List of shipwrecks in August 1942

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

1 August
For the foundering of the British cargo ship Lavington Court on this day, see the entry for 19 July 1942.
 * SS Clan Macnaughton (1921) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (180 nmi east of Tobago (11.9°N, -54.41667°W) by GS U-155 (1941) with the loss of five of her 82 crew. Survivors were rescued by MV Empire Bede (🇬🇧 United Kingdom).
 * Empire Imp (🇬🇧 United Kingdom): The tug capsized and sank at Pembroke Dock, Pembrokeshire.
 * SS Kentar (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nmi south east of Barbados (11.86667°N, -57.5°W) by GS U-155 (1941) with the loss of seventeen of her 79 crew.
 * SS Krest'janin ( Soviet Union): World War II: The cargo ship was torpedoed and sunk in the Barents Sea 10 nmi west of Mezhdysharskiy Island (71.13333°N, 52.31667°W) by GS U-601 with the loss of seven of the 45 people on board.
 * SS Meiwa Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Hokkaido by USS Narwhal (SS-167).
 * St Simon (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea 35 nmi north west of Beirut, Lebanon by GS U-77 (1940) . All crew survived.

2 August

 * SS Flora II (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 60 nmi south east of Vestmannaeyar, Iceland (62.75°N, -19.11667°W) by GS U-254 . All 30 people on board were rescued by the trawler Juni (Light Blue Flag of Iceland.svg Iceland).
 * SS Maldonado (🇺🇾 Uruguay): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nmi south south east of Bermuda (28.33333°N, -63.16667°W) by GS U-510 (. All 49 crew survived but her captain was taken prisoner. The survivors were rescued by RMS Capetown Castle (🇬🇧 United Kingdom), a United States Navy ship or reached land in their lifeboats.
 * SS Tremminard (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nmi east of Trinidad (10.66667°N, -57.11667°W) by GS U-160 (1941) . All 39 crew were rescued by SS Rio San Juan (🇦🇷 Argentina).

3 August

 * SS Belgian Soldier (🇧🇪 Belgium): World War II: Convoy ON 115: The cargo ship was torpoed and damaged in the Atlantic Ocean by GS U-553 . She then straggled behind the convoy and was torpedoed and sunk the next day 300 nmi east of Cape Race Newfoundland (45.86667°N, -47.21667°W) by GS U-607 with the loss of 21 of her 60 crew.
 * Bombay (🇬🇧 United Kingdom): World War II: The trawler was torpedoed and sunk in the Atlantic Ocean south of Iceland (approximately 62°N, -18°W) by GS U-605 with the loss of all thirteen crew.
 * MV Lochkatrine (🇬🇧 United Kingdom): World War II: Convoy ON 115: The cargo ship was torpedoed and sunk in the Atlantic Ocean east of Cape Race, Newfoundland (45.86667°N, -46.73333°W) by GS U-552 with the loss of nine of the 90 people on board. Survivors were rescued by HMCS Agassiz (K129) and HMCS Hamilton (I24) (both ).
 * SS Naniwa Maru (🇯🇵 Japan): World War II: The transport ship was torpedoed and sunk in the Pacific Ocean off Truk South Pacific Mandate (7.61667°N, 150.3°W) by USS Gudgeon (SS-211) . 4 passengers and 27 crewmen killed.
 * MV Tricula (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 250 nmi north east of Trinidad (11.58333°N, -56.85°W) by GS U-108 (1940) with the loss of 47 of her 58 crew. Survivors were rescued by SS Rio San Juan (🇦🇷 Argentina).

4 August

 * SS Empire Arnold (🇬🇧 United Kingdom): World War II: convoy EF 6: The cargo ship was torpedoed and sunk in the Atlantic Ocean 500 nmi east of Trinidad (10.75°N, -52.5°W) by GS U-155 (1941) with the loss of nine of her 57 crew. Her captain was taken on board U-155 as a prisoner of war, other survivors were rescued by SS Dalvanger (🇳🇴 Norway).
 * MV Havsten 🇳🇴 Norway): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean (10.41667°N, -56°W) by GS U-160 (1941) with the loss of one of her 33 crew. The ship was scuttled two days later (11.3°N, -54.75°W) by ITALIAN SUBMARINE Enrico Tazzoli
 * MV Richmond Castle (1939) (🇬🇧 United Kingdom): World War II: The refrigerated cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (50.41667°N, -30.08333°W) by GS U-176 with the loss of fourteen of her 64 crew. Survivors were rescued by SS Irish Pine (1919) (🇮🇪 Ireland), SS Hororata (🇬🇧 United Kingdom) and HMS Sunflower (K141).
 * USS Tucker (DD-374) : World War II: The Mahan-class destroyer struck a mine late on 3 August and sinks in the Pacific Ocean off Espiritu Santo with the loss of six of her 158 crew early on the 4th.
 * GS U-372 : World War II: The Type VIIC submarine was depth charged and sunk in the Mediterranean Sea off Haifa, Palestine by a Vickers Wellington aircraft of 221 Squadron, Royal Air Force and by HMS Croome (L62). HMS Sikh (F82), HMS Tetcott (L99) and HMS Zulu (F18) (all ). All 48 crew survived.

5 August

 * SS Arletta (🇬🇧 United Kingdom): World War II: Convoy ON 115: The tanker straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean south south west of Cape Race, Newfoundland (44.73333°N, -55.36667°W) by GS U-458 with the loss of 36 of her 41 crew. Survivors were rescued by USCGC Menemsha (WAG-39).
 * MV Draco (1922) (🇳🇱 Netherlands): World War II: The coaster was shelled and sunk in the Atlantic Ocean 325 nmi east of Barbados (11.08333°N, -53.5°W) by GS U-155 (1941) . All sixteen crew survived. They were either rescued by MV Athelbrae (🇬🇧 United Kingdom) or landed in Surinam in their lifeboat.
 * SS Pohjanlahti (🇫🇮 Finland): World War II: Continuation War: The cargo ship was shelled and sunk by a submarine north-west of Liepāja, Latvia.
 * SS Shoju Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Marcus Island by USS Pike (SS-173).
 * SS Spar (🇳🇱 Netherlands): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.08333°N, -43.63333°W) by GS U-593 with the loss of three of her 39 crew. Survivors were rescued by HMS Nasturtium (K107)  and HMCS Orillia (K119).

6 August

 * MV Breñas (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (10.33333°N, -56.16667°W) by GS U-108 (1940) with the loss of one of her 34 crew. The captain was taken on board U-108 as a prisoner of war. Other survivors were rescued by USCGC Jackson (WSC-142).
 * Ezzet (🇪🇬 Egypt): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea by GS U-77 (1940).
 * SS Ohio Maru (🇯🇵 Japan ): World War II: The cargo liner was torpedoed and sunk in the South China Sea off the coast of Indochina by USS Tautog (SS-199).
 * MV Rozewie (🇵🇱 Poland): World War II: The coaster was torpedoed and sunk in the Atlantic Ocean (11°N, -57.5°W) by GS U-66 (1940) with the loss of three of her eighteen crew.
 * HMS Thorn (N11) : World War II: The T-class submarine was torpedoed and sunk in the Mediterranean Sea south west of Gavdos Island, Greece by ITALIAN TORPEDO BOAT Pegaso with the loss of all 61 crew.
 * GS U-210 : World War II: The Type VII submarine was rammed and sunk by HMCS Assiniboine (I18) with the loss of six of her 43 crew.
 * GS U-612 : The Type VIIC submarine collided off Gotenhafen, Germany in the Bay of Danzig with GS U-444 and sank with the loss of two of her 45 crew. She was raised, repaired and returned to service as a training boat in May 1943.
 *  Wawaloam (🇺🇸 United States): World War II: The schooner was shelled and sunk in the Atlantic Ocean 460 nmi south of Cape Race, Newfoundland by GS U-86 (1941) . All seven crew were rescued by SS Irish Rose (1918) (🇮🇪 Ireland).

7 August

 * SS Arthur W. Sewall (🇳🇴 Norway): World War II: The tanker was torpedoed, shelled and sunk in the Atlantic Ocean (8.45°N, -34.35°W) by GS U-109 (1940) . All 36 crew were rescued by SS Athina Livanos (🇬🇷 Greece).
 * SS Belgian Soldier (🇧🇪 Belgium): World War II: Convoy ON 115: The cargo ship was torpedoed and sunk in the Atlantic Ocean (45.86667°N, -47.21667°W) by GS U-553.
 * MV Breñas (🇳🇴 Norway): World War II: The cargo ship was torpedoed, shelled and damaged in the Atlantic Ocean (8.63333°N, -53.75°W) by GS U-108 (1940) . She later sank at 10.33333°N, -56.16667°W with the loss of one of her 34 crew. Survivors were rescued by U-108 and landed at Trinidad, except for her captain, who was taken as a prisoner of war.
 * SS Delfshaven (1930) (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (7.4°N, -25.61667°W) by GS U-572 with the loss of one of her 39 crew.
 * HMS MTB 44 : World War II: The  was sunk by Kriegsmarine surface vessels off Dover.
 * HMS MTB 237 : World War II: The  was sunk by Kriegsmarine surface vessels off Barfleur, France.
 * JAPANESE SHIP Shofaka : World War II: The net tender was torpedoed and sunk in the Pacific Ocean near Wotje Atoll, Marshall Islands by USS Tambor (SS-198).
 * SS Wachtfels (1928) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Sicily, Italy by HMS Proteus (N29).

8 August

 * SS Anneberg (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (56.5°N, -32.23333°W) by GS U-379 . All 38 crew were rescued by HMCS Battleford (K165), HMS Nasturtium (K91) and HMS Primrose (K91) (both ).
 * SS Bifitku Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off the Kuril Islands by USS Narwhal (SS-167).
 * USS George F. Elliott (AP-13) : World War II: The Heywood-class attack transport was hit by a Mitsubishi G4M aircraft in a kamikaze attack in Ironbottom Sound, Solomon Islands. She was subsequently scuttled due to damage sustained.
 * SS Kaimoku (🇺🇸 United States): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (56.5°N, -32.23333°W) by GS U-379 with the loss of four of her 50 crew. Survivors were rescued by HMCS Battleford (K165).
 * SS Kelso (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (56.5°N, -32.23333°W) by GS U-176 with the loss of three of her 44 crew. Survivors were rescued by HMCS Battleford (K165).
 * SS Meiyo Maru : World War II: The Transport was torpedoed and sunk 14 miles west of Cape St. George, New Britain (-4.83333°N, 152.66667°W)  by USS S-38 (SS-143) . 342 troops and 31 crewmen killed.
 * SS Mount Kassion (🇬🇷 Greece): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell (56.5°N, -32.23333°W) by GS U-176 . All 54 crew were rescued by HMS Primrose (K91).
 * SS Nikkei Maru (🇯🇵 Japan): World War II: The cargo liner was torpedoed and sunk in the Kii Channel by USS Silversides (SS-236).
 * SS Trehata (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell (56.5°N, -32.23333°W) by GS U-176 with the loss of 31 of her 56 crew. Survivors were rescued by SS Inger Lise (🇳🇴 Norway).
 * GS U-379 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south east of Cape Farewell (57.18333°N, -30.95°W) by HMS Dianthus (K95) with the loss of 40 of her 45 crew.

9 August

 * USS Astoria (CA-34) : World War II: Battle of Savo Island: The New Orleans-class cruiser was shelled and sunk in Ironbottom Sound, Solomon Islands by Japanese cruisers.
 * HMAS Canberra (1927) : World War II: Battle of Savo Island: The County-class cruiser was shelled and heavily damaged by Japanese cruisers. She was scuttled by USS Ellet (DD-398).
 * USS Jarvis (DD-393) : The Bagley-class destroyer was torpedoed and sunk in the Pacific Ocean 40 nmi off Guadalcanal, Solomon Islands by Imperial Japanese Navy aircraft with the loss of all 233 crew.
 * HMS ML 301 : World War II: The  sunk by an explosion at Freeport.
 * SS Malmanger (1920) (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (7.21667°N, -26.5°W) by GS U-130 (1941) with the loss of two of her 34 crew. Two survivors were taken on board U-130 as prisoners of war, the rest reached land in their lifeboats.
 * SS Mendanau (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 400 nmi) south west of Freetown, Sierra Leone (4.75°N, -18°W) by GS U-752 with the loss of 69 of her 85 crew. Three survivors were taken on board U-752 as prisoners of war.
 * USS Quincy (CA-39) : World War II: Battle of Savo Island: The New Orleans-class cruiser was shelled and sunk in Ironbottom Sound off Guadalcanal, Solomon Islands by Japanese Cruisers, with the loss of 370 of her 807 crew.
 * SS Radchurch (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (56.25°N, -32°W) by GS U-176 with the loss of two of her 42 crew. Survivors were rescued by HMCS Battleford (K165).
 * MV San Emiliano (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 450 nmi west of Trinidad (7.36667°N, -54.13333°W) by GS U-155 (1941) with the loss of 40 of her 48 crew. Survivors were rescued by a United States Army ship.
 * GERMAN TANKER Taifun : The tanker collided with SS Fjœra (🇳🇴 Norway) off Sunnhordland, Norway and sank. She was refloated on 1 September, repaired and returned to service.
 * USS Vincennes (CA-44) : World War II: Battle of Savo Island: The New Orleans-class cruiser was shelled, torpedoed and sunk in Ironbottom Sound off Guadalcanal, Solomon Islands by Japanese Cruisers, with the loss of 332 of her 952 crew.

10 August

 * SS Cape Race (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (56.75°N, -22.83333°W) by GS U-660 . All 63 people on board were rescued by HMS Dianthus (K107) and HMS Nasturtium (K95) (both ).
 * SS Condylis (🇬🇷 Greece): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (57°N, -22.5°W) by GS U-438 and GS U-660 (both ) with the loss of nine of her 36 crew.
 * SS Empire Reindeer (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship was torpedoed and sunk in the Atlantic Ocean (57°N, -22.5°W) by GS U-660 . All 65 crew were rescued by HMS Dianthus (K107) and HMS Nasturtium (K95) (both ).
 * Kako : World War II: The Furutaka-class cruiser was torpedoed and sunk in the Pacific Ocean off Simbari Island, New Ireland (-2.46667°N, 152.18333°W) by USS S-44 (SS-155) while returning to base from the Battle of Savo Island  with the loss of 34 of her 616 crew.
 * Kharouf ( undefined): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea by GS U-77 (1940) . All crew survived.
 * MV Medon (1923) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Pará, Brazil by ITALIAN SUBMARINE Reginaldo Giuliani . Sixteen survivors were rescued by SS Reedpool (🇬🇧 United Kingdom).
 * SS Oregon (1920) (🇬🇧 United Kingdom): World War II: Convoy SC 94: The cargo ship straggled behind the convoy. She was torpedoed and damaged by GS U-660 with the loss of two of her 42 crew. Survivors abandoned ship and were rescued by HMS Dianthus (K95) and HMS Nasturtium (K107) (both ). Oregon was later torpedoed and sunk by GS U-438.
 * ITALIAN SUBMARINE Scire : World War II: The Adua-class submarine was sunk in the Mediterranean Sea 5 miles off Haifa, Palestine (33°N, 34°W) by HMS Islay (T172).
 * MV Strabo (🇳🇱 Netherlands): World War II: The coaster was shelled and sunk in the Atlantic Ocean 250 nmi east of Georgetown, Saint Vincent (7.48333°N, -54.08333°W) by GS U-155 (1941) . All thirteen crew survived.
 *  Vivian P. Smith (🇬🇧 United Kingdom): World War II: The schooner was shelled and sunk in the Atlantic Ocean 140 nmi east of the Turks and Caicos Islands (21.83333°N, -68.66667°W) by GS U-600 . All eleven crew survived.

11 August

 * HMS Eagle (1918) : World War II: Operation Pedestal: The aircraft carrier was torpedoed and sunk in the Mediterranean Sea 72 nmi south of Cape Salinas, Majorca, Spain (38.05°N, 3.02°W) by GS U-73 (1940) with the loss of 131 of her 791 crew.
 * SS Empire Hope (🇬🇧 United Kingdom): World War II: Convoy WS 21: The refrigerated cargo liner was bombed and damaged in the Mediterranean Sea off Galeta Island, Algeria by Heinkel He 111 and Junkers Ju 88 aircraft of the Luftwaffe. The crew abandoned the burning ship and were rescued by HMS Penn (G77) . The ship was torpedoed and further damaged the next day by ITALIAN SUBMARINE Bronzo . She was declared a hazard to shipping and was scuttled by HMS Bramham (L51).
 * SS Mirlo (1921) (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 870 nmi off Freetown, Sierra Leone (6.06667°N, -25.88333°W) by GS U-130 (1941) . All 36 crew were rescued by HMS Banff (Y43), HMS Boreas (H77) and HMT Canna (all ).
 * SS Vimiera (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean 450 nmi south west of the Cape Verde Islands, Portugal (10.05°N, -28.91667°W) by GS U-109 (1940) with the loss of seven of her 37 crew. The captain was taken on boar U-109 as a prisoner of war. Other survivors were rescued by HMS Crocus (K49) MV Siranger (🇳🇴 Norway) and SS Sylvia de Larrinaga (🇬🇧 United Kingdom).

12 August

 * SS Boltenhagen (1912) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in Flekkefjord, Norway by HMS Sturgeon (73S) (.
 * HMS Cairo (D87) : World War II: The C-class cruiser was torpeded and sunk in the Mediterranean Sea off Bizerta, Algeria by ITALIAN SUBMARINE Axum with the loss of 23 crew.
 * ITALIAN SUBMARINE Cobalto : World War II: The Acciaio-class submarine was depth charged by HMS Ithuriel (H05) and HMS Pathfinder (G10) (both . Rammed and sunk by HMS Ithuriel (H05) in the Mediterranean Sea  (37.65°N, 10°W).
 * ITALIAN SUBMARINE Dagabur : World War II: The Adua-class submarine was rammed and sunk by HMS Wolverine (D78) in the Mediterranean Sea  (37.3°N, 10.91667°W) off Algiers.
 * HMS Foresight (H68) : World War II: Operation Pedestal: The F-class destroyer was torpedoed and damaged in the Mediterranean Sea (37.66667°N, -10°W) by a Savoia-Marchetti SM.79 aircraft of the Regia Aeronautica. She was scuttled by HMS Tartar (F43) on the 13th.
 * SS Georg L M Russ (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in Norwegian waters by HMS Unshaken (P54).
 * SS Manzanillo (🇨🇺 Cuba): World War II: Special Convoy 12: The cargo ship was torpedoed and sunk in the Gulf of Mexico (24.33333°N, -81.83333°W) by GS U-508 with the loss of 23 crew.
 * SS Ogaden ( undefined): World War II: The cargo ship was torpedoed and sunk by HMS Porpoise (N14) in the Mediterranean en route from Benghazi to Tobruk in Libya.
 * SS Santiago de Cuba (🇨🇺 Cuba): World War II: Special Convoy 12: The cargo ship was torpedoed and sunk in the Gulf of Mexico (24.33333°N, -81.83333°W) by GS U-508 with the loss of ten of her 29 crew.

13 August

 * ITALIAN CRUISER Bolzano : World War II: The Trento-class cruiser was torpedoed and damaged by HMS Unbroken (P42) in the Mediterranean Sea. She was beached on the island of Panarea. Refloated in September and towed to Naples.
 * SS Clan Ferguson (1938) (🇬🇧 United Kingdom): World War II: Operation Pedestal: The cargo ship was sunk in the Mediterranean Sea by enemy action with the loss of 32 of the 85 people on board.
 * SS Cripple Creek (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 400 nmi off Sierra Leone (4.91667°N, -18.5°W) by GS U-752 with the loss of one of her 52 crew. Survivors were rescued by HMS St. Winstan (T105).
 * SS Delmundo (🇺🇸 United States): World War II: Convoy TAW 12: The Design 1022 cargo ship was torpedoed and sunk in the Atlantic Ocean 18 nmi south of Cape Maysi, Cuba (19.91667°N, -73.81667°W) by GS U-600 with the loss of eight of her 58 crew. Survivors were rescued by HMS Churchill (I45).
 * SS Everelza (🇱🇻 Latvia): World War II: Convoy TAW 12: The cargo ship was torpedoed and sunk in the Atlantic Ocean 18 nmi south of Cape Maysi (19.91667°N, -73.81667°W) by GS U-600 with the loss of 23 of her 37 crew. Survivors were rescued by the convoy's escorts.
 * SS Glenorchy (🇬🇧 United Kingdom: World War II: Operation Pedestal: The cargo ship was sunk in the Mediterranean Sea by GERMAN TORPEDO BOAT S-26 and GERMAN TORPEDO BOAT S-31 (both ) with the loss of nine of her seventeen crew. The survivors were taken as prisoners of war.
 * HMS Manchester (15) : World War II:Operation Pedestal: The Town-class cruiser was scuttled in the Mediterranean Sea off Tunisia following battle damage.
 * SS Medea (1916) (🇳🇱 Netherlands): World War II: Convoy WAT 13: The cargo ship was torpedoed and sunk in the Caribbean Sea (19.9°N, -74.26667°W) by GS U-658 with the loss of five of her 28 crew. Survivors were rescued by a United States Navy vessel.
 * SS R. M. Parker Jr. (🇺🇸 United States): World War II: The tanker was torpedoed and sunk in the Gulf of Mexico 25 nmi south of Isles Dernieres, Louisiana (28.83333°N, -90.7°W) by GS U-170 . All 44 crew were rescued by USC&GS Pioneer (🇺🇸 united states).
 * SS Waimarama (🇬🇧 United Kingdom): World War II: Operation Pedestal: The cargo ship was sunk in the Mediterranean Sea by enemy action with the loss of 93 of the 95 people on board.

14 August

 * SS Empire Corporal (🇬🇧 United Kingdom): World War II: Convoy TAW 12J: The tanker was torpedoed and sunk in the Caribbean Sea (21.75°N, -76.16667°W) GS U-598 ( with the loss of six of her 55 crew. Survivors were rescued by USS PT-498.
 * SS Hachigen Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Celebes Sea by USS Seawolf (SS-197).
 * SS Michael Jebsen (🇬🇧 United Kingdom): World War II: Convoy TAW 12J: The cargo ship was torpedoed and sunk in the Caribbean Sea north west of Barlovento Point, Cuba (21.75°N, -76.16667°W) by GS U-598 with the loss of seven of her 47 crew. Survivors were rescued by a United States Navy patrol boat.
 * USS S-39 (SS-144) : World War II: The S-class submarine ran aground on a reef in the Coral Sea south of Rossel Island, Louisiade Archipelago. Her crew was rescued by HMAS Katoomba on the 16th.
 * SS Sylvia de Larrinaga (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (10.81667°N, -33.58333°W by ITALIAN SUBMARINE Reginaldo Giuliani.

15 August

 * SS Balladier (🇺🇸 United States): World War II: Convoy SC 95: The cargo ship was torpedoed and sunk in the Atlantic Ocean 550 nmi south east of Iceland (55.38333°N, -24.53333°W) by GS U-705 with the loss of thirteen of her 45 crew. Survivors were rescued by SS Norluna (🇺🇸 United States).
 * SOVIET SUBMARINE M 97 : World War II: The M-class submarine was depth charged and sunk in the Gulf of Finland (59.83333°N, 24.5°W) by VMV 5.

16 August

 * SS Annibal Benévolo (🇧🇷 Brazil): World War II: The cargo liner was torpedoed and sunk in the Atlantic Ocean 15 nmi off the mouth of the Real River (-11.68333°N, -37.35°W) by GS U-507 with the loss of 150 of the 154 people on board.
 * MV Araraquara (🇧🇷 Brazil): World War II: The refrigerated cargo liner was torpedoed and sunk in the Atlantic Ocean 20 nmi off the mouth of the Real River (-12°N, -37.31667°W) by GS U-507 with the loss of 131 of the 142 people on board.
 * SS Baependy (🇧🇷 Brazil): World War II: The troopship was torpedoed and sunk 20 nmi) off Aracaju (-11.83333°N, -37°W) by GS U-507 with the loss of 270 of the 306 people on board.
 * Daniel ( undefined): World War II: The sailing ship was shelled and sunk in the Mediterranean Sea by GS U-77 (1940) . All crew survived.
 * MV Suecia (🇸🇪 Sweden): World War II: Convoy SC 95: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean (55.71667°N, -25.96667°W) by GS U-596 with the loss of nine of her 38 crew.

17 August

 * SS Arará (🇧🇷 Brazil): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 9 nmi off the São Paulo Lighthouse, Bahia, Brazil (-13.33333°N, -38.81667°W) by GS U-507 with the loss of twenty of her 36 crew.
 * SS Fort La Reine (🇬🇧 United Kingdom): World War II: Convoy PG 6: The Fort ship, on her maiden voyage, was torpedoed and sunk in the Windward Passage west of Haiti (18.13333°N, -75.33333°W) by GS U-658 with the loss of three of her 44 crew. Survivors were rescued by HMS Pimpernel (K71) ( and a United States Navy patrol boat.
 * SS Itagiba (🇧🇷 Brazil): World War II: The cargo liner was torpedoed and sunk in the Atlantic Ocean 9 nmi off the São Paulo Lighthouse (-13.33333°N, -38.66667°W) by GS U-507 with the loss of 36 of ther 181 people on board.
 * ST Komiles ( Soviet Union): World War II: The tug was shelled and sunk in the Pechora Sea near Matveev Island by GS U-209 . Survivors were rescued by the tug Nord ( Soviet Union) and the minesweepers T-54 and T-62 (both ).
 * ST Komsomolec ( Soviet Union): World War II: The tug was shelled and sunk in the Pechora Sea near Matveev Island by GS U-209 . Survivors were rescued by the tug Nord ( Soviet Union) and the minesweepers T-54 and T-62 (both ).
 * SS Liljevalch (🇸🇪 Sweden): World War II: The ore carrier was torpedoed and sunk in the Baltic Sea off Västervik by L 3.
 * MV Louisiana (1937) (🇧🇷 Brazil): The tanker was torpedoed and sunk in the Atlantic Ocean approximately 300 nmi north east of Cayenne, French Guiana by GS U-108 (1940) with the loss of all 49 crew.
 * P4 ( Soviet Union): World War II: The barge was torpedoed, shelled and sunk in the Pechora Sea near Matveev Island by GS U-209 . Survivors were rescued by the tug Nord ( Soviet Union) and the minesweepers T-54 and T-62 (both ).
 * SS Princess Marguerite (1925) (🇨🇦 Canada): World War II: The troopship was torpedoed and sunk in the Mediterranean Sea north west of Port Said,Egypt (32.05°N, 32.78333°W) by GS U-83 (1941)  with the loss of 49 of the 1,123 people on board. Survivors were rescued by HMS Hero (H99) and  HMS Kelvin (F37) (both ).
 * SS Samir (🇪🇬 Egypt): World War II: Convoy PG 6: The cargo ship was torpedoed and sunk in the Windward Passage west of Haiti (18.5°N, -75.33333°W) by GS U-658.
 * Sh-500 ( Soviet Union): World War II: The barge was shelled and sunk in the Pechora Sea near Matveev Island by GS U-209 . Survivors were rescued by the tug Nord ( Soviet Union) and the minesweepers T-54 and T-62 (both ).
 * MV Triton (1930) (🇳🇴 Norway): World War II: Convoy SL 118: The cargo ship was torpedoed and sunk in the Atlantic Ocean north east of the Azores, Portugal (39.51667°N, -22.71667°W) by GS U-566 . All 44 people on board were rescued by SS Baron Dunmore (🇬🇧 United Kingdom).

18 August

 * SS Balingkar (🇳🇱 Netherlands): World War II: Convoy SL 118: The cargo ship was torpedoed and sunk in the Atlantic Ocean (41.56667°N, -19.81667°W) by GS U-214 with the loss of two of her 93 crew.
 * MV Blankaholm (🇸🇪 Sweden): World War II: Convoy TAW 3: The cargo ship was torpedoed and sunk in the Caribbean Sea 95 nmi west of Guantanamo Bay, Cuba (19.68333°N, -76.83333°W) by GS U-553 with the loss of five of her 28 crew.
 * MV Empire Bede (🇬🇧 United Kingdom): World War II: Convoy TAW 13: The cargo ship was torpedoed and damaged in the Caribbean Sea (19.68333°N, -76.83333°W) by U-553  with the loss of two of her 45 crew. She was scuttled by gunfire from HMS Pimpernel (K71).
 * SS Hatarana (🇬🇧 United Kingdom): World War II: Convoy SL 118: The cargo ship was torpedoed and damaged in the Atlantic Ocean (41.11667°N, -20.53333°W) by GS U-214 . All 108 crew were rescued by SS Corabella (🇬🇧 United Kingdom and HMS Penstemon (K61), which scuttled Hatarana.
 * SS John Hancock (🇺🇸 United States): World War II: Convoy TAW 13: The Liberty ship was torpedoed and sunk in the Caribbean Sea 95 nmi west of Guantanamo Bay (19.68333°N, -76.83333°W) by GS U-553 . All 49 crew were rescued by a Royal Navy corvette.
 * HMS MTB 43 : World War II: The  was shelled and sunk by Kriegsmarine surface craft off Gravelines, France.
 * HMS MTB 218 : World War II: The  struck a mine and sank in Dover Strait.
 * SS Perseo (1921) ( undefined): World War II: The cargo ship was torpedoed and sunk by a submarine off Cape Carbonara, Italy.

19 August

 * HMS Berkeley (L17) : World War II: Dieppe Raid: The Hunt-class destroyer was bombed and sunk in the English Channel off Dieppe, Seine-Maritime, France with the loss of fifteen of her 146 crew.
 * SS British Consul (🇬🇧 United Kingdom): World War II: Convoy TAW (S): The tanker was torpedoed and sunk in the Caribbean Sea off Port of Spain, Trinidad (11.96667°N, -62.63333°W) by U-161 with the loss of two of the 42 people on board. Survivors were rescued by HMS Clarkia (K88).
 * SS City of Manila (1916) (🇬🇧 United Kingdom): World War II: Convoy SL 118: The cargo ship was torpedoed and damaged in the Atlantic Ocean west of Cape Finisterre, Spain (43.35°N, -18.33333°W) by GS U-406 with the loss of one of her 96 crew. She was abandoned by the survivors, but was later reboarded by some of them. City of Manila later broke in two and sank. All 95 survivors were rescued by SS Empire Voice (🇬🇧 United Kingdom) and HMT Gorleston (Y92).
 * MV Cressington Court (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean north east of Belém, Brazil (7.96667°N, -46°W) by GS U-510 with the loss of eight of her 44 crew. Survivors were rescued by SS Woensdrecht (🇳🇱 Netherlands).
 * SS Empire Cloud (🇬🇧 United Kingdom): World War II: Convoy TAW (S): The cargo ship was torpedoed and damaged in the Caribbean Sea north east of Trinidad by GS U-564 with the loss of three of her 54 crew. She sank at 10.9°N, -62.16667°W on 21 August when under tow.
 *  Jacyra (🇧🇷 Brazil): World War II: The barque was stopped in the South Atlantic off Itacaré (-14.5°N, -38.66667°W) by GS U-507 and sunk by explosive charges after her six crew had been ordered into a lifeboat.
 * HMS LCT 121 (LCT121) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was abandoned at Dieppe, France.
 * HMS LCT 122 (LCT122) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was lost at Dieppe, France.
 * HMS LCT 124 (LCT124) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was abandoned at Dieppe, France.
 * HMS LCT 126 (LCT126) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was abandoned at Dieppe, France.
 * HMS LCT 145 (LCT145) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was abandoned at Dieppe, France.
 * HMS LCT 159 (LCT159) : World War II: Dieppe Raid: The LCT 1-class Landing Craft, Tank was abandoned at Dieppe, France.
 * Sea Gull D (🇬🇧 United Kingdom): World War II: The sailing ship was shelled and damaged in the Caribbean Sea (11.63333°N, -67.7°W) by GS U-217 with the loss of three of the 74 people on board. The damaged ship rendezvoused with SS Kassos (🇨🇭 Switzerland) which rescued the survivors and salvaged the cargo. Sea Gull D was abandoned and left to sink.
 * GERMAN SUBMARINE CHASER UJ-1404 : The submarine chaser was sunk with gunfire off Dieppe, France (49.93333°N, 1.06667°W).
 * SS West Celina (🇺🇸 United States): World War II: Convoy TAW (S): The Design 1013 cargo ship was torpedoed and sunk in the Atlantic Ocean 95 nmi north east of Isla Margarita, Venezuela (11.75°N, -62.5°W) by GS U-162 (1941) with the loss of one of her 44 crew. Survivors were rescued by SS Maracaibo (1899) (🇻🇪 Venezuela).

20 August

 * GS U-464 : World War II: The Type XIV submarine was depth charged and damaged in the Pacific Ocean by a Consolidated PBY Catalina aircraft of the United States Navy Squadron VP-73 with the loss of two of her 54 crew. She was scuttled by her crew, who were rescued by the trawler Skaftfellingur (Light Blue Flag of Iceland.svg Iceland) and later transferred to HMS Castleton (I23) and HMS Newark (G08) (both ) as prisoners of war.

21 August

 * SS City of Wellington (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Freetown, Sierra Leone (7.48333°N, -14.66667°W) by GS U-506 with the loss of seven of her 73 crew. Survivors were rescued by HMS Velox (D34).
 * SS Shinsei Maru No. 6 (🇯🇵 Japan ): World War II: The cargo liner was torpedoed and sunk in the Pacific Ocean near Ponape, Caroline Islands by USS Tambor (SS-198).
 * SS Seikai Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Kinkasan Harbour, Honshū by USS Guardfish (SS-217).

22 August

 * USS Blue (DD-387) : World War II: Battle of Guadalcanal: The Bagley-class destroyer was torpedoed and damaged in the Pacific Ocean off Guadalcanal by JAPANESE DESTROYER Kawakaze with the loss of nine of her 158 crew. She was scuttled the next day.
 * Chaika ( Soviet Union): World War II: The motor boat was captured and scuttled in the Matochkin Strait by GS U-456.
 * ITALIAN TORPEDO BOAT Generale Antonio Cantore : World War II: The Torpedo Boat was sunk by a mine off Libya.
 * MV Hammaren (🇸🇪 Sweden): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 40 nmi off Salvador, Bahia, Brazil (-13°N, -38.25°W) by GS U-507 with the loss of six of her 31 crew.
 * USS Ingraham (DD-444) : The Gleaves-class destroyer collided in the Atlantic Ocean off Nova Scotia, Canada, with USS Chemung (AO-30) ( and sank with the loss of 197 of her 208 crew.
 * SS Tatsuho Maru : World War II: The Transport was torpedoed and sunk in the East China Sea (25.86667°N, 121.48333°W) north of Formosa by USS Haddock (SS-231) . 26 passengers and 12 crewmen killed.
 * GS U-458 : World War II: The Type VIIC submarine was depth charged and sunk in the Mediterranean Sea south east of Pantelleria, Italy (36.41667°N, 12.65°W) by HMS Easton (L09) ( and GREEK DESTROYER Pindos with the loss of eight of her 47 crew.
 * GS U-654 : World War II: The Type VIIC submarine was depth charged and sunk in the Caribbean Sea north of Colón, Panama by a B-18 aircraft of the 45th Bombardment Squadron, United States Army Air Forces with the loss of all 44 crew.

23 August

 * SS Hamla (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south of Freetown, Sierra Leone (5.5°N, -15°W) by GS U-506 with the loss of all 40 crew.

24 August

 * SS Kijbyshev ( Soviet Union): World War II: The cargo ship was torpedoed and sunk in the Kara Sea north west of Dikson Island (73.86667°N, 77.66667°W) by GS U-601 with the loss of all hands.
 * HMS ML 103 : World War II: The  sunk by a mine in Dover Strait.
 * Medvezhonok ( Soviet Union): World War II: The harbour tug was shelled and sunk in the Kara Sea (73.86667°N, 77.66667°W by GS U-601 with the loss of all hands.
 * SS Moena (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (13.41667°N, -57.25°W) by GS U-162 (1941) with the loss of four of her 87 crew. Survivors were rescued by MV Cromarty (🇬🇧 United Kingdom).
 * SS Peter von Danzig (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank in the Kattegat.
 * JAPANESE AIRCRAFT CARRIER Ryūjō : World War II: Battle of the Eastern Solomons: The aircraft carrier was bombed, torpedoed and sunk by aircraft from USS Saratoga (CV-3) with the loss of 120 of her 924 crew.
 * SS Seikai Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Pacific Ocean off Kinkasan by USS Guardfish (SS-217).
 * MS Tourcoing (1924) (🇳🇴 Norway): World War II: The cargo ship struck a mine and sank in the Baltic Sea off Swinemünde, Germany.

25 August

 * MV Abbekerk (🇳🇱 Netherlands): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (52.08333°N, -30.83333°W) by GS U-604 with the loss of two of her 64 crew. Survivors were rescued by HMS Wallflower (K44).
 * SS Amakura (🇬🇧 United Kingdom): World War II: Convoy WAT 15: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Caribbean Sea 90 nmi south east of Port Morant, Jamaica (17.76667°N, -75.86667°W) by GS U-558 with the loss of thirteen of her 44 crew.
 * SS Cuba Maru : World War II: The Transport ran aground on a reef in dense fog (46.38333°N, 143.61667°W) 13 nautical miles east of Kita-Shiretoko-Mishchi in the Sea of Okhotsk. Breaks in two during a Typhoon on the 28yh, and sinks on the 29th.
 * SS Empire Breeze (🇬🇧 United Kingdom): World War II: Convoy ON 122: The cargo ship was torpedoed and damaged in the Atlantic Ocean by GS U-404 with the loss of one of her 49 crew. She sank on or after 27 August. Survivors were rescued by SS Irish Willow (1919) (🇮🇪 Ireland).
 * SS Harmonides (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Indian Ocean 1.78333°N, 77.45°W by JAPANESE SUBMARINE I-165.
 * SS Katvaldis (🇬🇧 United Kingdom): World War II: Convoy ONS 122: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell, Greenland (48.91667°N, -35.16667°W) by GS U-605 with the loss of three of her 43 crew. Survivors were rescued by SS Stockport (🇬🇧 United Kingdom).
 * JAPANESE ARMED MERCHANT CRUISER Kenryu Maru : World War II: Battle of the Eastern Solomons:  The Armed Merchant Cruiser was bombed and sunk 40 miles north east of Santa Isabel Island (-7.78333°N, 160.21667°W)  by US Navy aircraft. Survivors rescued by JAPANESE DESTROYER Mutsuki, JAPANESE DESTROYER Yayoi, JAPANESE PATROL BOAT PB-01, and JAPANESE PATROL BOAT PB-02  all . She is scuttled with a torpedo launched by JAPANESE DESTROYER Mutsuki while the destroyer is sinking.
 * JAPANESE DESTROYER Mutsuki : World War II: Battle of the Eastern Solomons: The Mutsuki-class destroyer was bombed and sunk 40 miles north east of Santa Isabel Island (-7.78333°N, 160.21667°W) by 4 US Army B-17s while assisting JAPANESE TRANSPORT Kenryu Maru . She scuttles JAPANESE ARMED MERCHANT CRUISER Kenryu Maru  and is in turn scuttled by JAPANESE DESTROYER Yayoi . 41 crewmen killed and 11 wounded.
 * JAPANESE GUNBOAT Senyo Maru : World War II: The gunboat was torpedoed and sunk in the East China Sea off Formosa by USS Growler (SS-215).
 * SS Sheaf Mount (🇬🇧 United Kingdom): World War II: Convoy ONS 122: The cargo ship was torpedoed and sunk in the Atlantic Ocean south east of Cape Farewell (48.91667°N, -35.16667°W) by GS U-605 with the loss of 31 of her 51 crew. Survivors were rescued by SS Stockport (🇬🇧 United Kingdom).
 * SS Showa Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Celebes Sea by USS Seawolf (SS-197).
 * SS Stad Amsterdam (🇳🇱 Netherlands): World War II: Convoy WAT 15: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Caribbean Sea (16.65°N, -73.25°W) by GS U-164 (1941) with the loss of three of her 38 crew.
 * SS Trolla (🇳🇴 Norway): World War II: Convoy ON 122: The cargo ship was torpedoed and sunk in the Atlantic Ocean (48.91667°N, -35.16667°W) by GS U-438 with the loss of six of her 22 crew. Survivors were rescued by HNOMS Potentilla (K214).
 * GERMAN MINELAYER Ulm : World War II: The minelayer was shelled and sunk in the White Sea south east of Bear Island, Norway by Royal Navy destroyers.
 * SS Viking Star (1919) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 160 nmi south south west of Freetown, Sierra Leone (6°N, -14°W) by GS U-130 (1941) with the loss of seven of her 61 crew.

26 August

 * SS Beechwood (1940) (🇬🇧 United Kingdom): World War II: The cargo ship was torpedied and sunk in the Atlantic Ocean south of Monrovia, Liberia (5.5°N, -14.06667°W) by GS U-130 (1941) with the loss of one of the 44 people on board. The captain was taken on board U-130 as a prisoner of war. The rest of the survivors were rescued by RFA Fortol.
 * SS Empire Kumari (🇬🇧 United Kingdom): World War II: Convoy LW 38: The cargo ship was torpedoed and damaged in the Mediterranean Sea (31.96667°N, 34.35°W) by GS U-375 with the loss of three of her 92 crew. She was beached at Haifa, Palestine but subsequently sank. The wreck was scrapped in June 1952.
 * SS Teinshum Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the Formosa Straits by USS Haddock (SS-231).
 * RFA Thelma : World War II: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean (13.33333°N, -58.16667°W) by GS U-162 with the loss of two of the 33 people on board. Survivors were rescued by a Royal Navy ship.
 * GERMAN SUBMARINE CHASER UJ-1216 : The submarine chaser was sunk at Vik, Sogn og Fjordane, Norway.

27 August

 * SS Chatham (1936) (🇺🇸 United States): World War II: Convoy SG 6F: The passenger ship was torpedoed and sunk in the Belle Isle Strait (51.88333°N, -55.8°W) by GS U-517 with the loss of fourteen of the 562 people on board. Survivors were rescued by USS Bernadou (D-153) (, USCGC Mojave (WPG-47)  and HMCS Trail (K174)  or reached shore in their lifeboats.
 * SS Clan Macwhirter (1918) (🇬🇧 United Kingdom): World War II: Convoy SL 119: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Gibraltar (35.75°N, -18.75°W) by GS U-156 (1941) with the loss of eleven of her 86 crew. Survivors were rescued by PORTUGUESE SLOOP Pedro Nunes.
 * SS Cobra (1926) (🇩🇪 Germany): World War II: The passenger/cargo ship was bombed and sunk by aircraft at Schiedam, the Netherlands.
 * SS Esso Aruba (🇺🇸 United States): World War II: Convoy TAW 15: The tanker was torpedoed and damaged in the Caribbean Sea 120 nmi south of Guantanamo Bay, Cuba (18.15°N, -74.63333°W) by GS U-511 . She was beached the next day at Guantanamo Bay. Later repaired, returned to service in February 1943.
 * SS Raeder : The coaster ran aground at Hustadvika, Møre og Romsdal, Norway. Salvage attempts were abandoned on 3 September and she was declared a total loss.
 * MV Rotterdam (1925) (🇳🇱 Netherlands): World War II: Convoy TAW 15: The tanker was torpedoed and sunk in the Caribbean Sea 120 nmi south of Guantanamo Bay (18.15°N, -74.63333°W) by GS U-511 with the loss of ten of her 47 crew. Survivors were rescued by USS SC-522.
 * SS San Fabian (🇬🇧 United Kingdom): World War II: Convoy TAW 15: The tanker was torpedoed and sunk in the Caribbean Sea 120 nmi south south east of Guantanamo Bay (18.15°N, -74.63333°W) by GS U-511 with the loss of 26 of her 59 crew. Survivors were rescued by USS Lea (DD-118) and USS PC-38 (both ).
 * SS Tokai Maru (🇯🇵 Japan): World War II: The cargo liner was torpedoed and sunk in the Pacific Ocean off Guam by USS Snapper (SS-185).

28 August

 * SS Arlyn (🇺🇸 United States): World War II: Convoy SG 6: The cargo ship straggled behind the convoy. She was torpedoed and damaged in the Belle Isle Strait (51.73333°N, -55.66667°W by GS U-165 (1941) with the loss of twelve of her 54 crew. She was abandoned  by the survivors, who were rescued by SS Harjurand (🇵🇦 Panama) or reached land in their lifeboat. Arlyn was sunk later that day by GS U-517.
 * JAPANESE DESTROYER Asagiri : World War II: The Fubuki-class destroyer was bombed and sunk near of Santa Isabel Island (-8°N, 160.16667°W) by  USMC SBD Dauntlesss from Henderson Field. 60 troops and 62 crewmen killed. 135 troops and 135 crewmen rescued by JAPANESE DESTROYER Amagiri.
 * SS City of Cardiff (🇬🇧 United Kingdom): World War II: Convoy SL 119: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of Lisbon, Portugal (40.33333°N, -16.03333°W) by GS U-566 with the loss of 21 of her 84 crew. Survivors were rescued by HMS Rochester (L50).
 * GS U-94 (1940) : World War II: The Type VIIC submarine was depth charged, rammed and sunk in the Caribbean Sea (17.66667°N, -74.5°W by a Consolidated PBY Catalina aircraft of the United States Navy and HMCS Oakville (K178) with the loss of nineteen of her 45 crew.
 * SS Zuiderkerk (🇳🇱 Netherlands): World War II: Convoy SL 119: The cargo ship was torpedoed and damaged in the Atlantic Ocean north west of Lisbon (40.33333°N, -16.03333°W) by GS U-566 . The ship was scuttled the next day by HMS Erne (U03), whilst HMS Leith (L36) (both ) rescued the 68 crew.

29 August

 * JAPANESE SUBMARINE I-123 : World War II: The I-121-class submarine was depth charged and sunk in the Solomon Sea (-9.35°N, 160.71667°W) by USS Gamble (DD-123) . Lost with all 71 hands.
 * Ro-33 : World War II: The Ro-33 class was depth charged and sunk in the Coral Sea 10 nmi south east of Port Moresby, Papua New Guinea (-9.6°N, 147.1°W)  by HMAS Arunta (I30) . Lost with all 70 hands.
 * SS Topa Topa (🇺🇸 United States): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 350 nmi north of Cayenne, French Guiana (10.26667°N, -51.5°W) by GS U-66 (1940) with the loss of 25 of the 60 people on board. Survivors were rescued by SS Clan Macinnes (1920) (🇬🇧 United Kingdom).

30 August

 * USS Casco (AVP-12) : World War II:The Barnegat-class seaplane tender was torpedoed and damaged in Nazan Bay, Alaska by JAPANESE SUBMARINE RO-61 with the loss of five crew. She was beached, but was refloated on 12 September. Subsequently repaired and returned to service.
 * USS Colhoun (DD-85) : World War II: The High-speed transport, a former Wickes-class destroyer, was bombed and sunk in the Pacific Ocean near Guadalcanal, Solomon Islands (-9.4°N, 160.01667°W) by Japanese aircraft with the loss of 51 of her 100 crew.
 * SS Jack Carnes (🇺🇸 United States): World War II: The tanker was torpedoed and damaged in the Atlantic Ocean (45.58333°N, -28.03333°W) by GS U-705, She was torpedoed and sunk the next day at 41.58333°N, -29.01667°W by GS U-516 with the loss of 28 of her 56 crew.
 * SS Monstella (1918) ( undefined): World War II: The cargo ship was torpedoed by HMS Rorqual (N74) and beached at Corfu, Greece. Scrapped post-war.
 * MV Sir Huon (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (10.86667°N, -54°W) by GS U-66 (1940) . All 46 crew were rescued by SS Tambour (🇵🇦 Panama) and SS 13 de Diciembre (🇦🇷 Argentina).
 * SS Star of Oregon (🇺🇸 United States): World War II: The Liberty ship was torpedoed and sunk in the Caribbean Sea off Trinidad (11.8°N, -59.75°W) by GS U-162 with the loss of one of her 53 crew. Survivors were rescued by a United States Navy patrol boar.
 * RFA Vardaas : World War II: The tanker was torpedoed, shelled and sunk in the Caribbean Sea north east of Tobago (11.58333°N, -60.66667°W) by GS U-564.
 * SS West Lashaway (🇺🇸 United States): World War II: The Design 1013 cargo ship was torpedoed and sunk in the Atlantic Ocean (10.5°N, -55.16667°W) by GS U-66 (1940) with the loss of 38 of her 56 crew. Survivors were rescued by SS Prins Willem van Oranje (🇳🇱 Netherlands).

31 August

 * SS Anglo-Norse (1914) (🇬🇧 United Kingdom): The cargo ship caught fire whilst under repair in the River Tyne and sank when her cargo of ammunition exploded. Refloated on 3 September, repaired and re-entered service as Empire Norse.
 * MV Bronxville (1929) (🇳🇴 Norway): World War II: Convoy SC 97: The cargo ship was torpedoed and sunk in the Atlantic Ocean (57.21667°N, -33.66667°W) by GS U-609 . All 39 crew were rescued by SS Perth (1915) (🇬🇧 United Kingdom).
 * SS Capira (🇵🇦 Panama): World War II: Convoy SC 97: The cargo ship was torpedoed and sunk in the Atlantic Ocean (57.21667°N, -33.66667°W) with the loss of five of her 54 crew. Survivors were rescued by HMCS Drumheller (K167) and SS Perth (🇬🇧 United Kingdom).
 * SS Eifuku Maru (🇯🇵 Japan): World War II: The cargo ship was torpedoed and sunk in the South China Sea off Formosa by USS Growler (SS-215).
 * JAPANESE SUBMARINE Ro-61 : World War II: The Japanese Type L submarine was depth charged and damaged by two US Navy PBYs from Squadrons VP-42 and 43, then depth carged, shelled and sunk in the Bering Sea off Atka Island Alaska (52.6°N, -173.95°W) by USS Reid (DD-369) . 60 crewmen killed, including the C.O., 5 rescued by USS Reid (DD-369).
 * SS Winamac (🇬🇧 United Kingdom): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (10.6°N, -54.56667°W) by GS U-66 (1940) with the loss of 30 of her 51 crew. Survivors were rescued by MV Empire Lugard (🇬🇧 United Kingdom).

Unknown date

 * SS Anibal Benevolo (🇧🇷 Brazil): World War II: The cargo ship was sunk by Axis forces.
 * SOVIET SUBMARINE K-2 : World War II: The K-class submarine left base on 26 August and was not heard from again.
 * SOVIET SUBMARINE M-33 : World War II: The M Class submarine was sunk by a mine between 22–25 August off Odessa.
 * SOVIET SUBMARINE M-173 : World War II: The M Class submarine was lost 6–18 August off Norway.
 * ITALIAN SUBMARINE Morosini : World War II: The Marcello-class submarine was lost in the Bay of Biscay to unknown causes in late August.
 * SOVIET SUBMARINE ShCh-208 : World War II: The Shchuka-class submarine was lost after 23 August in the Black Sea off the coast of Bulgaria or Romania.
 * GS U-578 : World War II: The Type VIIC submarine was lost on patrol in the Bay of Biscay on or after 6 August with the loss of all 40 crew. Cause unknown.
 * 163 : World War II: The auxiliary ship was shelled and sunk in the Pacific Ocean by USS Pompano (SS-181) sometime after 23 August.