World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean (en)
World War II: The coaster struck a mine off Egersund and sank. (en)
World War II: Convoy HX 53: The cargo ship straggled behind the convoy. She was torpedoed, shelled, and split in two in the Atlantic Ocean west south west of the Fastnet Rock by . The stern section sank. All 23 crew survived and were rescued by . The bow section sank three days later at . (en)
World War II: The cargo ship was torpedoed and sunk off Egersund, Rogaland by . (en)
World War II: The cargo ship was shelled and sunk in the South Atlantic by . (en)
World War II: The cargo ship was shelled and sunk in the South Atlantic by with the loss of four of her 41 crew. The survivors were rescued by Thor and made prisoners of war. (en)
World War II: Convoy FN 223: The cargo ship was bombed and sunk in the North Sea south of the Aldeburgh Lightship . She was taken in tow by but sank. All crew were rescued by and the trawler Vidonia . (en)
World War II: The cargo ship was bombed and sunk in the English Channel south west of St Catherine's Point, Isle of Wight by Dornier Do 17 and Messerschmitt Bf 110 aircraft of the Luftwaffe with the loss of ten crew of her 28 crew. The survivors were rescued by . (en)
World War II: The Type IA submarine sank after being depth charged and damaged in the Atlantic Ocean off the Bishop Rock the previous day by a Short Sunderland of 10 Squadron, Royal Australian Air Force and the corvette . All 48 crew were rescued by the sloop . (en)
World War II: Operation Catapult: The was shelled and damaged at Mers-el-Kébir, Algeria by the Royal Navy with the loss of 46 crew. She was later salvaged and placed under repair. (en)
World War II: Convoy CW 8: The cargo ship was bombed and sunk in the English Channel off Dover by Junkers Ju 87 aircraft of I/StG 1 and IV/LG 1, Luftwaffe with the loss of two crew. (en)
World War II: Convoy CW 8: The collier was bombed and sunk in the English Channel off New Romney, Kent by Junkers Ju 87 aircraft of I/StG 1 and IV/LG 1, Luftwaffe. All crew were rescued. (en)
World War II: Convoy OA 178: The Crest Line Shipping Co. cargo ship was torpedoed and sunk in the English Channel south of Portland Bill by with the loss of 16 crew. Survivors were rescued by . (en)
World War II: The dredger struck a mine and sank in the North Sea off Amble, Northumberland with the loss of three crew. (en)
World War II: Convoy OA 180: The cargo ship was torpedoed and sank in the North Sea off Cape Wrath, Sutherland, United Kingdom by . All eight crew were rescued by . (en)
World War II: Convoy FN 223: The cargo ship ran aground on Inchkeith, Fife. (en)
World War II: The cargo ship was shelled and sunk in the South Atlantic by . All 33 crew were rescued and made prisoners of war. (en)
World War II: The coaster was bombed and sunk in the Atlantic Ocean south west of Cornwall, United Kingdom by Luftwaffe aircraft. All crew were rescued by , and . (en)
World War II: The was bombed and sunk in the Norwegian Sea by a Dornier Do 17 aircraft of Küstenfliegergruppe 606, Luftwaffe with the loss of all 59 crew. (en)
World War II Convoy CW 8: The coaster was bombed and sunk in the English Channel off Dover, Kent by Junkers Ju 87 aircraft of I Gruppe, StG 1 and IV Gruppe, LG 1 , Luftwaffe. All crew were rescued. (en)
World War II: The A-class destroyer was bombed and severely damaged at Dover, Kent by Luftwaffe aircraft. She was beached with a broken back and declared a total loss. (en)
World War II: The torpedo boat struck a mine and was damaged in the North Sea east of South Foreland, Kent, United Kingdom. She was taken in tow but subsequently sank. (en)
World War II: Convoy CW 8: The cargo ship was bombed and sunk in the English Channel off Folkestone, Kent by Junkers Ju 87 aircraft of I/StG 1 and IV/LG 1, Luftwaffe with the loss of one of her crew. (en)
World War II: Convoy HX 55A: The cargo ship was torpedoed and sunk in the North Sea off Cape Wrath, Sutherland by with the loss of 14 of her 79 crew. The survivors were rescued by . (en)
World War II: The S-class submarine struck a mine and sank off Egersund, Rogaland, Norway with the loss of all 39 crew. (en)
World War II: Operation Lever: The auxiliary patrol vessel was sunk at Mers-el-Kébir by British aircraft . (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Cape Clear Island, Ireland by . All 74 crew survived. (en)
World War II: The tanker was damaged by Luftwaffe aircraft in Falmouth harbour. (en)
World War II: The cargo ship was torpedoed and sunk by off Semaphore d'Asmare. (en)
World War II: The cargo ship struck a mine and sank in the Wadden Sea off Spiekeroog, Lower Saxony. (en)
World War II: Convoy CW 8: The cargo ship was torpedoed and sunk in the English Channel south of Worthing, Sussex by . (en)
World War II: The W-class destroyer was bombed and sunk in the North Sea off Aldeburgh, Suffolk by Luftwaffe aircraft with the loss of 37 crew. The survivors were rescued by and . (en)
World War II: Convoy CW 3: The coaster was bombed and sank in the English Channel off Dungeness, Kent by Luftwaffe aircraft. All the crew were rescued. (en)
World War II: The submarine chaser was torpedoed and sunk in the North Sea north of Terschelling, Friesland, Netherlands by . 9 of her 46 crew were killed. (en)
World War II: Operation Catapult: The was shelled and damaged by the Royal Navy at Mers-el-Kébir, Algeria with the loss of three crew. She was beached to prevent her sinking. Subsequently repaired and returned to service. (en)
World War II: The steam barge was bombed and sunk by Luftwaffe aircraft in the River Stour at Mistley, Essex. All crew were rescued. (en)
World War II: Convoy HX 53: The cargo ship was torpedoed and sunk in the Celtic Sea south of the Fastnet Rock (en)
World War II: The coaster was shelled and sunk by shore batteries at Ningpo, China. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean southwest of Ireland by with the loss of three of her 30 crew. (en)
World War II: Convoy FN 223: The cargo ship was bombed and damaged in the North Sea south of the Aldeburgh Lightship with the loss of four crew. She was taken in tow but later sank. Survivors were rescued by . (en)
World War II: The Raubtier-class torpedo boat was torpedoed and sunk in the North Sea off Utsira, Rogaland, Norway by . 34 crew were killed. (en)
World War II: The cargo ship was shelled and sunk in the South Atlantic by with the loss of eight of her 38 crew. The survivors were taken as prisoners of war. (en)
World War II: The yacht was scuttled in the North Sea by , which rescued the four crew. (en)
World War II: The cargo ship was bombed and sank in the North Sea off Winterton-on-Sea, Norfolk, United Kingdom by Luftwaffe aircraft. (en)
The , fishing vessel was destroyed by fire at the cannery dock at Wrangell, Territory of Alaska. Her six crewmen survived. (en)
World War II: The cargo ship was bombed and sunk in Dover Harbour, Kent, United Kingdom with the loss of 19 crew. (en)
World War II: Convoy OA 172G: The ocean liner was bombed and damaged in the English Channel south east of Start Point, Devon, by Luftwaffe aircraft with the loss of 21 crew. The survivors were rescued by . The wreck was scuttled two days later at approximately . (en)
World War II: The cargo ship was torpedoed and sunk in the English Channel, south of Shoreham by . (en)
World War II: The passenger ship struck a mine and sank in the Mediterranean Sea east of Tolmeita, Libya . (en)
World War II: Operation Lever: The was torpedoed at Mers-el-Kébir by aircraft based on and sunk by the explosion of Terre Neuve with the loss of 154 crew. She was subsequently refloated, towed to Toulon, Var, France and placed under repair. (en)
World War II: The cargo ship struck a mine and sank in the Bristol Channel off Port Talbot, Glamorgan, United Kingdom with the loss of five of the 21 people on board. Survivors were rescued by a RAF Rescue Launch . (en)
World War II: Operation Catapult: The was torpedoed and sunk in the Mediterranean Sea north of Matifou, Algeria by (en)
World War II: The tanker was shelled and sunk by in the Mediterranean Sea off Haifa, Palestine . All crew were rescued. (en)
World War II: The cargo liner was bombed and sunk in the Atlantic Ocean due west of Ouessant, Finistère, France by Luftwaffe aircraft with the loss of two crew. The survivors were rescued by the trawler Roger Jeannine . (en)
World War II: The naval trawler was bombed and sunk in the English Channel south of the Isle of Wight by Luftwaffe aircraft with the loss of two crew. (en)
World War II: Convoy CW 8: The cargo ship was bombed and sunk in the English Channel off Dover, Kent by Junkers Ju 87 aircraft of I/StG 1 and IV/LG 1, Luftwaffe with the loss of six crew. (en)
World War II: The Design 1018 cargo ship was captured in the Atlantic Ocean by and scuttled by gunfire. All 25 crew survived. (en)
World War II: The coaster struck a mine and sank in Liverpool Bay off the Formby Lightship with the loss of all hands. (en)
World War II: Convoy SL 36: The cargo ship was torpedoed and sunk in the Bay of Biscay by with the loss of three of her 33 crew and three survivors from . The survivors were rescued by and . (en)
The auxiliary harbor patrol ship was lost on this date. (en)
World War II: The naval trawler was bombed and sunk in the Thames Estuary east of Essex by Luftwaffe aircraft with the loss of 19 of her 22 crew. The survivors were rescued by . (en)
The submarine collided off Morro de la Vaca with the destroyer and sank. (en)
World War II: The steamer was bombed by Luftwaffe aircraft and sank in Falmouth harbour. Her cargo of raw cotton caught alight and she was later towed to a small bay near St Mawes and sunk by gunfire. She was later re-floated and beached at Place where some of her cargo was salvaged, and she was cut up for scrap. (en)
The landing craft assault was lost sometime in July. (en)
World War II: Convoy HX 54: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean south west of Ireland by . All 25 crew were rescued. (en)
World War II: The cargo ship was bombed and sunk. (en)
World War II: The trawler was bombed and sunk in St George's Channel with the loss of all hands. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of County Donegal, Ireland by with the loss of two of her 45 crew. The survivors were rescued by the trawler Newland . (en)
World War II: The cargo ship was torpedoed and damaged in the Mediterranean Sea at Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on , was beached and was lost there when Tobruk fell in January 1941. She was later salvaged by the British. (en)
World War II: Operation Catapult: The was partially scuttled at Plymouth Dockyard, Devon. Later salvaged by the British and entered service as HMS Mistral. (en)
World War II: The was torpedoed and sunk in the Gulf of Bomba, off Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . (en)
World War II: The cargo ship was torpedoed and sunk in the Gulf of Bomba, off Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . (en)
World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea south of Crete by an Italian submarine. At least 11 of the 18 crew survived. (en)
World War II: The sloop was bombed and damaged at Falmouth, Cornwall by Luftwaffe aircraft and was beached to prevent her sinking. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Land's End, Cornwall, United Kingdom by with the loss of one of her 34 crew. The survivors were rescued by . (en)
World War II: The tanker was torpedoed and sunk in the Atlantic Ocean off Cape Verde, Portugal by . The survivors were rescued by . (en)
World War II: The naval trawler struck a mine in the Irish Sea off Holyhead, Anglesey, and sank with the loss of all 11 crew. (en)
World War II: The cargo ship was shelled and sunk at Bardia, Libya by , , , , and (en)
The was rammed and sunk in the North Sea off Duncansby Head, Scotland by with the loss of 19 of her 154 crew. (en)
The seiner sank five minutes after she was nearly cut in half in a collision in heavy fog with the cannery tender Spencer in Wrangell Narrows in the Alexander Archipelago in Southeast Alaska. Spencer rescued her crew. (en)
World War II: The cargo ship was shelled and sunk in the Bay of Biscay by with the loss of one of her 28 crew. (en)
World War II: Convoy OA 178: The cargo ship was bombed and sunk in the English Channel south south west of Portland Bill, Dorset by Junkers Ju 87 aircraft of StG2, Luftwaffe. 27 crew survived. (en)
World War II: Convoy CW 5: The coaster was bombed and damaged in the English Channel off the Folkestone Gateway Lightship . She was taken in tow by but sank with the loss of three crew. (en)
World War II: The fishing vessel was bombed and sunk in the Atlantic Ocean by Luftwaffe aircraft. (en)
World War II: The cargo ship was torpedoed and sunk in the Mediterranean Sea at Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . She was later salvaged by the British. (en)
World War II: Convoy CW 2: The cargo ship was bombed and sunk in the English Channel south of Start Point, Devon, United Kingdom by Luftwaffe aircraft with the loss of one crew member. (en)
World War II: The tanker was torpedoed and damaged in the Atlantic Ocean by . Athellaird sank the next day. The 42 crew took to their two lifeboats. The British steamer Sandwick rescued 22 from the first lifeboat, a day later. After nine days the 20 men in second lifeboat were rescued by the Moyalla and were landed at Fenit. (en)
World War II: Battle of Cape Spada: The was shelled and immobilized in the Mediterranean Sea off Cape Spada, Crete by . She was then torpedoed and sunk by and with the loss of 121 crewmen, 555 crewmen were rescued by Hyperion and Ilex and made prisoners of war. (en)
World War II: The cargo ship was bombed and sunk in the Mediterranean Sea off Malta by Regia Aeronautica aircraft. Her 26 crew were rescued. (en)
World War II: The cargo ship was shelled and sunk in the South Atlantic by . The crew were taken as prisoners of war. (en)
World War II: The S-class submarine sank while under tow by the minesweepers , , and , after being bombed and damaged the previous day west-southwest of Egersund, Norway, by Dornier Do 17 aircraft of the Luftwaffe and surrendering to German forces. (en)
World War II: The cargo ship struck a mine and sank in the North Sea off Sunderland, Co Durham, United Kingdom with the loss of nine of her 20 crew. (en)
World War II: The was torpedoed and sank off Augusta, Sicily, by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . She was later salvaged, repaired and returned to service. (en)
World War II: The special services ship was sunk as a blockship. (en)
World War II: Convoy CW 7: After being bombed and damaged in the English Channel off Dover, Kent, England, by Luftwaffe aircraft with the loss of one of her 138 crew the previous day, the broke in two and sank at while under tow by . (en)
World War II: The cargo ship was shelled and sunk in the Bay of Biscay by with the loss of one of her 28 crew. (en)
World War II: The coaster was torpedoed and sunk in the English Channel south of Bognor Regis, Sussex by with the loss of six of her nine crew. The survivors were rescued by S-26 and taken as prisoners of war. (en)
World War II: The dredger struck a mine and sank in the Bristol Channel off Cardiff, Glamorgan with the loss of eight crew. (en)
The , fishing vessel was destroyed by fire while moored at a cannery dock at Hoonah, Territory of Alaska. The only person aboard survived. (en)
World War II: The sailing ship was shelled and sunk at Bardia by , , , , and . (en)
World War II: Convoy OB 188: The tanker was torpedoed and sunk in the Atlantic Ocean west of the Outer Hebrides by with the loss of 25 of the 61 people on board. The survivors were rescued by . (en)
World War II: The cargo ship struck a mine off Harwich, Essex and was damaged. She was towed to Hollesley Bay, Suffolk and beached. 13 crew were killed. (en)
World War II: The cargo ship was shelled and sunk in the Atlantic Ocean north west of Cape Finisterre, Spain by with the loss of three of her 39 crew. 21 crew were rescued by . (en)
World War II: The prisoner of war ship was torpedoed and sunk in the Atlantic Ocean north west of Ireland by with the loss of 592 German and Italian 92 troops, and 57 crewmen. The survivors, 586 German/Italian internees, 162 troops and 119 crewmen, were rescued by . (en)
World War II: The anti-submarine yacht was bombed and sunk in the English Channel off Portland, Dorset by Luftwaffe aircraft with the loss of one crewmember. (en)
World War II: The was torpedoed and sunk in the Gulf of Bomba, off Tobruk, Libya by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . (en)
World War II: The troopship was torpedoed and damaged in the Mediterranean Sea at Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm, based on . She was beached to prevent her sinking and was lost there when Tobruk fell in January 1941. (en)
World War II: The auxiliary patrol/examination ship burned and sank in the Caribbean Sea off Plumb Point Lighthouse, Jamaica. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west south west of the Isles of Scilly by with the loss of nine of her 29 crew. (en)
The cargo ship collided with in the Indian Ocean off Socotra, Aden and sank with the loss of 41 crew. (en)
World War II: The Type 1916 minesweeper struck a mine and sank in the North Sea off Hook of Holland. (en)
World War II: The Type VIIB submarine was depth charged and sunk in the Atlantic Ocean south west of Ireland by with the loss of all 43 crew. (en)
World War II: The cargo ship was bombed and sunk in the North Sea off the Aldeburgh Lightship by Luftwaffe aircraft. All crew were rescued by . (en)
World War II: The sloop was bombed and severely damaged in the English Channel off the Isle of Wight by Luftwaffe aircraft. She was consequently withdrawn from front-line service and converted to an accommodation ship. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Barra, Outer Hebrides by with the loss of seven of her 47 crew. The survivors were rescued by . (en)
World War II: The cargo ship was torpedoed and sunk in the Bay of Biscay west south west of Brest, Finistère, France by with the loss of all hands. (en)
World War II: The fleet oiler was bombed and severely damaged at Dover, Kent by Luftwaffe aircraft. She broke in two, and was subsequently used as a blockship. (en)
World War II: Convoy OA 178: The cargo ship was bombed and sunk in the English Channel south of the Isle of Portland, Dorset by Junkers Ju 87 aircraft of Sturzkampfgeschwader 2, Luftwaffe with the loss of one of her 30 crew. (en)
World War II: Convoy CW 7: The cargo ship was bombed and sunk in the English Channel off Dover, Kent by Luftwaffe aircraft. The 17 survivors were rescued by the trawler Lady Pulborough ). (en)
World War II: Convoy OA 178: The cargo ship was bombed and damaged in the English Channel south of Dorset by Junkers Ju 87 aircraft of StG2, Luftwaffe. She collided with and sank. All crew were rescued by . (en)
World War II: The ocean liner was shelled and sunk in the Indian Ocean by . 57 crew and 23 passengers were taken as prisoners of war. 30 of them were lost when (en)
thumb|Mogador World War II: Operation Catapult: The was shelled and sunk by the Royal Navy at Mers-el-Kébir, Algeria with the loss of 18 crew. She was later salvaged, repaired and returned to service. (en)
World War II: Convoy OA 184: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean north west of Bloody Foreland, County Donegal, Ireland by with the loss of 12 of her 33 crew. (en)
World War II: The cargo ship was shelled, torpedoed and sank in the Caribbean Sea north of Guadeloupe by . All the crew were taken as prisoners of war. (en)
World War II: The cargo liner was torpedoed and sank in the Celtic Sea south of County Cork, Ireland by with the loss of four of her thirty-eight crew. (en)
World War II: The tug was bombed and sunk in Portland Harbour by Junkers Ju 87 aircraft of StG2, Luftwaffe. (en)
World War II: The anti-aircraft ship sank with the loss of 176 of her 323 crew after being bombed and damaged the previous day at Portland Harbour, Dorset, England, by Junkers Ju 87 dive bombers of Stukageschwader 2, Luftwaffe. (en)
World War II: The trawler was bombed and sunk in the Atlantic Ocean off Hvalba, Faroe Islands by Luftwaffe aircraft with the loss of one crew member. (en)
World War II: The cargo ship was shelled and sunk in the Caribbean Sea off Trinidad by . The crew were taken as prisoners of war. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Outer Hebrides by . All 32 crew were rescued by , , and . (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of the Orkney Islands by with the loss of three of her 24 crew. The survivors were rescued by . (en)
World War II: The coaster was torpedoed and sunk in the Atlantic Ocean south of the Fastnet Rock by with the loss of all 29 crew. (en)
World War II: The Admiralty-requisitioned cargo ship was scuttled in Skerry Sound, Scapa Flow as a block ship. (en)
World War II: The W-class destroyer was torpedoed and severely damaged in the Atlantic Ocean south west of Ireland by with the loss of 57 crew. The survivors were rescued by , which scuttled the ship with gunfire. (en)
World War II: The cargo ship was bombed and sunk in the North Sea at by Luftwaffe aircraft. (en)
World War II: The fishing vessel struck a mine and sank. (en)
World War II: Convoy HX 57: The whale factory ship struck a mine in the Firth of Forth and sank north east of Inchkeith, Fife with the loss of ten of her 57 crew. (en)
World War II: The naval trawler was bombed and sunk in the English Channel off Dover, Kent with the loss of 18 crew. (en)
World War II: The cargo ship was bombed and sunk in the Atlantic Ocean west of the Isles of Scilly, United Kingdom by Luftwaffe aircraft with the loss of two crew. The survivors were rescued by Roger Jeannine . (en)
World War II: Convoy SL 38: The cargo ship straggled behind the convoy. She was torpedoed and sunk in the Atlantic Ocean west of County Donegal, Ireland by with the loss of 13 of her 39 crew. (en)
World War II: Convoy OB 188: The ocean liner was torpedoed and sunk in the Atlantic Ocean west of Bloody Foreland, Ireland by with the loss of 24 of the 489 people on board. The survivors were rescued by , , and . (en)
World War II: The tanker was torpedoed and sunk in the Atlantic Ocean south west of Land's End, Cornwall, United Kingdom by with the loss of two of her 30 crew. The survivors were rescued by . (en)
World War II: The was torpedoed and sunk off Augusta, Sicily, Italy by with the loss of all 53 crew. (en)
World War II: The Type 1937 schnellboot was sunk by a mine. (en)
World War II: The naval trawler struck a mine and sank in the Thames Estuary east of Bradwell-on-Sea, Essex with the loss of all 13 crew. (en)
World War II: The D-class destroyer sank in Portland Harbour in the early hours of the day after being bombed and damaged off Portland, England, in a Luftwaffe air raid with 14 killed, four missing, and 56 of her 145 crew wounded. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean by . All 35 crew were rescued by and . (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Ireland by with the loss of six of her 94 crew. (en)
World War II: Convoy SL 36: The cargo ship was torpedoed and sunk in the Bay of Biscay west of Ouessant, Finistère, France by with the loss of eight of her 34 crew. Survivors were rescued by . (en)
World War II: The was torpedoed and sunk in the Mediterranean Sea at Tobruk by Fairey Swordfish aircraft of 813 Squadron, Fleet Air Arm from . Her crew lost 21 killed and 20 wounded. (en)
World War II: Operation Lever: The auxiliary minesweeper was torpedoed and sunk at Mers-el-Kébir by aircraft of 810 Squadron, Fleet Air Arm, based on . (en)
World War II: The struck a mine and sank in the English Channel off Newhaven, Sussex. The wreck was sold for scrapping, raised and removed October, 1942. There were 13 survivors. (en)
World War II: The cargo ship was intercepted in the Aegean Sea off Kea Island, while taking military supplies to Italy, by and and was scuttled. (en)
World War II: The cargo ship struck a mine and sank in the Norwegian Sea north of Svåholmen . There were no casualties. (en)
World War II: Operation Lever: The auxiliary patrol boat was torpedoed and sunk by the detonation of her depth charges while tied up alongside , at Mers-el-Kébir, by aircraft of 810 Squadron, Fleet Air Arm, based on with the loss of eight crew. (en)
World War II: The motor yacht was bombed and sunk at Dover, Kent by Luftwaffe aircraft. All crew were rescued. (en)
World War II: The naval trawler was torpedoed and sunk in the English Channel south east of Dover, Kent by with the loss of all 18 crew. (en)
World War II: The special service vessel was sunk as a blockship. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean by with the loss of 11 of her 20 crew. The survivors were rescued by . (en)
World War II: The cargo ship struck a mine and sank in the River Mersey off Southport, Lancashire with the loss of two crew. (en)
World War II: Convoy HX 55: The tanker was torpedoed and damaged in the Atlantic Ocean north west of County Donegal, Ireland by with the loss of nine of her 41 crew. The survivors were rescued by . Scottish Minstrel sank the next day. (en)
World War II: The troopship was torpedoed and sunk in the English Channel by with the loss of 416 of the 1,381 people on board. The survivors were rescued by , , and . (en)
World War II: The cargo ship was bombed and sunk in the Atlantic Ocean north west of Cape Finisterre, Spain by Luftwaffe aircraft with the loss of four of her 36 crew. (en)
World War II: Convoy OA 178: The cargo ship was bombed and sunk in the English Channel off Selsey Bill, Sussex Junkers Ju 87 aircraft of StG2, Luftwaffe. (en)
World War II: The cargo ship was shelled and sunk in the Indian Ocean by with the loss of two of her 83 crew. The survivors were taken as prisoners of war. (en)
World War II: The cargo ship struck a mine and sank in the North Sea off Felixtowe, Suffolk with the loss of 11 crew. (en)
World War II: The Type 1916 minesweeper struck a mine and sank in the North Sea off Hook of Holland, South Holland, Netherlands. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of the Bull Rock, Ireland by with the loss of one of her 23 crew. (en)
thumb|Bretagne World War II: Operation Catapult: The was shelled and sunk at Mers-el-Kébir, Algeria by the Royal Navy with the loss of 977 of her 1,012 crew. (en)
World War II: The cargo ship struck a mine and sank in Belfast Lough with the loss of 11 crew. (en)
The naval trawler sank in the English Channel off Dover with the loss of three crew. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Cape Clear Island, Ireland . All 20 crew were rescued by a Royal Navy destroyer. (en)
World War II: The cargo ship was intercepted in the South Atlantic by and scuttled. (en)
World War II: The fishing vessel struck a mine and sank in the English Channel south of Kemp Town, Sussex with the loss of all four crew. (en)
World War II: The tug struck a mine and sank in the Norwegian Sea off Salhus, Hordaland with the loss of six of her ten crew. (en)
World War II: The fishing vessel struck a mine and sank in the English Channel . Both crew were rescued. (en)
World War II: The cargo ship was scuttled as a blockship at Dover, Kent. (en)
The 23-gross register ton fishing and cargo vessel was destroyed by fire at St. Ivan Harbor in Pavlof Bay on the south coast of the Alaska Peninsula in the Territory of Alaska. Her crew of six survived. (en)
The coaster ran aground on Jæren. Cargo was offloaded and she was refloated the next day. Taken in tow but capsized and sank. (en)
World War II: The cargo ship struck a mine in the Bristol Channel and sank with the loss of 17 crew. (en)
World War II: The cargo ship was torpedoed and sunk off Portland Bill, by and . The survivors were rescued by . (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean by . All 35 crew survived. (en)
World War II: The cargo ship struck a mine and sank in the North Sea east of Frinton-on-Sea, Essex. (en)
The cargo ship ran aground at Tsunoshima, Honshū, Japan and was wrecked. (en)
World War II: The cargo ship was torpedoed and sunk in the Atlantic Ocean west of Cornwall, United Kingdom by . All crew were rescued by a British trawler. (en)
World War II: Convoy CW 8: The cargo ship was torpedoed and sunk in the English Channel off Shoreham, Sussex by with the loss of four crew. (en)
World War II: The cargo ship struck a mine and sank in the Wadden Sea off Borkum, Lower Saxony, Germany. All crew were rescued. (en)
World War II: The transport ship struck a mine and sank in the Baltic Sea off Dragør, Denmark. (en)
World War II: Convoy OB 188: The cargo ship was torpedo and sunk in the Atlantic Ocean by . All 48 crew were rescued by . (en)
The list of shipwrecks in 1940 includes ships sunk, foundered, grounded, or otherwise lost during July 1940.(This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.) (en)
