List of shipwrecks in August 1941

The list of shipwrecks in August 1941 includes all ships sunk, foundered, grounded, or otherwise lost during August 1941.

1 August

 * MV Kwaibo (🇬🇧 United Kingdom): The cargo liner ran aground in the Calabar River, Nigeria and was wrecked.
 * SS Trident (1917) (🇬🇧 United Kingdom): World War II: The cargo ship was bombed and damaged in the North Sea 4 nmi off the mouth of the Tyne by Luftwaffe aircraft. She sank the next day.

2 August

 * SOVIET SUBMARINE S-11 : World War II: The S-class submarine struck a mine in the Soela Strait, Baltic Sea and was sunk.
 * SS Loodsboot No.12 (🇳🇱 Netherlands): World War II: The pilot vessel was bombed and sunk in the North Sea west of Den Helder, North Holland by Royal Air Force aircraft.
 * SS Rozenburg (🇳🇱 Netherlands): The cargo ship collided with MV Murena (🇳🇱 Netherlands in the Atlantic Ocean at Halifax, Nova Scotia, Canada and sank.
 * ITALIAN SUBMARINE Tembien : World War II: The Adua-class submarine was rammed and sunk in the Mediterranean Sea off Tunis, Tunisia (36.2°N, 12.66667°W by HMS Hermione (74).

3 August

 * MV Escaut (1938) (🇧🇪 Belgium): World War II: The cargo ship was bombed and sunk in Attika Bay, Suez, Egypt by Luftwaffe aircraft with the loss of three crew.
 * SS Elisa (1903) ( undefined): World War II: The coaster was bombed and sunk in the Mediterranean Sea off Benghazi, Libya by Royal Air Force aircraft.
 * GS U-401 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south west of Ireland (50.45°N, -19.83333°W) by HMS Hydrangea (K39) and HMS Wanderer (D74) (both ) and HMS St Albans (I15) with the loss of all 44 crew.

4 August

 * Robert Max (🇬🇧 United Kingdom): World War II: The trawler was shelled and sunk in the Atlantic Ocean (36.78333°N, -21.25°W) by GS U-126 (1940) . All six crew were rescued.
 * SS Tunisia (1937) (🇬🇧 United Kingdom): World War II: The cargo ship was bombed and sunk in the Atlantic Ocean (53.88333°N, -18.16667°W) with the loss of 38 of her 43 crew.

5 August

 * SS Belgravian (🇬🇧 United Kingdom): World War II: Convoy SL 81: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Ireland (53.05°N, -16.9°W) by GS U-372 with the loss of three of her 50 crew. Survivors were rescued by HMS Bluebell (K80)
 * SS Cape Rodney (🇬🇧 United Kingdom): World War II: Convoy SL 81: The cargo ship was torpedoed and damaged in the Atlantic Ocean (53.43333°N, -15.66667°W) by GS U-75 (1940) . She was taken in tow by HMS Zwarte Zee (W163) but sank on 9 August at 52.73333°N, -11.68333°W. All 39 crew were rescued by HMS Hydrangea (K39) and HMS Zinnia (K98) (both ).
 * SS Harlingen (1933) (🇬🇧 United Kingdom): World War II: Convoy SL 81: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.43333°N, -15.66667°W) by GS U-75 (1940) with the loss of three of her 42 crew. Survivors were rescued by HMS Hydrangea (K39).
 * SS Kumasian (1935) (🇬🇧 United Kingdom): World War II: Convoy SL 81: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.43333°N, -15.66667°W) by GS U-74 (1940) with the loss of one of the 60 people on board. Survivors were rescued by HMS La Malouine (K46).
 * SS Swiftpool (🇬🇧 United Kingdom): World War II: Convoy SL 81: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Ireland (53.05°N, -16°W) by GS U-372 with the loss of 42 of her 44 crew. Survivors were rescued by HMS Bluebell (K80)

6 August

 * SS Aberhill (🇬🇧 United Kingdom): World War II: Convoy FS 559: The cargo ship ran aground on Haisborough Sands, Norfolk and was wrecked.
 * SS Afon Towy (🇬🇧 United Kingdom): World War II: Convoy FS 559: The coaster ran aground on Haisborough Sands and was wrecked.
 * HMT Agate (1933) : World War II: Convoy FS 559: The naval trawler ran aground on Haisborough Sands and was lost with all 26 crew.
 * SS Betty Hindley (🇬🇧 United Kingdom): World War II: The collier ran aground on Haisborough Sands and was wrecked.
 * SS Bombardiere ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea 6 nmi off Fregene, Lazio (41.78333°N, 12.1°W) by HNLMS O-24.
 * SS Deerwood (🇬🇧 United Kingdom): World War II: Convoy FS 559: The cargo ship ran aground on Haisborough Sands and was wrecked.
 * MV Florvåg (🇳🇴 Norway): The ferry sank off Gravdal, Hordaland.
 * SS Gallois (🇬🇧 United Kingdom): World War II: The collier ran aground on Haisborough Sands and was wrecked. All crew were rescued.
 * SS Nita ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea 20 nmi south west of Lampedusa (35.25°N, 12.28333°W) by Fairey Swordfish aircraft of 830 Squadron, Fleet Air Arm.
 * SS Oxshott (🇬🇧 United Kingdom): World War II: Convoy FS 559: The cargo ship ran aground on Haisborough Sands and was wrecked.
 * PS-70 : World War II: The despatch vessel was torpedoed and sunk in the Barents Sea 7 nmi off Cape Teriberka by GS U-652 with the loss of 45 of her 57 crew.
 * SS Taara (🇬🇧 United Kingdom): World War II: Convoy FS 559: The collier ran aground on Haisborough Sands and was wrecked.

7 August

 * ST Amiral Lacaze: World War II: The tug was bombed and sunk at Famagusta, Cyprus by Luftwaffe aircraft.
 * HM MMS 39 : World War II: The minesweeper struck a mine in the Thames Estuary and sank.
 * SS Marghertia Madre ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea 15 nmi off Anzio, Lazio (41.38333°N, 12.63333°W) by HNLMS O-24.
 * SS Venus (1920) (🇩🇰 Denmark): World War II: The cargoship struck a mine and sank in the North Sea off Borkum, Lower Saxony, Germany.

8 August

 * SS Cordene (🇬🇧 United Kingdom): World War II: Convoy FN 503: The cargo ship was bombed and sunk in the North Sea (53.00889°N, 1.80833°W) by Luftwaffe aircraft. All crew were rescued.
 * SOVIET DESTROYER Karl Marx (: World War II: The Izyaslav-class destroyer was bombed and sunk in Loksa Bay by Luftwaffe aircraft.
 * Ocean Victor (🇬🇧 United Kingdom): World War II: The trawler was bombed and sunk in the Atlantic Ocean off Iceland by Luftwaffe aircraft.
 * SOVIET PATROL VESSEL SKR 12 : World War II: The patrol vessel was shelled and sunk in the Arctic Sea off Kilden Island by GERMAN DESTROYER Z16 Friedrich Eckoldt, GERMAN DESTROYER Z10 Hans Lody and GERMAN DESTROYER Z4 Richard Beitzen (all ).

9 August

 * SS Dagny I (🇳🇴 Norway): World War II: The cargo ship was bombed and damaged in the North Sea (61.66667°N, -6.16667°W) by Luftwaffe aircraft. She was taken in tow by HMT Leicester City by sank the next day with the loss of six of the 74 people on board. Survivors were rescued by SS Wastwater (1939) (🇬🇧 United Kingdom).
 * SS Gertrud III (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank in the Baltic Sea off Ventspils, Latvia.
 * HMS MGB 62 : World War II: The  sank in a collision with HMS MGB 67  in the North Sea.
 * Ocean Victor (🇬🇧 United Kingdom): World War II: The trawler was torpedoed and sunk in the Atlantic Ocean south east of Iceland by GS U-206 with the loss of all thirteen crew.

10 August

 * GERMAN MINESWEEPER M-1102 : World War II: The minesweeper was sunk by an air-dropped torpedo in the North Sea off Lindesnes, Vest-Agder, Norway.
 * SS Sir Russell (🇬🇧 United Kingdom): World War II: The cargo ship was torpedoed and sunk by GERMAN TORPEDO BOAT S-49 . All crew were rescued.
 * U-144 : World War II: The Type IID submarine was torpedoed and sunk in the Baltic Sea off Hiiumaa, Estonia (approximately 53°N, -19°W) by SOVIET SUBMARINE Shch-307  with the loss of all 23 crew.
 * SOVIET PATROL VESSEL Zhemchug : World War II: The patrol vessel was torpedoed and sunk in the White Sea west of the Kanin Peninsula by GS U-451 with the loss of all 61 crew.

11 August

 * SS California (1920) ( undefined): World War II: The hospital ship was torpedoed and sunk at Syracuse, Sicily by Fairey Swordfish aircraft of 830 Squadron, Fleet Air Arm.
 * MV Cito (🇳🇴 Norway): World War II: The coaster struck a mine and sank in Sognefjord.
 * SS Empire Hurst (🇬🇧 United Kingdom): World War II: Convoy HX 70: The cargo ship straggled behind the convoy. She was bombed and sunk in the Atlantic Ocean (36.8°N, -9.83333°W) by Luftwaffe aircraft with the loss of 26 of her 35 crew. The survivors were rescued by HMT Lady Hogarth.

12 August

 * A 14 : World War II: The lighter struck a mine and sank at Tobruk, Libya.
 * HMT Express : World War II: The auxiliary patrol vessel struck a mine and sank in the North Sea off Whitstable, Kent.
 * SS Ledokol No.5 ( Soviet Union): World War II: The icebreaker struck a mine and sank in the Black Sea.
 * SS Novorossiysk (1896) ( Soviet Union): World War II: The cargo ship was bombed and damaged in the Gulf of Odessa by Luftwaffe aircraft and was beached.
 * HMS Picotee (K63) : World War II: Convoy ON 5: The Flower-class corvette was torpedoed and sunk in the Atlantic Ocean south of Iceland by GS U-586 with the loss of all 71 crew.

13 August

 * 41 : World War II: The patrol boat was torpedoed and sunk in the Gulf of Finland north of Tallinn, Estonia by a Kriegsmarine schnellboot.
 *  Kephallina (🇬🇷 Greece): She foundered in the Mediterranean Sea off Alexandria, Egypt.
 * HMS LCT 14 (LCT14) : World War II: The LCT 1-class Landing Craft, Tank was lost in Home Waters on this date. N.F.I.
 * MV Polina Osipenko ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Black Sea by Luftwaffe aircraft.
 * Sjoborg (🇫🇴 Faroe Islands): World War II: The trawler struck a mine and sank in the Atlantic Ocean (61.51667°N, -5.66667°W) whilst fishing in a prohibited area.

14 August

 * MV Australind (🇬🇧 United Kingdom): World War II: The cargo ship was shelled and sunk in the Pacific Ocean (-4.21667°N, -91.05°W) by GERMAN AUXILIARY CRUISER Komet with the loss of three crew. Survivors were taken as prisoners of war.
 * SS Lotte Halm (🇩🇪 Germany): World War II: The cargo ship was bombed and sunk in the North Sea off Borkum, Lower Saxony by Royal Air Force aircraft.
 * SS Pelesh (🇷🇴 Romania): World War II: The tanker was torpedoed and sunk in the Bosphorus by Soviet forces with the loss of one crew member.
 * SS Sud ( undefined): World War II: Convoy HG 70: The cargo ship straggled behind the convoy. She was shelled and damaged in the Atlantic Ocean (41°N, -17.68333°W) by ITALIAN SUBMARINE Marconi and then torpedoed and sunk by GS U-126 (1940) . All 33 crew were rescued by SS Alferrarede (🇵🇹 Portugal).
 * SS Utena (🇱🇻 Latvia): World War II: The cargo ship struck a mine and sank in the Baltic Sea 7 nmi north of Cape Juminda.
 * SS Vodnik ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Baltic Sea east of Prangli, Estonia (59.7°N, 25.41667°W) by Luftwaffe aircraft.

15 August

 * SS Adua (1936) ( undefined): World War II: The coaster was bombed and sunk in the Gulf of Sirte (31.51667°N, 15.7°W) by Royal Air Force aircraft.
 * SS Norderney (🇩🇪 Germany): World War II: The cargo ship was intercepted in the Atlantic Ocean north east of the mouth of the Amazon by HMS Despatch (D30) and HMS Pretoria Castle (both ) and was scuttled by her crew.
 * SS Kretinga ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Gulf of Finland (59.76667°N, 25.05°W by Luftwaffe aircraft.
 * SS Memelland (🇩🇪 Germany): World War II: The cargo ship struck a mine and sank in the Baltic Sea south of Helsinki, Finland.

16 August

 * Evangelistra (🇬🇷 Greece): World War II: The steamboat was attacked and sunk in the Mediterranean Sea off Benghazi, Libya by HMS Torbay (N79).
 * ST Ness Point (🇬🇧 United Kingdom): World War II: The tug was bombed and sunk at Lowestoft, Suffolk by Luftwaffe aircraft. She was refloated on 23 August, subsequently repaired and returned to service.

17 August

 * SS Haakon Jarl (1904) (🇳🇴 Norway):World War II: The coaster was torpedoed and sunk in the Barents Sea (70.96667°N, 26.8°W by HMS Tigris (N63) with the loss of three crew.
 * SS Maddelina Odero ( undefined): World War II: The cargo ship was torpedoed and damaged in the Mediterranean Sea by HNLMS O-24 . She was bombed and sunk the next day at Lampedusa by Bristol Blenheim aircraft of 105 Squadron, Royal Air Force.
 * SS Sessa (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean 300 nmi south west of Iceland (61.43333°N, -30.83333°W) with the loss of 24 of her 27 crew. Survivors wer rescued by USS Lansdale (DD-426).
 * 80 : World War II: The patrol boat was torpedoed and sunk in the Baltic Sea off Tallinn, Estonia by GERMAN TORPEDO BOAT S-58.

18 August

 * SS Axel Carl ( Soviet Union: World War II: The cargo ship was bombed and sunk at Leningrad by Luftwaffe aircraft.
 * SS Boug ( Soviet Union: World War II: The depot ship was bombed and sunk at Kherson by Luftwaffe aircraft.
 * SS Longtaker (🇵🇦 Panama): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (61.43333°N, -30.83333°W) by GS U-38 (1938) with the loss of 24 of her 27 crew. Survivors were rescued by USS Lansdale (DD-426).
 * HMS P32 (1940) : World War II: The U-class submarine struck a mine and sank in the Mediterranean Sea north of Tripoli, Libya with the loss of 30 of her 32 crew.
 * HMS P33 (1941) : World War II: The U-class submarine was sunk by enemy action in the Mediterranean Sea with the loss of all 32 crew.
 * SOVIET DESTROYER Statnyi (: World War II: The Soobrazitelny-class destroyer struck a mine and sank in the Suur Strait.

19 August

 * SS Aguila (🇬🇧 United Kingdom): World War II: Convoy OG 71: The troopship was torpedoed and sunk in the Atlantic Ocean (49.38333°N, -17.93333°W) by GS U-201 with the loss of 152 of the 168 people on board. Survivors were rescued by Empire Oak (🇬🇧 United Kingdom) and HMS Wallflower (K44).
 * SS Alva (🇬🇧 United Kingdom): World War II: Convoy OG 71: The cargo ship was torpedoed and sunk in the Atlantic Ocean (48.8°N, -17.76667°W) by GS U-559 with the loss on one of her 25 crew. Survivors were rescued by HMS Boreas (H77), ST Empire Oak and SS Clonlara (both 🇬🇧 United Kingdom).
 * HNOMS Bath (I17) : World War II: Convoy OG 71: The Wickes-class destroyer was torpedoed and sunk in the Atlantic Ocean south west of Ireland (approximately 49°N, -17°W) by GS U-204 with the loss of 86 of her 128 crew. Survivors were rescued by HMS Hydrangea (K39) and HMS Wanderer (D74) (both ).
 * SS Ciscar (🇬🇧 United Kingdom) World War II: Convoy OG 71: The cargo ship was torpedoed and sunk in the Atlantic Ocean (49.16667°N, -17.66667°W) by GS U-201 with the loss of thirteen of her 48 crew. Survivors were rescued by SS Petrel (1920) (🇬🇧 United Kingdom).
 * SS Devon (1915) (🇬🇧 United Kingdom): World War II: The cargo ship was shelled and sunk in the Pacific Ocean 200 nmi south west of the Galápagos Islands, Ecuador (approximately -5°N, -91°W) by GERMAN AUXILIARY CRUISER Komet . All crew were rescued and made prisoners of war.
 * MV Golden Grain (🇬🇧 United Kingdom): World War II: The barge struck a mine and sank in the North Sea (51.58833°N, 1.055°W with the loss of all three crew.
 * HMS LCT 12 (LCT12) : World War II: The LCT 1-class Landing Craft, Tank was lost off Tobruk, Libya.
 * SOVIET HOSPITAL SHIP Sibir : World War II: The hospital ship was bombed and sunk in the Gulf of Finland by Luftwaffe aircraft with the loss of about 400 lives.
 * SS Sildra (🇳🇴 Norway): World War II: The tanker was torpedoed and sunk in the Atlantic Ocean (5.5°N, -12.83333°W) by ITALIAN SUBMARINE Tazzoli . All crew were rescued.
 * HMT Thorbryn : World War II: The whaler was towing two lighters. She was bombed and sunk in the Mediterranean Sea off Tobruk, Libya by Luftwaffe aircraft with the loss of nine of the 29 crew on the three vessels. The survivors were taken as prisoners of war.

20 August

 * SS Czestochowa (🇵🇱 Poland): World War II: The cargo ship was torpedoed and sunk in the North Sea (53.19167°N, 1.1°W by GERMAN TORPEDO BOAT S-48 with the loss of one crew member.
 * SS Enotria ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea 6 nmi off Capo Vito, Sicily by HMS Upholder (P37).
 * SS Esperia (1920) ( undefined): World War II: The troopship was torpedoed and sunk in the Mediterranean Sea off Tripoli, Libya (33.05°N, 13.05°W) by HMS Unique (N95) with the loss of 31 of the 1,170 people on board.
 * Juliet (🇬🇧 United Kingdom): World War II: The trawler was bombed and sunk in the Atlantic Ocean 30 nmi south of the Old Head of Kinsale, County Cork, Ireland by Luftwaffe aircraft. All crew were rescued.
 * HMT Lorinda : The naval trawler caught fire and sank in the Atlantic Ocean off Freetown, Sierra Leone (-6.5°N, -11.61667°W). All crew were rescued by HMT Balta.
 * San Stefano (🇬🇷 Greece): World War II: The boat was shelled and sunk in the Aegean Sea off Cape Maleas by HMS Thrasher (N37).
 * Solarris (🇫🇴 Faroe Islands): World War II: The Auxiliary trawler struck a mine and sank in the Atlantic Ocean off Seyðisfjörður, Iceland. Four crew were rescued.

21 August

 * SS Briansk ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Black Sea off Odessa by Luftwaffe aircraft.
 * Gloria in Excelsio Deo ( Free France): World War II: The drifter was bombed and sunk at Southampton, Hampshire, United Kingdom by Luftwaffe aircraft. She was later raised, repaired, and returned to service.
 * SS Hogland (🇫🇮 Finland): World War II: The cargo ship was torpedoed and sunk in the North Sea (58.26667°N, 4.8°W) by FRENCH SUBMARINE Rubis.

22 August

 * SS Cascade (🇵🇦 Panama): World War II: The cargo ship caught fire and sank in the Bay of Bengal off Sandeads, India.
 * SS Clonlara (🇮🇪 Ireland): World War II: Convoy OG 71: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Aveiro, Portugal (40.71667°N, -11.65°W) by GS U-564 with the loss of eleven crew, and eight survivors from SS Alva (🇬🇧 United Kingdom). Survivors were rescued by HMS Campion (K108).
 * ST Empire Oak (🇬🇧 United Kingdom): World War II: Convoy HX 70: The tug was torpedoed and sunk in the Atlantic Ocean (40.71667°N, -11.65°W) by GS U-564 ( with the loss of 19 of the 38 people on board, which included survivors from SS Aguila and SS Alva (both 🇬🇧 United Kingdom). Survivors were rescued by HMS Campanula (K18).
 * SS Lussin ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Capo Vito, Sicily by HMS Upholder (P37).
 * SS Ostpreußen (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Arctic Ocean 70.2°N, -21.08333°W by HMS Trident (N52).
 * HMS Tonbridge (1924) : World War II: The net laying ship was bombed and sunk in the North Sea off Great Yarmouth, Norfolk by Luftwaffe aircraft with the loss of 35 crew.

23 August

 * SS Aldergrove (🇬🇧 United Kingdom): World War II: Convoy OG 71: The cargo ship was torpeoded and sunk in the Atlantic Ocean (40.71667°N, -11.65°W) by GS U-201 with the loss of one of her 39 crew. Survivors were rescued by HMS Campanula (K18).
 * SS Constanza ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea south of Lampedusa by British Bristol Blenheim aircraft based on Malta.
 * SS Francesco Garre ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea 1 nmi off Sirte, Libya by HMS Tetrarch (N77).
 * SS Fratelli Garre ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea 12 nmi north west of Sirte by HMS Tetrarch (N77).
 * SS Inger (1930) (🇳🇴 Norway): World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (58.96667°N, -7.83333°W) by GS U-143 (1940) with the loss of nine of her 23 crew. Survivors were rescued by the trawler HMT Ladylove (FY335) (🇬🇧 United Kingdom).
 * SS Spind (1917) (🇳🇴 Norway): World War II: Convoy OG 71: The cargo ship was torpedoed and damaged in the Atlantic Ocean (40.71667°N, -11.65°W) by GS U-564 . She was then torpedoed and sunk in that position by GS U-564 . All 25 crew were rescued by HMS Boreas (H77).
 * MV Stork (1937) (🇬🇧 United Kingdom): World War II: Convoy OG 71: The coaster was torpeoded and sunk in the Atlantic Ocean (40.71667°N, -11.65°W) by GS U-201 with the loss of nineteen of her 22 crew. Survivors were rescued by HMS Campion (K108).
 * SOVIET MINESWEEPER T-204 Fugas (: World War II: The minesweeper struck a mine and sank in the Baltic Sea west of Krondstadt.
 * HMS Zinnia (K98) : World War II: Convoy OG 71: The Flower-class corvette was torpedoed and sunk south west of Portugal (40.41667°N, -10.66667°W) by GS U-564 with the loss of 49 of her 85 crew. Survivors were rescued by HMS Campion (K108).

24 August

 * SS Dellie (🇬🇧 United Kingdom): The coaster ran aground at Tweed Heads, New South Wales, Australia and was wrecked.
 * SS Eestirand : World War II: The ship was bombed and damaged in the Baltic Sea by Luftwaffe aircraft and was grounded near Prangli Island.
 * SOVIET DESTROYER Engels : World War II: The destroyer struck a mine and sank in the Baltic Sea north east of Cape Juminda, Estonia.
 * HMT Kos XVI : The Naval Whaler was rammed from behind by HMS Walney (1918) in the North Sea off Hull, Yorkshire (53.83333°N, 0.58333°W) a half hour before Midnight. She sank just after Midnight on 25 August.
 * SS Skagerak (1921) (🇬🇧 United Kingdom): World War II: The cargo ship struck a mine and sank in the River Orwell at Harwich, Essex (51.96889°N, 1.26833°W) with the loss of eighteen lives.
 * MS Tanker No. 11 (1938) : World War II: The naval tanker struck a mine and sank in the Gulf of Finland.

25 August

 * IRANIAN GUNBOAT Babr : World War II: Operation Marmalade: The gunboat was shelled and sunk at Khorramshar by HMAS Yarra (U77).
 * SS Caboto ( undefined): World War II: Operation Countenance: The cargo ship was scuttled at Bandar Shapur, Iran to prevent capture by HMS Lawrence . She was refloated and departed under tow on 1 September for Karachi, India. Repaired and entered British service as Empire Kohinoor.
 * SOVIET MINESWEEPER Dvina : World War II: The auxiliary minesweeper was torpedoed and sunk in the Arctic Sea off Syvatoy Nos, Murmansk Oblast by GS U-752.
 * SS Hohenfels (🇩🇪 Germany): World War II: Operation Countenance: The cargo ship was scuttled at Bandar Shapur. She was later salvaged by the British, repaired and entered service as Empire Kamal.
 * SS Lunacharski ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Gulf of Finland by Luftwaffe aircraft.
 * IRANIAN GUNBOAT Palang (): World War II: Operation Crackler: The gunboat was shelled and sunk at Abadan by HMS Shoreham (L32).
 * SS Troyburg (🇩🇪 Germany): World War II: The cargo ship ran aground at Farsund, Vest-Agder, Norway and was wrecked.
 * GS U-452 : World War II: The Type VIIC submarine was depth charged and sunk in the Atlantic Ocean south of Iceland (61.5°N, -15.5°W) by HMT Vascama (FY185) and a Consolidated PBY Catalina aircraft of 209 Squadron, Royal Air Force with the loss of all 42 crew.
 * SS Sturmfels (🇩🇪 Germany): World War II: Operation Countenance: The cargo ship was scuttled at Bandar Shapur. She was later salvaged by the British, repaired and entered service at Empire Kumari.
 * T-898 : World War II: The auxiliary minesweeper was torpedoed and sunk in the Barents Sea (80 nmi east of Cape Chernyj by GS U-752 with the loss of 41 of her 43 crew.
 * SS Weißenfels (🇩🇪 Germany): World War II: Operation Countenance: The cargo ship was scuttled at Bandar Shapur.

26 August

 * SOVIET SUBMARINE DEPOT SHIP Marija Uljanova : The Submarine Depot Ship was torpedoed and damaged in the Barents Sea (70.13333°N, 36.05°W) by GS U-571 . Fourteen survivors were rescued by SOVIET DESTROYER Valerian Kyubishev . Marija Uljanova was beached the next day at Teriberka where she was declared a total loss. She spent the rest of the war as an oil storage hulk and was scrapped post war.

27 August

 * SS Embassage (🇬🇧 United Kingdom): World War II: Convoy OS 4: The cargo ship was torpedoed and sunk in the Atlantic Ocean (approximately 54°N, -13°W) by GS U-557 with the loss of 39 of her 42 crew. Survivors were rescued by HMCS Assiniboine (D18).
 * SS Gamma (1901) ( Soviet Union): World War II: The coaster was scuttled at Tallinn, Estonia.
 * HMT Ladylove (FY335) (🇬🇧 United Kingdom: World War II: The trawler was torpedoed and sunk in the Atlantic Ocean off Iceland by GS U-202 with the loss of all fourteen crew.
 * SS Saugor (🇬🇧 United Kingdom): World War II: Convoy OS 4: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.6°N, -16.66667°W) by GS U-557 with the loss of 59 of her 82 crew. Survivors were rescued by SS Perth (🇬🇧 United Kingdom).
 * MS Segundo (🇳🇴 Norway): World War II: Convoy OS 4: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.6°N, -16.66667°W) by GS U-557 with the loss of seven crew of her 34 crew. Survivors were rescued by HMS Lulworth (Y60)
 * HMS Skudd III : World War II: The naval whaler was bombed and sunk at Tobruk, Libya by Luftwaffe aircraft. with the loss of six of her twelve crew.
 * SS Tremoda (🇬🇧 United Kingdom): World War II: Convoy OS 4: The cargo ship was torpedoed and sunk in the Atlantic Ocean (53.6°N, -16.66667°W) by GS U-557 with the loss of 32 of her 53 crew. Survivors were rescued by FRENCH MINESWEEPER Chevreuil.

28 August

 * SOVIET DESTROYER Artem : World War II: Soviet evacuation of Tallinn: The Orfey-class destroyer struck a mine and sank in the Baltic Sea north of Cape Juminda, Estonia.
 * SS Atis Kronvalds ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Gulf of Finland by Luftwaffe aircraft.
 * MV Cilicia ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea south south west of Capo Gallo, Morea, Greece by HMS Rorqual (N74).
 * SS Ella (1904) ( Soviet Union): World War II: Soviet evacuation of Tallinn: The passenger ship struck a mine and sank in the Baltic Sea off Cape Juminda.
 * SS Everita ( Soviet Union): World War II: Soviet evacuation of Tallinn: The cargo ship struck a mine and sank in the Baltic Sea off Cape Juminda.
 * SS Jarvamaa (🇪🇪 Estonia): World War II: The cargo ship was bombed and sunk in the Baltic Sea 10 nmi east of Hogland, Finland by Soviet Air Force aircraft.
 * SOVIET DESTROYER Kalinin (: World War II: Soviet evacuation of Tallinn: The Izyaslav-class destroyer struck a mine and sank in the Baltic Sea north of Cape Juminda.
 * SS Luga (1922) ( Soviet Union): World War II: The cargo ship struck a mine and sank in the Baltic Sea (59.78333°N, 25.41667°W).
 * MV Otaio (🇬🇧 United Kingdom): World War II: Convoy OS 4: The cargo ship was torpedoed and sunk in the Atlantic Ocean 300 nmi west by north of the Fastnet Rock (52.26667°N, -17.83333°W) by GS U-558 with the loss of thirteen of her 78 crew. Survivors were rescued by HMS Vanoc (H33).
 * SOVIET SUBMARINE S-5 (: World War II: Soviet evacuation of Tallinn: The S-class submarine struck a mine and sank in the Baltic Sea north of Cape Juminda.
 * SOVIET REPAIR SHIP Serp-I-Molot : World War II: The repair ship was bombed and damaged in the Gulf of Finland by Luftwaffe aircraft and was beached at Suursaari. She was declared a total loss.
 * SOVIET SUBMARINE Shch-301 (: World War II: Soviet evacuation of Tallinn: The Shchuka-class submarine struck a mine and sank in the Baltic Sea south of Ruuskeri, Estonia (59.86667°N, 25.26667°W with the loss of 39 of her 41 crew.
 * SS Silicia ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Morea, Greece (36°N, 21.5°W) by HMS Rorqual (N74).
 * SOVIET DESTROYER Skoryi (: World War II: The Soobrazitelny-class destroyer struck a mine and sank in the Baltic Sea north of Cape Juminda.
 * SS Skrunda (🇱🇻 Latvia): World War II: The cargo ship was bombed and sunk by in the Gulf of Finland by aircraft of Kampfgeschwader 77, Luftwaffe.
 * SS Vironia (1906) : World War II: The cargo/passenger ship struck a mine and sank in the Baltic Sea off Cape Juminda.
 * SOVIET DESTROYER Volodarski (: World War II: Soviet evacuation of Tallinn: The Orfey-class destroyer struck a mine and sank in the Baltic Sea north of Cape Juminda.
 * SOVIET DESTROYER Yakov Sverdlov (: World War II: The Novík-class destroyer struck a mine and sank in the Baltic Sea north of Cape Juminda.

29 August

 * SS Ausma (🇱🇻 Latvia): World War II: The cargo ship struck a mine and sank in the Baltic Sea off Cape Juminda.
 * SS Balkhash ( Soviet Union): World War II: The troopship struck a mine and sank in the Baltic Sea off Cape Juminda with the loss of 95 lives.
 * MO-109 : World War II: The MO-4-class patrol boat struck a mine and sank off Cape Juminda, Latvia.
 * SS Tobol ( Soviet Union): World War II: The cargo ship was bombed and sunk in the Gulf of Finland by Luftwaffe aircraft.
 * GS U-570 : World War II: The captured Type VIIC submarine was beached at Þorlákshöfn, Iceland to prevent her sinking. Subsequently refloated on 5 September, repaired and entered British service as HMS Graph.

30 August

 * MV Alfa (1916) ( undefined): World War II: The coaster was torpedoed and sunk in the Mediterranean Sea off Augusta, Sicily by HMS Unbeaten (N93).
 * SS Bahia Laura (1918) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Norwegian Sea off the Lofoten Islands, Nordland, Norway (70.45°N, 21.91667°W) by HMS Trident (N52) . Survivors were rescued by GERMAN DESTROYER Z10 Hans Lody, GERMAN DESTROYER Z20 Karl Galster, GERMAN MINESWEEPER R-153, GERMAN PATROL VESSEL V-6111, GERMAN PATROL VESSEL V-6113 (all ) and SS Midnatsol (1910) (🇳🇴 Norway).
 * SS Donau (1939) (🇩🇪 Germany): World War II: The cargo ship was torpedoed and sunk in the Norwegian Sea off the Lofoten Islands, Nordland, Norway (70.45°N, 21.91667°W) by HMS Trident (N52) . Survivors were rescued by GERMAN DESTROYER Z10 Hans Lody, GERMAN DESTROYER Z20 Karl Galster, GERMAN MINESWEEPER R-153, GERMAN PATROL VESSEL V-6111, GERMAN PATROL VESSEL V-6113 (all ) and SS Midnatsol (1910) (🇳🇴 Norway).
 * SS Egadi ( undefined): World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea 30 nmi north east of Lampedusa by Fairey Swordfish aircraft of 830 Squadron, Fleet Air Arm.
 * MO-202 : World War II: The MO-4-class patrol boat was shelled and sunk in the Baltic Sea off Ivanovo by German shore-based artillery.
 * SS Riv ( undefined): World War II: The cargo ship was bombed and sunk at Tripoli, Libya by Vickers Wellington aircraft of the Royal Air Force.

31 August
No ships were lost on this date.

Unknown date

 * SS Imanta ( Soviet Union): Probable casualty of war, Baltic Sea.
 * SOVIET SUBMARINE M-49 : World War II: The M-class submarine was lost, probably to a Russin mine, off Vladivostok sometime between 10–16 August.
 * SOVIET SUBMARINE M-63 : World War II: The M-class submarine was lost, probably to a Russin mine, off Vladivostok sometime between 10–16 August.
 * SOVIET SUBMARINE M-103 : World War II: The M-class submarine was lost north of Vormsi Island, Estonia sometime after 25 August.
 * SOVIET SUBMARINE S-6 : World War II: The "S Class submarine" was sunk by a mine off Oland, Sweden after 6 August.