List of shipwrecks in January 1918

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

1 January

 * SS Egyptian Transport (1914) ( undefined): World War I: The cargo ship was damaged in the Mediterranean Sea by SMU UB-50 with the loss of five of her crew. She was beached near Bône, Algeria. Later refloated, repaired and returned to service.
 * SS Eriksholm (1901) (🇸🇪 Sweden): World War I: The cargo ship was torpedoed and sunk in the North Sea south of Aberdeen, United Kingdom (57.16667°N, -1.85°W) by SMU UC-58.
 *  E. S. Hocken ( undefined): The schooner was set afire and abandoned in the Atlantic Ocean. Her crew were rescued.
 * SS Sandon Hall (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 22 nmi north north east of Linosa, Italy (36.25°N, 13°W) by SMU U-40 (Austria-Hungary) . Her crew survived.

2 January

 * SS Boston City (1917) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 11 nmi west of St. Ann's Head, Pembrokeshire (51.66667°N, -5.43333°W) by SMU U-91 . Her crew survived.
 * SS Christos Markettos (1892) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 4 nmi north west of Gurnard's Head, Cornwall, United Kingdom (50.21667°N, -5.7°W) by SMU U-95 . Her crew survived.
 * SS Gallier (1914) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nmi east north east of the Wolf Rock, Cornwall (50°N, -5.65°W) by SMU U-95 . Her crew survived.
 * HMS Hirpa : The whaler was lost on this date.
 * SS Nadejda (1896) (Flag of Russian SFSR.svg Russia): World War I: The cargo ship was sunk in the Irish Sea 25 nmi south west of the Chicken Rock, Isle of Man by SMU U-19 (Germany) . Her crew survived.
 * Veda ( undefined): World War I: The fishing smack was shelled and sunk in the Atlantic Ocean 30 nmi south south west of the Eddystone Lighthouse by SMU U-93 . Her crew survived.

3 January

 * SS Allanton (1901) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 20 nmi north of Cape Bon, Algeria (37.43333°N, 11°W) by SMU UB-50 . Her crew survived.
 * SS Asborg (1896) (🇳🇴 Norway): World War I: The cargo ship was torpedoed and sunk in the English Channel 3 nmi south east by east of St. Catherine's Point, Isle of Wight (50.51667°N, -1.26667°W) by SMU UC-75 . Her crew survived.
 * SS Birchwood (1910) ( undefined): World War I: The collier was torpedoed and sunk in the Atlantic Ocean 25 nmi east of the Blackwater Lightship ( undefined) by SMU U-61 . Her crew survived.
 * HMS Blackwhale : World War I: The patrol vessel struck a mine and sank in the North Sea off Fife Ness (56.31667°N, -0.75°W) with the loss of twelve of her crew.
 * SS Gartland (1892) ( undefined): World War I: The collier was torpedoed and sunk in the English Channel 5 nmi east south east of the Owers Lightship ( undefined) by SMU UB-30 with the loss of two of her crew.
 * SS Steelville (1915) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 20 nmi north of Cape Bon (37.41667°N, 11.1°W) by SMU UB-50 . Her crew survived.

4 January

 * Day Spring ( undefined): World War I: The fishing smack was scuttled in the English Channel 8 nmi south east of Berry Head, Devon by SMU UC-75 . Her crew survived.
 * FRENCH TRAWLER Goeland I : World War I: The naval trawler was shelled and sunk in the Bay of Biscay off Penmarc'h, Finistère, France by SMU U-93 with the loss of sweven of her crew.
 * HMT Golden Sunset : The naval trawler collided with another vessel and sank in the English Channel off the Shambles Lightship ( undefined).
 * Gratitude ( undefined): World War I: The fishing vessel was scuttled in the English Channel 8 nmi south east of Berry Head by SMU UC-75 . Her crew survived.
 *  Otto ( undefined): World War I: The schooner was shelled and sunk in the Irish Sea 10 nmi south south west of St. John's Point, County Down (54.18333°N, -5.53333°W) by SMU U-91 . Her crew survived.
 * SS Regina Elena (1907) ( undefined): World War I: The passenger ship was sunk in the Mediterranean Sea off Tripoli, Libya by SMU UC-20.
 *  ( undefined): World War I: The hospital ship was torpedoed and sunk in the Bristol Channel 19 nmi west of Hartland Point, Devon (50.91667°N, -4.81667°W) by SMU U-55 with the loss of four of the 566 people on board.
 * Varuna ( undefined): World War I: The fishing smack was scuttled in the English Channel 15 nmi east south east of Berry Head by SMU UC-75 . Her crew survived.

5 January

 * SS Birtley (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 8 nmi north of Flamborough Head, Yorkshire by SMU UB-38 with the loss of eighteen of her crew.
 * SS Glenarm Head (1897) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 5 nmi west by south of the Brighton Lightship (50.56667°N, -0.2°W) by SMU UB-30 with the loss of two of her crew.
 * SS Iolanthe (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 10 nmi south east by east of Portland Bill, Dorset (50.46667°N, -2.2°W) by SMU UC-75 . Her crew survived.
 * SS Knightsgarth (1905) ( undefined): World War I: The collier was torpedoed and sunk in the Bristol Channel 5 nmi west north west of the Bull Point Lighthouse, Devon by SMU U-91 with the loss of two of her crew.
 * SS Rio Claro (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Gulf of Genoa 2 nmi of Riva Trigoso, Liguria, Italy (44.21667°N, 9.48333°W) by SMU U-63 (Germany) . Her crew survived. The stern section of the ship was refloated in March 1919 and subsequently returned to service with a new bow.
 * SS Rose Marie (1916) ( undefined): World War I: The collier was torpedoed and sunk in the Atlantic Ocean 13 nmi south east of the North Arklow Lightship ( undefined) by SMU U-61 with the loss of a crew member.
 * SS War Baron ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 8 nmi north east of the Godrevy Lighthouse, Cornwall (50.3°N, -5.58333°W) by SMU U-55 with the loss of two lives.

6 January

 * SS Dagny (1901) (🇩🇰 Denmark): World War I: The cargo ship was toepedoed and sunk in the Bay of Biscay 4 nmi south south west of Penmarc'h, Finistère, France by SMU U-93 with the loss of two of her crew.
 * SS Halberdier (1915) ( undefined): World War I: The cargo ship was torpedoed and sunk in St. George's Channel 27 nmi west by north of Bardsey Island, Pembrokeshire by SMU U-61 with the loss of five crew.
 * SS Harry Luckenbach (1881) (🇺🇸 United States): World War I: The tanker was sunk in the Bay of Biscay 2 nmi off Penmarc'h by SMU U-93 with the loss of eight of her crew.
 * SS Henri Le Cour (1917) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 9 nmi off Penmarc'h (47.75°N, -4.46667°W) by SMU U-93.
 * SS Kanaris (1901) (🇬🇷 Greece): World War I: The cargo ship was sunk in the Bay of Biscay off Penmarc'h (47.73333°N, -4.21667°W) by SMU U-93 . Her crew survived.
 * FRENCH TRAWLER Saint Mathieu : World War I: The naval trawler was shelled and sunk in the Bay of Biscay off the Île d'Yeu, Vendée by SMU U-22 (Germany) with the loss of eight crew.
 * SS Spenser (1910) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 35 nmi north east of the Tuskar Rock, Ireland by SMU U-61 . Her crew survived.

7 January

 * SS Arab (1890) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 18 nmi north by east of Cape Serrat, Tunisia (37.46667°N, 9.38333°W) by SMU UB-50 with the loss of 21 of her crew.
 * SS Egda (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean 15 nmi off the Tuskar Rock, Ireland (52.23333°N, -5.66667°W) by SMU U-110 with the loss of a crew member.
 * SS Gascony (1908) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 10 nmi south south east of the Owers Lightship ( undefined) by SMU UC-75 . Her crew survived.
 * SS Leon (1895) (🇫🇷 France): World War I: The cargo ship was sunk in the English Channel 13 nmi north north east of the Triagoz Lighthouse, Finistère by SMU UC-75 . Her crew survived.
 * SS Oued Sebou (1897) (🇫🇷 France): World War I: The troopship was sunk in the Atlantic Ocean 4 nmi off Cape Bojador, Rio de Oro (26.5°N, -14.28333°W) by SMU U-157 . Her crew survived.
 * Premier ( undefined): World War I: The drifter was shelled and sunk 3 nmi off Loch Eynort (57.21667°N, -6.46667°W) by SMU U-91 with the loss of two of her crew.
 * SMU UC-50 : World War I: The Type UC II submarine departed for a patrol in the Bay of Biscay. Subsequently lost with the loss of all 29 crew.

8 January

 * SS San Guglielmo (1911) ( undefined): World War I: The passenger ship was sunk in the Gulf of Genoa off Loano, Liguria (44.11667°N, 8.3°W) by SMU U-63 (Germany).

9 January

 * SS Bayvoe (1894) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 10 nmi south of the Glénan Islands, Finistère, France (47.5°N, -4.01667°W) by SMU U-84 with the loss of four of her crew.
 * HMS Racoon (1910) : The was lost in the Atlantic Ocean off the Garvan Isles, County Donegal.
 * SS Taiyabi (1889) ( undefined): The collier foundered in St. George's Channel.
 * SMU UB-69 : World War I: The Type UB III submarine was depth charged and sunk in the Mediterranean Sea off Bizerte, Algeria (37.5°N, 10.63333°W) with the loss of all 31 crew.
 * SS Ula (1898) (🇳🇴 Norway): World War I: The coaster was torpedoed and sunk in the English Channel 10 nmi east south east of The Lizard, Cornwall, United Kingdom (49.91667°N, -5.78333°W) by SMU U-55 . Her crew survived.

10 January

 * SS Atlas (1906) (🇳🇱 Netherlands): World War I: The cargo ship was sunk in the Atlantic Ocean 25 nmi off Fuertaventura, Canary Islands, Spain (28.53333°N, -12.86667°W) by SMU U-156.
 * SS Cardiff (1898) ( undefined): World War I: The cargo ship was torpedoed and damaged in the Bay of Biscay 20 nmi south west of Lorient, Morbihan, France by SMU U-84 with the loss of eight of her crew. She was beached but was later refloated.
 * SS Hulda Maersk (1889) (🇩🇰 Denmark): World War I: The cargo ship was scuttled in the Atlantic Ocean 24 nmi off Cape Bojador, Rio de Oro (26.43333°N, -14.46667°W) by SMU U-157 . Her crew survived.
 *  Portland ( undefined): The auxiliary schooner caught fire and sank in the Atlantic Ocean off the coast of Portugal. Her crew were rescued.
 *  Ydun (🇸🇪 Sweden): The schooner was abandoned in the North Sea off Stavanger, Rogaland, Norway. She came ashore at Ulboer, Rogaland and was wrecked.

11 January

 * SS Barsac (1902) (🇫🇷 France): World War I: The cargo ship was sunk in the English Channel 18 nmi north west of Cap de la Hève, Seine-Maritime by SMU UB-80.
 * JAPANESE CRUISER Kasagua : The ran aground in the Bangka Strait. She was refloated in June, repaired and returned to service.
 * HMML 356 : The motor launch was lost on this date.

12 January

 * SS Adolph Meyer (1880) (🇸🇪 Sweden): World War I: The coaster struck a mine and sank in the North Sea south east of Peterhead, Aberdeenshire, United Kingdom with the loss of all seventeen crew.
 * SS Bosforo (1878) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Spartivento, Sardinia (37.9°N, 16.1°W) by SMU U-28 (Austria-Hungary) . Her crew survived.
 * SS Château Laffite (1914) (🇫🇷 France): World War I: The cargo ship was sunk in the Bay of Biscay 1.5 nmi off Penmarc'h, Finistère (47.58333°N, -4.66667°W) by SMU U-84.
 * SS Genevieve (1912) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 12 nmi north west of St Ives, Cornwall, United Kingdom (50.38333°N, -5.33333°W) by SMU U-55.
 * SS Mica (1916) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the Aegean Sea 7 nmi west of Milos, Greece (37.15°N, 23.75°W) by SMU U-47 (Austria-Hungary) with the loss of six of her crew.
 * HMS Narborough (1916) : The ran aground on the Pentland Skerries and sank with the loss of 188 of her 189 crew.
 * HMS Opal (1915) : The ran aground on the Pentland Skerries and sank with the loss of all 80 crew.
 * SS Whorlton (1907) ( undefined): World War I: The cargo ship was sunk in the English Channel off the Owers Lightship ( undefined) (50.56667°N, -0.75°W) by SMU UB-30 with the loss of all thirteen crew.

13 January

 * SS Rapallo (1917) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 1.5 nmi south of Cape Peloro, Sicily, Italy (38.08333°N, 15.56667°W) by SMU U-28 (Austria-Hungary) with the loss of a crew member.

14 January

 * SS Alster (1909) ( undefined): World War I: The coaster was torpedoed and sunk in the North Sea 5 nmi east south east of Noss Head, Shetland Islands by SMU UB-62 . Her crew survived.
 * SS Arthur Capel (1911) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the English Channel 14 nmi north west of Barfleur, Manche (49.86667°N, -0.78333°W) by SMU UB-80 . Her crew survived.
 *  Babin Chevaye (🇫🇷 France): World War I: The barque was sunk in the Bay of Biscay 30 nmi west south west of Penmarc'h, Finistère (47.6°N, -5.11667°W) by SMU U-93 . Her crew survived.
 * SS Centauro (🇬🇷 Greece): The cargo ship ran aground at Estepona, Andalusia, Spain and was wrecked.
 * HMS G8 : The G-class submarine was lost in the North Sea on this date.
 * Miranda ( undefined): The trawler was wrecked in Pelwick Bay.
 * SMU UB-63 : World War I: The Type UB III submarine departed for a patrol in the North Sea and Irish Sea. No further trace, lost with all 33 crew.

15 January

 * SS Bonanova (1880) (🇪🇸 Spain): World War I: The coaster was damaged in the Mediterranean Sea 8 nmi off Cape Farrara (43.18333°N, 4.61667°W) by SMU U-63 (Germany) . She was towed into Marseille, Bouches-du-Rhône, France where she was declared a constructive total loss.
 * HMT Ethnee : The naval trawler was lost on this date.
 * HMML 278 : The motor launch was lost on this date.
 * SS Spital ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 28 nmi south west by west of St Anthony Head, Cornwall by a Kaiserliche Marine submarine.
 * SS War Song ( undefined): World War I: The cargo ship was shelled and sunk in the Bay of Biscay 12 nmi west of the Île de Sein, Finistère, France (48.03333°N, -5.16667°W) by SMU U-93 with the loss of sixteen of her crew.
 * SS Westpolder (1917) (🇳🇱 Netherlands): World War I: The cargo ship struck a mine and sank in the North Sea west of Scheveningen, South Holland (52.18333°N, 3.95°W). Six of her eighteen crew were killed.

16 January

 * HMT John E. Lewis : World War I: The naval trawler struck a mine and sank in the North Sea off the Cork Lightship ( undefined) (51.9°N, 1.4°W) with the loss of two of her crew.

17 January

 * SS Kingsdyke (1888) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 20 nmi north east by east of Cape Barfleur, Manche, France by SMU UB-80 with the loss of sixteen of her crew.
 * SS Windsor Hall (1910) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 45 nmi north west of Alexandria, Egypt by SMU UB-66 with the kloss of 27 crew. Her captain was taken as a prisoner of war.

18 January

 * HMS Blackcock : The Admiralty tug ran aground near Tsip Navalock, Russia and was abandoned. She was later crushed by ice and sank.
 * HMT Gambri : World War I: The naval trawler struck a mine and sank in the English Channel 0.75 nmi off the Royal Sovereign Lightship ( undefined) with the loss of 21 of her crew.
 *  Maria P. ( undefined): World War I: The barquentine was shelled and sunk in the Mediterranean Sea 75 nmi west of Cape Mannu, Sardinia, Italy (39.86667°N, 6.6°W) by SMU U-63 (Germany) . Her crew survived.
 * Svobodnaya Rossiya : World War I: The was scuttled at Novorossiysk by RUSSIAN DESTROYER Kerch.
 * SS Ville de Bordeaux (1911) : World War I: The troopship was sunk in the Mediterranean Sea off Cape Caccia, Sardinia (40.48333°N, 6.81667°W) by SMU U-63 (Germany) with the loss of eight lives.

19 January

 * HMS H10 : The H-class submarine was lost in the North Sea.
 * SS Trocas (1893) ( undefined): World War I: The tanker was torpedoed and sunk in the Aegean Sea 10 nmi north east of the Skyro Lighthouse, Greece by SMU UC-23 with the loss of 24 of her crew.
 * SMU UB-22 : World War I: The Type UB II submarine struck a mine and sank in the Heligoland Bight (54.45°N, 6.58333°W) with the loss of all 22 crew.

20 January

 * SMS A73 : World War I: The struck a mine and sank in the North Sea off Jutland, Denmark with the loss of 40 of her 57 crew.
 * SMS A77 : World War I: The struck a mine and sank in the North Sea off Jutland with the loss of all 33 crew.
 * Faustina B. ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea east of Sardinia by SMU UC-67.
 * Hirondelle (🇫🇷 France): World War I: The sailing vessel was sunk in the English Channel north of Le Tréport, Seine-Maritime by SMU U-55.
 * HMS M28 : World War I: Battle of Imbros: The was shelled and sunk by OTTOMAN CRUISER Midilli and OTTOMAN BATTLECRUISER Yavûz Sultân Selîm (both ) with the loss of eleven of her 69 crew.
 * HMS Mechanician : World War I: The escort ship was torpedoed and sunk in the English Channel 8 nmi west of St. Catherine's Point, Isle of Wight by SMU UB-35 with the loss of thirteen of her crew.
 * OTTOMAN CRUISER Midilli : World War I: The struck five mines and sank in the Ionian Sea with the loss of 330 of her 492 crew.
 * HMS Raglan : World War I: Battle of Imbros: The was shelled and sunk by OTTOMAN CRUISER Midilli and OTTOMAN BATTLECRUISER Yavûz Sultân Selîm (both ) with the loss of 127 of her 198 crew.
 * SMS S16 : World War I: The struck a mine and sank in the North Sea with the loss of 80 of her crew.
 * OTTOMAN BATTLECRUISER Yavûz Sultân Selîm : World War I: The struck three mines in the Ionian Sea and was beached at Nagara Point, at the entrance to the Dardanelles. She was later repaired and returned to service.

21 January

 * HMS Louvain : World War I: The armed boarding steamer was torpedoed and sunk in the Aegean Sea (37.63333°N, 24.16667°W) by SMU UC-22 with the loss of 227 lives.
 * Maria Caterina (🇳🇱 Netherlands): The fishing vessel was shelled and sunk in the North Sea (52.78333°N, 3.46667°W) by SMU U-55 with the loss of all seven crew.
 * SS Teelin Head (1883) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 12 nmi south south west of the Owers Lightship by SMU UC-30 with the loss of thirteen of her crew.
 * SS West Wales (1912) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 140 nmi south east by south of Malta (34°N, 16.83333°W) by SMU U-28 (Austria-Hungary) with the loss of two of her crew.

22 January

 * SS Andrea Costa (1899) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Malta by SMU U-27 (Austria-Hungary).
 * SS Anglo-Canadian (1901) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 33 nmi south of Malta (35.25°N, 15.08333°W) by SMU U-63 (Germany) with the loss of three crew.
 * SS Greatham (1890) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 3 nmi south east of Dartmouth, Devon by SMU UB-31 with the loss of seven crew.
 * SS Manchester Spinner (1903) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 33 nmi south of Malta (35.25°N, 15.08333°W) by SMU U-63 (Germany) . Her crew survived.
 * SS Molina (1905) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel 3 nmi west of St. Catherine's Point, Isle of Wight, United Kingdom (50.56667°N, -1.48333°W) by SMU UB-35 . Her crew survived.
 * SS Serrana (1905) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 10 nmi west of St. Catherine's Point by SMU UB-35 with the loss of five of her crew.
 * SS Victor De Chavarri (1891) (🇪🇸 Spain): World War I: The cagro ship was torpedoed and sunk in the English Channel 7.5 nmi north west of Cherbourg, Manche, France (49.8°N, -1.75°W) by SMU U-90.

23 January

 * SS Ålesund (1890) (🇳🇴 Norway): World War I: The coaster was torpedoed and sunk in the English Channel 12 nmi south west by west of St. Catherine's Point, Isle of Wight, United Kingdom (50.46667°N, -1.55°W) by SMU UC-71 with the loss of six of her crew.
 * SS Birkhall (1900) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Aegean Sea 4 nmi south east of Cape Kafireas, Euboea, Greece by SMU UC-23 with the loss of two of her crew.
 * FRENCH TRAWLER Kerbihan : World War I: The naval trawler struck a mine and sank in the Mediterranean Sea between Pomègues and Cap Croisette, Bouches-du-Rhône (43.23333°N, 5.31667°W) by SMU UC-67.
 * FRENCH SUPPLY SHIP La Drôme : World War I: The supply ship struck a mine and sank in the Mediterranean Sea off Marseille, Bouches-du-Rhône (43.23333°N, 5.31667°W) by SMU UC-67 with the loss of 26 of her 60 crew.
 * SS Portaferry ( undefined): The coaster ran aground. She broke up on 3 March and was a total loss.

24 January

 * Aghia Arene (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Aegean Sea off Skyros (39.15°N, 25.28333°W) by SMU UC-23.
 * Aghios Johannes (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Aegean Sea off Skyros (39.15°N, 25.3°W) by SMU UC-23.
 * SS Antonios J. Dracoulis (1906) (🇬🇷 Greece): World War I: The cargo ship was sunk in the Mediterranean Sea off Alexandria, Egypt by SMU U-33 (Germany).
 * Apostoles Andreas ( undefined): World War I: The sailing vessel was shelled and sunk in the Mediterranean Sea off Alexandria by SMU U-33 (Germany).
 *  Charles ( undefined): World War I: The schooner was shelled and sunk in the English Channel 16 nmi south west of the Casquets, Channel Islands (49.5°N, -2.75°W) by SMU U-90 with the loss of one of her crew. Three survivors were taken as prisoners of war.
 * SS Corse (1894) : World War I: The troopship was sunk at La Ciotat, Bouches-du-Rhône by SMU UC-67 . Her crew survived.
 * HMS Desire : World War I: The naval tug was shelled and sunk in the North Sea 2.5 nmi north east of Filey, Yorkshire (54.95°N, -0.58333°W) by SMU UB-34 with the loss of ten of her crew.
 * SS Elsa (1904) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel 5 nmi east south east of Dartmouth, Devon, United Kingdom by SMU UB-31 . Her crew survived.
 * SS Fylgia (1889) (🇸🇪 Sweden): World War I: The cargo ship was torpedoed and sunk in the North Sea 10 nmi south east of Bell Rock (56.38333°N, -2.25°W) by SMU UC-49 with the loss of three of her crew.
 * SS Jönköping 2 (1888) (🇸🇪 Sweden): World War I: The cargo ship was sunk in the North Sea 3 nmi east nortn east of Bell Rock by SMU UC-49 . Her crew survived.
 * X6 and X110 (both ): World War I: The barges were sunk in the North Sea 2.5 nmi north east of Filey by SMU UB-34 with the loss of six crew from X6.

25 January

 * Aghios Dimitrios (🇬🇷 Greece): World War I: The sailing vessel was sunk in the Aegean Sea by SMU UC-22.
 * SS Carignano (1899) ( undefined): World War I: The cargo ship was sunk in the Tyrrhenian Sea off Stromboli (38.96667°N, 15.13333°W) by SMU UC-53.
 * SS Eastlands (1905) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 13 nmi north west of Île Vierge, Finistère, France by SMU UB-55 with the loss of a crew member.
 * SS Folmina (1915) (🇳🇱 Netherlands): World War I: The cargo ship was sunk in the North Sea 3 nmi south east of Sunderland, County Durham, United Kingdom (55°N, -1.33333°W) by SMU UB-34.
 * SS Giralda (1889) (🇪🇸 Spain): World War I: The cargo ship was sunk in the Atlantic Ocean 30 nmi off Cape Guardia (41.25°N, -9.33333°W) by SMU U-152 . Her crew were rescued by SS Cabo Meñor (🇪🇸 Spain).
 * Giuseppe O. ( undefined): World War I: The sailing vessel was sunk in the Tyrrhenian Sea east of Corsica by SMU U-65 (Germany).
 * SS Humber (1899) ( undefined): World War I: The coaster was torpedoed and sunk in the North Sea 2 nmi east of Sunderland by SMU UB-34 with the loss of seven crew.
 * SS Normandy (1910) ( undefined): World War I: The passenger ship was torpedoed and sunk in the English Channel 8 nmi east by north of the Cap de La Hague, Manche, France (49.76667°N, -1.73333°W) by SMU U-90 with the loss of fourteen lives.

26 January

 * SS Asimina (1894) (🇬🇷 Greece): World War I: The cargo ship was torpedoed and sunk in the Tyrrhenian Sea off Stromboli, Italy by SMU UC-53.
 * SS Athos (1913) (🇳🇴 Norway): World War I: The cargo ship was torpedoed and sunk in the North Sea 1 nmi east north east of Kettleness, Yorkshire, United Kingdom by SMU UB-34 with the loss of two of her crew.
 * Caterina ( undefined): World War I: The sailing vessel was sunk in the Gulf of Genoa by SMU UB-49.
 * SS Cork (1899) ( undefined): World War I: The passenger ship was torpedoed and sunk in the Irish Sea 9 nmi north east of Point Lynas, Anglesey (53.56667°N, -4.23333°W) by SMU U-103 with the loss of twelve of the 35 people on board.
 * Germano (🇵🇹 Portugal): World War I: The trawler was scuttled in the Atlantic Ocean off Cape Mondego (40.18333°N, -9.61667°W) by SMU U-152.
 * USS Guinevere (SP-512) : The patrol vessel ran aground in the Bay of Biscay and sank.
 * SS Hartley (1903) ( undefined): World War I: The collier was torpedoed and sunk in the North Sea 2 nmi north east of Skinningrove, Yorkshire (54.6°N, -0.81667°W) by SMU UB-34 . Her crew survived.
 *  Louie Bell ( undefined): World War I: The schooner was scuttled in the English Channel 15 nmi north of Cherbourg, Seine-Maritime, France (49.88333°N, -1.73333°W) by SMU UB-58 . Her crew survived.
 * May ( undefined): World War I: The ketch was scuttled in the English Channel 18 nmi south east of Berry Head, Devon by SMU UC-64 . Her crew survived.
 *  Ministro Iriondo (🇦🇷 Argentina): World War I: The auxiliary schooner was sunk in the Mediterranean Sea off Toulon, Var, France (43°N, 5.76667°W) by SMU UC-67 . Her crew survived.
 *  Rob Roy ( undefined): World War I: The schooner was shelled and sunk in the English Channel 20 nmi south west of St. Catherine's Point, Isle of Wight (50.28333°N, -1.5°W) by SMU UC-64 . Her crew survived.
 * Serra do Gerez (🇵🇹 Portugal): World War I: The trawler was scuttled in the Atlantic Ocean (40.06667°N, -9.6°W) by SMU U-152 . Her crew survived.
 * SMU U-84 : World War I: The Type U 81 submarine was depth charged and sunk in St. George's Channel (51.88333°N, -5.73333°W) by USS PC-62 with the loss of all 40 crew.
 * SMU UB-35 : World War I: The Type UB II submarine was depth charged and sunk in the North Sea (51.05°N, 1.76667°W) by HMS Leven (1898) with the loss of 26 of her 28 crew.
 * SS Union (1898) (🇫🇷 France): World War I: The coaster was sunk in the English Channel 7 nmi north of Sept Îles, Côtes-du-Nord (48.96667°N, -3.5°W) by SMU U-90.

27 January

 * RMS Andania (1913) ( undefined): World War I: The ocean liner was torpedoed and sunk in the Irish Sea off Rathlin Island, County Antrim (55.33333°N, -6.2°W) by SMU U-46 with the loss of seven crew.
 *  Attilio ( undefined): World War I: The brigantine was scuttled in the Mediterranean Sea off the coast of Liguria by SMU UC-67.
 * SS Carolus (1900) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel 2 nmi south of Dodman Point, Cornwall, United Kingdom (50.18333°N, -4.78333°W) by SMU UB-40 . Her crew survived.
 * Free to the Core (🇧🇪 Belgium): The fishing vessel was sunk in the English Channel (49.7°N, -0.53333°W) by SMU UB-54.
 *  Julia Frances (🇺🇸 United States): World War I: The three-masted schooner was scuttled in the Atlantic Ocean 100 nmi off Lisbon, Portugal (38.01667°N, -11.46667°W) by SMU U-152 . Her crew survived.
 *  Minnie (🇨🇦 Canada): The brig was abandoned in the Bay of Biscay 15 nmi off the Sisaragas Islands, Spain. Her crew were rescued.
 * Volonta di Dio ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sicily by SMU UB-48.

28 January

 * SS Djibouti (1901) (🇫🇷 France):World War I: The passenger ship was sunk in the Mediterranean Sea 8 nmi off Cape Bengut, Algeria (37.1°N, 3.91667°W) by SMU U-34 (Germany).
 * HMS E14 : World War I: The E-class submarine was damaged by the premature explosion of one of her torpedoes. She was forced to surface and was sunk by coastal artilleray off Kum Kale, Turkey with the loss of 21 of her 30 crew. The survivors were taken as prisoners of war.
 *  Elsa ( undefined): World War I: The barquentine was sunk in the Tyrrhenian Sea (41.38333°N, 12.61667°W) by SMU UB-49.
 * HMS Hazard (1894) : The collided with SS Western Australia ( undefined) in the English Channel and sank.
 *  Lysa ( undefined): World War I: The brigantine was scuttled in the Mediterranean Sea east of Sardinia (40.73333°N, 9.83333°W) by SMU UB-49.
 * HMML 55 : The motor launch was lost on this date.
 * SS Neptuno (1867) (🇵🇹 Portugal): World War I: The cargo ship was scuttled in the Atlantic Ocean 140 nmi off Lisbon (37.2°N, -11.61667°W) by SMU U-152 . Her crew survived.
 * SMU U-109 : World War I: The Type U 93 submarine struck a mine and sank in the English Channel (50.88333°N, 1.51667°W with the loss of all 43 crew.
 * Urania ( undefined): World War I: the sailing vessel was scuttled in the Mediterranean Sea south of Sardinia (40.25°N, 10.43333°W) by SMU UC-67.
 *  W. H. L. ( undefined): World War I: The ketch was scuttled in the English Channel 8 nmi south south east of Portland Bill, Dorset by SMU UB-58 . Her crew survived.

29 January

 *  Ada ( undefined): World War I: The brigantine was scuttled in the Tyrrhenian Sea (41.33333°N, 12.66667°W) by SMU UB-49.
 * Addax ( undefined): World War I: The fishing vessel was shelled and sunk in the English Channel 14 nmi south east by east of Berry Head, Devon (50.35°N, -3.3°W) by SMU UB-55 . Her crew survived.
 * SS Butetown (1907) ( undefined): World War I: The collier was torpedoed and sunk in the English Channel 1.5 nmi south of Dodman Point, Cornwall (50.2°N, -4.8°W) by SMU UB-40 . Her crew survived.
 * De Julia (🇧🇪 Belgium): World War I: The fishing vessel was sunk in Seine Bay (49.83333°N, -0.28333°W) by SMU UB-54.
 * De Twee Marcels (🇧🇪 Belgium): World War I: The fishing vessel was sunk in Seine Bay (49.83333°N, -0.28333°W) by SMU UB-54 with the loss of four of her crew.
 * HMT Drumtochty : World War I: The naval trawler struck a mine and sank in the English Channel with the loss of eleven of her thirteen crew.
 * SS Ethelinda (1911) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 15 nmi north north west of The Skerries, Isle of Anglesey (53.48333°N, -5.2°W) by SMU UC-30 with the loss of 26 of her crew.
 * Fanny ( undefined): World War I: The sailing vessel was sunk in the Gulf of Genoa by SMU UB-49.
 * General Leman ( undefined): World War I: The fishing ketch was shelled and sunk in the English Channel 14 nmi south east of Berry Head (50.35°N, -3.16667°W) by SMU UB-55 . Her crew survived.
 * SS Geo (1915) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 6 nmi north by west of Cape Peloro, Sicily, Italy (38.31667°N, 15.63333°W) by SMU UC-53 with the loss of sixteen of her crew.
 * Giuseppe B. ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sicily by SMU UC-67.
 * SS Glenfruin (1904) ( undefined): World War I: The cargo ship was sunk in the Irish Sea by SMU U-103 with the loss of all 32 crew.
 * ST Guiana ( undefined): The tug was run down and sunk in the North Sea off Whitby, Yorkshire by HMS Bat (1896) with the loss of four of her crew.
 * H. Debra Huysseme (🇧🇪 Belgium): World War I: The fishing vessel was sunk in the English Channel by SMU UB-54.
 * Ibex ( undefined): World War I: The fishing smack was shelled and sunk in the English Channel 14 nmi south east of Berry Head (50.35°N, -3.16667°W) by SMU UB-55 . Her crew survived.
 * Jean Mathilde (🇧🇪 Belgium): World War I: The fishing vessel was sunk in Seine Bay (49.83333°N, -0.28333°W) by SMU UB-54 . Her crew survived.
 * Le Jeune Arthur (🇧🇪 Belgium): World War I: The fishing vessel was sunk in the English Channel by SMU UB-54 . Her crew survived.
 * Maria S.S. del Paradiso ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sicily by SMU UC-67.
 * Marie (🇧🇪 Belgium): World War I: The fishing vessel was sunk in Seine Bay (49.83333°N, -0.28333°W) by SMU UB-54 . Her crew survived.
 * SS Montreal (1900) (🇨🇦 Canada): The cargo ship collided with White Star Line ocean liner RMS Cedric in Liverpool Bay and was severely damaged. She sank two days later. Her crew were rescued.
 * SS Naha Maru (1914) (🇯🇵 Japan): The passenger ship struck a rock and sank in the Bungo Strait off Shimonoseki with the loss of 36 lives.
 *  Perriton ( undefined): World War I: The schooner was shelled and sunk in the English Channel 20 nmi east of Berry Head by SMU UB-55 . Her crew survived.
 * Perseverance ( undefined): World War I: The fishing vessel was shelled and sunk in the English Channel 14 nmi south east by east of Berry Head (50.35°N, -3.16667°W) by SMU UB-55 . Her crew survived.
 * Taxiarchis ( undefined): World War I: The sailing vessel was shelled and sunk in the Mediterranean Sea 100 nmi south west of Cape Gala, Cyprus by SMU U-33 (Germany).
 * SS Tosho Maru (1894) (🇯🇵 Japan): World War I: The cargo ship was sunk in the La Galita Channel by SMU UC-54 . Her crew survived.

30 January

 * Ange Gardien (🇫🇷 France): World War I: The sailing vessel struck a mine and sank in the English Channel off Sept-Îles, Finistère.
 * SS Empress Ekaterina II (1913) (🇫🇷 France): World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea north of Bougie, Algeria by SMU UB-52 . Her crew survived.
 * SS Ferryhill (1909) ( undefined): World War I: The coaster was shelled and sunk in the English Channel 15 nmi west of Cap d'Antifer, Seine-Maritime, France (49.66667°N, -1.18333°W) by SMU UB-54 . Her crew survived.
 * Fratelli Barrera ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of Italy by SMU UC-53.
 * SS Harlaw (1888) ( undefined): World War I: The coaster was sunk in the Mediterranean Sea 30 nmi west north west of Corsica, France (43.03333°N, 8.5°W) by SMU UB-48 . Her crew survived.
 * SS Lindeskov (1883) (🇩🇰 Denmark): World War I: The cargo ship was sunk in the Atlantic Ocean 6 nmi west north west of Ouessant, Finistère (48.5°N, -5.28333°W) by SMU U-90 . Her crew survived.
 * SS Maizar (1917) ( undefined): World War I: The caro ship was torpedoed and sunk in the Mediterranean Sea 38 nmi north by west of Cap Ferrat, Algeria (36.53333°N, -1°W) by SMU U-34 (Germany) . Her crew survived.
 * Michele Padre ( undefined): World War I: The sailing vessel was sunk in the Mediterraneand Sea (39.25°N, 15.18333°W) by SMU UC-53.
 * SS Minnietonka (1902) ( undefined): World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea 40 nmi east north east of Malta by SMU U-64 (Germany) with the loss of four lives. Ten survivors were taken as prisoners of war.
 * HMS Wellholme : World War I: The Q-ship was shelled and sunk in the English Channel south west of Portland Bill, Dorset by SMU UB-55 with the loss of three of her crew.

31 January

 * FRENCH PATROL VESSEL Elephant : World War I: The auxiliary patrol vessel was torpedoed and sunk in the English Channel north of the Île-de-Bréhat, Finistère (48.88333°N, -3°W) by SMU UC-79 with the loss of fifteen of her crew.
 * HMS E50 : World War I: The E-class submarine struck a mine and sank in the North Sea off the South Dogger Lightship ( undefined).
 * HMS K4 : Operation E.C.1: The K-class submarine collided with HMS K6 and HMS K7 (both ) in the Firth of Forth and sank with the loss of all 59 crew.
 * HMS K17 : Operation E.C.1: The K-class submarine collided with HMS Fearless (1912) in the Firth of Forth and sank with the loss of all 59 crew.
 * Martin Gust (Flag of Russian SFSR.svg Russia): World War I: The sailing vessel was shelled and sunk in the Atlantic Ocean off Ouessant, Finistère, France by SMU U-90.
 * SS Towneley (1910) ( undefined): World War I: The collier was torpedoed and sunk in the Atlantic Ocean 18 nmi off Trevose Head, Cornwall (50.8°N, -4.8°W) by SMU U-46 with the loss of six crew.

Unknown date

 * Lavoro ( undefined: World War I: The sailing vessel was sunk in the Gulf of Genoa between 26 and 31 January by SMU UB-49.
 * Lucia Martini ( undefined): World War I: The sailing vessel was sunk in the Gulf of Genoa between 26 and 31 January by SMU UB-49.
 * Paola Meriga ( undefined): World War I: The sailing vessel was sunk in the Gulf of Genoa between 26 and 31 January by SMU UB-49.
 * SS Stamboul ( undefined): The cargo ship foundered in the Black Sea in early January.
 * SMU U-93 : World War I: The Type U 93 submarine was lost after 15 January with the loss of all 39 crew.
 * SMU U-95 : World War I: The Type U 93 submarine was lost in the English Channel off Hardelot, Pas-de-Calais, France after 15 January with the loss of all 36 crew.
 * SMU UB-66 : World War I: The Type UB III submarine was lost in the Mediterranean Sea on or after 17 January with the loss of all 30 crew.
 * W. C. McKay ( undefined): World War I: The sailing vessel was sunk in the Atlantic Ocean off the Azores, Portugal by a Kaiserliche Marine submarine with the loss of six of her crew.