List of shipwrecks in October 1943

The list of shipwrecks in October 1943 includes ships sunk, foundered, grounded, or otherwise lost during October 1943.

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries.

1 October
List of shipwrecks: 1 October 1943
ShipCountryDescription
Empire Commerce  United Kingdom World War II: Convoy MKS 26: The tanker was torpedoed in the Mediterranean Sea off Philippeville, French Algeria (37°19′N 6°40′E) by U-410 ( Kriegsmarine). Her stern section sank but her bow section remained afloat and attempts to scuttle it failed, the bow was towed to shore and beached at Algiers and was gutted by fire. All 51 people aboard were rescued by HMS Alisma ( Royal Navy).[1]
Euro  Regia Marina World War II: The Turbine-class destroyer was bombed and sunk by German aircraft off Leros, Greece. Nine crew were killed or missing, and 7 more died the next month when the island was retaken by the Germans.[2][3]
Fort Howe  United Kingdom World War II: Convoy MKS 26: The Fort ship was torpedoed and sunk in the Mediterranean Sea (37°19′N 6°40′E) by U-410 ( Kriegsmarine) with the loss of two Gunners of her 70 crew. Survivors were rescued by HMS Alisma and HMS Spirea (both  Royal Navy).[4]
I-20  Imperial Japanese Navy World War II: The Type C submarine was shelled and sunk in the Pacific Ocean off Vella Lavella, Solomon Islands 7°40′N 157°10′E by USS Eaton ( United States Navy).[5]
Kinkasan Maru  Japan World War II: Convoy SO-805: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Admiralty Islands (04°00′N 143°50′E) by USS Peto ( United States Navy). Three crew killed.[6]
HMS LCT 553  Royal Navy The Mk 4 landing craft tank was lost in the Mediterranean Sea.[7]
Metapan  United States World War II: Convoy UGS-15: The cargo ship was sunk by a mine in the Mediterranean Sea north east of Tunis, Tunisia (37°20′N 10°35′E). The 74 people aboard were rescued by USS Syncline ( United States Navy).[8]
USS PT-68  United States Navy World War II: The Elco 77' PT boat ran aground off Vincke Point, Huon Peninsula, New Guinea (05°56′S 147°18′E) and was scuttled. The whole crew was rescued by PT-391.[9][10][11]
R 205  Kriegsmarine World War II: The minesweeper struck a mine and sank in the Irben Strait.[12]
Sergej Kirov  Soviet Union World War II: Convoy VA 18: The cargo ship was torpedoed and sunk in the Kara Sea 12 nautical miles (22 km) south east of Izvestij Island (76°48′N 83°52′E) by U-703 ( Kriegsmarine) with the loss of one of her 54 crew. Survivors were rescued by T-909 ( Soviet Navy).[13]
Storviken  Norway World War II: The cargo ship was torpedoed and sunk in the Indian Ocean (11°45′N 48°07′E) by I-10 ( Imperial Japanese Navy) with the loss of 37 of her 56 crew. Some of the survivors were rescued by HMS Sennen ( Royal Navy), others reached land. Two were taken as prisoners of war.[14]
T-896  Soviet Navy World War II: Convoy VA 18: The auxiliary minesweeper was torpedoed and sunk in the Kara Sea (75°28′N 83°25′E) by U-960 ( Kriegsmarine) with the loss of all 43 crew.[15]
Tahsinia  United Kingdom World War II: The cargo ship was torpedoed, shelled and sunk in the Laccadive Sea north east of the Maldive Islands (6°51′N 74°38′E) by U-532 ( Kriegsmarine). All 48 crew were rescued by Nevasa ( United Kingdom) or reached land in their lifeboats.[16]
Tonei Maru  Japan World War II: Convoy SO-805: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Admiralty Islands (04°00′N 143°50′E) by USS Peto ( United States Navy). Ten crew were killed.[6]
USS YDG-4  United States Navy The degaussing vessel ran aground and sank in Bulari Passage, New Caledonia.[17]

2 October
List of shipwrecks: 2 October 1943
ShipCountryDescription
F 302  Kriegsmarine World War II: The Type A Marinefahrprahm was sunk by a mine off Cape Takil, Black Sea (45°21′N 36°29′E). There were five dead and four wounded.[18][19][20]
F 315  Kriegsmarine World War II: The Type A Marinefahrprahm was damaged by a mine off Cape Takil, Black Sea (45°21′N 36°29′E) and scuttled by RA-56 ( Kriegsmarine) to prevent capture. There were one dead and 12 wounded.[18][21][22]
Fuku Maru  Japan World War II: The cargo ship was damaged in an air attack at Rabaul, New Guinea and beached in Simpson Harbor. Scrapped in place 1958.[23]
Haiching  United Kingdom World War II: The cargo ship was torpedoed and sunk in the Arabian Sea 80 nautical miles (150 km) west south west of Bombay, India (18°46′N 71°55′E) by U-168 ( Kriegsmarine) with the loss of 12 of her 70 crew. Survivors were rescued by the dhow Mahadro Prasad ( India).[24]
USS LCT 496  United States Navy World War II: The LCT-1-class landing craft tank was shelled and sunk in the English Channel.[25]
HMS LCT 618  Royal Navy The LCT-1-class landing craft tank was lost in the Mediterranean Sea.[26]
R 35  Kriegsmarine World War II: The R 25-class minesweeper was bombed and sunk by a Douglas A-20 Havoc aircraft in the Black Sea. Later raised, repaired and returned to service.[27]
Stanmore  United Kingdom World War II: Convoy KMS 27: The cargo ship was torpedoed and damaged in the Mediterranean Sea off Cape Ivi, Algeria (36°41′N 1°10′E) by U-223 ( Kriegsmarine). She was taken in tow by HMS Filla ( Royal Navy), which rescued the 59 crew. Stanmore was beached at Cape Ténès, Algeria the next day but later broke in two and was declared a total loss.[28]

3 October
List of shipwrecks: 3 October 1943
ShipCountryDescription
Emile-Marie  France World War II: The trawler was sunk by a mine off Hourtin, France. Her ten crew were all lost.[29][30]
USS Henley  United States Navy World War II: The Bagley-class destroyer was torpedoed and sunk at Finschhaven, New Guinea by Ro-108 ( Imperial Japanese Navy) with the loss of fifteen of her 258 crew.
HMT Meror  Royal Navy World War II: The naval trawler struck a mine and sank in the North Sea off the mouth of the Humber. The whole crew was rescued.[31][32][33]
X 10  Royal Navy World War II: The X-class midget submarine was abandoned by her crew and scuttled in the North Sea.[31][34]

4 October
List of shipwrecks: 4 October 1943
ShipCountryDescription
F 125  Kriegsmarine World War II: The Type A Marinefahrprahm was sunk by a mine in the Kerch Strait, Black Sea (45°18′N 36°39′E). There were five dead and five wounded.[35][18][36]
F 231  Kriegsmarine World War II: Operation Leader: The Type A Marinefahrprahm was bombed by aircraft based on USS Ranger ( United States Navy) and beached near Sandnessjoen, Norway. Three crew were wounded.[18][37]
La Plata  Germany World War II: Operation Leader: The cargo ship was bombed by aircraft based on USS Ranger ( United States Navy) and beached near Bodø, Norway.[38]
Livadia  Germany World War II: The cargo ship was shelled and sunk in the English Channel off Calais, France by British shore based artillery. Her whole crew was saved.[12][39][40]
Marit  Norway World War II: Convoy XT 4: The tanker was torpedoed and sunk in the Mediterranean Sea (32°57′N 21°11′E), by U-596 ( Kriegsmarine) with the loss of two of her 72 crew. Survivors were rescued by HMML 350 ( Royal Navy).[41][42]
Rabat  Germany World War II: Operation Leader: The cargo ship was bombed and sunk by aircraft based on USS Ranger ( United States Navy) off Bodø, Norway.[43]
Skramstad  Kriegsmarine World War II: Operation Leader: The cargo ship was bombed and sunk at Bodø, Norway, by aircraft based on USS Ranger ( United States Navy). Of the 835 men above, 1 was killed, 27 missing and 40 wounded.[40][44]
Topeka  Norway World War II: Operation Leader: The cargo ship was bombed by aircraft based on USS Ranger ( United States Navy) off Sandnessjøen, Norway, and beached. She was wrecked off Jæren while being towed away on 1 December 1945. Three Norwegian and 3 or 6 German were killed.[40][45][46]
U-279  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (60°40′N 26°30′W) by a Lockheed Ventura aircraft of the United States Navy with the loss of all 48 crew.[47]
U-389  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Iceland (60°51′N 28°26′W) by a B-24 Liberator aircraft of 120 Squadron, Royal Air Force with the loss of all 50 crew.[48]
U-422  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (43°18′N 28°58′W) by Grumman TBF Avenger and Grumman F4F Wildcat aircraft based on USS Card ( United States Navy) with the loss of all 49 crew.[49][50]
U-460  Kriegsmarine World War II: The Type XIV submarine was depth charged and sunk in the Atlantic Ocean (43°18′N 28°58′W) by Grumman TBF Avenger and Grumman F4F Wildcat aircraft based on USS Card ( United States Navy) with the loss of 62 of her 64 crew.
UJ 1214 Mars  Kriegsmarine World War II: The Mob-FD1-class submarine chaser was mined at Bussesund, Norway (70°25′N 31°03′E). One crewman was killed.[51][52]
Vaagan  Norway World War II: Operation Leader: The cargo ship was bombed and sunk by aircraft based on USS Ranger ( United States Navy). The crew was saved.[53]

5 October
List of shipwrecks: 5 October 1943
ShipCountryDescription
Chicago Maru  Japan World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Tullibee ( United States Navy).[54]
Fort Fitzgerald  United Kingdom World War II: Convoy UGS 18: The Fort ship was bombed and sunk in the Mediterranean Sea off Cape Ténès, Algeria by Dornier Do 217 aircraft of Kampfgeschwader 100, Luftwaffe.[12]
Konron Maru  Japan World War II: The passenger ship was torpedoed and sunk in the Tsushima Strait off Honshu by USS Wahoo ( United States Navy) with the loss of 544 lives.[55]
Legnano  Regia Marina World War II: The Azio-class minelayer was bombed and sunk by German aircraft off Leros, Greece.[56]
Pommern  Kriegsmarine World War II: The minelayer struck an Italian mine and sank in the Ligurian Sea 1.5 nautical miles (2.8 km) south of San Remo, Italy. 20 crew were killed.[12][57][58]
Prode  Italy World War II: The cargo ship was sunk at Portolago, Leros by Luftwaffe aircraft.[59]
USS LST-448  United States Navy World War II: The landing ship tank sank under tow south of Vella Gulf (08°03′S 156°43′E) after being bombed and damaged by Japanese aircraft west of Vella Lavella (07°45′S 156°30′E) on 1 October.[60]
Unknown  German Army World War II: Strelna Raid: Two motor boats were sunk by Soviet frogmen at Strelna.[61]

6 October
List of shipwrecks: 6 October 1943
ShipCountryDescription
Besposhchadny  Soviet Navy World War II: The Gnevny-class destroyer was bombed and sunk in the Black Sea off the Crimea by Junkers Ju 87 Stukas.[62]
USS Chevalier  United States Navy World War II: Naval Battle of Vella Lavella: The Fletcher-class destroyer was torpedoed and damaged, with her bows blown off. She was then rammed in the stern by USS O'Bannon ( United States Navy) and further damaged. She managed to sink a Japanese destroyer despite this damage. She was scuttled the next day off Vella Lavella, Solomon Islands by USS La Vallette ( United States Navy).
Kanko Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Wahoo ( United States Navy).[12]
Kazahaya  Imperial Japanese Navy World War II: The tanker was torpedoed and damaged in the Pacific Ocean off the Caroline Islands by USS Steelhead ( United States Navy). She was torpedoed and sunk later that day by USS Tinosa ( United States Navy).[12][63]
Kharkov  Soviet Navy World War II: The Leningrad-class destroyer was bombed and sunk in the Black Sea off the Crimea by Junkers Ju 87 Stuka aircraft of the Luftwaffe.[64]
No. 11  Soviet Navy The D-3-class motor torpedo boat was lost on this date.[65]
No. 124  Soviet Navy The MO-4-class motor anti-submarine boat was lost on this date.[66]
Sposobny  Soviet Navy World War II: The Soobrazitelny-class destroyer was bombed and sunk in the Black Sea off the Crimea by Junkers Ju 87 Stukas.[67]
Yūgumo  Imperial Japanese Navy World War II: Naval Battle of Vella Lavella: The Yūgumo-class destroyer was torpedoed and sunk off Vella Lavella by USS Chevalier and USS Selfridge (both  United States Navy) with the loss of 138 of her 225 crew.

7 October
List of shipwrecks: 7 October 1943
ShipCountryDescription
Eridania  Italy World War II: The cargo ship was torpedoed and sunk in the Aegean Sea by ORP Sokół ( Polish Navy) with the loss of 12 lives.[12][68]
F 496  Kriegsmarine World War II: The Type C2 Marinefahrprahm was damaged beyond repair by gunfire from HMS Unruly ( Royal Navy) in the Aegean Sea and was beached on Stampalia Island. Three crew were killed and the other were captured by Italian for some time. She was not repaired.[18][69]
Karpathos  Kriegsmarine The Type A Marinefahrprahm was sunk on this date.[18]
Kikukawa Maru  Imperial Japanese Navy World War II: The transport caught fire and burned at Eten Island, Truk. She exploded when the fire reached her cargo of fuel. The explosion also blew apart salvage tugboat Ojima ( Imperial Japanese Navy) that had gone to her assistance.[70]
USS LCT 215  United States Navy The LCT-1-class landing craft tank foundered in heavy seas off the North African coast.[71]
USS LCT 216  United States Navy The LCT-1-class landing craft tank foundered in heavy seas off the North African coast.[72]
HMS LCT 621  Royal Navy The LCT-4-class landing craft tank was lost in the Mediterranean Sea.[73]
Ojima  Imperial Japanese Navy World War II: The Tategami-class salvage tug was blown apart and sunk at Eten Island, Truk, when Kikukawa Maru ( Imperial Japanese Navy) exploded while she was alongside providing assistance fighting a fire aboard.[74]
USS S-44  United States Navy World War II: The S-class submarine was shelled and sunk by Ishigaki ( Imperial Japanese Navy) 18 nautical miles (33 km) from Uomi Saki, Aruito Island, Kuril Islands. Two survivors were rescued and made prisoners of war; 55 crew were killed.[75]
Stylis  Kriegsmarine The Type C Marinefahrprahm was sunk on this date.[18]
Tinos  Kriegsmarine The Type C2 Marinefahrprahm was sunk on this date.[18]
UJ 2111 Tramaglio  Kriegsmarine World War II: The submarine chaser was shelled and sunk by British warships north of Stampalia, Dodecanese.[76]

8 October
List of shipwrecks: 8 October 1943
ShipCountryDescription
Bulgaria  Kriegsmarine World War II: The minelayer was torpedoed and sunk in the Aegean Sea by HMS Unruly ( Royal Navy). Of the 366 men aboard (285 troops and 81 crew), 302 were reported to have been rescued two days later.[12][40]
Dainichi Maru  Japan World War II: Convoy 772: The troopship was torpedoed and sunk in the South China Sea west of Luzon, Philippines by USS Gurnard ( United States Navy) with the loss of 2,089 lives.[77][78]
Kashu Maru  Imperial Japanese Army World War II: The transport ship was torpedoed and sunk in the Pacific Ocean (00°26′S 146°17′E) by USS Guardfish ( United States Navy). One crewman was killed.[79]
ORP Orkan  Polish Navy World War II: Convoy SC 143: The M-class destroyer was torpedoed and sunk in the Atlantic Ocean off Greenland (56°30′N 26°26′W) by U-378 ( Kriegsmarine) with the loss of 184 of her 228 crew. Survivors were rescued by HMS Musketeer ( Royal Navy).[80]
Taian Maru  Japan World War II: The cargo ship was torpedoed and sunk in the South China Sea west of Luzon by USS Gurnard ( United States Navy). 45 military and 32 crewmen were killed.[12][78][81]
U-419  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (56°31′N 27°05′W) by B-24 Liberators of 86 Squadron, Royal Air Force with the loss of 48 of her 49 crew.[82]
U-610  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (55°45′N 24°33′W) by a Short Sunderland aircraft of 423 Squadron, Royal Canadian Air Force with the loss of all 51 crew.[83]
U-643  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (56°14′N 26°55′W) by B-24 Liberators of 86 and 120 Squadrons, Royal Air Force with the loss of 30 of her 48 crew.[84]

9 October
List of shipwrecks: 9 October 1943
ShipCountryDescription
USS Buck  United States Navy World War II: Operation Avalanche: The Sims-class destroyer was torpedoed and sunk in the Tyrrhenian Sea off Salerno, Italy (39°57′N 14°28′E) by U-616 ( Kriegsmarine) with the loss of 150 of her 247 crew. Survivors were rescued by USS Gleaves ( United States Navy) and HMS LCT-170 ( Royal Navy.[85]
HMS Carlisle  Royal Navy World War II: The C-class cruiser was bombed and severely damaged in the Scarpanto Strait by Junkers Ju 87 aircraft of I Staffeln, Sturzkampfgeschwader 3, Luftwaffe. She was towed to Alexandria, Egypt by HMS Rockwood ( Royal Navy) but was deemed a constructive total loss. She spent the rest of the war as a stores ship at Alexandria and was scrapped in 1949. 24 crew were killed or died of wounds.[86]
Hankow Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Wahoo ( United States Navy).[12]
Kogane Maru  Japan World War II: The cargo liner was torpedoed and sunk in the Banda Sea off Ambon Island by USS Rasher ( United States Navy).[87]
MS-26  Regia Marina The MS-11-class E-boat was wrecked at Leros, Greece.[88]
HMS Panther  Royal Navy World War II: The P-class destroyer was bombed and sunk in the Scarpanto Strait by Junkers Ju 87 aircraft of I Staffeln, Sturzkampfgeschwader 3, Luftwaffe with the loss of 36 crew. Survivors were rescued by Miaoulis ( Hellenic Navy).[12][31]
Stuttgart  Germany World War II: The hospital ship was sunk at Gotenhafen during an American air raid with the loss of 48 lives.[12][89][90][91]
UJ 1210  Kriegsmarine World War II: The KUJ-class submarine chaser was sunk at Gotenhafen during an American air raid.[12][92][93]
Yorkmar  United States World War II: Convoy SC 143: The cargo ship was torpedoed and sunk in the Atlantic Ocean 475 nautical miles (880 km) south of Iceland (56°38′N 20°30′W) by U-645 ( Kriegsmarine) with the loss of 13 of the 67 people aboard. Survivors were rescued by HMS Duckworth ( Royal Navy) and HMCS Kamloops ( Royal Canadian Navy).[94]

10 October
List of shipwrecks: 10 October 1943
ShipCountryDescription
F 474  Kriegsmarine World War II: The Type C Marinefährprahm was sunk in the Black Sea off Kerch, Soviet Union by Soviet aircraft, or torpedoed and sunk by A-2 ( Soviet Navy).[12][95]
Hino Maru No. 5  Imperial Japanese Navy World War II: The Hino Maru No. 5-class transport was bombed and sunk 24 nautical miles (44 km; 28 mi) west of Buka, Bouganville (05°25′S 154°17′E) by Consolidated B-24 Liberator aircraft of the United States Army Air Force.[96]
Isuzugawa Maru  Japan World War II: Convoy No. 432: The transport ship was torpedoed and sunk in the South China Sea west of Luzon, Philippines by USS Bonefish ( United States Navy). Two passengers and two crew were killed.[97]
Mario Roselli  Germany World War II: The cargo ship, packed with about 5,500 Italian prisoners of war, was bombed and damaged in Corfu Bay by Allied aircraft with the loss of 1,302 lives. She was bombed again the following day and sunk.[12]
No. 311  Soviet Navy The Project 1125 armored motor gunboat was lost on this date.[98]
Schiff 47 Wilhelm Huth  Kriegsmarine The decoy ship was sunk on this date.[99]
StuBo 1041  Kriegsmarine The StuBo42 type landing craft/motor launch was sunk on this date.[100]
Teibi Maru  Japan World War II: Convoy No. 432: The transport ship was torpedoed and damaged in the South China Sea west of Luzon (14°44′N 110°19′E) by USS Bonefish ( United States Navy). She was beached on Mysury but sank. Six passengers and eight crew were killed.[97]

11 October
List of shipwrecks: 11 October 1943
ShipCountryDescription
George H. Himes  United States World War II: The Liberty ship was torpedoed by Japanese aircraft off Koli Point, Guadalcanal and was beached. Later repaired and returned to service.[101]
HMML 1054  Royal Navy The Harbour Defence Motor Launch was wrecked off the mouth of the Tees.[102]
HMS Hythe  Royal Navy World War II: The Bangor-class minesweeper was torpedoed and sunk by U-371 ( Kriegsmarine) in the Mediterranean Sea off Bougie, Algeria (37°04′N 5°00′E) with the loss of all 62 crew.
Jalabala  India World War II: The cargo ship was torpedoed and sunk in the Laccadive Sea west of Cape Comorin (11°40′N 75°19′E) by U-532 ( Kriegsmarine) with the loss of five of her 77 crew.[103]
John H. Couch  United States World War II: The Liberty ship was torpedoed by Japanese aircraft off Koli Point, Guadalcanal and set on fire resulting in the ship being burned out. Three crew were killed. She was taken under tow by USS Pawnee ( United States Navy) but capsized and sank on 13 October two miles east of Koli Point.[101]
USS Wahoo  United States Navy World War II: The Gato-class submarine was bombed and sunk in the La Perousé Strait, Sea of Japan by Japanese aircraft with the loss of all 60 crew.

12 October
List of shipwrecks: 12 October 1943
ShipCountryDescription
Ammerland  Germany World War II: The Sperrbrecher was torpedoed and sunk by S-55 ( Soviet Navy) off the North Cape, Norway (70°59′N 26°26′E).[12][104][105]
Keisho Maru  Japan World War II: The transport ship was bombed and sunk at Rabaul, New Guinea during an air raid by the United States Fifth Air Force and Royal Australian Air Force.[106]
Kosei Maru  Japan World War II: The transport ship was bombed and sunk at Rabaul during an air raid by the United States Fifth Air Force and Royal Australian Air Force.[106]
Kurogone Maru  Japan World War II: The cargo ship was bombed and sunk at Rabaul during an air raid by the United States Fifth Air Force and Royal Australian Air Force.[106]
Mishima Maru  Imperial Japanese Navy World War II: The guard ship was bombed and sunk at Rabaul during an air raid by the United States Fifth Air Force and Royal Australian Air Force.[106]
HMML 835  Royal Navy World War II: The Fairmile B motor launch was bombed and sunk at Leros, Greece.[107]
SKR-14  Soviet Navy The auxiliary guard boat ran aground in Yenisey Bay, sinking on 17 October.[108]
Tsukinada Maru  Japan World War II: The cargo ship was damaged in an air attack in Simpson Harbor, Rabaul and beached.[109]
Wakamatsu Maru No. 1  Japan World War II: The cargo ship was bombed and sunk at Rabaul during an air raid by the United States Fifth Air Force and Royal Australian Air Force.[106]

13 October
List of shipwrecks: 13 October 1943
ShipCountryDescription
USS Bristol  United States Navy World War II: The Gleaves-class destroyer was torpedoed and sunk in the Mediterranean Sea off Algiers, Algeria (37°19′N 6°19′E) by U-371 ( Kriegsmarine) with the loss of 52 of her 276 crew. Survivors were rescued by the destroyers USS Trippe and USS Wainwright (both  United States Navy).
Daishin Maru No. 8  Japan World War II: The cargo ship was sunk at Amoy, China during an American air raid.[12]
Kenkoku Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Rasher ( United States Navy).[12]
Marguerite  Germany The ship struck a mine and sank in the Ionian Sea with the loss of at least 544 lives.[12]
Kongo Maru  Imperial Japanese Navy World War II: The auxiliary submarine chaser was sunk at Amoy during an American air raid.[12]
SF 110  Kriegsmarine The Siebel ferry was lost on this date.[110]
Telde  Germany World War II: The transport ship struck a mine and sank off Aalborg, Denmark.[111]
U-402  Kriegsmarine World War II: The Type VIIC submarine was torpedoed and sunk in the Atlantic Ocean (48°56′N 29°41′W) by Grumman TBF Avenger aircraft based on USS Card ( United States Navy) with the loss of all 50 crew.
Wa-101  Imperial Japanese Navy World War II: The Djember-class minesweeper was sunk near Madura, Netherlands East Indies by a mine. Raised, repaired, and returned to service.[112]

14 October
List of shipwrecks: 14 October 1943
ShipCountryDescription
USCGC Dow  United States Navy The patrol was ship lost by grounding off Mayaguez, Puerto Rico. The whole crew survived.[113]
Kozui Maru  Japan World War II: The oiler was torpedoed and sunk in the East China Sea north west of Okinawa (27°35′N 127°30′E) by USS Grayback ( United States Navy). Twenty-one passengers, four gunners and three crew were killed.[114]

15 October
List of shipwrecks: 15 October 1943
ShipCountryDescription
Chicago Maru  Imperial Japanese Army World War II: Convoy No. 105: The Tacoma Maru-class transport was torpedoed and sunk in the South China Sea off the west coast of Formosa (24°30′N 120°26′E) by USS Tullibee ( United States Navy). forty-two troops and eight crew were killed. Survivors were rescued by San Ramon Maru ( Imperial Japanese Navy), Nichiei Maru ( Imperial Japanese Navy) and Gyokurei Maru ( Japan).[115]
Essex Lance  United Kingdom World War II: Convoy ONS 20: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (57°53′N 28°00′W) by U-426 ( Kriegsmarine). All 52 crew were rescued by Accrington ( United Kingdom).[116]
Ghambria  United Kingdom World War II: The Scapa Flow blockship was raised and refloated and then re-sunk in Liverpool Bay for use as sonar target.[117]
James Russell Lowell  United States World War II: Convoy GUS 18: The Liberty ship was torpedoed and damaged in the Mediterranean Sea off the coast of Algeria by U-371 ( Kriegsmarine). All 76 crew were rescued by HMT Southern Sea ( Royal Navy) She was beached at Philippeville where she was declared a constructive total loss. The ship broke in two and sank two weeks later.[118][119]
Merano  Italy World War II: The cargo ship was scuttled in the Adriatic Sea off Cazza Island, Croatia when her convoy was intercepted by the British destroyers HMS Tumult, HMS Ilex and HMS Tyrian (all  Royal Navy). All crew and passengers were rescued by the British ships.[120][121][122]
HMS MTB 636  Royal Navy World War II: The Fairmile D motor torpedo boat was sunk in error by gunfire by HMS MGB 658 ( Royal Navy) off Elba. Seven crew were killed and two more died of wounds.[86][123]
SF 169  Kriegsmarine The Siebel ferry was sunk off Elba by British MTB or by Allied fighter-bombers with the loss of 9 lives.[110][124]
SF 176  Kriegsmarine The Siebel ferry was sunk off Elba by British MTB or by Allied fighter-bombers with the loss of 8 lives.[110][125]
TK-32  Soviet Navy The G-5-class motor torpedo boat was sunk by a mine off Zhelezny Rog in the Black Sea. Four crew were killed.[126][127]

16 October
List of shipwrecks: 16 October 1943
ShipCountryDescription
CHa-31  Imperial Japanese Navy World War II: The CHa-1-class auxiliary submarine chaser was bombed and sunk off New Britain by US aircraft.[128]
LS 5  Kriegsmarine The LS 2-class light schnellboot was lost on this date. (More likely lost the next day aboard Michel ( Kriegsmarine).[129]
Kari  Germany World War II: The cargo ship was torpedoed and sunk in the Aegean Sea off Piraeus, Greece by HMS Torbay ( Royal Navy). She was carrying German soldiers. About 180 of the 500 aboard were killed.[130]
HMS MTB 356  Royal Navy World War II: The Vosper 73 ft-class motor torpedo boat was sunk in the North Sea by gunfire from Kriegsmarine surface vessels off the coast of the Netherlands.[131]
USS Moonstone  United States Navy The naval yacht collided with USS Greer ( United States Navy) in the Atlantic Ocean off the mouth of Delaware′s Indian River (38°30′N 74°06′W) and sank with the loss of one of her 50 crew.
Olimpia  Italy World War II: The cargo ship was scuttled by her German guards in the Adriatic Sea off Mljet Island, Croatia when her convoy was intercepted by the British destroyers HMS Tumult, HMS Ilex and HMS Tyrian (all  Royal Navy). All aboard, 12 Italian and 47 German, were captured.[68][122]
PiLB 60  Kriegsmarine The PiLB 39 Type personnel landing craft was lost on this date.[132]
U-470  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Western Approaches (58°20′N 29°20′W) by Consolidated B-24 Liberator aircraft of 59 and 120 Squadrons, Royal Air Force with the loss of 46 of her 48 crew.
U-533  Kriegsmarine World War II: The Type IXC/40 submarine was depth charged and sunk in the Gulf of Oman by Bristol Bisley aircraft of 244 Squadron, Royal Air Force with the loss of 52 of her 53 crew.[133]
U-844  Kriegsmarine World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean south west of Iceland (58°30′N 27°16′W) by two Consolidated B-24 Liberator aircraft of 59 and 86 Squadrons, Royal Air Force with the loss of all 53 crew.
U-964  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Iceland (57°27′N 27°17′W) by Consolidated B-24 Liberator aircraft of 86 Squadron, Royal Air Force with the loss of 47 of her 50 crew. Survivors were rescued by U-231 ( Kriegsmarine).
UJ-2109  Kriegsmarine World War II: The submarine chaser, a former Hunt-class minesweeper, was sunk at Kalymnos, Greece by HMS Jervis and HMS Penn (both  Royal Navy). Five crew were killed.[40][134]

17 October
List of shipwrecks: 17 October 1943
ShipCountryDescription
Chalkis  Kriegsmarine The Type A Marinefahrprahm was sunk on this date.[18]
LS 4 Esua  Kriegsmarine World War II: The LS 2-class light schnellboot was lost when Michel ( Kriegsmarine) was sunk.[129]
Michel  Kriegsmarine World War II: The auxiliary cruiser was torpedoed and sunk in the Pacific Ocean east of Yokohama, Japan by USS Tarpon ( United States Navy).
Trapani  Italy World War II: The transport was shelled and damaged in the Aegean Sea by HMS Hursley (L84) ( Royal Navy and Miaoulis ( Greece Navy). She put into Kalymnos, where she was sunk the next day by HMS Jervis and HMS Penn (both  Royal Navy).[12]
U-540  Kriegsmarine World War II: The IXC/40 submarine was depth charged and sunk in the Atlantic Ocean east of Cape Farewell, Greenland (58°38′N 31°56′W) by Consolidated B-24 Liberator aircraft of 59 and 120 Squadrons, Royal Air Force with the loss of all 55 crew.[135]
U-631  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south east of Cape Farewell (58°13′N 32°29′W) by HMS Sunflower ( Royal Navy) with the loss of all 54 crew.[136]
U-841  Kriegsmarine World War II: The Type IXC/40 submarine was depth charged and sunk in the Atlantic Ocean east of Cape Farewell (59°57′N 31°06′W) by HMS Byard ( Royal Navy) with the loss of 27 of her 54 crew.[137]

18 October
List of shipwrecks: 18 October 1943
ShipCountryDescription
CH-23  Imperial Japanese Navy World War II: The CH-13-class submarine chaser was bombed and had her bow blown off in St. George's Channel near Rabaul by a North American B-25 Mitchell aircraft of the 500th Bomb Squadron, 345th Bomb Group, United States Army Air Force. She was beached to prevent sinking. Refloated, repaired and returned to service by mid-December.[138]
Elizabeth Hendrik Fisser  Germany World War II: The cargo ship struck a mine and sank in the Adriatic Sea off Dubrovnik, Yugoslavia. The crew was rescued.[12][40]
GK 51 Aghios Minas  Kriegsmarine The guard ship was lost on this date.[139]
MAL 8  Kriegsmarine The MAL 1 type landing fire support lighter was lost on this date.[140]
Taichi Maru  Japan World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean south of Honshu by USS Lapon ( United States Navy).[141]
Tairin Maru  Imperial Japanese Army World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean (00°22′N 143°23′E) by USS Silversides ( United States Navy). Two gunners, one watchman, and one crewman were killed.[142]

19 October
List of shipwrecks: 19 October 1943
ShipCountryDescription
Aversa  Germany World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea by HMS Ultor ( Royal Navy).[12]
Delisle  United States World War II: Convoy WB 65: The cargo ship struck a mine and sank in the Atlantic Ocean 15 nautical miles (28 km) off St. John's, Newfoundland (47°19′N 52°27′W). All 42 crew were rescued by HMCS Miscou ( Royal Canadian Navy).[143]
No. 72  Soviet Navy The Project 1124 armored motor gunboat was lost on this date.[144]
Penolver  United Kingdom World War II: Convoy WB 65: The cargo ship struck a mine and sank in the Atlantic Ocean 15 nautical miles (28 km) off St. John's (47°19′N 52°27′W) with the loss of 26 of her 40 crew. Survivors were rescued by HMCS Miscou ( Royal Canadian Navy).[145]
Sinfra  Germany World War II: The transport ship was sunk in the Aegean Sea by Bristol Beaufighter aircraft of the Royal Air Force and North American B-25 Mitchell aircraft of the United States Army Air Force with the loss of 1,857 of the 2,593 people on board.[12]

20 October
List of shipwrecks: 20 October 1943
ShipCountryDescription
Cavalla  Kriegsmarine The Type A Marinefahrprahm was sunk on this date.[18]
F 330  Kriegsmarine The Type A Marinefahrprahm was sunk on this date.[18]
Gulf Bell  United States The Tanker was damaged in a collision with sister ship Gulfland ( United States) off Florida. There was an explosion on Gulfland and both ships caught fire. The ship was beached, but later was towed away. 88 of 116 crewmen between the 2 ships died.[146]
Gulfland  United States The Tanker was damaged in a collision with sister ship Gulf Bell ( United States) off Florida. There was an explosion and both ships caught fire. 88 of 116 crewmen between the 2 ships died. The abandoned ship drifted for 53 days eventually grounding off Hobe Sound, Florida. She was scuttled in 15 feet of water. A salvage attempt was made in 1944 but she broke in two, with her bow sinking again in 28 feet of water at (26°56′N 80°01′W), her stern was towed away.[147][148][149]
Nagaragawa Maru  Japan World War II: The cargo ship was bombed and sunk off Dutch New Guinea, Dutch East Indies (00°19′S 132°24′E).[150]
Sana Maru  Japan World War II: The cargo ship was torpedoed and sunk in Bandon Bay, French Indochina (12°36′N 109°30′E) by USS Kingfish ( United States Navy).[151][152]
U-378  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (47°40′N 28°27′W) by Grumman TBM Avenger and Grumman F4F Wildcat aircraft based on USS Core ( United States Navy) with the loss of all 48 crew.[153][154]

21 October
List of shipwrecks: 21 October 1943
ShipCountryDescription
HMCS Chedabucto  Royal Canadian Navy The Bangor-class minesweeper collided in the St Lawrence River with Lord Kelvin ( United Kingdom) and sank with the loss of one of her 72 crew.[31]
Goshu Maru  Japan World War II: The troopship was torpedoed and sunk in the Pacific Ocean south east of Ulithi by USS Steelhead ( United States Navy).[12]
USS Murphy  United States Navy World War II: While escorting a convoy, the Benson-class destroyer was in collision with Bulkoil ( United Kingdom) off the coast of New York/New Jersey and was cut in two. The bow section sank with the loss of 36 of her 265 crew. The stern section was repaired and returned to service with a new bow section.
Saltwick  United Kingdom World War II: Convoy MKS 28: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cape Ténès, Algeria by Junkers Ju 88 aircraft of III Staffeln, Kampfgeschwader 26, Luftwaffe.[12]
Tivives  United States World War II: Convoy MKS 28: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cape Ténès by Junkers Ju 88 aircraft of III Staffeln, Kampfgeschwader 26.[12] A gunner and a crewman were killed. Survivors, 24 gunners, a passenger, six members of the Convoy Commodore's staff, and 47 crewmen, were rescued by HMS La Malouine ( Royal Navy).[155][156]
U-431  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Mediterranean Sea off Algiers, Algeria by a Vickers Wellington aircraft of 179 Squadron, Royal Air Force with the loss of all 52 crew.[157]

22 October
List of shipwrecks: 22 October 1943
ShipCountryDescription
Adrias  Hellenic Navy
Adrias in December 1943

World War II: The Hunt-class destroyer struck a mine in the Aegean Sea off Kalymnos, losing her bow. She was beached at Gümüşlük, Turkey (37°02′N 27°06′E). 21 crewmen killed and 21 wounded. She was refloated 1 December. Proceeded on her own power to Egypt, the ship was later declared a total constructive loss and not repaired.[158]

Awata Maru  Imperial Japanese Navy World War II: The Awata Maru-class transport ship was torpedoed in the East China Sea off Keelung, Formosa (26°32′N 125°05′E) by USS Grayback ( United States Navy). She exploded and sank with 1,087 troops of the 17th Infantry Division and 223 crew killed. Survivors, 76 troops and 88 crew, were rescued by Maikaze and Nowaki both ( Imperial Japanese Navy).[159][160]
F 541  Kriegsmarine World War II: The Type C Marinefährprahm was torpedoed in the Mediterranean Sea east of Imperia, Italy by HMS Unseen ( Royal Navy) with her aft section sinking and the forward section being towed and beached near Oneglia by F 484 ( Kriegsmarine) after rescuing seven wounded survivors. Twelve crewmen were killed.[18][161]
HMS Hurworth  Royal Navy World War II: The Hunt-class destroyer struck a mine and sank in the Aegean Sea (36°59′N 27°06′E) off Kalymnos with the loss of at least six crew. Eighty-five crew were rescued.[31]
RFA Litiopa  Royal Fleet Auxiliary World War II: The tanker was torpedoed and damaged in the Atlantic Ocean (6°18′N 11°55′W) by U-68 ( Kriegsmarine). She sank the next day. All 35 crew survived, some of them were rescued by HMS Snowdrop ( Royal Navy) while others reached land in their lifeboats.[162][163]
Martin Wallner  Germany World War II: The tugboat was sunk by a mine in the Black Sea.[164]
HMT Orfasy  Royal Navy World War II: The naval trawler was torpedoed and sunk in the Atlantic Ocean (5°58′N 11°30′W) 185 miles southeast of Freetown, Liberia by U-68 ( Kriegsmarine) with the loss of all 30 crew.[162][165]
T 157  Kriegsmarine World War II: The torpedo recovery ship, a former V150-class torpedo boat, struck a mine and sank in the Baltic Sea off Gdańsk.[111][166]

23 October
List of shipwrecks: 23 October 1943
ShipCountryDescription
Campos  Brazil World War II: The cargo liner was torpedoed and sunk in the South Atlantic (25°07′S 45°40′W) by U-170 ( Kriegsmarine) with the loss of twelve of the 63 people aboard.[167]
HMS Charybdis  Royal Navy World War II: The Dido-class cruiser was torpedoed and sunk in the Bay of Biscay off Ouessant, Finistère, France (48°59′N 3°39′W) by TA23 and TA27 (both  Kriegsmarine) with the loss of 452 crew.[168]
HMS Cromarty  Royal Navy World War II: The Bangor-class minesweeper was sunk by a mine in the Straits of Bonifacio.[169]
Faneromeni  Greece World War II: The cargo ship was torpedoed and sunk in the Indian Ocean north west Madagascar by I-37 ( Imperial Japanese Navy). One crew was killed, 37 survived.[170][171]
James Iredell  United States World War II: The Liberty ship was struck by three bombs dropped by German aircraft at Naples, Italy, and burned or 64 hours. She was repaired and later sunk as a blockship off Omaha Beach on 8 June 1944.
Juminda  Kriegsmarine World War II: The minelayer was torpedoed and sunk in the Tyrrhenian Sea off Santo Stefano, Italy by USS PT-206, USS PT-212 and USS PT-216 (all  United States Navy).[12]
Kyowa Maru  Japan World War II: The transport ship was bombed and sunk in the Pacific Ocean north west of Bougainville Island by United States Army Air Force aircraft.[12]
HMS LCI(L) 309  Royal Navy World War II: The landing craft infantry (large) was bombed and sunk by a German aircraft in the Bay of Biscay (47°10′N 13°55′W). Four crew were killed and another died of his wounds. LCI(L) 185 rescued 18 survivors.[86][172][173]
HMS Limbourne  Royal Navy World War II: The Hunt-class destroyer was attacked off Ouessant by TA22 ( Kriegsmarine) and severely damaged. She was scuttled by gunfire from HMS Rocket ( Royal Navy).[174]
Tanais  Soviet Union World War II: The coaster was torpedoed and sunk in the Black Sea off Poti (42°22′N 41°35′E) by U-23 ( Kriegsmarine) with the loss of 11 of her 21 crew.[175]
Taranto  Kriegsmarine World War II: The Magdeburg-class cruiser was bombed and sunk by Allied aircraft. Later raised, and sunk once more in September 1944. Scrapped in 1946–47.
U-274  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Iceland (57°14′N 27°50′W) by HMS Duncan, HMS Vidette (both  Royal Navy) and a B-24 Liberator of 224 Squadron, Royal Air Force.[176]

24 October
List of shipwrecks: 24 October 1943
ShipCountryDescription
HMS Eclipse  Royal Navy World War II: The E-class destroyer struck a mine and sank in the Aegean Sea east of Kalymnos, Greece (37°01′N 27°11′E) with the loss of 119 of her 145 crew and 134 troops.
Hino Maru  Imperial Japanese Navy World War II: The auxiliary gunboat was bombed and sunk in the Pacific Ocean south west of Rabaul, New Britain by Consolidated B-24 Liberator aircraft of the United States Army Air Force.[12]
Johore Maru  Imperial Japanese Army World War II: Convoy O-006: The Nagoya Maru-class transport ship was torpedoed and sunk in the Pacific Ocean by USS Silversides ( United States Navy). Seventy-seven passengers and seven crew were killed.[142]
Kazan Maru  Imperial Japanese Army World War II: Convoy O-006: The cargo ship was torpedoed and sunk in the Pacific Ocean (02°30′N 144°44′E) by USS Silversides ( United States Navy). Four guards and three crew were killed.[142]
Mochizuki  Imperial Japanese Navy World War II: The Mutsuki-class destroyer was bombed and sunk in the Solomon Sea 90 miles south south west of Rabaul (05°42′S 151°40′E) by United States Navy Consolidated PBY Catalina aircraft. Ten crew were killed. Survivors were rescued by Uzuki ( Imperial Japanese Navy).[177]
Muraviev  Soviet Union World War II: The water tanker was destroyed by exploding cargo while unloading in the Port of Krasnovod. Ten crewmen killed.[178]
Orlyonok  Soviet Union World War II: The cargo ship was destroyed by exploding cargo while unloading in the Port of Krasnovod. Unknown if it was her cargo or that of Osetin ( Soviet Union). Three crewmen killed.[178]
Osetin  Soviet Union World War II: The cargo ship was destroyed by exploding cargo while unloading in the Port of Krasnovod. Unknown if it was her cargo or that of Orlyonok ( Soviet Union). 14 crewmen killed.[178]
Rab  Kriegsmarine World War II: The coaster was sunk by British aircraft near Crkvice, Yugoslavia. Raised by Yugoslavia in March, 1945, repaired and returned to service.[179]
Siranger  Norway World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (0°00′N 39°27′W) by U-155 ( Kriegsmarine). All 51 people aboard survived.[180]
Tennan Maru  Imperial Japanese Navy World War II: Convoy O-006: The oiler was torpedoed and sunk in the Pacific Ocean by USS Silversides ( United States Navy). Five passengers and 42 crew were killed.[142]
U-566  Kriegsmarine World War II: The Type VIIC submarine was depth charged and damaged in the Atlantic Ocean north west of the Azores, Portugal by a Vickers Wellington aircraft of 179 Squadron, Royal Air Force. She was consequently scuttled at 41°12′N 9°31′W. All 49 crew survived.
UJ 1403 Mecklenburg  Kriegsmarine World War II: The naval trawler/submarine chaser collided with the fishing trawler Anne-Alice ( France) and sank in the Bay of Biscay off Belle-Île, Morbihan, France. Her captain claimed she had struck a mine. She was later raised, repaired and returned to service.[12]

25 October
List of shipwrecks: 25 October 1943
ShipCountryDescription
Nissho Maru  Japan World War II: The tanker was torpedoed and sunk in the Philippine Sea by USS Hoe ( United States Navy).[181]
RD 22  Regia Marina World War II: The RD-class minesweeper was sunk by a mine off Brindisi. All 24 crew were killed.[68][182]
S 63 and S 88  Kriegsmarine World War II: The Schnellboote were torpedoed and sunk in the North Sea off Cromer, Norfolk, United Kingdom by HMMGB 603 and HMMGB 607 (both  Royal Navy). Alternatively, S 63 was rammed and sunk by HMS Mackay ( Royal Navy).[12][31][183]
unnamed  Soviet Union World War II: The fishing vessel was shelled and sunk by U-23 ( Kriegsmarine) in the Black Sea.[184]
HMT William Stephen  Royal Navy World War II: The naval trawler was torpedoed and sunk in the North Sea off Cromer by S-74 ( Kriegsmarine).[31]

26 October
List of shipwrecks: 26 October 1943
ShipCountryDescription
Agios Konstantinos  Greece World War II: The caique was shelled and sunk in the Mediterranean Sea (38°06′N 25°22′E) by HMS Shakespeare ( Royal Navy).[185]
Bajkal  Kriegsmarine The auxiliary river minesweeper was sunk on this date.[186]
Dover Maru  Japan World War II: The cargo ship was bombed and sunk in the Indian Ocean south of Yangon, Burma by United States Tenth Air Force aircraft.[12]
Hachiman Maru  Japan World War II: The cargo ship was bombed and sunk in the South China Sea off Hainan, China by North American B-25 Mitchell aircraft of the United States Fourteenth Air Force.[12]
Hokuzan Maru  Japan World War II: The cargo ship was bombed and sunk off Kiungshan, China (20°05′N 110°25′E) by United States Army Air Force aircraft.[187]
James Longstreet  United States The Liberty ship was driven ashore at Sandy Hook, Eastham, Massachusetts in a gale and was wrecked. She was subsequently refloated and towed to New York City, where she was dismantled.[188][118]
HMS ML 579  Royal Navy World War II: The Fairmile B motor launch was bombed and sunk by German aircraft near Leros, Greece. Three crewmen were killed and one died of his wounds.[189][190]
MS-15  Regia Marina World War II: The MS-11-class E-boat was sunk by German aircraft at Leros, Greece.[88]
Shinwa Maru No. 3  Imperial Japanese Army World War II: The transport ship was bombed and sunk in the South China Sea off Hainan by North American B-25 Mitchell aircraft of the United States Fourteenth Air Force.[12]
Shozan Maru  Japan World War II: The cargo ship struck a mine and sank in the South China Sea off Haiphong, French Indochina.[12]
HMS Tien Hsing  Royal Navy The tug hit the Abu Galawa Reef in the Red Sea off Egypt and sank.[191][192]
Yamatogawa Maru  Japan World War II: The transport ship was bombed and sunk in the South China Sea off Hainan by North American B-25 Mitchell aircraft of the United States Fourteenth Air Force.[12]

27 October
List of shipwrecks: 27 October 1943
ShipCountryDescription
Padua  Portugal Red Cross: World War II: The cargo ship, chartered by the International Committee of the Red Cross struck a mine and sank in the Mediterranean Sea off Marseille, Bouches-du-Rhône, France with the loss of six crew.[193][194]
Nanman Maru  Japan World War II: Convoy FU-607: The ship was torpedoed and sunk in the Pacific Ocean (12°02′N 134°28′E) by USS Flying Fish ( United States Navy). One crew member was killed.[195][196]
Tarbya  Kriegsmarine The Type A Marinefahrprahm was sunk on this date.[18]

28 October
List of shipwrecks: 28 October 1943
ShipCountryDescription
A-3  Soviet Navy World War II: The A-class submarine was sunk in the Black Sea off Eutaporia by UJ 117 Rila ( Kriegsmarine).[12]
Congella  United Kingdom World War II: The cargo ship was shelled and sunk in the Indian Ocean north west of Addu Atoll (01°02′N 71°14′E) by I-10 ( Imperial Japanese Navy). Three Gunners and 25 crewmen were killed, her radio operator was taken as a prisoner of war. Thirty-seven survivors were rescued by HMS Okapi ( Royal Navy) and two Consolidated PBY Catalina aircraft of the Royal Air Force.[197]
F 303  Kriegsmarine World War II: The Type B Marinefährprahm was scuttled at Genitshesk, Soviet Union.[12]
F 492  Kriegsmarine World War II: The Type C2 Marinefährprahm was scuttled at Genitshesk.[12]
F 493  Kriegsmarine World War II: The Type C2 Marinefährprahm was scuttled at Genitshesk.[12]
F 577  Kriegsmarine World War II: The Type C2 Marinefährprahm was scuttled at Genitshesk.[12]
HMS LCT 115  Royal Navy The LCT-1-class landing craft tank was lost in the Mediterranean Sea.[198]
U-220  Kriegsmarine World War II: The Type X submarine was depth charged and sunk in the Atlantic Ocean (48°53′N 33°30′W) by Grumman TBM Avenger and Grumman F4F Wildcat aircraft based on USS Block Island ( United States Navy) with the loss of all 56 crew.[199][200]
USS YP-88  United States Navy The yard patrol boat ran aground and sank off Cape Amchitka, Amchitka Island, Alaska Territory.[201]

29 October
List of shipwrecks: 29 October 1943
ShipCountryDescription
Ingeborg  Germany World War II: The cargo ship was torpedoed and sunk in the Aegean Sea west of Stampalia, Greece (36°33′N 25°54′E) by HMS Unsparing ( Royal Navy).[12][202]
Kuybyshev  Soviet Union The cargo ship was lost with all 41 hands in the Caspian Sea from unknown causes between Nevashehr, Iran and Makhachkala.[178]
MAL 1  Kriegsmarine The MAL 1 type landing fire support lighter was scuttled by her crew in Henichesk, on the Azov Sea.[140][203]
MAL 3  Kriegsmarine The MAL 1 type landing fire support lighter was scuttled by her crew in Henichesk, on the Azov Sea.[140][203]
MAL 9  Kriegsmarine The MAL 1 type landing fire support lighter was scuttled by her crew in Henichesk, on the Azov Sea.[140][203]
MAL 10  Kriegsmarine The MAL 1 type landing fire support lighter was scuttled by her crew in Henichesk, on the Azov Sea.[140][203]
MAL 11  Kriegsmarine The MAL 1 type landing fire support lighter was scuttled by her crew in Henichesk, on the Azov Sea.[140][203]
U-282  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south east of Iceland (55°28′N 31°57′W) by HMS Duncan, HMS Sunflower and HMS Vidette (all  Royal Navy) with the loss of all 48 crew.[204]

30 October
List of shipwrecks: 30 October 1943
ShipCountryDescription
SK 318  Soviet Navy The BMO type armored motor anti-submarine boat was lost on this date.[205]
TK-75 and TK-134  Soviet Navy World War II: The G-5-class motor torpedo boats were shelled and sunk in the Baltic Sea by German minesweepers.[206]
No. 171  Soviet Navy The G-5-class motor torpedo boat was lost on this date.[126]

31 October
List of shipwrecks: 31 October 1943
ShipCountryDescription
HMCS Chedabucto  Royal Canadian Navy World War II: The Bangor-class minesweeper sank in the St. Lawrence River in a collision with Lord Kelvin ( United Kingdom), with the loss of one of her officers.[207]
John Banvard  United States The Liberty ship came ashore at Terceira, Azores, Portugal and was declared a constructive total loss.[208]
Hallfried  Norway World War II: Convoy MKS 28: The cargo ship was torpedoed and sunk in the Atlantic Ocean (44°00′N 21°30′W) by U-262 ( Kriegsmarine) with the loss of 30 of her 33 crew. Survivors were rescued by HMS Wrestler ( Royal Navy).[209]
Heimdal  Kriegsmarine World War II: The fisheries protection vessel was sunk at Copenhagen, Denmark due to sabotage by the Danish Resistance.[12]
Koryo Maru  Japan World War II: The tanker was torpedoed and sunk in the Pacific Ocean off Borneo by USS Rasher ( United States Navy).[87]
No. 114  Soviet Navy The No. 41 armored motor gunboat was lost on this date.[144]
No. 1012  Soviet Navy The MO-4-class motor anti-submarine boat was lost on this date.[66]
New Columbia  United Kingdom World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (4°25′N 5°03′E) by U-68 ( Kriegsmarine). All 84 crew were rescued by Conakrian ( United Kingdom).[210]
SKA-088  Soviet Navy World War II: The MO-3-class patrol ship was torpedoed and sunk in the Black Sea off Gagra by U-24 ( Kriegsmarine).[211]
U-306  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean north east of the Azores, Portugal (46°19′N 20°44′W) by HMS Geranium and HMS Whitehall (both  Royal Navy) with the loss of all 51 crew.[212]
U-584  Kriegsmarine World War II: The Type VIIC submarine was sunk in the Atlantic Ocean (49°14′N 31°55′W) by three Grumman TBM Avenger aircraft based on USS Card ( United States Navy) with the loss of all 53 crew.[49][213]
U-732  Kriegsmarine World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean (35°54′N 5°52′W) by HMS Douglas, HMT Imperialist and HMT Loch Osaig (all  Royal Navy) with the loss of 31 of her 49 crew.[12][214]
Ujigawa Maru  Japan World War II: The transport ship was bombed and sunk in the Pacific Ocean off Rabaul, New Guinea by United States Army Air Force aircraft.[12]

Unknown date
List of shipwrecks: Unknown date 1943
ShipCountryDescription
Althea  United States The 12-gross register ton, 63.3-foot (19.3 m) motor cargo vessel sank at Unalakleet, Territory of Alaska.[215]
USS Dorado  United States Navy World War II: The Gato-class submarine left New Haven, Connecticut on 6 October for the Panama Canal and was not heard from again. Probably struck a mine and sank in the Caribbean Sea on 13 October with the loss of all 60 crew.[12]
F 491  Kriegsmarine The Type C Marinefahrprahm was sunk.[18]
HMS LCE 1  Royal Navy The landing craft, emergency repair was sunk.[216]
HMS LCE 9  Royal Navy The landing craft, emergency repair was sunk.[216]
HMS LCI(L) 309  Royal Navy The LCI-1-class landing craft infantry was lost.[217]
HMS LCM 232  Royal Navy The landing craft mechanized was lost.[218]
HMS LCM 545  Royal Navy The landing craft mechanized was lost.[218]
HMS LCM 938  Royal Navy The landing craft mechanized was lost.[218]
HMS LCM 1044  Royal Navy The landing craft mechanized was lost.[218]
HMS LCM 1165  Royal Navy The landing craft mechanized was lost.[218]
HMS LCM 1182  Royal Navy The landing craft mechanized was lost.[218]
M-172  Soviet Navy World War II: The M-class submarine was lost after leaving her base on 1 October. Probably lost to a mine off Verangerfjord, Norway.[219]
M-174  Soviet Navy World War II: The M-class submarine was lost after leaving her base on 14 October. Probably lost to a mine off Verangerfjord, Norway.[220]
HMS ML 1015  Royal Navy The Harbour Defence Motor Launch foundered in a storm in the Mediterranean Sea.[221]
Shch-403  Soviet Navy World War II: The Shchuka-class submarine was lost after leaving her base on 2 October; probably to a mine off Tanafjord, Norway.[222]
Senji  Italy World War II: The coaster was sunk by Allied aircraft at Starigrad. Raised by her Yugoslav owners, repaired, and returned to service in 1947.[223]
HMS Trooper  Royal Navy World War II: The T-class submarine probably struck a mine and sank in the Aegean Sea off Leros, Greece sometime between 14 and 17 October. She was last sighted on 14 October by the schooner LS 8 ( Royal Navy) off Alinda Bay and failed to return to base on 17 October.[224]
HMS Usurper  Royal Navy World War II: The U-class submarine was possibly sunk in the Gulf of Genoa by UJ 2208 ( Kriegsmarine) on 4 October or sunk by a mine around this date. All 46 crew were lost.[12][225]
U-420  Kriegsmarine World War II: The Type VIIC submarine disappeared on patrol in the Atlantic Ocean on or after 20 October with the loss of all 49 crew. Cause unknown.[226]
Vienti  Finland World War II: The cargo ship was sunk at Bremen, Germany. She was salvaged in 1944, repaired, and entered German service as Kommerzienratsieg.[227]

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Ship events in 1943
Ship launches: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Ship commissionings: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Ship decommissionings: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
Shipwrecks: 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948
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