List of shipwrecks in July 1944

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

1 July

 * HMS ML 265 (ML265) : World War II: The Fairmile B motor launch burned at Freetown.
 * HMS ML 287 (ML287) : World War II: The Fairmile B motor launch burned at Freetown.
 * HMCS MTB 460 (MTB460) World War II: The BPB 72'-class Motor Torpedo Boat was sunk by a mine off Normandy.
 * SS Taiun Maru No.2 (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Tang (SS-306).
 * SS Takatori Maru No.1 (🇯🇵 Japan): World War II: The tanker was torpedoed and sunk in the East China Sea by USS Tang (SS-306).

2 July

 * SS Bodegraven (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi south of Monrovia, Liberia (4.23333°N, -11°W) by GS U-547 with the loss of nine of the 111 people on board. Her captain was taken on board U-547 as a prisoner of war. The other survivors were rescued by warships based at Dakar, French West Africa or reached land in their lifeboats.
 * SS Empire Broadsword (🇬🇧 United Kingdom): World War II: The Type C1-S-AY-1 Infantry landing ship struck a mine and sank in the English Channel off Normandy, France (49.41667°N, -0.9°W) with the loss of two of her 72 crew. Survivors were rescued by USS PC-1225.
 * SS Jean Nicolet (🇺🇸 United States): World War II: The Liberty ship was torpedoed and sunk in the Pacific Ocean off the Maldive Islands (-3.46667°N, 74.26667°W) by JAPANESE SUBMARINE I-8 . Ninety-five crew were forced aboard the submarine tied and beaten with some sixty dying. Others died when the submarine submerged on approach of a plane. Five had refused to board. Survivors were rescued by British ships.
 * HMS MMS 1019 (FY1019) : World War II: The MMS-class minesweeper was sunk by a mine off Cherbourg.
 * GS U-543 : World War II: The Type IXC/40 submarine was depth charged, torpedoed and sunk in the Atlantic Ocean south west of Tenerife, Canary Islands, Spain (25.56667°N, -21.6°W) by Grumman TBF Avenger aircraft based on USS Wake Island (CVE-65) with the loss of all 58 crew.
 * USS YMS-350 : World War II: The YMS-1-class minesweeper struck a mine and sank off Utah Beach, Normandy (49.63333°N, -1.58333°W).

3 July

 * SS Dairen Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea off Amami Shima (28.88333°N, 129.85°W) by USS Sturgeon (SS-187).
 * SS Gyoyo Maru (🇯🇵 Japan): World War II: The cargo liner was torpedoed and sunk in the East China Sea by USS Seahorse (SS-304).
 * SS Kamo Maru (🇯🇵 Japan): World War II: The cargo liner was torpedoed and sunk in the East China Sea (32.41667°N, 128.83333°W) by USS Tinosa (SS-283) . 415 troops, 3 other passengers, 74 crewmen and 7 Gunners killed.
 * SS Konzan Maru : World War II: The Tanker (A.K.A. Konsan Maru)was torpedoed and sunk in the East China Sea (32.41667°N, 128.83333°W) by USS Tinosa (SS-283) . 23 crewmen killed.
 * SS Kyodo Maru No.36 (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea by USS Lapon (SS-260).
 * SS Nitto Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Seahorse (SS-304).
 * SS Tairin Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Ryukyu Islands by USS Sturgeon (SS-187).
 * GS U-154 (1941) : World War II: The Type IX submarine was depth charged and sunk in the Atlantic Ocean (34°N, -19.5°W) by USS Frost (DE-144), USS Inch (DE-146) and aircraft based on USS Croatan (CVE-25) (all ) with the loss of all 57 crew.

4 July

 * SS Asukazan Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Tang (SS-306) . There were some survivors, who were rescued by Japanese fishing boats.
 * JAPANESE SUBMARINE CHASER CH-16 : World War II: Convoy 3628: The CH-13-class submarine chaser was bombed and sunk off Chichi Jima(27°N, 140.83333°W) by U.S. Navy aircraft.
 * JAPANESE SUBMARINE I-10 : World War II: The Type A1 submarine was sunk in the Pacific Ocean (15.43333°N, 147.8°W) by USS David W. Taylor (DD-551) and USS Riddle (DE-185) (both ).
 * SS Kittanning (🇺🇸 United States): World War II: The Type T2-SE-A2 tanker was torpedoed and damaged in the Caribbean Sea off Cristóbal, Panama (9.91667°N, -79.45°W) by GS U-539 . All 74 crew abandoned ship before U-539 fired a coup-de-grâce which failed to sink her. The crew were rescued by USCGC Marion (WPC-145) : The ship was later towed to Balboa, Panama for temporary repairs. She was then towed to Galveston, Texas, United States for permanent repairs to be effected.
 * SS Kyodo Maru No.28 (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Seahorse (SS-304).
 * GERMAN MINESWEEPER M-469 : World War II: The minesweeper was torpedoed and sunk off Vlieland, the Netherlands.
 * SS Ringen (1917) (🇳🇴 Norway): World War II: Convoy ETC 26: The cargo ship struck a mine and was damaged in the English Channel off the Isle of Wight, United Kingdom with the loss of one of her 30 crew. Survivors were rescued by HMS Fernie (L11) . Ringen was torpedoed and sunk the next day by GS U-763
 * USS S-28 (SS-133) : World War II: The S-class Submarine failed to surface after a training dive off Pearl Harbor.
 * JAPANESE MINELAYER Sarushima : World War II: Convoy 3628: The Natsushima-class minelayer was bombed and sunk off Chichi Jima(27.1°N, 142.16667°W) by U.S. Navy aircraft.
 * SS Shima Maru (🇯🇵 Japan): World War II: Convoy 3628: The Transport was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * SS Shozui Maru (🇯🇵 Japan): World War II: Convoy 3628: The transport was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * JAPANESE AUXILIARY NETLAYER Taiko Maru : World War II: Convoy 3628: The auxiliary Netlayer was bombed and sunk off Onagawa Retto(28.33333°N, 141.83333°W) by U.S. Navy aircraft.
 * SS Tatsuei Maru (🇯🇵 Japan): World War II: Convoy 3628: The transport was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * JAPANESE AUXILIARY MINESWEEPER Toshi Maru No. 5 : World War II: Convoy 3628: The auxiliary Minesweeper was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * NO.101 CLASS LANDING SHIP Transport No. 103 : World War II: The  was bombed and sunk off Chichi Jima(27.1°N, 140.15°W) by U.S. Navy aircraft.
 * NO.101 CLASS LANDING SHIP Transport No. 130 : World War II: The  was bombed and sunk off Iwo Jima(24.78333°N, 141.33333°W) by U.S. Navy aircraft.
 * SS Unyo Maru (🇯🇵 Japan): World War II: Convoy 3628: The Transport was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * JAPANESE MINESWEEPER No.25 : World War II: Convoy 3628: The was bombed and sunk off Chichi Jima(28.58333°N, 141.06667°W) by U.S. Navy aircraft.
 * SS Yamaoka Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea by USS Tang (SS-306), which rescued one survivor.

5 July

 * SS Dori Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the East China Sea off Dairen, China by USS Tang (SS-306).
 * HMT Ganilly (T376) : World War II: The naval trawler was torpedoed and sunk in the English Channel off Utah Beach, Manche, France (49.6°N, -0.95°W) by GS U-390 with the loss of 39 crew.
 * SS Glendinning (🇬🇧 United Kingdom): World War II: Convoy ETC 27: The cargo ship was torpedoed and sunk in the English Channel off Cap d'Antifer, Seine Maritime, France (50.53333°N, -0.36667°W) by GS U-953 with the loss of four of her 33 crew. Survivors were rescued by HMML-250.
 * HMS MTB 666 (MTB666) : World War II: The Fairmile D class Motor Torpedo Boat was shelled and sunk by Kriegsmarine surface ships off Ijmuiden, Netherlands.
 * Noreen Mary (🇬🇧 United Kingdom): World War II: The trawler was shelled and sunk in the North Sea (58.5°N, -5.38333°W) by GS U-247 with the loss of eight of her ten crew.
 * SS Shanmai Maru (🇯🇵 Japan): World War II: The cargo liner was torpedoed and sunk in the Pacific Ocean off the Kuril Islands by USS Sunfish (SS-281).
 * GS U-233 : World War II: The Type XB submarine was depth charged in the Atlantic Ocean (42.26667°N, -59.81667°W) by USS Baker (DE-190) . She surfaced and was rammed and sunk by USS Thomas (DE-102) with the loss of 33 of her 61 crew.
 * GS U-390 : World War II: The Type VIIC submarine was depth charged and sunk in the Baie de la Seine (49.86667°N, -0.8°W by HMS Tavy (K272) and HMS Wanderer (D74) (both ) with the loss of 48 of her 49 crew. The survivor was rescued by HMS Wanderer.
 * GS U-586 : World War II: The Type VIIC submarine was bombed and sunk at Toulon, Var, France by Consolidated B-24 Liberator aircraft of the United States Army Air Forces.
 * GS U-642 : World War II: The Type VIIC submarine was sunk in the Mediterranean Sea off Toulon (43.11667°N, 5.91667°W) by Consolidated B-24 Liberator aircraft of the United States Army Air Forces.
 * JAPANESE DESTROYER Usugumo : World War II: The Fubuki-class destroyer was torpedoed and sunk in the Sea of Okhotsk (47.71667°N, 147.91667°W) by USS Skate (SS-305) . 267 crewmen killed, 49 rescued.

6 July

 * HMS Cato (J16) : World War II: The Auk-class minesweeper was torpedoed and sunk off Normandy France (49.4°N, -0.28333°W)  by a Kriegsmarine "Neger" manned torpedo device.
 * JAPANESE DESTROYER Hokaze : World War II: The Minekaze-class destroyer was torpedoed and sunk in the Celebes Sea (3.4°N, 125.63333°W) by USS Paddle (SS-263).
 * MS Sabaudia (🇩🇪 Germany): The troopship was bombed and sunk at Vallone di Zaule, Italy by Royal Air Force aircraft.
 * HMS Magic (J400) : World War II: The Auk-class minesweeper  was torpedoed and sunk off Normandy France (49.41667°N, -0.28333°W)  by a Kriegsmarine "Neger" manned torpedo device.
 * SS Setsuzan Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea 100 nmi east of Ningpo, China (29.98333°N, 122.88333°W) by USS Sealion (SS-315) . 1 crewman killed.
 * HMS Trollope (K575) : World War II: The Captain-class frigate was torpedoed and damaged in the English Channel off La Poterie-Cap-d'Antifer, Haute-Normandie, France by a Kriegsmarine torpedo boat with the loss of 63 crew. She was not repaired.

7 July

 * SS Esso Harrisburg (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Caribbean Sea 200 nmi north west of Aruba, Netherlands Antilles (13.43333°N, -72.18333°W) by GS U-516 with the loss of eight of her 72 crew. Survivors were rescued by HNLMS Konigin Wilhelmina  and USS SC-1299.
 * HMS FDT 216 (LST216) : World War II: The LST Mk 2-class Fighter Direction Tender was torpedoed and sunk off Cherbourg by German aircraft.
 * HMCS MTB 463 (MTB463) World War II: The BPB 72 foot-class Motor Torpedo Boat was sunk by a mine off Normandy.
 * JAPANESE DESTROYER Tamanami : World War II: The Yūgumo-class destroyer was torpedoed and sunk in the Philippine Sea 180 nmi south west of Manila, Philippines (13.91667°N, 118.5°W) by USS Mingo (SS-261) with the loss of all 228 crew.
 * GS U-678 : World War II: The Type VIIC submarine was depth charged and sunk in the English Channel south west of Brighton, East Sussex, United Kingdom (50.53333°N, -0.38333°W) by HMCS Kootenay (H75), HMCS Ottawa (H31) (both ) and HMS Statice (K281) with the loss of all 52 crew.
 * Uløy (🇳🇴 Norway): World War II: The fishing cutter was bombed and sunk off Hamningberg, Finnmark with the loss of fifteen lives.

8 July

 * SS Empire Brutus (🇬🇧 United Kingdom): World War II: The cargo ship struck a mine in the English Channel and was damaged. She was beached on Juno Beach off Arromanches, Basse-Normandie, France. Later refloated and towed to Middlesbrough Yorkshire for repairs.
 * GERMAN MINESWEEPER M-264 : World War II: The minesweeper was sunk by rocket-armed aircraft west of Heligoland, Germany.
 * SS Miranda (1916) (🇩🇪 Germany): World War II: The cargo ship was bombed and sunk by aircraft off the Elbe, Germany.
 * SS Matsu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the coast of Japan by USS Tautog (SS-199) with the loss of all but one crew.
 * GS U-243 : World War II: The Type VIIC submarine was depth charged and sunk in the Bay of Biscay west of Nantes, Loire-Atlantique, France (47.1°N, -6.66667°W) by a Short Sunderland aircraft of 10 Squadron, Royal Australian Air Force with the loss of eleven of her 49 crew.

9 July

 * SS Hokoriu Maru (🇯🇵 Japan): World War II: The coaster was shelled and sunk in the Pacific Ocean off the coast of Japan by USS Tautog (SS-199) . Six crew survived.
 * HMS LCT 300 (LCT300) : World War II: The Mk 3-class Landing Craft, Tank was lost on this date. N.F.I.
 * HMS LCT 511 (LCT511) : World War II: The Mk 4-class Landing Craft, Tank was lost under tow on this date. N.F.I.
 * SS Shahzada (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Arabian Sea south west of Bombay, India (15.5°N, 65.5°W) by GS U-196 with the loss of 46 of her 98 crew. Survivors were rescued by SS Changon (🇬🇧 United Kingdom and SS Magna (🇸🇪 Sweden) or reached land in their lifeboat.
 * USS Swerve (AM-121) : World War II: The Auk-class minesweeper struck a mine and sank in the Mediterranean Sea off Anzio, Lazio, Italy (41.51667°N, 12.46667°W).
 * SS Taihei Maru (1928) (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Kuril Islands by USS Sunfish (SS-281).

10 July

 * SS Anita (1899) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk by a submarine in the Aegean Sea off Tinos, Greece.
 * SS Duilio (🇩🇪 Germany): World War II: The troopship was bombed and sunk at Trieste, Italy by Allied aircraft. The wreck was scrapped in 1948.
 * HMS MMS 55 (J555) : World War II: The MMS-I-class Motor Minesweeper  was sunk by a mine off Normandy.

11 July

 * SS Taian Maru No.2 (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea by USS Sealion (SS-315).
 * SS Tsukushi Maru No.2 (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea by USS Sealion (SS-315).
 * GS U-1222 : World War II: The Type IXC/40 submarine was depth charged and sunk in the Bay of Biscay west of La Rochelle, Charente-Maritime, France (46.51667°N, -5.48333°W) by a Short Sunderland aircraft of 201 Squadron, Royal Air Force with the loss of all 56 crew.

12 July

 * HMS ML 433 (ML433) : World War II: The Fairmile B-class Motor Launch struck a mine and sank off the west coast of Italy.
 * SS Nichiran Maru : World War II: The cargo ship was torpedoed and sunk in the Bashi Strait (18.83333°N, 122.66667°W) by USS Piranha (SS-389) . 1,238 troops, 1 Gunner and 15 crewmen killed. Survivors rescued by SS Kashi Maru (🇯🇵 Japan).

14 July

 * JAPANESE SUBMARINE I-55 : World War II: The C3-class submarine was sunk in the Pacific Ocean (15.3°N, 144.43333°W by USS William C. Miller (DE-259) . Lost with all 112 hands.
 * SS Suzanne (1918) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk by the submarine HMS Vivid (P77) off Livadeia, Greece.
 * SS Taiko Maru : World War II: The cargo ship was torpedoed and sunk off Simisa Island in the Celebes Sea (5.93333°N, 121.56667°W) by USS Sand Lance (SS-381).
 * GS U-415 : World War II: The Type VIIC submarine struck a mine and sank in the Bay of Biscay off Brest, Finistère, France with the loss of two crew.

15 July

 * SS Director (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Mozambique Channel (-24.5°N, 35.73333°W) by GS U-198 with the loss of one of her 57 crew. Survivors were rescued by the sloop Goncalves Zarco (🇵🇹 Portugal) or reached land in their lifeboat.
 * SS Hugin (Bergen, 1906) (🇳🇴 Norway): World War II: The coaster was shelled and set on fire in the Barents Sea off Finnmark by SOVIET TORPEDO BOAT TKA 239 with the loss of two lives. She was towed to Vadsø, where she sank in September.
 * SS Miho Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Skate (SS-305) .Two crew survived and were taken as prisoners of war.
 * USS PT-133 (PT-133) : World War II: The ELCO 80' -class PT Boat was sunk by shore batteries off Cape Pus, New Guinea.
 * SS Tanda (🇬🇧 United Kingdom): World War II: The cargo liner was torpedoed and sunk in the Arabian Sea north west of Mangalore, India (13.36667°N, 74.15°W) by GS U-181 with the loss of nineteen of the 216 people on board. Survivors were rescued by HMIS Bihar  and HMS Monkshood (K207).
 * SOVIET TORPEDO BOAT TKA-239 : The torpedo boat attacked a German convoy off Vardø, Finnmark, Norway, but was sunk by the escorts.
 * GS U-319 : World War II: The Type VIIC/41 submarine was depth charged and sunk in the North Sea south west of Lindesnes, Vest-Agder, Norway (57.66667°N, 5°W) by a Consolidated B-24 Liberator aircraft of 206 Squadron, Royal Air Force with the loss of all 51 crew.

16 July

 * SS Jinzen Maru : World War II: Convoy TAMA-21C: The troop transport was torpedoed and sunk in the South China Sea (18.88333°N, 119.53333°W) by USS Guardfish (SS-217) . 38 troops, 1 passenger, 7 Gunners, 2  Watchmen and 3 crew killed.
 * HMS LCT 7057 (LCT7057) : World War II: The Mk 3-class Landing Craft, Tank was lost on this date. N.F.I.
 * SS Mantai Maru : World War II: Convoy TAMA-21C: The troop transport was torpedoed and sunk in the South China Sea (18.88333°N, 119.53333°W) by USS Guardfish (SS-217) . 72 troops and 43 crew killed.
 * GERMAN CRUISER Niobe : The Anti-Aircraft ship, a former Holland-class cruiser, was bombed and sunk at Kotka, Finland by Soviet aircraft. The wreck was raised and scrapped in 1953.
 * SS Nippo Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean by USS Skate (SS-305).
 * SS Norjerv (🇬🇧 United Kingdom): World War II: Operation Overlord: The cargo ship was sunk as a blockship as part of Gooseberry 4, Juno Beach, Calvados, France. She was refloated in 1949 but broke in two on 3 June whilst under tow, with both parts sinking.
 * SS Matt W Ransom (🇺🇸 United States): World War II: The Liberty ship was sunk as a blockship as part of Gooseberry 1, Utah Beach, Manche, France.
 * SS Sainei Maru : World War II: Convoy TAMA-21C: The troop transport was torpedoed and sunk in the South China Sea (18.88333°N, 119.53333°W) by USS Thresher (SS-200) . 21 troops and 3 crew killed.
 * SS Seattle Maru : World War II: Convoy TAMA-21C: The troop transport was torpedoed and sunk in the South China Sea (19.28333°N, 120.25°W) by USS Piranha (SS-389) . 296 troops, 25 Gunners, and 45 crew killed. Survivors pick up by SS Hiyama Maru and SS Shozan Maru

17 July

 * SS E. A. Bryan (1944) (🇺🇸 United States): Port Chicago disaster: The Liberty ship exploded and sank at Port Chicago, California whilst ammunition was being loaded.
 * SS Hiyama Maru (🇯🇵 Japan): World War II: Convoy TAMA-21C: The cargo ship was torpedoed and sunk in the South China Sea south west of Formosa by USS Guardfish (SS-217) . 4 troops and 4 crewmen killed.
 * JAPANESE SUBMARINE I-166 : World War II: The I-165-class submarine was torpedoed and sunk in the Straits of Malacca (2.8°N, 101.05°W) by HMS Telemachus (P321)  . 88 killed, 10 survivors.
 * SS Quinalt Victory (🇺🇸 United States): Port Chicago disaster: The Victory ship was destroyed at Port Chicago by the explosion of SS E. A. Bryan (1944) (🇺🇸 United States).
 * SS Sainei Maru (🇯🇵 Japan): World War II: Convoy TAMA-21C: The cargo ship was torpedoed and sunk in the Luzon Strait by USS Thresher (SS-200).
 * SS Shozan Maru : World War II: Convoy TAMA-21C: The cargo ship was torpedoed and sunk in the South China Sea (18.88333°N, 119.53333°W) by USS Thresher (SS-200) . 125 troops, 24 Gunners and 64 crewmen killed, along with 500 SS Seattle Maru  survivors.
 * GS U-347 : World War II: The Type VIIC submarine was depth charged and sunk in the Norwegian Sea off Narvik, Nordland, Norway (68.6°N, 8.55°W) by a Consolidated B-24 Liberator aircraft of 86 Squadron, Royal Air Force with the loss of all 49 crew.
 * GS U-361 : World War II: The Type VIIC submarine was depth charged and sunk in the Norwegian Sea west of Narvik (68.58333°N, 6°W) by a Consolidated PBY Catalina aircraft of 210 Squadron, Royal Air Force with the loss of all 52 crew.

18 July

 * SS Jambi Maru (🇯🇵 Japan): World War II: The tanker was torpedoed and sunk in the South China Sea of the Philippines by USS Ray (SS-271).
 * SS Nissyu Maru (🇯🇵 Japan): World War II: Convoy 3714: The cargo ship (A.K.A. Nisshu Maru) was torpedoed and sunk in the Pacific Ocean west of Chichi Jima in the Bonin Islands (28.71667°N, 139.4°W) by USS Cobia (SS-245) . 3 crewmen, 45 Gunners and 40 troops killed.
 * GS U-672 : World War II: The Type VIIC submarine was depth charged and sunk in the English Channel north of Guernsey, Channel Islands (50.05°N, -2.5°W) by HMS Balfour (K464) . All 52 crew survived.
 * GS U-742 : World War II: The Type VIIC submarine was depth charged and sunk in the Arctic Ocean (68.4°N, 9.85°W) by a Consolidated PBY Catalina aircraft of 210 Squadron, Royal Air Force with the loss of all 51 crew.
 * JAPANESE AUXILIARY GUNBOAT Unkai Maru No. 10 : Convoy 3714: World War II: The auxiliary Gunboat/cargo ship was torpedoed and sunk in the Pacific Ocean north west of Chichi Jima in the Bonin Islands by USS Cobia (SS-245) . 19 crewmen killed.

19 July

 * SS King Frederick (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Arabian Sea (9.48333°N, 71.75°W) by GS U-181 with the loss of 27 of the 56 people on board. Survivors were rescued by SS Samshee (🇬🇧 United Kingdom).
 * JAPANESE CRUISER Ōi : World War II: The Kuma-class cruiser was torpedoed and sunk in the South China Sea (13.2°N, 114.86667°W) by USS Flasher (SS-249) with the loss of 153 of her 522 crew. Survivors were rescued by JAPANESE DESTROYER Shikinami.
 * JAPANESE SUBMARINE Ro-48 : World War II: The (Ro-35-class submarine) (Possibly could have been I-5) was hedgehogged and sunk in the Pacific Ocean off the Marshall Islands (13.01667°N, 151.96667°W) by USS Reynolds (DE-42) and USS Wyman (DE-38) (both ).
 * SS Teiryu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Seaa south west of Formosa by USS Guardfish (SS-217).

20 July

 * ORP Dragon : World War II: the Danae-class cruiser was scuttled as a breakwater at Courseulles, Basse-Normandie, France.
 * HMS Isis (D87) : World War II: The I-class destroyer struck a mine and sank in the English Channel off Normandy, France.
 * HMS LCT 689 (LCT689) : World War II: The Mk 4-class Landing Craft, Tank was lost on this date from an explosion. N.F.I.
 * HMS LCT 2337 (LCT2337) : World War II: The Mk 5-class Landing Craft, Tank was lost on this date in the Normandy area. N.F.I.
 * SS Norfalk (🇳🇴 Norway): World War II: Convoy EBC 45 / Operation Overlord: The cargo ship struck a mine and sank in the English Channel 2 nmi off the coast of Normandy, France. All 40 crew were rescued by USS Diver (ARS-5).
 * BRAZILIAN TROOPSHIP Vital de Oliveira : World War II: The troopship was torpedoed and sunk in the South Atlantic (-22.48333°N, -41.15°W) by GS U-861 with the loss of 100 of the 275 people on board. Survivors were rescued by the fishing vessel Guanabar (🇧🇷 Brazil) and BRAZILIAN SUBMARINE CHASER Javarí.

21 July

 * BRAZILIAN MINELAYER Camaqua : The capsized and sank in a storm 30 miles east of Recife, Brazil (-7.83333°N, -34.48333°W).
 * GERMAN MINESWEEPER M-20 : World War II: The minesweeper was bombed and sunk by aircraft in the Baltic Sea, off Sweden.
 * GERMAN MINESWEEPER M-307 : The minesweeper was bombed, strafed and sunk by aircraft off Langeoog, Germany (53.5°N, 7.6°W).
 * GERMAN MINESWEEPER M-413 : World War II: The minesweeper was bombed and sunk by aircraft in the Narva Bay.
 * GS U-212 : World War II: The Type VIIC submarine was depth charged and sunk in the English Channel south of Brighton, East Sussex, United Kingdom (50.45°N, -0.21667°W) by HMS Curzon (K513) and HMS Ekins (K552) (both ) with the loss of all 49 crew.

23 July

 * SS Empire Beatrice (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed by E-boats and beached at Dungeness, Kent. She was later repaired and returned to service with a new stern section.
 * SS Empire Bittern (🇬🇧 United Kingdom): World War II: Operation Overlord: The ocean liner was sunk as a blockship off Normandy.

24 July

 * HMS MTB 372 : World War II: The  sunk by Kriegsmarine surface ships in the Adriatic Sea off Cape Loviste, Croatia.
 * SS Nordstern (1922) (🇩🇪 Germany): World War II: The cargo ship was bombed and sunk by aircraft at Donges, France.
 * SS Samneva (🇬🇧 United Kingdom): World War II: Convoy FTM 47: The Liberty ship was torpedoed and damaged in the English Channel (50.23333°N, -0.78333°W) by GS U-309 . All 70 crew survived. She was beached at Southampton, Hampshire but was declared a total loss when she broke in two. The bow section was scrapped in situ, the stern section was scrapped at Briton Ferry, Glamorgan in 1947.
 * GS U-239 : World War II: The Type VIIC submarine was bombed and damaged at Kiel, Schleswig-Holstein in a British air raid. She was stricken on 5 August and consequently scrapped.
 * SS William Gaston (🇺🇸 United States): World War II: The Liberty ship was torpedoed and sunk in the Atlantic Ocean (-26.7°N, -46.2°W) by GS U-861 . All 67 crew were rescued by USS Matagorda (AVP-22).

25 July

 * SS Robin Goodfellow (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the South Atlantic (-20.05°N, -14.35°W) by GS U-862 with the loss of all 68 crew.
 * JAPANESE MINELAYER Sokuten : World War II: The Sokuten-class Minelayer was sunk 30 miles north east of Babelthaup, Palau (7.33333°N, 134.45°W) when 3 strafing Grumman F6F Hellcats from USS San Jacinto (CVL-30)  detonated her load of mines.

26 July

 * JAPANESE TRANSPORT Aki Maru : World War II: Convoy HI-68: The Transport was torpedoed and sunk in the South China Sea north west of Luzon (18.25°N, 118°W) by USS Flasher (SS-249) . 24 passengers, 14 Gunners and 3 crewmen killed.
 * JAPANESE SUBMARINE I-29 : World War II: The B1 type submarine was torpedoed and sunk in the Balintang Channel (20.1°N, 121.55°W) by USS Sawfish (SS-276) with the loss of all but one of her 101 crew.
 * JAPANESE TANKER Otorisan Maru : World War II: Convoy HI-68: The Tanker was torpedoed and sunk in the South China Sea north west of Luzon (18.25°N, 118°W) by USS Flasher (SS-249) . 46 crewmen killed.
 * USS Robalo (SS-273) : World War II: The Gato-class submarine struck a mine and sank in the South China Sea (2 nmi west of Palawan Island, Philippines with the loss of 56 of her 60 crew. 4 survivors reached shore and were captured by Military Police, placed aboard a Destroyer for transportation and never seen again.
 * JAPANESE TRANSPORT Tosan Maru : World War II: Convoy HI-68: The Transport was torpedoed and damaged in the South China Sea north west of Luzon (18.25°N, 118°W)  by USS Flasher (SS-249) . Torpedoed again and further damaged by USS Crevalle (SS-291) . Sinks the next day with 18 passengers, 8 Gunners and 9 crewmen killed.
 * NO.101 CLASS LANDING SHIP Transport No. 150 : World War II: The No.101-class Landing ship was bombed and sunk in Karamadoo Bay, Babelthaup, Palau,(7.5°N, 134.5°W) by U.S. Navy aircraft.
 * GS U-214 : World War II: The Type VIIC submarine was depth charged and sunk in the English Channel (49.96667°N, -3.5°W) by HMS Cooke (K471) with the loss of all 48 crew.
 * GS U-2323 : World War II: The Type XXIII submarine struck a mine and sank off Kiel, Schleswig-Holstein (54.38333°N, 10.18333°W) with the loss of two of her fourteen crew. She was raised in 1945, but still under repair when the war ended and was subsequently scrapped.

27 July

 * HMS MTB 412 : World War II: The  sunk in a collision off Normandy.
 * HMT Maaløy : World War II: The naval trawler was torpedoed and sunk in the Indian Ocean off Ceylon (5.41667°N, 77.53333°W) by GS U-510.
 * SOVIET SUBMARINE V-1 : World War II: The S Class Submarine was bombed and sunk off Norway by an R.A.F. Liberator Bomber in error when the sub dived instead of firing recognotion signals as instructed before sailing.

28 July

 * SS Koshu Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Makassar Strait by USS Ray (SS-271).
 * GS U-1166 : The Type VIIC/41 submarine was severely damaged by the explosion of a torpedo. She was consequently stricked from the Kriegsmarine register on 28 August and was scuttled at Kiel, Schleswig-Holstein in May 1945.

29 July

 * HMT Lord Wakefield (FY170) : World War II: The naval trawler was bombed and sunk off Omaha Beach, Normandy by Luftwaffe aircraft.
 * HMS Prince Leopold : World War II: The Landing Ship, Infantry (Small) was torpedoed and sunk in the English Channel off the coast of Normandy, France (50.31667°N, -0.88333°W) with the loss of seventeen lives.
 * GS U-872 : World War II: The Type IXD2 submarine was bombed and severely damaged at Bremen during a United States Army Air Forces air raid with the loss of one crew member. She was consequently withdrawn from service and scrapped.
 * GERMAN DESTROYER Z44 : World War II: The destroyer was heavily damaged in an air raid, prior to commissioning. Scrapped 1948-49.

30 July

 * SOVIET MINESWEEPER KT-804 : World War II: The coastal minesweeper was torpedoed and sunk in Narva Bay by GS U-481.
 * SOVIET MINESWEEPER KT-807 : World War II: The coastal minesweeper was torpedoed and sunk in Narva Bay by GS U-481.
 * SOVIET SUBMARINE CHASER MO-105 : World War II: The submarine chaser was torpedoed and sunk in the Gulf of Finland (60.41667°N, 28.5°W) by GS U-250) with the loss of nineteen of her 26 crew.
 * SS Samwake (🇬🇧 United Kingdom): World War II: The Liberty ship was torpedoed and sunk in the English Channel (50.66667°N, 0.51667°W) by a Kriegsmarine schnellboot.
 * GS U-250 : World War II: The Type VIIC submarine was depth charged and sunk in the Gulf of Finland (60.46667°N, 28.41667°W) by SOVIET SUBMARINE CHASER MO-103 with the loss of 46 of her 52 crew. Raised by the Soviets in September, 1944 and towed to Kronstadt. Commissioned into the Soviet Navy as "TS-4" from April to August, 1945, later broken up.
 * USS YMS-304 : World War II: The YMS-1-class minesweeper struck a mine and sank off Saint-Vaast-la-Hougue, France (49.55°N, -1.23333°W).

31 July

 * JAPANESE AUXILIARY TRANSPORT Fuso Maru : World War II: Convoy MI-11: The Transport was torpedoed and sunk by USS Steelhead (SS-280) 280 miles north north west of Cape Mayraira, Luzon. 1,316 Japanese Army Air Force troops, 12 other passengers and 22 crewmen killed.
 * JAPANESE TANKER Koei Maru : World War II: Convoy MI-11: The Tanker was torpedoed and sunk by USS Parche (SS-384) 280 miles north north west of Cape Mayraira, Luzon. 150 troops and 9 crewmen killed.
 * SOVIET PATROL BOAT MO-101 : World War II: The MO-class patrol boat was torpedoed and sunk in the Gulf of Finland by GS U-370.
 * JAPANESE TRANSPORT Manko Maru : World War II: Convoy MI-11: The Transport was torpedoed and sunk by USS Parche (SS-384) 280 miles north north west of Cape Mayraira, Luzon. Several hundred IJN personnel, 17 troops, and 20 crewmen killed.
 * JAPANESE AUXILIARY GUNBOAT Peking Maru : World War II: The Auxiliary Gunboat ran aground on Vigan Point, Luzon (17.51667°N, 120.36667°W) on 21 July 1944. On 31 July she was torpedoed and damaged further by USS Aspro (SS-309) and abandoned.
 * SS Tinshin Maru (🇯🇵 Japan): World War II: The tanker (A.K.A. Tenshin Maru) was torpedoed and sunk in the Palawan Passage by USS Lapon (SS-260) . 44 crewmen killed.
 * GS U-333 : World War II: The Type VIIC submarine was sunk in the Atlantic Ocean west of the Isles of Scilly by HMS Loch Killin (K391) and HMS Starling (U66) (both ).
 * JAPANESE AUXILIARY TRANSPORT Yoshino Maru : World War II: Convoy MI-11: The Transport was torpedoed and sunk by USS Parche (SS-384) 280 miles north north west of Cape Mayraira, Luzon. 2,442 troops, 18 Gunners and 35 crewmen killed.

Unknown date

 * HMS LCT 2331 (LCT2331) : World War II: The LCT Mk 5-class Landing Craft, Tank was lost during July.
 * SS Palermo (1910) : World War II: The cargo ship was bombed and sunk by aircraft at Fiume, Italy.
 * GS U-1164 : World War II: The Type VIIC/41 submarine was bombed and damaged at Kiel, Schleswig-Holstein in a British air raid. She was consequently stricken on 24 July and subsequently scrapped.