List of shipwrecks in July 1918

The list of shipwrecks in July 1918 includes ships sunk, foundered, grounded, or otherwise lost during July 1918.

1 July

 * SS Charing Cross (1892) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 4 nmi east by north of Flamborough Head, Yorkshire by SMU UB-40 . Her crew survived.
 * USS Covington (ID-1409) : World War I: Convoy OR 51: The troopship was torpedoed and sunk in the Atlantic Ocean 100 nmi west of Ouessant, Finistère, France (47.51667°N, -7.15°W) by SMU U-86 with the loss of six of her crew.
 *  Monte Cristo (🇫🇷 France): World War I: The four-masted schooner was torpedoed and sunk in the Gulf of Lion (41.93333°N, 4.86667°W) by SMU U-65 (Germany) with the loss of two crew.
 * SS Origen (1918) ( undefined): World War I: The cargo ship was sunk in the Atlantic Ocean 115 nmi west of Ouessant (47.46667°N, -8.33333°W) by SMU U-86 with the loss of a crew member.
 * SS Westmoor (1911) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 210 nmi west of Casablanca, Morocco (34.16667°N, -11.78333°W) by SMU U-91 with the loss of two of her crew. Her captain was taken as a prisoner of war.

2 July

 * ST Admiral ( undefined): World War I: The tug was shelled and sunk in the North Sea 2 nmi north of Flamborough Head, Yorkshire by SMU UB-40 . Her crew survived.
 * Erme ( undefined): World War I: The auxiliary sailing vessel was scuttled in the Atlantic Ocean 240 nmi north west by west of the Fastnet Rock (52.5°N, -16°W) by SMU U-53 . Her crew survived.
 * SS Shirala (1901) ( undefined}): World War I: The cargo ship was torpedoed and sunk in the English Channel 4 nmi north east by east of the Owers Lightship ( undefined) by SMU UB-57 with the loss of eight of her crew.

3 July

 * Agia Trias (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36.08333°N, 22.16667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * Evangelistria (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36.65°N, 22.3°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * Gripen (🇸🇪 Sweden): World War I: The sailing vessel was shelled and sunk in the Skagerrak 5 nmi off the Ryvingen Lighthouse, Vest-Agder, Norway by SMU U-80.
 * Panaghia (🇬🇷 Greece): World War I: The sailing vessel was sunk in the North Sea 36.08333°N, 22.16667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * P. C. Petersen (🇳🇴 Norway): World War I: The sailing vessel was sunk in the North Sea 55 nmi west of Lindesnes, Vest-Agder by SMU U-80 . Her crew survived.

4 July

 * SS Cordova (1905) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea off Taormina, Sicily (37.85°N, 15.41667°W) by SMU UC-52.
 * Mentor (🇳🇴 Norway): World War I: The sailing vessel was torpedoed and damaged in the North Sea 12 nmi east of Hartlepool, County Durham, United Kingdom by SMU UB-21 with the loss of a crew member. She was towed in to port but was a constructive total loss.
 * Napoli ( undefined): World War I: Convoy GaG 36: The ship collided with a vessel from Convoy GaG 37 in the Mediterranean Sea and sank.
 * SMU U-20 (Austria-Hungary) : World War I: The was torpedoed and sunk in the Adriatic Sea (45.48333°N, 13.08333°W) by ITALIAN SUBMARINE F-12  with the loss of all eighteen crew.

5 July

 * Columbia (🇺🇸 United States): The passenger ship capsized and sank in the Illinois River with the loss of 175 lives.
 *  Vera Elizabeth ( undefined): World War I: The auxiliary schooner was shelled and sunk in the Atlantic Ocean 54 nmi south by east of Suðuroy, Faroe Islands (60.7°N, -5.53333°W) by SMU U-60 . Her crew survived.

6 July

 * SS Bertrand (1913) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 28 nmi east south east of Cape Bon, Algeria (36.96667°N, 11.6°W) by SMU UC-67 . Her crew survived.
 * HMS C25 : World War I: The C-class submarine was bombed and damaged in the North Sea off Orford Ness, Suffolk by Luftstreitkrafte aircraft with the loss of four of her crew. She was taken in tow by HMS E51 but was declared a constructive total loss.
 * Gullfaxi (🇩🇰 Iceland): World War I: The fishing vessel was sunk in the Atlantic Ocean south of Iceland by SMU U-53.
 * SS Port Hardy (1907) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 78 nmi west of Cape Spartel, Morocco (35.73333°N, -7.58333°W) by SMU U-91 with the loss of seven of her crew.
 * San Nicola ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea (36.1°N, 25.31667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.

7 July

 * Aby ( undefined): World War I: The fishing vessel was scuttled in the North Sea 25 nmi east by north of Spurn Point, Yorkshire by SMU UB-40 . Her crew survived.
 * Albion ( undefined): World War I: The fishing vessel was scuttled in the North Sea 25 nmi east by north of Spurn Point by SMU UB-40 . Her crew survived.
 * SS Carl (1890) (🇩🇰 Denmark): World War I: The cargo ship was sunk in the Atlantic Ocean south of Ireland (49.33333°N, -9.66667°W) by SMU U-70 with the loss of fourteen crew.
 * SMS G172 : World War I: The struck a mine and sank in the North Sea with the loss of sixteen of her crew.
 * Giuseppino Padre ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea (37.5°N, 18.5°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 *  Marosa (🇳🇴 Norway): World War I: The full-rigged ship was scuttled in the Atlantic Ocean (40°N, -50.58333°W) by SMU U-156 . Her crew survived.
 * SMS S138 : World War I: The struck a mine and sank in the North Sea with the loss of 32 of her crew.
 * Vergine di Lourdes ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea off Sicily by SMU UC-52.

8 July

 * SS Ben Lomond (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 30 nmi south east of the Daunt Rock by SMU U-92 with the loss of 23 crew.
 * SS Chicago (1917) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 4 nmi north east of Flamborough Head, Yorkshire by SMU UB-107 with the loss of three of her crew.
 * SS Horta (1892) (🇵🇹 Portugal): World War I: The cargo ship was sunk in the Strait of Sicily by SMU UC-73 . Her crew survived.
 *  Manx King (🇳🇴 Norway): World War I: The full-rigged ship was scuttled in the Atlantic Ocean (40.08333°N, -52°W) by SMU U-156 . Her crew survived.
 * SS Mars (1907) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 74 nmi west by north of the Bishop Rock, Isles of Scilly (49.73333°N, -8.33333°W) by SMU U-92 . Her crew survived.
 * San Nicola (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Aegean Sea off Andros by SMU UC-37.
 * SS War Crocus ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 2.5 nmi east by north of Flamborough Head by SMU UB-107 . Her crew survived.

9 July

 * HM CMB-2 : The Coastal Motor Boat was lost on this date.
 * Frederika (🇳🇱 Netherlands): World War I: The sailing vessel was sunk in the North Sea 20 nmi off the Maas Lightship (🇳🇱 Netherlands) by SMU UC-70 . Her crew survived.
 * SS Fryken (1905) (🇸🇪 Sweden): World War I: The coaster was sunk in the Humber Estuary (53.45°N, 0.48333°W) by SMU UB-107.
 * SS Silvia (1900) ( undefined): World War I: The cargo ship was sunk in the Atlantic Ocean west of Gibraltar (35.9°N, -7.3°W) by SMU U-91.
 * Tris Adelphi (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35.78333°N, 25.31667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.

10 July

 * SMS A79 : World War I: The struck a mine and sank in the North Sea with the loss of 53 of her crew.
 * Agios Georgios (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35.78333°N, 25.31667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * Agios Loukis (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35.75°N, 25.31667°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * SMS S62 : World War I: The struck a mine and sank in the North Sea with the loss of 27 of her crew.
 * SMS S66 : World War I: The struck a mine and sank in the North Sea with the loss of 76 of her crew.

11 July

 * Agios Constantinos (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35.63333°N, 25.2°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * SS Bacchus (1917) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the Ionian Sea 78 nmi south west of Sapienza (36.41667°N, 20.31667°W) by SMU UB-51 with the loss of 28 crew.
 * SS Kong Guttorm (🇳🇴 Norway): World War I: The coaster was sunk in the English Channel 30 nmi south east of Portland Bill, Dorset, United Kingdom by SMU UB-103 with the loss of eleven of her crew.
 * Marigo (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36.98333°N, 34.13333°W) by SMU U-27 (Austria-Hungary) . Her crew survived.
 * SS Roberto (1875) (🇪🇸 Spain): World War I: The coaster was sunk in the Mediterranean Sea 60 nmi north of Alexandria, Egypt by SMU UC-74 . Her crew survived.
 * USS Westover (ID-2687) : World War I: The cargo ship was sunk in the Atlantic Ocean south of Ireland (46.6°N, -12.35°W) by SMU U-92 with the loss of eleven of her crew.

12 July

 * JAPANESE BATTLESHIP Kawachi : The suffered an onboard explosion and sank at Tokuyama with the loss of 621 of her 1,059 crew. The hulk was subsequently scrapped.

13 July

 * SS Badagri (1907) ( undefined): World War I: The Elder Dempster 2,956 grt cargo ship was torpedoed and sunk in the Atlantic Ocean 425 nmi west north west of Cape St. Vincent, Portugal (35.28333°N, -16.83333°W) by SMU U-91 . Her crew survived, but her captain was taken as a prisoner of war.
 * SS Plawsworth (1917) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 105 nmi west by north of the Bishop Rock, Isles of Scilly (49.6°N, -9.16667°W) by SMU U-60 with the loss of a crew member.
 * SS Ponta Delgada (1891) (🇵🇹 Portugal): World War I: The cargo ship was sunk in the Mediterranean Sea 50 nmi off Oran, Algeria by SMU UC-54 . Her crew survived.
 * SS Ramon de Larrinaga (1889) (🇪🇸 Spain): World War I: The cargo ship was sunk in the Atlantic Ocean 180 nmi off Cape Finisterre by SMU U-92 . Her crew survived.

14 July

 * SS Branksome Hall (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea (68 nmi north west of Marsa Susa, Libya by SMU UB-105 . Her crew survived.
 * SS Djemnah (1874) (🇫🇷 France): World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea of the coast of Libya (33.2°N, 23.91667°W) by SMU UB-105 with the loss of 436 of the 754 people on board.
 * Hagios Zion (🇬🇷 Greece): World War I: The sailboat was sunk in the Aegean Sea (38.33333°N, 25.58333°W) by SMU UC-37.
 * HMT Loch Tummel : The naval trawler was lost on this date.
 * Maria José (🇵🇹 Portugal): World War I: The sailing vessel was sunk in the Bristol Channel 25 nmi south west of Lundy Island, Devon, United Kingdom by SMU UB-65.
 * Maurice (🇫🇷 France): World War I: The sailing vessel was sunk in the Atlantic Ocean off Barra Head, Outer Hebrides, United Kingdom by SMU U-98.
 * SMU UC-77 : World War I: The Type UC II submarine struck a mine and sank in the North Sea off the coast of West Flanders, Belgium.
 * SS Waitemata (1908) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 100 nmi east by north of Marsa Susa (33.2°N, 24.16667°W) by SMU UB-105 . Her crew survived.

15 July

 * SS Barunga (1913) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nmi west by south of the Bishop Rock, Isles of Scilly (49°N, -15°W) by SMU U-108 . All on board survived.
 * SS Cap Breton (1912) (🇫🇷 France): World War I: The cargo ship was sunk in the Gironde Estuary 14 nmi south west of the Cordouan Lighthouse by SMU UB-103.
 * HMS Speedwell II : The Q-ship was lost on this date.
 * SS Vendée (1881) (🇫🇷 France): World War I: The cargo ship was sunk in the Bay of Biscay off Soulac-sur-Mer, Gironde by SMU UB-103.

16 July

 * HMS Anchusa (1916) : World War I: The was sunk in the Atlantic Ocean north of Ireland by SMU U-54  with the loss of 78 of her 93 crew.
 *  Fisherman ( undefined): World War I: The schooner was shelled and sunk in the Atlantic Ocean 380 nmi north west by west of Cabo da Roca, Portugal (40.28333°N, -18.33333°W) by SMU U-91 . Her crew survived.
 * ITALIAN DESTROYER Garibaldino : The was rammed and sunk in the Mediterranean Sea off Villefranche-sur-Mer, Alpes-Maritimes, France by HMS Cygnet (1898).
 * SS Lyndiane (1883) (🇫🇷 France): World War I: The cargo ship was sunk in the Bay of Biscay by SMU UB-103 with the loss of four of her fourteen crew. The submarine then rammed a raft with a number of survivors before departing the area, killing many of them. Eight survivors of the sixteen people on board were rescued by SPANISH DESTROYER Villanil  and some Spanis fishing vessels.
 *  Miefield (🇳🇴 Norway): World War I: The barque was shelled and scuttled in the Atlantic Ocean 82 nmi south west of the Fastnet Rock (50.73333°N, -11.35°W) by SMU U-55 . Her crew survived.
 * SS Southborough (1910) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 5 nmi north by east of Scarborough, Yorkshire by SMU UB-110 with the loss of 30 of her crew.
 * Vanlock (🇸🇪 Sweden): World War I: The sailing vessel was shelled and sunk in the Atlantic Ocean 140 nmi west of Tory Island, County Donegal, United Kingdom by SMU U-92.
 * SS War Swallow ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 72 nmi south west by south of Malta (34.58333°N, 15°W) by SMU UB-50 with the loss of seven crew.

17 July

 * RMS Carpathia ( undefined): World War I: The troopship was torpedoed and sunk in the Celtic Sea 170 nmi west by north of the Bishop Rock, Isles of Scilly (50.41667°N, -10.81667°W) by SMU U-55 with the loss of five of the 280 people on board. Survivors were rescued by HMS Snowdrop (1915).
 * SS Harlseywood (1907) ( undefined): World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean south west of Hartland Point, Devon by SMU U-60 . She was beached but was later refloated.
 * SS Saint Georges (1891) (🇫🇷 France): World War I: The coaster was torpedoed and sunk in the Atlantic Ocean 15 nmi south west of Hartland Point (50.78333°N, -4.63333°W) by SMU U-60 . Her crew survived.

18 July

 * HMT Lance II : The naval trawler sank in the English Channel 3.2 nmi south west of Newhaven, East Sussex.

19 July

 * SS Adria 1 (1877) ( undefined): World War I: The cargo ship was sunk in the Strait of Sicily (37.16667°N, 11.2°W) by SMU UB-50 . Her crew survived.
 * SS Australien (1889) (🇫🇷 France): World War I: The passenger ship was sunk in the Mediterranean Sea 26 nmi north east of Cap Bon, Tunisia by SMU UC-54 with the loss of three of her 951 passengers and seventeen of her crew.
 * HM CMB-50 : The Coastal Motor Boat was lost on this date.
 * SS Eguskia (1875) (🇪🇸 Spain): World War I: The cargo ship was sunk in the Mediterranean Sea 70 nmi north of Bardia, Libya by SMU UB-105 . Her crew survived.
 * SS Justicia ( undefined): World War I: The troopship was torpedoed and damaged in the Atlantic Ocean off Malin Head, County Donegal by SM UB-64 . She was taken in tow but was torpedoed and sunk the next day (55.63333°N, -7.65°W) by SM UB-124 with the loss of ten of her crew.
 * Ranger ( undefined): World War I: The auxiliary sailing vessel was scuttled in the Atlantic Ocean 20 nmi north west of Barra Head, Outer Hebrides by SMU UB-64 . Her crew survived.
 * USS San Diego (CA-6) : World War I: The struck a mine and sank in the Atlantic Ocean off the Fire Island Lightship  with the loss of six of her 830 crew.
 * SMU UB-110 : World War I: The Type UB III submarine was depth charged, rammed and sunk in the North Sea (54.65°N, 0.91667°W) by HMS Garry (1905) with the loss of thirteen of her crew.

20 July

 * HMS E34 : World War I: The E-class submarine struck a mine and sank in the Wadden Sea between Texel, North Holland and Vlieland, Friesland, Netherlands with the loss of all 30 crew.
 * SS Gemini (1892) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nmi north west of the Godrevy Lighthouse, Cornwall (50.28333°N, -5.6°W) by SMU U-60 with the loss of two crew.
 *  Hermes (🇩🇰 Denmark): World War I: The three-masted schooner was sunk in the North Sea 40 nmi west of Bergen, Hordaland, Norway by SMU U-113 . Her crew survived.
 * SS Kosseir (1884) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 40 nmi north east by north of Alexandria, Egypt (31.75°N, 30.18333°W) by SMU UB-51 with the loss of 39 crew.
 * SS Orfordness (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 2.5 nmi west by north of Newquay, Cornwall (50.4°N, -5.18333°W) by SMU U-60 with the loss of two crew.
 * SMU UB-124 : World War I: The Type UB III submarine was depth charged and damaged in the Atlantic Ocean off the coast of Ireland. She was consequently scuttled with the loss of two of her crew.

21 July

 *  Anna (🇩🇰 Denmark): World War I: The barquentine was sunk in the North Sea 35 nmi off Bergen, Hordaland, Norway by SMU U-113 . Her crew survived.
 * SS Arvor (1909) (🇫🇷 France): World War I: The coaster was sunk in the Atlantic Ocean 27 nmi north of Ouessant, Finistère (48.91667°N, -4.15°W) by SMU UB-103.
 * Kongen (🇳🇴 Norway): World War I: The sailing vessel was damaged in the North Sea 70 nmi south west of Lindesnes, Rogaland by SMU UB-113 . She was abandoned by her crew. The derelict was scuttled on 5 August by HMS G1.
 *  Lansford (🇺🇸 United States): World War I: The schooner barge was sunk in the Atlantic Ocean 3 nmi off Orleans, Massachusetts by SMU U-156.
 * SS Mongolian (1891) ( undefined): World War I: The passenger ship was torpedoed and sunk in the North Sea 5 nmi south east of Filey, Yorkshire (54.16667°N, -0.96667°W) by SMU UC-70 with the loss of 36 lives.
 * 703 (🇺🇸 United States) World War I: The schooner barge was sunk in the Atlantic Ocean 3 nmi off Orleans, Massachusetts by SMU U-156.
 * 740 (🇺🇸 United States) World War I: The schooner barge was sunk in the Atlantic Ocean 3 nmi off Orleans, Massachusetts by SMU U-156.
 * 766 (🇺🇸 United States): World War I: The barge was sunk in the Atlantic Ocean 3 nmi off Orleans, Massachusetts by SMU U-156 . Her crew survived.

22 July

 * HMT Ijuin : World War I: The naval trawler was shelled and sunk in the Mediterranean Sea off Alexandria, Egypt (32.7°N, 28.41667°W) by SMU UB-51 . Her crew survived.
 * L 1 : World War I: The barge was sunk in the Mediterranean Sea (32.61667°N, 28.65°W) by SMU UB-51 . Her crew survived.
 *  Robert & Richard (🇺🇸 United States): World War I: The schooner was scuttled in the Atlantic Ocean 60 nmi south east of Cape Porpoise, Maine by SMU U-156 . Her crew survived.

23 July

 * SS Anna Sofie (1896) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 4 nmi north of Trevose Head, Cornwall by SMU U-55  with the loss of a crew member.
 * HMS Marmora : World War I: The armed merchant cruiser was sunk in the Atlantic Ocean south of Ireland (50.4°N, -8.8°W) by SMU UB-64 with the loss of ten of her crew.
 * SS Messidor (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 73 nmi south east by south of Port Mahon, Spain by SMU UB-50 with the loss of a crew member.

24 July

 * SS Kilkis (1906) (🇬🇷 Greece): World War I: The cargo ship was torpedoed and sunk in the North Sea 6 nmi off the South Gare Lightship ( undefined) (54.7°N, -1.01667°W) by SMU UC-70.
 * HMT Lochiel : World War I: The naval trawler was either torpedoed or struck a mine and sank in the North Sea (54.60833°N, -0.06667°W) with the loss of twelve of her crew.
 * HMS Pincher (1910) : The ran aground on the Seven Stones reef and was wrecked.
 * SS Rutherglen (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 50 nmi east south east of Port Mahon, Spain by SMU UB-50 . Her crew survived.

25 July

 *  Asta (🇩🇰 Denmark): World War I: The three-masted auxiliary schooner was shelled and sunk in the Atlantic Ocean 600 nmi west north west of the Hebrides, United Kingdom by SMU UB-89 with the loss of five of her crew.
 * SS Indore (1898) ( undefined): World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean 20 nmi north north west of Rathlin Island, County Donegal by SMU UB-62 with the loss of two of her crew. She was beached but was later refloated.
 * SS Magellan (1893) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 53 nmi north of Cape Serrat, Tunisia by SMU UB-50 with the loss of a crew member.
 * SS Tippecanoe (1914) (🇺🇸 United States): World War I: The cargo ship was sunk in the Atlantic Ocean 550 nmi off Brest, Finistère, France (40.95°N, -15.41667°W) by SMU U-91 with the loss of one of her crew.

26 July

 * SS Blairhall (1899) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 3.5 nmi north east of Sunderland, County Durham by SMU UC-40 with the loss of a crew member.
 * Boy Jack ( undefined): World War I: The fishing smack was scuttled in the North Sea 4 nmi east of the Cross Sands Lightship ( undefined) by SMU UB-40 with the loss of three of her crew.
 * Godesgenage (🇧🇪 Belgium): World War I: The fishing vessel was scuttled in the North Sea off the Cross Sands Lightship by SMU UB-40.
 * SS Monastir (🇫🇷 France): World War I: The tanker was torpedoed and damaged in the Strait of Kasos (35°N, 27°W) by SM UC-74 . She was beached in Poro Bay, Crete. Monastir was later repaired and returned to service.

27 July

 *  Antonio S ( undefined): World War I: The barquentine was shelled and sunk in the Mediterranean Sea (35.45°N, 11.15°W) by SMU UB-50.
 * SS Chloris (1904) ( undefined): World War I: The coaster was torpedoed and sunk in the North Sea 17 nmi south by east of Flamborough Head, Yorkshire (53.86667°N, 0.16667°W) by SMU UB-107 with the loss of three of her crew.
 * Counsellor ( undefined): World War I: The fishing smack was scuttled in the North Sea 2.5 nmi north of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * SS Crimdon (1878) (🇸🇪 Sweden): World War I: The cargo ship was torpedoed and sunk in the North Sea 2.5 nmi east of the Whitby Lighthouse, Yorkshire by SMU UC-40 with the loss of four of her crew.
 * Fear Not ( undefined): World War I: The fishing smack was scuttled in the North Sea 14 nmi north north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * I'll Try ( undefined): World War I: The fishing smack was scuttled in the North Sea 12 nmi north north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * SS John Rettig (1915) (🇸🇪 Sweden): World War I: The cargo ship was sunk in the North Sea 18 nmi south of Flamborough Head by SMU UB-107.
 * SS Kirkham Abbey (1908) ( undefined): World War I: The cargo liner was torpedoed and sunk in the North Sea 2 nmi off Winterton, Norfolk (52.73333°N, 1.7°W) by SMU UB-40 with the loss of eight lives.
 * Le Bijou ( undefined): World War I: The fishing smack was scuttled in the North Sea 9 nmi north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * Paragon ( undefined): World War I: The fishing smack was scuttled in the North Sea 8 nmi north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * Passion Flower ( undefined): World War I: The fishing smack was scuttled in the North Sea 14 nmi north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 *  Porto (🇵🇹 portugal): World War I: The barque was scuttled in the Atlantic Ocean 340 nmi off Cape Sable, Florida (39.3°N, -60.66667°W) by SMU U-140 . Her crew survived.
 * SS Subadar (1912) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 112 nmi north by west of the Cape da Roca, Portugal by SMU U-43 (Germany) with the loss of three crew.
 * Success ( undefined): World War I: The fishing smack was shelld and sunk in the North Sea 7 nmi north north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * Valour ( undefined): World War I: The fishing smack was scuttled in the North Sea 14 nmi north north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.

28 July

 * Francis Robert ( undefined): World War I: The fishing smack was shelled and sunk in the North Sea 8 nmi north east of the Haisborough Lightship ( undefined) by SMU UB-40 . Her crew survived.
 * SS Hyperia (1895) ( undefined): World War I: The troopship was torpedoed and sunk in the Mediterranean Sea 84 nmi north west by north of Port Said, Egypt (32.35°N, 31.41667°W) by SMU UB-51  with the loss of 65 lives.

29 July

 * SS Rio Pallaresa (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 62 nmi east north east of Malta by SMU UC-25 with the loss of two of her crew.

30 July

 * HMS Stock Force : World War I: The Q-ship was torpedoed and damaged in the English Channel 25 nmi west of Start Point, Devon (49.81667°N, -3.88333°W) by SMU UB-80 . She counter-attacked and severely damaged SM UB-80, earning her commander Harold Auten a Victoria Cross. HMS Stock Force later sank in Bigbury Bay.

31 July

 * Alkor (🇳🇴 Norway): World War I: The sailing vessel was sunk in the North Sea off the south coast of Norway by SMU U-98 . Her crew survived.
 * HMT City of Liverpool : World War I: The naval trawler struck a mine and sank in The Downs with the loss of ten of her crew.
 * USS C. F. Sargent : The collier foundered off the Hen and Chicken Shoals.

Unknown date

 * USS Oosterdijk (ID-2586) : The cargo ship collided with SS San Jacinto (1903) (United States) in the Atlantic Ocean on 9, 10 or 11 July. She foundered on 10 or 11 July. Her crew were rescued by ''San Jacinto.
 * SMU UB-65 : World War I: The Type UB III submarine was lost in the Bristol Channel off Padstow, Cornwall, United Kingdom on or after 14 July with the loss of all 37 crew.
 * SMU UB-108 : World War I: the Type UB III submarine struck a mine and sank in the North Sea off the coast of Belgium with the loss of all 36 crew.