapped post-war.

5 April

List of shipwrecks: 5 April 1945

Ship	Country	Description
BK-161 Rechnik Kubani	Soviet Navy	World War II: The Project 1124/No 41 class armored motor gunboat was lost on this date.
Gasray	United Kingdom	World War II: The cargo ship was torpedoed and sunk in the North Sea 2 nautical miles (3.7 km) north of St Abb's Head, Berwickshire by U-2321 (Kriegsmarine) with the loss of eight of her 24 crew. Survivors were rescued by the Clova (United Kingdom) and the St Abb's lifeboat () Royal National Lifeboat Institution.
Helmi Söhle	Kriegsmarine	World War II: the patrol boat was sunk in the Kattegat by de Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force.
Kamoi	Japan	World War II: The oiler was bombed and damaged by United States Far East Air Force Consolidated B-24 Liberator aircraft at Hong Kong. She sunk on 8 April in very shallow waters. The crew abandoned her on 13 April.
Kine Maru	Imperial Japanese Navy	World War II: The cargo ship was bombed and sunk by Martin PBM Mariner aircraft of the United States Navy (). Fifty-six passengers, five gunners and nineteen crew members were lost.
Ro-49	Imperial Japanese Navy	World War II: The Kaichū type submarine was depth charged and sunk in the Pacific Ocean off Okinawa by USS Hudson (United States Navy).
Stutthof	Germany	World War II: The fishing trawler was sunk in the Kattegat by de Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force.
USS Thornton	United States Navy	The seaplane tender, a former Clemson-class destroyer, collided with USS Ashtabula and USS Escalante in the Pacific Ocean off the Ryukyu Islands and was severely damaged. She was beached and abandoned at Keramo Retto on 2 May.
Tokai Maru No. 2	Japan	World War II: The cargo ship was bombed and sunk by Consolidated B-24 Liberator, Martin B-26 Marauder and Lockheed P-38 Lightning aircraft of the United States Fifth Air Force (). Sixteen gunners and thirteen crew members were lost.
Torridal	Norway	World War II: The cargo ship was torpedoed and sunk at Folda, Nord-Trøndelag by Utsira (Royal Norwegian Navy) with the loss of fifteen of her eighteen crew.
U-242	Kriegsmarine	World War II: The Type VIIC submarine struck a mine and sank in St George's Channel () with the loss of all 44 crew.
USS S-17	United States Navy	The decommissioned S-class submarine was sunk as a target.

6 April

List of shipwrecks: 6 April 1945

Ship	Country	Description
Amatsukaze	Imperial Japanese Navy	World War II: The Kagero-class destroyer was bombed and damaged in the Strait of Formosa 6 nautical miles (11 km) east of Amoy, China () by North American B-25 Mitchell aircraft of the United States Army Air Force. She was beached at the entrance to Amoy harbor, but salvage was abandoned two days later after further damage by a storm, and she was scuttled on 10 April. Forty-four crewmen were killed.
Araosan Maru	Japan	World War II: Convoy SASI-45: The cargo ship was torpedoed and sunk in the Strait of Formosa by USS Hardhead (United States Navy).
USS Bush	United States Navy	World War II: The Fletcher-class destroyer was sunk in the Pacific Ocean off Okinawa, Japan () by a Japanese kamikaze attack with the loss of 87 of her 314 crew.
CD-1	Imperial Japanese Navy	World War II: Convoy HOMO-03: The Type C escort ship was sunk in Fotou Bay, China south west of Amoy () by North American B-25 Mitchell aircraft of the 345th Bomb Group, United States Army Air Force.
CD-134	Imperial Japanese Navy	World War II: Convoy HOMO-03: The Type D escort ship was sunk in Fotou Bay south west of Amoy () by North American B-25 Mitchell aircraft of the 345th Bomb Group, United States Army Air Force.
Captain Nathaniel B. Palmer	United States	World War II: The fishing vessel was sunk 9 nautical miles (17 km) south south east of Block Island when a depth charge caught in her net exploded. Three crewmen were killed. The only survivor was rescued by Mandalay (United States).
USS Colhoun	United States Navy	World War II: The Fletcher-class destroyer was sunk in the Pacific Ocean off Okinawa () when hit by four Japanese kamikaze aircraft. Thirty-five crewmen were killed.
Cuba	United Kingdom	World War II: Convoy VWP-16: The troopship was torpedoed and sunk in the English Channel south east of the Isle of Wight () by U-1195 (Kriegsmarine) with the loss of one of the 265 people on board. Survivors were rescued by HMCS Nene (Royal Canadian Navy).
USS Defense (AM-31)	United States Navy	World War II: The Auk-class minesweeper was damaged off Okinawa by a Japanese kamikaze attack. Repairs took until 3 September to complete.
USS Emmons	United States Navy	World War II: The high-speed minesweeper, a former Gleaves-class destroyer, was damaged in a Japanese kamikaze attack in the Pacific Ocean off Okinawa () with the loss of 60 of her 208 crew. She was scuttled the next day.
Hobbs Victory	United States	World War II: The Victory ship was damaged in a Japanese kamikaze attack at Okinawa (). She exploded and sank the next day. Survivors were rescued by USS Serene and USS Success (both United States Navy).
USS LST-447	United States Navy	World War II: The landing ship, tank Mk.2 was damaged at Kerama Retto, Japan () in a kamikaze attack. She sank the next day.
USS Leutze	United States Navy	World War II: The Fletcher-class destroyer was damaged in a Japanese kamikaze attack. She was consequently declared a constructive total loss.
Logan Victory	United States	World War II: The Victory ship was sunk by a kamikaze attack.
Marco Brunner	Germany	World War II: The troopship was sunk off Väderöarna, Sweden, with the loss of around 700 from the 1,200 people on board.
USS Morris	United States Navy	World War II: The Sims-class destroyer was damaged by a Japanese Nakajima B5N kamikaze aircraft. She was subsequently declared a constructive total loss.
USS Mullany	United States Navy	World War II: The Fletcher-class destroyer was damaged in a Japanese kamikaze attack with the loss of nine of her crew. She was consequently abandoned due to an onboard fire and fears that her magazines would explode. A skeleton crew later reboarded her and she was taken in to Pearl Harbor, Hawaii. Subsequently repaired and returned to service.
USS Newcomb	United States Navy	World War II: The Fletcher-class destroyer was damaged in a Japanese kamikaze attack. She was consequently declared a constructive total loss.
USS Rodman	United States Navy	World War II: The Gleaves-class destroyer) was damaged off Okinawa by Japanese kamikaze attacks. She was out of service until 22 October for repairs.
W-12	Imperial Japanese Navy	World War II: The No.7-class minesweeper was torpedoed and damaged off Komodo Island and beached (), torpedoed again and sunk by USS Besugo (United States Navy).
USS Witter	United States Navy	World War II: The Buckley-class destroyer escort was severely damaged in a kamikaze attack south east of Okinawa with the loss of six of her crew. She was not repaired.

7 April

List of shipwrecks: 7 April 1945

Ship	Country	Description
Asashimo	Imperial Japanese Navy	World War II: Operation Ten-Go: The Yūgumo-class destroyer was torpedoed and sunk in the Pacific Ocean 150 nautical miles (280 km) south west of Nagasaki approximately by aircraft based on USS San Jacinto (United States Navy) with the loss of all 328 crew.
Flensburg	Germany	World War II: The incomplete cargo ship was bombed and sunk at Pillau, East Prussia.
Hamakaze	Imperial Japanese Navy	World War II: Operation Ten-Go: The Kagero-class destroyer was torpedoed and sunk in the Pacific Ocean 150 nautical miles (280 km) south west of Nagasaki () by aircraft based on USS San Jacinto (United States Navy).
Isokaze	Imperial Japanese Navy	World War II: The Kagero-class destroyer was damaged in the Pacific Ocean by aircraft of Task Force 58, United States Navy. She was scuttled with the loss of twenty of her 239 crew.
Isuzu	Imperial Japanese Navy	World War II: The Nagara-class cruiser was torpedoed and damaged in the Java Sea 80 nautical miles (150 km) north west of Bima, Dutch East Indies by USS Gabilan (United States Navy). She was then torpedoed and sunk by USS Charr (United States Navy) at . One hundred and ninety crewmen were killed. Four hundred and thirty-seven crewmen and her captain were rescued by Kari, and thirteen by W-34 (both Imperial Japanese Navy).
James W. Nesmith	United States	World War II: Convoy HX 346: The Liberty ship was torpedoed and damaged in the Irish Sea () by U-1024 (Kriegsmarine). All 82 people on board survived. She was beached at Holyhead, Anglesey, United Kingdom but was declared a constructive total loss. Post war scuttled in the North Sea off Wilhelmshaven, Lower Saxony, Germany with a load of chemical weapons.
Kasumi	Imperial Japanese Navy	World War II: Operation Ten-Go: The Yūgumo-class destroyer was bombed and damaged in the Pacific Ocean 150 nautical miles (280 km) south west of Nagasaki (approximately ) by United States Navy aircraft. Scuttled by Fuyuzuki (Imperial Japanese Navy) with the loss of seventeen crewmen killed and 47 wounded.
HMMTB 494	Royal Navy	World War II: The BPB 72'-class motor torpedo boat was rammed and sunk in the North Sea by S 176 (Kriegsmarine).
HMMTB 5001	Royal Navy	World War II: The Fairmile D (modified) motor torpedo boat was sunk in the North Sea by gunfire by a Kriegsmarine Schnellboot. or was rammed and sunk by S 177 (Kriegsmarine).
Oldenburg	Germany	World War II: The cargo ship was sunk off Vadheim, Sogn og Fjordane Norway by Allied aircraft.
PGM-18	United States Navy	World War II: The PGM-9-class gunboat was mined in Buckner Bay, Okinawa and sank with a loss of thirteen of her crew.
S-176 and S-177	Kriegsmarine	World War II: The Type 1939/40 Schnellboots were sunk by HMS MTB 494, HMS MTB 493, and HMS MTB 497 (all Royal Navy), or were sunk due to damage sustained by ramming HMMTB 494 and HMMTB 5001 respectively.
U-1195	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the English Channel south east of the Isle of Wight () by HMS Watchman (Royal Navy) with the loss of all 50 crew.
USS YMS-103	United States Navy	The minesweeper was damaged by a mine off Okinawa (). Beached and abandoned the next day.
Yahagi	Imperial Japanese Navy	World War II: Operation Ten-Go: The Agano-class cruiser was bombed, torpedoed and sunk in the Pacific Ocean south of Kyushu, Japan by United States Navy aircraft.
Yamato	Imperial Japanese Navy	World War II: Operation Ten-Go: The Yamato-class battleship was bombed, torpedoed and sunk in the Pacific Ocean south of Kyushu by United States Navy aircraft with the loss of 2,055 of her 2,332 crew.

8 April

List of shipwrecks: 8 April 1945

Ship	Country	Description
Albert	Germany	World War II: The cargo ship was bombed and wrecked by aircraft at Hamburg, Germany. Wreck scrapped in January 1950.
Boelcke	Luftwaffe	World War II: The Karl Meyer-class seaplane tender was sunk by Soviet aircraft off Hela, Danzig-West Prussia.
Franken	Kriegsmarine	World War II: The auxiliary ship was bombed and sunk by Soviet bombers off Hela.
Hans Albrecht Wedel	Luftwaffe	World War II: The Hans Albrecht Wedel-class seaplane tender was sunk by Soviet aircraft.
Ritsu Go	Japan	World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Spadefish (United States Navy).
S-202 and S-703	Kriegsmarine	World War II: The Type 1939/40 Schnellboots sank each other in a collision in the North Sea whilst engaging Royal Navy Motor Torpedo Boats.
S-223	Kriegsmarine	World War II: The Type 1939/40 Schnellboot was sunk at Hoofden by a mine.
U-774	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean north west of Ireland () by HMS Bentinck and HMS Calder (both Royal Navy) with the loss of all 44 crew.
U-1001	Kriegsmarine	World War II: The Type VIIC/41 submarine was depth charged and sunk in the Atlantic Ocean south west of Land's End, Cornwall, United Kingdom () by HMS Byron and HMS Fitzroy (both Royal Navy) with the loss of all 46 crew.
UJ 301	Kriegsmarine	World War II: The submarine chaser was bombed and set afire in a Soviet air raid on Hela. She was towed out of the port and scuttled by R 71 (Kriegsmarine).
Wilhelm Bauer	Kriegsmarine	World War II: The submarine tender was bombed and sunk by Allied aircraft.

9 April

List of shipwrecks: 9 April 1945

Ship	Country	Description
Admiral Scheer	Kriegsmarine	World War II: The Deutschland-class cruiser was sunk in a Royal Air Force air raid on Kiel, Schleswig-Holstein.
Albert Jensen	Kriegsmarine	World War II: The cargo ship was bombed and sunk in the Baltic Sea off Hela, Danzig-West Prussia by Soviet aircraft.
Carsten Russ	Germany	World War II: The cargo ship was bombed and sunk in the Skagerrak by British aircraft.
Charles Henderson	United States	The Liberty ship exploded and sank at Bari, Apulia, Italy when her cargo of 2,000 tons of bombs detonated. There were 360 killed and 1,730 wounded in the port.
F 165A	Kriegsmarine	World War II: The MFP-A landing craft, was sunk on this date.
Florida	Kriegsmarine	World War II: The target ship was bombed and sunk in the Baltic Sea () by Soviet Aircraft with the loss of four lives. The wreck was raised in 1952.
M-19	Kriegsmarine	World War II: The M-class minesweeper was bombed off Kiel and was beached.
Lucia C.	Italy	The cargo ship sank at Bari due to damage sustained from the explosion of Charles Henderson (United States).
Nikko Maru	Japan	World War II: The cargo ship was torpedoed and sunk in the Yellow Sea north-east of Tsingtao, China (), by USS Tirante (United States Navy). A total of 563 passengers, fourteen gunners, sixteen guard force soldiers, two Signallers, and 73 crewmen were killed.
Ro-56	Imperial Japanese Navy	World War II: The Kaichū VI type submarine was depth charged and sunk off Okinodaito-Jima, Ryukyu (), by USS Mertz and USS Monssen both (United States Navy). Lost with all 79 hands.
Rosnaes	Denmark	World War II: The cargo ship was seized by the Danish Resistance off Copenhagen and ran aground on Ven, Sweden. She was refloated and taken to Landskrona. Nineteen other Danish vessels were also seized and taken to Sweden to prevent their capture by German forces.
Samida	United Kingdom	World War II: Convoy TBC 123: The Liberty ship was torpedoed and sunk in the English Channel off Dungeness, Kent by U-5363 (Kriegsmarine).
St. Mihiel	United States	World War II: Convoy CU 65: The cargo ship collided with Nashbulk (United States) in the Atlantic Ocean, caught fire and was abandoned.
U-677	Kriegsmarine	World War II: The Type VIIC submarine was destroyed at Hamburg in a British air raid.
U-747	Kriegsmarine	World War II: The Type VIIC submarine was badly damaged by bombs at Hamburg in an American air raid. She was scuttled on 3 May 1945.
U-804	Kriegsmarine	World War II: The Type IXC/40 submarine was sunk in the Kattegat off Gothenburg, Sweden () by de Havilland Mosquito aircraft of 143 Squadron and 235 Squadron, Royal Air Force with the loss of all 55 crew.
U-843	Kriegsmarine	World War II: The Type IXC/40 submarine was sunk in the Kattegat west of Gothenburg () by a rocket attack by de Havilland Mosquito aircraft of 235 Squadron, Royal Air Force with the loss of 44 of her 56 crew.
U-982	Kriegsmarine	World War II: The Type VIIC submarine was bombed and destroyed at Hamburg in a Royal Air Force air raid.
U-1065	Kriegsmarine	World War II: The Type VIIC/41 submarine was sunk in the Skaggerak ( by a rocket attack by de Havilland Mosquito aircraft of 143 and 235 Squadrons, Royal Air Force with the loss of all 45 crew.
U-2509	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Hamburg in a Royal Air Force air raid.
U-2514	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Hamburg in a Royal Air Force air raid.
U-2516	Kriegsmarine	World War II: The Type XXI submarine was sunk at Kiel in a British air raid. The wreck was scrapped post-war.
U-2550	Germany	World War II: The submarine was destroyed in a British air raid on Hamburg.
U-3512	Kriegsmarine	World War II: The Type XXI submarine was bombed and sunk at Kiel in a British air raid.
UJ 1101 Alemania	Kriegsmarine	World War II: The submarine chaser was sunk in a Soviet air raid on Hela.
Vale	Germany	World War II: The cargo ship was sunk in the Baltic Sea by Soviet aircraft.
W-3	Imperial Japanese Navy	World War II: The No.1-class minesweeper was torpedoed and sunk off Ofunato (), by USS Parche (United States Navy).
USAT Y-17	United States Army	World War II: Convoy TAC 90: The tanker was sunk in the Scheldt by a Kriegsmarine Seehund midget submarine.

10 April

List of shipwrecks: 10 April 1945

Ship	Country	Description
CHa-199	Imperial Japanese Navy	The CHa-1 class auxiliary submarine chaser was sunk off Matsure Light by mines.
General Osorio	Germany	World War II: The accommodation ship was sunk at Kiel, Schleswig-Holstein in a British air raid.
Hansa I	Germany	World War II: The cargo ship was bombed and sunk off Gothenburg, Sweden by British aircraft.
Ilmenau	Germany	World War II: The cargo ship was torpedoed and sunk in the Baltic Sea west of Liepāja, Latvia by Shch-310 (Soviet Navy).
MTB 710	Royal Navy	World War II: The Fairmile D motor torpedo boat was sunk by a mine off Zara, Italy.
Hosei Maru	Japan	World War II: The oiler was torpedoed and sunk in the Sunda Strait () by HNLMS O 19 (Royal Netherlands Navy).
HMML 102	Royal Navy	World War II: The motor launch was torpedoed and sunk in the English Channel off Dover, Kent by a Kriegsmarine midget submarine.
M 504	Kriegsmarine	World War II: The minesweeper was sunk at Kiel in a British air raid.
Neuwerk	Germany	World War II: The refugee ship was torpedoed and sunk off the Hel Peninsula, Danzig-West Prussia by S 708 (Kriegsmarine) with the loss of about 960 lives. There were eight survivors.
R-69	Kriegsmarine	World War II: The Type R-41 minesweeper was sunk off Hel, Danzig-West Prussia by Soviet aircraft.
T-1	Kriegsmarine	World War II: The Type 35 torpedo boat was bombed and sunk by aircraft while docked at the Deutsche Werke yard in Kiel.
T-13	Kriegsmarine	World War II: The Type 37 torpedo boat was bombed and sunk by aircraft in the Kattegat.
U-878	Kriegsmarine	World War II: The Type IXC/40 submarine was depth charged and sunk in the Bay of Biscay west of Saint-Nazaire, Loire-Atlantique, France () by HMS Tintagel Castle and HMS Vanquisher (both Royal Navy) with the loss of all 51 crew.
Weser	Kriegsmarine	World War II: The incomplete auxiliary aircraft carrier, a former Admiral Hipper-class cruiser, was scuttled at Kiel.

11 April

List of shipwrecks: 11 April 1945

Ship	Country	Description
Agata Maru	Imperial Japanese Navy	World War II: The auxiliary netlayer was sunk in the Andaman Sea east of Car Nicobar() by Consolidated B-24 Liberator aircraft of 203 Squadron, Royal Air Force.
CH-7	Imperial Japanese Navy	World War II: The No.4-class submarine chaser was sunk in the Andaman Sea east of Car Nicobar () by Consolidated B-24 Liberator aircraft of 203 Squadron, Royal Air Force.
Hinode Maru No. 17	Imperial Japanese Navy	World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Spadefish (United States Navy).
M-376	Kriegsmarine	The M 1940-class minesweeper was sunk off Hel, Danzig-West Prussia by Soviet aircraft.
Moltkefels	Germany	World War II: The cargo ship was bombed by Soviet aircraft off Hel and was beached.
M 2	Kriegsmarine	World War II: The minesweeper was sunk in Fedefjord by aircraft of Coastal Command, Royal Air Force.
HMMTB 632	Royal Navy	World War II: The motor torpedo boat was torpedoed and sunk in the English Channel east of Dungeness, Kent by a Kriegsmarine Seehund midget submarine.
Panama	United Kingdom	The cargo ship capsized and sank in the Atlantic Ocean ( with the loss of 45 of her 50 crew.
Port Wyndham	Nazi Germany	World War II: Convoy UC 63B: The cargo ship was torpedoed and sunk in the English Channel east of Dungeness by U-5070 (Kriegsmarine).
Posen	Kriegsmarine	World War II: The hospital ship was bombed and sunk by aircraft off Hela
Ramona	Sweden	World War II: The fishing lugger was shelled and sunk in the Baltic Sea south of the Utklippan Lighthouse by K-56 (Soviet Navy).
Togo Maru	Imperial Japanese Navy	World War II: The auxiliary minesweeper was torpedoed and sunk in the Pacific Ocean off the Japanese coast by USS Parche (United States Navy).
TS-10	Kriegsmarine	World War II: The minesweeper was bombed and sunk by aircraft off Hela.
UJ 1102	Kriegsmarine	World War II: The submarine chaser was bombed and sunk off Hela by Soviet aircraft.

12 April

For the severe damage to Sperrbrecher 185 Hans Burg on this date, see the entry for 6 September 1944.

List of shipwrecks: 12 April 1945

Ship	Country	Description
Dione	Norway	World War II: De Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force bombed and sank the cargo ship at Porsgrunn, Telemark. Raised post-war, repaired and returned to service in April 1946.
F 961D	Kriegsmarine	World War II: The MFP-D landing craft was sunk on this date.
Kalmar	Germany	World War II: De Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force bombed and sank the cargo ship at Porsgrunn.
USS LCS(L)-33	United States Navy	World War II: Japanese Kamikazes sank the Landing Craft Support off Okinawa.
USS LCT-66	United States Navy	The Landing Craft, Tank was lost at Pearl Harbor, Hawaii.
USS Lindsey	United States Navy	File:USS Lindsey (MMD-32).jpg USS Lindsey. World War II: The Sumner-class destroyer was severely damaged off Okinawa by a kamikaze attack with the loss of 57 of her crew. Repairs took until 6 March 1946 to complete.
USS LST-493	United States Navy	The Landing Ship, Tank ran aground and sank off Plymouth, Devon, United Kingdom ().
USS Mannert L. Abele	United States Navy	World War II: A Japanese kamikaze attack using an Aichi D3A or Yokosuka MXY7 Ohka aircraft sank the Allen M. Sumner-class destroyer in the Pacific Ocean 70 nautical miles (130 km) north west of Okinawa (). USS LSM(R)-189 and USS LSM(R)-190 (both United States Navy), rescued the survivors.
Nordsjø	Norway	World War II: De Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force bombed and sank the coaster at Porgsrunn. Raised post-war, repaired and returned to service.
Ro-64	Imperial Japanese Navy	World War II: A mine sank the Japanese Type L submarine in Hiroshima Bay, Japan while she was on a training mission. Eighty people were killed.
Shiratori Maru	Imperial Japanese Navy	World War II: The auxiliary submarine chaser was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Silversides (United States Navy).
Traust	Norway	World War II: De Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force bombed and sank the coaster at Porgsrunn. Raised post-war, repaired and returned to service.
U-486	Kriegsmarine	World War II: The Type VIIC submarine was torpedoed and sunk in the North Sea north west of Bergen, Hordaland, Norway () by HMS Tapir (Royal Navy) with the loss of all 48 crew.
U-1024	Kriegsmarine	World War II: The Type VIIC/41 submarine was damaged in the Irish Sea south of the Isle of Man ( by a Squid attack by HMS Loch Glendhu and HMS Loch More (both Royal Navy) with the loss of nine of her 46 crew. HMS Loch More took U-1024 in tow but she foundered the next day.
Wa-104	Imperial Japanese Navy	World War II: The Wa-101 class auxiliary minesweeper was sunk south west of Bali, Netherlands East Indies by HMS Stygian (Royal Navy).
Weserstein	Germany	World War II: Soviet aircraft bombed and sank the cargo ship off Pillau, East Prussia.
Will Rogers	United States	World War II: Convoy BB 80: U-1024 (Kriegsmarine) torpedoed the Liberty ship in the Irish Sea south west of Holyhead, Anglesey, United Kingdom (). Her crew beached their damaged ship at Holyhead. Later repaired and returned to service on 1 December 1945.
USS Zellars	United States Navy	World War II: The Allen M. Sumner-class destroyer was severely damaged off Okinawa, Japan by a kamikaze attack. She was out of action for the rest of the war.

13 April

List of shipwrecks: 13 April 1945

Ship	Country	Description
Karlsruhe	Germany	World War II: The cargo ship was bombed and sunk by Soviet aircraft off the Hel Peninsula, Poland.
Kosho Maru No. 2	Imperial Japanese Navy	World War II: The auxiliary guardboat was torpedoed and sunk in the Pacific Ocean by USS Parche (United States Navy).
Misago Maru No. 1	Imperial Japanese Navy	World War II: The auxiliary minesweeper was torpedoed and sunk in the Pacific Ocean off the Japanese coast by USS Parche (United States Navy).
T-16	Kriegsmarine	World War II: The Type 37 torpedo boat was bombed and sunk by Allied aircraft at Fredrikshavn, Denmark.
TA-45	Kriegsmarine	World War II: The Ariete-class torpedo boat was sunk in the Adriatic Sea by HMMTB 670 and HMMTB 697 (both Royal Navy).

14 April

List of shipwrecks: 14 April 1945

Ship	Country	Description
Belgian Airman	Belgium	World War II: The cargo ship was torpedoed and sunk off Chesapeake Bay, Maryland, United States () by U-857 (Kriegsmarine) with the loss of one of her 47 crew. Survivors were rescued by Harold A. Jordan (United States).
CD-31	Imperial Japanese Navy	World War II: The Type C escort ship was torpedoed and sunk in Hiyo Inlet, Saishu Island (), by USS Tirante (United States Navy). Sank in shallow water and only partially submerged. Thirty-nine crewmen were killed.
Goenoeng Telang	Japan	World War II: The fishing vessel was shelled and sunk in the Indian Ocean by HNLMS O 24 (Royal Netherlands Navy).
Jusan Maru	Japan	World War II: Convoy MOSI-02: The cargo ship was torpedoed and sunk in Hiyo Inlet, Saishu Island (), by USS Tirante (United States Navy). Thirty-three crewmen were killed.
Kako Maru	Japan	World War II: The coaster was torpedoed and sunk in the Java Sea by USS Gabilan (United States Navy).
Nomi	Imperial Japanese Navy	World War II: The Mikura-class escort ship was torpedoed and sunk in Hiyo Inlet, Saishu Island (), by USS Tirante (United States Navy). Sank in shallow water and only partially submerged. One hundred and thirty-four crewmen were killed including her captain.
R-126	Kriegsmarine	World War II: The Type R-41 minesweeper was sunk in The Great Belt by mines.
Shonan Maru No. 1	Japan	World War II: The coaster was torpedoed and sunk in the Java Sea by USS Gabilan (United States Navy).
Sigsbee	United States Navy	World War II: The Fletcher-class destroyer was severely damaged off Okinawa, Japan by a kamikaze attack. Repairs took until 28 September to complete.
TK-184 Morshanskiy Zheleznodorozhnik	Soviet Navy	World War II: The D-3 class motor torpedo boat was lost on this date.
U-235	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Kattegat ( by T17 (Kriegsmarine) with the loss of all 47 crew.
U-1206	Kriegsmarine	The Type VIIC submarine was lost in the North Sea () in a diving accident with the loss of four of her 50 crew.

15 April

List of shipwrecks: 15 April 1945

Ship	Country	Description
CHa-151	Imperial Japanese Navy	The CHa-1 class auxiliary submarine chaser was wrecked in the Pescadore Islands.
HMS Ekins	Royal Navy	World War II: The Captain-class frigate was severely damaged by a mine in the North Sea. Declared a constructive total loss.
F 569C2M	Kriegsmarine	World War II: The MFP-C2M landing craft was sunk on this date.
USS Laffey	United States Navy	World War II: The Allen M. Sumner-class destroyer was severely damaged off Okinawa, Japan by a kamikaze attack with the loss of 32 of her crew. Repairs took until 6 September to complete.
M-368	Kriegsmarine	The M 1940-class minesweeper was sunk in a collision with a U-boat off Southern Norway.
Shincho Maru	Japan	World War II: The hulk of the Standard 1TM Tanker was raised and resunk at the entrance to Takao Harbour, Formosa.
U-103	Kriegsmarine	World War II: The decommissioned Type IXB submarine was bombed and sunk at Kiel, Schleswig-Holstein in an air raid with the loss of one life.
U-285	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Ireland () by HMS Grindall and HMS Keats (both Royal Navy) with the loss of all 44 crew.
U-1063	Kriegsmarine	World War II: The Type VIIC/41 submarine was depth charged and sunk in the Atlantic Ocean off Land's End, Cornwall, United Kingdom () by HMS Loch Killin (Royal Navy) with the loss of 29 of her 46 crew.
U-1235	Kriegsmarine	World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean by USS Frost and USS Stanton (both United States Navy) with the loss of all 57 crew.
Vs-58	Kriegsmarine	The Vorpostenboot struck a mine and sank in the Baltic Sea north-east of Kiel, Schleswig-Holstein ().

16 April

List of shipwrecks: 16 April 1945

Ship	Country	Description
Athelduke	United Kingdom	World War II: Convoy FS 1784: The tanker was torpedoed and sunk in the North Sea by U-1274 (Kriegsmarine).
USS Bryant	United States Navy	World War II: The Fletcher-class destroyer was severely damaged off Okinawa, Japan by a kamikaze attack with the loss of 34 of her crew. She was out of action for the rest of the war.
CD-73	Imperial Japanese Navy	World War II: The Type C escort ship was torpedoed and sunk in the Pacific Ocean off Japan () by USS Sunfish (United States Navy).
Cap Guir	Germany	World War II: The cargo ship was sunk by a Soviet air-dropped torpedo off Öland, Sweden with the loss of 756 lives.
HMCS Esquimalt	Royal Canadian Navy	World War II: The Bangor-class minesweeper was torpedoed and sunk in the Atlantic Ocean off Chebucto Head, Nova Scotia by U-190 (Kriegsmarine with the loss of 44 of her 71 crew. She was the last Canadian warship sunk during the war.
Goya	Kriegsmarine	World War II: Evacuation of East Prussia: The transport ship was torpedoed and damaged in the Baltic Sea north of Hela Danzig-West Prussia by L-3 (Soviet Navy). She broke in two and sank the next day with the loss of between 6,220 and 7,028 lives. There were between 165 and 334 survivors.
USS Harding	United States Navy	World War II: The Gleaves-class destroyer was severely damaged off Okinawa by a Kamikaze attack with the loss of 22 of her crew. She was not permanently repaired.
Lützow	Kriegsmarine	File:German cruiser Lützow in Kaiserfahrt canal on 25 April 1945.jpg Lutzow on the bottom in shallow water in the Kaiserfahrt on 26 April 1945. World War II: The Deutschland-class cruiser was bombed and sunk in shallow water in the Kaiserfahrt by Royal Air Force aircraft with her main deck above water, her antiaircraft guns remaining in action until they ran out of ammunition on 4 May. She later was raised by the Soviet Union and sunk in weapons testing in July 1947.
Gold Shell	United Kingdom	World War II: The tanker was sunk in the North Sea by a Kriegsmarine Seehund midget submarine.
Manryu Maru	Japan	World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Japan () by USS Sunfish (United States Navy).
Monarch	United Kingdom	World War II: The cable ship was torpedoed and sunk in the North Sea off Orfordness, Suffolk by a Kriegsmarine Seehund midget submarine.
PiLB 554	Kriegsmarine	World War II: The PiLB 41 type landing craft was sunk in the Baltic Sea, either by mines or by Soviet MTBs.
USS Pringle	United States Navy	World War II: The Fletcher-class destroyer was sunk in the Pacific Ocean off Okinawa, Japan by a kamikaze aircraft attack with the loss of 78 of her 336 crew.
R-15	Kriegsmarine	World War II: The Type R-2 minesweeper was sunk in the Adriatic Sea by Royal Navy Motor Torpedo Boats.
Toko Maru	Japan	World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean south of Honshu bu USS Sea Dog (United States Navy).
U-78	Kriegsmarine	World War II: The Type VIIC submarine was shelled and sunk at Pillau, East Prussia by Soviet shore-based artillery.
U-880	Kriegsmarine	World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean () by USS Frost and USS Stanton (both United States Navy) with the loss of all 49 crew.
U-1274	Kriegsmarine	World War II: The Type VIIC/41 submarine was depth charged and sunk in the North Sea north of Newcastle-upon-Tyne, Northumberland, United Kingdom () by HMS Viceroy (Royal Navy) with the loss of all 44 crew.

17 April

List of shipwrecks: 17 April 1945

Ship	Country	Description
Boelke	Luftwaffe	World War II: The Karl Meyer class Seaplane Tender was bombed and sunk off the Hel Peninsula by Soviet bombers.
HMS MTB 697	Royal Navy	World War II: The Fairmile D motor torpedo boat was sunk by a mine in the Adriatic Sea.
Sonjo Maru	Japan	World War II: The cargo ship was sunk by a mine in the Yangtze near where it empties into the East China Sea on "Middle Ground" off Shanghai, China (). Five troops and eighteen crewmen were killed.
V 1207 P. von Rensen	Kriegsmarine	World War II: The Vorpostenboot was sunk in the North Sea off Heligoland by Allied aircraft.

18 April

List of shipwrecks: 18 April 1945

Ship	Country	Description
Cyrus H. McCormick	United States	World War II: Convoy HX 348: The Liberty ship was torpedoed and sunk in the Atlantic Ocean () by U-1107 (Kriegsmarine) with the loss of six of her 53 crew. Survivors were rescued by Gothland (United Kingdom).
Drache	Kriegsmarine	World War II: The artillery training ship was sunk at Fischhausen, Eastern Prussia by Soviet aircraft.
Empire Gold	United Kingdom	World War II: Convoy HX 348: The tanker was torpedoed and sunk in the Atlantic Ocean () by U-1107 (Kriegsmarine) with the loss of 43 of her 47 crew. Survivors were rescued by Gothland (United Kingdom).
Filleigh	United Kingdom	World War II: Convoy TAM 118: The cargo ship was torpedoed and sunk in the English Channel off Dover, Kent by U-245 (Kriegsmarine).
I-56	Imperial Japanese Navy	World War II: The Type B1 submarine was sunk in the Pacific Ocean off Okinawa () by USS Collett, four other destroyers (all United States Navy) and United States Navy carrier-based aircraft.
Karmt	Norway	World War II: Convoy TAM 118: The cargo ship was torpedoed and sunk in the English Channel off Dover () by U-245 (Kriegsmarine with the loss of four of her 39 crew. Survivors were rescued by HMT Sir Lancelot (Royal Navy).
Pollux	Germany	World War II: The cargo ship was bombed and sunk by aircraft at Hamburg, Germany. Raised 1945 and broken up in Wales in 1947.
Robert Müller 6	Germany	World War II: The cargo ship was torpedoed and sunk at Fischhausen by Soviet aircraft.
Swiftscout	United States	World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 145 nautical miles (269 km) north east of Cape Henry, North Carolina () by U-857 or U-879 (both Kriegsmarine) with the loss of one of her 47 crew. Survivors were rescued by Chancellorsville (United States).
Teizui Maru	Japan	World War II: The cargo liner was damaged by a mine at the west entrance of the Shimoneseki Strait off Yawata, Japan () and beached and abandoned.

19 April

List of shipwrecks: 19 April 1945

Ship	Country	Description
Aquila	Kriegsmarine	World War II: The ex-Italian incomplete aircraft carrier was scuttled at Genoa. She was raised in 1946 and scrapped in 1952.
CHa-97	Imperial Japanese Navy	World War II: The CHa-1 class auxiliary submarine chaser was sunk in the Kii Channel () by USS Sennet (United States Navy).
Dammtor	Germany	World War II: The cargo ship was bombed and sunk by aircraft in the Unterelbe.
Hagane Maru	Japan	World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Sennet (United States Navy).
Isuzu Maru No. 3	Imperial Japanese Navy	World War II: The auxiliary guardboat was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Cero (United States Navy).
Kaiho Maru	Imperial Japanese Navy	World War II: Convoy TSO-201: The auxiliary gunboat was torpedoed and sunk in the Pacific Ocean off Hokkaido () by USS Sunfish (United States Navy).
Kairyu Maru	Imperial Japanese Navy	World War II: The auxiliary gunboat was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Silversides (United States Navy).
Kaiyo Maru	Japan	World War II: The coaster was torpedoed and sunk in the Yellow Sea by USS Trutta (United States Navy).
Kinshu Maru	Japan	World War II: The boat was sunk in the Yellow Sea by USS Trutta (United States Navy).
M-403	Kriegsmarine	World War II: The M-class minesweeper was bombed, strafed and sunk in the Kattegat, south-east of Anholt, Denmark by de Havilland Mosquito aircraft of 143, 235, 248 and 333 Squadrons, Royal Air Force.
Mitsuyama Maru	Japan	World War II: The boat was sunk in the Yellow Sea by USS Trutta (United States Navy).
Nygrunn	Norway	World War II: The coaster either struck a mine, or was torpedoed and sunk in the Skaggerak off Egersund, Rogaland with the loss of seven crew.
Taisei Maru	Japan	World War II: Convoy TSO-201: The cargo ship was torpedoed and sunk in the Pacific Ocean off Hokkaido () by USS Sunfish (United States Navy).
USS Tolman	United States Navy	The Robert H. Smith-class destroyer ran aground on the Nagunna Reef, Japan. She was refloated on 25 April, repaired and returned to service.
U-251	Kriegsmarine	World War II: The Type VIIC submarine was sunk in the Kattegat () by a rocket attack by de Havilland Mosquito aircraft of 143, 235 and 248 Squadrons, Royal Air Force with the loss of 39 of her 43 crew.
U-548	Kriegsmarine	World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean south east of Halifax, Nova Scotia, Canada () by USS Buckley and USS Reuben James (both United States Navy) with the loss of all 58 crew.
U-879	Kriegsmarine	World War II: The Type IX submarine was sunk in the Atlantic Ocean () by USS Buckley and USS Reuben James (both United States Navy).
Westmark	Kriegsmarine	World War II: The minelayer was scuttled at La Spezia, Liguria, Italy.

20 April

List of shipwrecks: 20 April 1945

Ship	Country	Description
Altengamme	Germany	World War II: The cargo ship was sunk in the Baltic Sea off Saßnitz, Mecklenburg-West Pomerania by Soviet aircraft.
Ethel Crawford	United Kingdom	World War II: The trawler struck a mine and sank in the Firth of Clyde () with the loss of all ten crew.
Königsburg	Germany	World War II: The coaster was sunk in the Baltic Sea off Hela, Danzig-West Prussia by Soviet aircraft.
V 215	Kriegsmarine	World War II: The Vorpostenboot was sunk in the Baltic Sea off Hela by Soviet aircraft.

21 April

List of shipwrecks: 21 April 1945

Ship	Country	Description
Ostmark	Kriegsmarine	World War II: The auxiliary minelayer was bombed and sunk by British aircraft west of Anholt, Denmark.
U-636	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean west of Ireland () by HMS Bazely, HMS Bentinck and HMS Drury (all Royal Navy) with the loss of all 42 crew.

22 April

List of shipwrecks: 22 April 1945

Ship	Country	Description
Amiji Maru	Imperial Japanese Navy	World War II: The patrol boat was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Cero (United States Navy).
Idefjord	Norway	World War II: Convoy PK 9: The tanker was torpedoed and damaged in the Barents Sea () by U-997 (Kriegsmarine) with the loss of one crew member. Survivors abandoned ship but later reboarded her. Idefjord was taken in tow by HNoMS Karmøy and HNoMS Tromøy (both Royal Norwegian Navy), arriving at Murmansk, Soviet Union the next day. Later repaired and returned to service.
USS LCS-15	United States Navy	World War II: The Landing Craft Support was sunk in the Pacific Ocean off Okinawa, Japan by a Japanese kamikaze attack. Survivors were rescued by USS Van Valkenburgh (United States Navy).
Neukuhren	Germany	World War II: The cargo ship was bombed and sunk by British aircraft off Fredrikshavn, Denmark.
Onega	Soviet Union	World War II: Convoy PK 9: The cargo ship was torpedoed and sunk in the Barents Sea () by U-997 (Kriegsmarine) with the loss of five of her 42 crew. Survivors were rescued by BO-220 and BO-228 (both Soviet Navy).
Pavin Vinogradov	Soviet Union	The cargo ship was torpedoed and sunk in the Gulf of Alaska by I-180 (Imperial Japanese Navy).
USS SC-1019	United States Navy	The SC-497-class submarine chaser ran aground and sank in the Yucatan Channel () north west of Arroyos de Mantua, Cuba.
Sverre Helmersen	Norway	World War II: The Liberty ship struck a mine and was damaged in the North Sea off Ramsgate, Kent, United Kingdom by U-2326 (Kriegsmarine). She was towed to Falmouth, Cornwall, where she was declared a total loss. Scrapped in 1948.
USS Swallow	United States Navy	World War II: The Auk-class minesweeper was sunk in the Pacific Ocean off the Ryukyu Islands, Japan () by a kamikaze aircraft attack.
U-518	Kriegsmarine	World War II: The Type IXC submarine was depth charged and sunk in the Atlantic Ocean north of the Azores, Portugal () by USS Carter and USS Neal A. Scott (both United States Navy) with the loss of all 56 crew.

23 April

List of shipwrecks: 23 April 1945

Ship	Country	Description
USS Eagle 56	United States Navy	World War II: The Eagle-class patrol craft was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) off Cape Elizabeth, Maine () by U-853 (Kriegsmarine) with the loss of 49 of her 62 crew. Survivors were rescued by USS Selfridge (United States Navy).
Ingerseks	Norway	World War II: The cargo ship was bombed and damaged in Risenfjord by Bristol Beaufighter aircraft of 144, 455 and 489 Squadrons, Royal Air Force. She was declared a total loss.
John Carver	United States	The Liberty ship was sunk by the explosion of her fuel tanks whilst under repair at Philadelphia, Pennsylvania. She was declared a constructive total loss, raised and scrapped.
Kruckau	Germany	World War II: The cargo ship was scuttled in the Elbe, Germany.
Riverton	United Kingdom	World War II: Convoy TBC 135: The cargo ship was torpedoed and damaged in the Bristol Channel off St. Ives, Cornwall () by U-1023 (Kriegsmarine) with the loss of three of her 48 crew. She was beached in St Ives Bay. Later repaired and returned to service.
TR 106	Kriegsmarine	World War II: The RD class minesweeper was scuttled at Genoa.
U-183	Kriegsmarine	World War II: The Type IXC/40 submarine was torpedoed and sunk in the Java Sea () by USS Besugo (United States Navy) with the loss of 54 of her 55 crew.
UJ 2220 Lago Zuai	Kriegsmarine	World War II: The submarine chaser was scuttled on this date.
UJ 2222	Kriegsmarine	World War II: The submarine chaser, a former Gabbiano-class corvette, was sunk off Genoa by United States Navy PT Boats.
VAS 202	Kriegsmarine	World War II: The VAS 201-class submarine chaser was scuttled at La Spezia, Liguria, Italy.

24 April

List of shipwrecks: 24 April 1945

Ship	Country	Description
Alpino	Germany	World War II: The Soldati-class destroyer was scuttled at Genoa, Italy.
USS Frederick C. Davis	United States Navy	World War II: Operation Teardrop: The Edsall-class destroyer escort was torpedoed and sunk in the Atlantic Ocean () by U-546 (Kriegsmarine) with the loss of 115 of her 209 crew.
F 617	Kriegsmarine	World War II: The MFP-C2 landing craft was sunk on this date.
F 0770	Kriegsmarine	World War II: The MZ-B landing craft was sunk on this date.
F 819DM	Kriegsmarine	World War II: The MFP-DM landing craft was sunk on this date.
F 831D	Kriegsmarine	World War II: The MFP-D landing craft was sunk on this date. Salvaged in 1946 and put in Italian service as MZ 831
F 865D	Kriegsmarine	World War II: The MFP-D landing craft was sunk on this date.
F 890DM	Kriegsmarine	World War II: The MFP-DM landing craft was sunk on this date.
F 2703	Kriegsmarine	World War II: The MZ-A landing craft was sunk on this date.
FR 24	Germany	World War II: The Guépard-class destroyer was sunk at Genoa.
FR 32	Germany	World War II: The Bourrasque-class destroyer was scuttled at Genoa.
FR 37	Germany	World War II: The Hardi-class destroyer was scuttled at Genoa.
Ghibli	Germany	The Ciclone-class torpedo boat was scuttled at Genoa.
Huelva	Germany	World War II: The cargo ship was bombed and sunk by Soviet aircraft west of Liepāja, Latvia.
Kronos	Germany	World War II: The cargo ship struck a mine and sank in the Vestfjord, Norway.
Oldenburg	Kriegsmarine	World War II: The minelayer was scuttled at Genoa.
MAS 505, MAS 515 and MAS 558	Italian Social Republic Navy	World War II: The MAS boats were scuttled at Imperia, Liguria.
MAS 525, MAS 550 and MAS 554	Italian Social Republic Navy)	World War II: The MAS boats were scuttled at Genoa.
MAS 556 and MAS 557	Italian Social Republic Navy	World War II: The MAS 552-class MAS boats were scuttled at Imperia.
MAS 561	Italian Social Republic Navy	World War II: The MAS boat was torpedoed and damaged off Imperia by USS PT-305 and USS PT-307 (both United States Navy). She was consequently scuttled.
MS 24	Italian Social Republic Navy	World War II: The torpedo boat was scuttled at La Spezia, Liguria.
MS 51	Italian Social Republic Navy	World War II: The torpedo boat was scuttled at Genoa.
Monmouth Coast	United Kingdom	World War II: The coaster was torpedoed and sunk in the Atlantic Ocean 60 nautical miles (110 km) off Sligo, Ireland by U-1305 (Kriegsmarine with the loss of sixteen of her seventeen crew.
R 162, R 189, R 198 and R 199	Kriegsmarine	World War II: The minesweepers were scuttled at Genoa.
R-212	Kriegsmarine	World War II: The Type R-151 minesweeper was scuttled at Genoa.
RA 253, RA 254, RA 258, RA 262, RA 264, RA 265, RA 266, RA 267 and RA 268	Kriegsmarine	World War II: The minesweepers, former VAS 231-class submarine chasers, were scuttled at Genoa.
RD 101	Kriegsmarine	World War II: The RD class minesweeper was scuttled at Genoa.
RD 102	Kriegsmarine	World War II: The The incomplete RD class minesweeper was scuttled at Genoa. Salvaged post War and put in Italian service as "DV 111".
RD 103	Kriegsmarine	World War II: The The incomplete RD class minesweeper was scuttled at Genoa. Salvaged post War and put in Italian service as "DV 112".
RD 104	Kriegsmarine	World War II: The The incomplete RD class minesweeper was scuttled at Genoa. Salvaged post War and put in Italian service as "DV 114".
RD 105	Kriegsmarine	World War II: The incomplete RD class minesweeper was scuttled at Genoa. Salvaged post War and put in Italian service as "DV 115".
RD 106, RD 107, RD 108, RD 109 and RD 110	Germany	The incomplete minesweepers were scuttled at Genoa.
RD 111, RD 112, RD 113,	Kriegsmarine	World War II: The incomplete RD class minesweepers were scuttled at Genoa.
German torpedo boat S 509 and S 510	Kriegsmarine	World War II: The MAS boats were scuttled at La Spezia.
S 511	Kriegsmarine	World War II: The MAS 552 class MAS boat was scuttled at Imperia, Italy.
SA 1	Kriegsmarine	World War II: The MS 11 class MS Boat was scuttled at Genoa.
SA 11	Kriegsmarine	World War II: The MAS 521 class MAS boat was scuttled at Imperia or Genoa, Italy.
SA 12 and SA 13	Kriegsmarine	'World War II: The MAS 526 class MAS boats were scuttled at Imperia, Italy.
SA 14	Kriegsmarine	World War II: The MAS 552 class MAS boat was scuttled at Imperia, Italy.
SA 15	Kriegsmarine	World War II: The MAS 552 class MAS boat was scuttled off Liguria, Italy.
SA 16	Kriegsmarine	World War II: The MAS 552 class MAS boat was sunk off Imperia, Italy by USS PT-305 and USS PT-306 both (United States Navy).
SA 17	Kriegsmarine	World War II: The MAS 424 class MAS boat was scuttled at Alta Tirreno.
SA 18	Kriegsmarine	World War II: The MAS 423 class MAS boat was scuttled at Alta Tirreno.
SA 19	Italian Social Republic Navy or Kriegsmarine(?)	World War II: The MAS 501 class MAS boat was scuttled at Genoa, Italy. Raised, repaired and returned to Italian service post War, ceded to the Soviet Union in 1948 as War Reparation.
SA 20	Kriegsmarine	World War II: The MAS 552 class MAS boat was scuttled at Monflacone, Italy.
SA 21	Kriegsmarine	World War II: The MAS 526 class MAS boat was scuttled at Monflacone, Italy.
SG 20	Germany	World War II: The corvette, a former Generali-class destroyer, was scuttled at Genoa.
TA 31	German Navy	World War II: The torpedo boat, a former Freccia-class destroyer, was scuttled at Genoa.
TA 32	German Navy	World War II: The torpedo boat, the former Yugoslav destroyer Dubrovnik, was scuttled at Genoa.
TA 34	Germany	World War II: The Le Hardi-class destroyer was scuttled at Genoa. Raised in 1946 and returned to France. She was not repaired and scrapped in 1958.
Tübingen	Germany	World War II: The cargo ship was bombed and sunk in the Kattegat by de Havilland Mosquito aircraft of the Royal Air Force.
U-108	Kriegsmarine	End of World War II: The decommissioned Type IXB submarine was scuttled at Stettin, Pomerania.
U-546	Kriegsmarine	World War II: Operation Teardrop: The Type IXC/40 submarine was depth charged, hedgehogged and sunk in the Atlantic Ocean ( by USS Chatelain, USS Flaherty, USS Hayter, USS Hubbard, USS Janssen, USS Keith, USS Neunzer, USS Pillsbury and USS Varian (all United States Navy) with the loss of 26 of her 59 crew.
UIT-2	Kriegsmarine	World War II: The submarine was scuttled at Genoa.
UIT-3	Kriegsmarine	World War II: The submarine was scuttled at Genoa.
UJ 206	Kriegsmarine	World War II: The submarine chaser, a former Gabbiano-class corvette, was scuttled at Venice. Raised, repaired and put in Italian service as Bombarda in 1951.
UJ 2221, UJ 2222, UJ 2224, UJ 2227, and UJ 6083	Kriegsmarine	World War II: The submarine chasers, former Gabbiano-class corvettes, were scuttled at Genoa.
UJ 2225	Kriegsmarine	World War II: The incomplete Ape class submarine chaser, a former Gabbiano-class corvette, wwas scuttled at Ansaldo Shipyard, Genoa.
UJ 2226	Kriegsmarine	World War II: The Ape class submarine chaser, a former Gabbiano-class corvette, was scuttle at Monfalcone.
UJ 2228	Kriegsmarine	World War II: The incomplete Ape class submarine chaser, a former Gabbiano-class corvette, was scuttled at CRDA Shipyard, Monfalcone.
UJ 6084	Kriegsmarine	World War II: The incomplete Ape class submarine chaser, a former Gabbiano-class corvette, was scuttled at OTO Shipyard, Livorno.
UJ 6086	Kriegsmarine	World War II: The incomplete Ape class submarine chaser, a former Gabbiano-class corvette, was scuttled at OTO Shipyard, Livorno.
VAS 238	Kriegsmarine	World War II: The VAS 231 class submarine chaser was scuttled at Genoa.
VAS 252, VAS 253 and VAS 263	Italian Social Republic Navy	World War II: The submarine chasers were scuttled at La Spezia.

25 April

List of shipwrecks: 25 April 1945

Ship	Country	Description
BK-212	Soviet Navy	World War II: The Project 1125 class armored motor gunboat was sunk on this date.
BK-214	Soviet Navy	World War II: The Project 1125 class armored motor gunboat was sunk on this date.
Emily Sauber	Nazi Germany	World War II: The cargo ship was torpedoed and sunk in the Baltic Sea by TK-133 (Soviet Navy).
F 846D	Kriegsmarine	World War II: The Type D Marinefahrprahm was sunk on this date.
F 873D	Kriegsmarine	World War II: The Type D Marinefahrprahm was sunk on this date.
F 969D	Kriegsmarine	World War II: The Type D Marinefahrprahm was sunk incomplete at Monfalcone, Italy.
F 970D	Kriegsmarine	World War II: The Type D Marinefahrprahm was sunk incomplete at Monfalcone, Italy.
F 1156D	Kriegsmarine	World War II: The Type D Marinefahrprahm was sunk on this date.
Graf Zeppelin	Kriegsmarine	World War II: The incomplete Graf Zeppelin-class aircraft carrier was scuttled at Stettin, West Pomerania. She was raised and salvaged by the Soviet Union in 1947.
Iglesias	Nazi Germany	World War II: The cargo ship was scuttled at Genoa, Italy. She was later raised and salvaged.
R-162, R-198, R-199	Kriegsmarine	World War II: The Type R-151 minesweepers were scuttled at Genoa.
RA 254, RA 258, RA 264, RA 260	Kriegsmarine	World War II: The VAS 301 class submarine chasers were scuttled at Genoa.
RD 147	Kriegsmarine	World War II: The incomplete RD class minesweeper was scuttled at Costaguta shipyard, Genoa.
Ro-109	Imperial Japanese Navy	World War II: The Ro-100-class submarine was sunk in the Pacific Ocean 165 nautical miles (306 km) south south west of Okino-Daito Jima () by USS Horace A. Bass (United States Navy).
SG 20	Kriegsmarine	World War II: The escort ship, a former Generali Class torpedo Boat, was scuttled at Oneglia, Liguria, Italy as a blockship.
SG 23	Kriegsmarine	World War II: The escort ship was scuttled at Genoa.
TA 32	Kriegsmarine	World War II: The radar picket destroyer/torpedo boat was scuttled at Genoa.
U-326	Kriegsmarine	World War II: The Type VIIC/41 submarine was torpedoed and sunk in the Bay west of Brest, Finistère, France () by a Consolidated B-24 Liberator aircraft of the United States Navy with the loss of all 43 crew.
UJ 2231	Kriegsmarine	World War II: The submarine chaser, a former Elan-class corvette, was scuttled at Genoa.
VAS 252, VAS 253, VAS 263	Italian Social Republic Navy	World War II: The VAS 301 class submarine chasers were scuttled at Genoa.
Vs 343	Kriegsmarine	World War II: The KSK-2 class Naval Drifter/Vorpostenboot was scuttled.
W-41	Imperial Japanese Navy	World War II: The W-19 class Minesweeper was torpedoed and sunk in the East China Sea north of Keelung, Formosa () by USS Cod (United States Navy). There were 75 survivors, one was rescued by USS Cod as a prisoner of war.

26 April

List of shipwrecks: 26 April 1945

Ship	Country	Description
BK-213	Soviet Navy	World War II: The Project 1125 class armored motor gunboat was sunk on this date.
F-248A	Kriegsmarine	World War II: The Marinefahrprahm was sunk in the Baltic Sea, either by TK-131 and TK-135 both (Soviet Navy), or by Soviet aircraft.
TK-802	Soviet Navy	World War II: The G-5 class motor torpedo boat was lost on this date.
Ursa	Germany	World War II: The cargo ship was scuttled at Bremen. She was raised later in the year, repaired and entered Finnish service in 1947 as Margareta.
V1114	Kriegsmarine	World War II: The Vorpostenboot was bombed and sunk in the German Bight by aircraft of the Royal Air Force.
Wa-6	Imperial Japanese Navy	World War II: The auxiliary minesweeper was torpedoed and sunk in the Sunda Sea by HMS Sleuth and HMS Solent (both Royal Navy).

27 April

List of shipwrecks: 27 April 1945

Ship	Country	Description
BK-8	Soviet Navy	World War II: The Project 1125 class armored motor gunboat was sunk on this date.
Canada Victory	United States	World War II: The Victory ship was sunk in the Pacific Ocean off Okinawa, Japan () by a Japanese kamikaze attack. Two gunners and a crewman were killed. Survivors swam to USS Lauderdale (United States Navy).
HMS Redmill	Royal Navy	World War II: The Captain-class frigate was torpedoed and severely damaged in the Atlantic Ocean west of Ireland () by U-1105 (Kriegsmarine) with the loss of 32 of her 186 crew. She was towed to Lisahally, County Londonderry by HMS Rupert (Royal Navy) but was declared a constructive total loss.
Sperrbrecher 167	Kriegsmarine	World War II: The Sperrbrecher struck a mine and sank in the North Sea off Cuxhaven, Schleswig-Holstein ().

28 April

List of shipwrecks: 28 April 1945

Ship	Country	Description
CH-17	Imperial Japanese Navy	World War II: The No.13-class submarine chaser was torpedoed and sunk off Tomei Harbor, Fukue Shima, Goto Archipelago, () by USS Springer.
Hatsushima	Imperial Japanese Navy	World War II: The Hashima-class cable layer was torpedoed and sunk off Kii Suido south south east of Mikizaki () by USS Sennet (United States Navy).
T-146	Imperial Japanese Navy	World War II: The No.101-class landing ship was torpedoed and sunk off Tomei Harbor, Fukue Shima, Goto Archepeligo, () by USS Trepang.
U-56	Kriegsmarine	World War II: The Type IIC submarine was sunk in a Royal Air Force air raid on Kiel, Schleswig-Holstein with the loss of six of her 25 crew.
HMS BYMS 2053	Royal Navy	World War II: The YMS-1-class minesweeper struck a mine and sank off Porto Corsini, Ravenna, Italy.

29 April

List of shipwrecks: 29 April 1945

Ship	Country	Description
Daishu Maru	Japan	World War II: The Standard Type 2A Tanker (a.k.a. Taishu Maru) was torpedoed and sunk in the Pacific Ocean east of Kamaishi, Honshu () by USS Cero (United States Navy). Her captain and 29 crewmen were killed.
F5	Kriegsmarine	World War II: The F-class escort ship struck a mine en route from Copenhagen, Denmark, to Swinemünde, Pomerania. Collided with a wreck while under tow and sank.
I-44	Imperial Japanese Navy	World War II: The Kaidai-class submarine was depth charged, torpedoed and sunk in the Pacific Ocean 220 nautical miles (410 km) south east of Okinawa () by a Grumman TBF Avenger from USS Tulagi (United States Navy).
Otome Maru	Imperial Japanese Navy	World War II: The guard ship was torpedoed and sunk by USS Besugo (United States Navy) north of Matashiri Island.
Petropolis	Germany	World War II: The cargo ship was bombed by aircraft at Hamburg, Germany. Beached at Juelsand in May 1945. Broken up in situ in 1946.
Quito	Kriegsmarine	World War II; The submarine tender/supply ship (a.k.a. Teiju Maru and Kito Go) was torpedoed and sunk in the Java Sea off Tanjung Puting Borneo () by USS Bream (United States Navy).
Ro-46	Imperial Japanese Navy	World War II: The Kaidai-class submarine was sunk in the Pacific Ocean 220 nautical miles (410 km) south east of Okinawa () by aircraft from USS Tulagi (United States Navy). Lost with all 86 hands.
HMS Sheldrake	Royal Navy	World War II: The Kingfisher-class sloop was damaged/sunk in the North Sea by a Kriegsmarine Seehund midget submarine.
Takasago Maru	Japan	World War II: The tanker was torpedoed and sunk in the Gulf of Siam by HMS Tradewind (Royal Navy).
Teisho Maru	Imperial Japanese Navy	World War II: The auxiliary naval vessel was torpedoed and sunk in the Java Sea by USS Gabilan (United States Navy).
U-286	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Barents Sea () by HMS Anguilla, HMS Cotton and HMS Loch Insh (all Royal Navy) with the loss of all 51 crew.
U-307	Kriegsmarine	World War II: The Type VIIC submarine was depth charged and sunk in the Barents Sea () by HMS Loch Insch (Royal Navy) with the loss of 37 of her 51 crew.
U-1017	Kriegsmarine	World War II: The Type VIIC/41 submarine was depth charged and sunk in the Atlantic Ocean north west of Ireland () by a Consolidated B-24 Liberator aircraft of 120 Squadron, Royal Air Force with the loss of all hands (34 known dead).

30 April

List of shipwrecks: 30 April 1945

Ship	Country	Description
HMS Goodall	Royal Navy	World War II: Convoy RA 66: The Captain-class frigate was scuttled by gunfire from the frigate HMS Anguilla (Royal Navy) in the Barents Sea. HMS Goodall had been torpedoed and severely damaged by U-286 (Kriegsmarine) with the loss of 112 of her 156 crew on 29 April 1945.
M 455	Kriegsmarine	World War II: The minesweeper was sunk in a British air raid on Cuxhaven, Schleswig-Holstein.
Miho Maru	Japan	World War II: Convoy MOSI-05: The cargo ship was torpedoed and sunk in the Yellow Sea by USS Trepang (United States Navy).
Nuwajima	Imperial Japanese Navy	World War II: The Hirashima-class minelayer (A.K.A. Nuwashima) was bombed and damaged by Boeing B-29 Superfortress aircraft of the 314th Bomb Group. Her stern was hit and blown off and she was beached on Onyu Shima (). Fourteen crewmen were killed. Scrapped post-war.
RD 127	Kriegsmarine	World War II: The RD class minesweeper was demolished by her crew at Monfalcone.
RD 128	Kriegsmarine	World War II: The incomplete RD class minesweeper was demolished at Celli shipyard, Venice.
RD 129	Kriegsmarine	World War II: The incomplete RD class minesweeper was demolished at Celli shipyard, Venice.
RD 130	Kriegsmarine	World War II: The incomplete RD class minesweeper was demolished at Celli shipyard, Venice.
TA 43	Kriegsmarine	World War II: The Beograd-class destroyer was sunk by Yugoslav artillery, or scuttled, at Trieste, Italy.
U-879	Kriegsmarine	World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean east of Cape Hatteras, North Carolina, United States () by USS Bostwick, USS Coffman, USS Natchez, and USS Thomas (all United States Navy) with the loss of all 52 crew.
U-1107	Kriegsmarine	World War II: The Type VIIC/41 submarine was bombed and sunk in the Bay of Biscay west of Brest, Finistère, France () by a United States Navy Consolidated PBY Catalina aircraft of Squadron VP-63 with the loss of 37 crew.
U-3525	Kriegsmarine	World War II: The Type XXI submarine was bombed and damaged in the western Baltic Sea. She was consequently scuttled at Kiel, Schleswig-Holstein on 3 May.
Yuna Maru	Japan	World War II: The tanker struck a mine and sank in the Gulf of Siam off Linga, Malaya.

Unknown date

For the sinking of the Belgian tanker Ampetco as a target during April 1945, see the entry for 18 September 1944.

List of shipwrecks: Unknown date 1945

Ship	Country	Description
Adler	Kriegsmarine	World War II: The training ship was sunk by Allied bombers at Kiel.
CHa-199	Imperial Japanese Navy	World War II: The CHa-1 class auxiliary submarine chaser was sunk off Matsure Light, Japan by a mine sometime in April.
Detlef	Germany	World War II: The cargo ship was sunk at Kiel during and Allied air raid. The wreck was raised in 1948 and scrapped.
F 170A	Kriegsmarine	World War II: The Mine Destructor Vessel, a converted MFP-A landing craft, was sunk sometime in April.
F 258AM	Kriegsmarine	World War II: The MFP-AM landing craft was sunk sometime in April.
F 266AM	Kriegsmarine	World War II: The MFP-AM landing craft was sunk sometime in April.
Hummel	Germany	The cargo ship was wrecked at Stettin, Pomerania. Wreck scuttled in 1947.
Kibitsu Maru	Imperial Japanese Army	The Kibitsu Maru-class landing craft depot ship sprang a major leak near Kobe and was beached to prevent sinking sometime in April. Refloated in April and was under repair from April–July before returning to service.
Mario Ruta	Italian Social Republic	World War II: The cargo liner was scuttled at Trieste. Wreck scrapped in 1946.
HMS MGB 99	Royal Navy	The VTB-11-class motor gun boat was lost sometime in April.
PiLB 43/II	Kriegsmarine	World War II: The PiLB 43 type landing craft was sunk by Soviet bombers sometime in April.
R-224	Kriegsmarine	World War II: The Type R-218 minesweeper was sunk at Swinemünde, Pomerania by Soviet aircraft sometime in April.
RD 135	Kriegsmarine	World War II: The incomplete RD class minesweeper was scuttled at OTO shipyard, Leghorn in late April.
RD 135	Kriegsmarine	World War II: The incomplete RD class minesweeper was scuttled at Picchiotti shipyard, Limite Sal Arno in late April.
RD 140	Kriegsmarine	World War II: The incomplete RD class minesweeper was scuttled at Picchiotti shipyard, Limite Sal Arno in late April.
RA 261	Kriegsmarine	World War II: The VAS 231 class submarine chaser was scuttled at La Spezia, Liguria, Italy sometime in April.
SA 2and SA 3	Kriegsmarine	World War II: The MS 11 class MS Boats were scuttled at La Spezia sometime in April.
SA 4	Kriegsmarine	World War II: The MS 51 class MS Boat was scuttled at La Spezia sometime in April.
USS Snook	United States Navy	The Gato-class submarine was lost in the South China Sea between 8 and 20 April, cause unknown.
U-246	Kriegsmarine	World War II: The Type VIIC submarine was lost on patrol in the Irish Sea south of the Isle of Man with the loss of all 48 crew.
U-325	Kriegsmarine	The Type VIIC/41 submarine was lost on patrol on or after 7 April with the loss of all hands, apparently after striking a mine. Her wreck was discovered in the English Channel at in 2006.
U-396	Kriegsmarine	The Type VIIC submarine was lost on patrol after 11 April with the loss of all 45 crew due to a problem with her hydroplanes.
U-398	Kriegsmarine	World War II: The Type VIIC submarine was lost on patrol in the Atlantic Ocean or Arctic Sea on or after 17 April with the loss of all 43 crew.
U-548	Kriegsmarine	World War II: The Type IX submarine was depth charged and sunk in the Atlantic Ocean off Cape Henry, Virginia, United States () by USS Bostwick, USS Coffman, USS Natchez and USS Thomas (DE-102) (all United States Navy). Various dates are given by different sources; 19, 29 and 30 April.
U-857	Kriegsmarine	World War II: The Type IXC/40 submarine was lost on patrol in the Atlantic Ocean off the east coast of the United States after 14 April with the loss of all 59 crew. Cause unknown.
U-1055	Kriegsmarine	World War II: The Type VIIC submarine was lost on patrol in the Atlantic Ocean or English Channel after 23 April with the loss of all 49 crew. Cause unknown.
VAS 203 and VAS 225	Kriegsmarine	World War II: The VAS 201 class submarine chasers were scuttled at Alto Tirino, Abruzzo.