List of shipwrecks in May 1917

The list of shipwrecks in May 1917 includes ships sunk, foundered, grounded, or otherwise lost during May 1917.

1 May[]

List of shipwrecks: 1 May 1917

Ship	Country	Description
Acacia	France	World War I: The fishing vessel was sunk in the Bay of Biscay 7 nautical miles (13 km) off the , Charente-Maritime by SM UC-72 ( Imperial German Navy). Her crew survived.[1]
Alide	Russia	World War I: The sailing vessel was sunk in the Atlantic Ocean off Land's End, Cornwall, United Kingdom by SM UC-75 ( Imperial German Navy).[2]
Antigone	France	World War I: The fishing vessel was sunk in the Bay of Biscay 8 nautical miles (15 km) off the Chassiron Lighthouse by SM UC-72 ( Imperial German Navy). Her crew survived.[3]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 13 nautical miles (24 km) north east of Creac'h Point, Ouessant, Finistère, France (48°41′N 5°08′W / 48.683°N 5.133°W / 48.683; -5.133) by SM UC-66 ( Imperial German Navy) with the loss of 23 of her crew.[4][5]
	Portugal	World War I: The cargo ship was sunk in the Bay of Biscay 4 nautical miles (7.4 km) off Suances, Cantabria, Spain by SM UC-69 ( Imperial German Navy).[6]
	United Kingdom	World War I: The tanker was torpedoed and sunk in the Mediterranean Sea 230 nautical miles (430 km) east south east of Malta by SM UB-43 ( Imperial German Navy). Her crew survived.[5][7]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 26 nautical miles (48 km) west south west of Boulogne, Pas-de-Calais, France (50°27′N 1°04′E / 50.450°N 1.067°E / 50.450; 1.067) by SM UB-18 ( Imperial German Navy) with the loss of three of her crew.[5][8]
Camille Amelin	France	World War I: The fishing vessel was sunk in the Bay of Biscay 6 nautical miles (11 km) off the , Charente-Maritime by SM UC-72 ( Imperial German Navy). Her crew survived.[9]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea 11 nautical miles (20 km) west of the Mull of Galloway by SM UC-65 ( Imperial German Navy). Her crew survived.[10]
	United Kingdom	World War I: The collier was torpedoed and sunk in the North Sea off Southwold, Suffolk by a Luftstreitkräfte aircraft.[5][11]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the North Sea (55°01′N 1°21′W / 55.017°N 1.350°W / 55.017; -1.350) by SM UC-29 ( Imperial German Navy). Her crew survived.[5][12]
	Finland	World War I: The full-rigged ship was sunk in the Atlantic Ocean 130 nautical miles (240 km) north west by west of the Stags of Broadhaven, County Mayo, United Kingdom (54°07′N 13°04′W / 54.117°N 13.067°W / 54.117; -13.067) by SM UC-73 ( Imperial German Navy).[13]
	United Kingdom	World War I: The cargo ship was scuttled in the Atlantic Ocean 15 nautical miles (28 km) south west of the Wolf Rock, Cornwall (49°52′N 5°59′W / 49.867°N 5.983°W / 49.867; -5.983) by SM UB-38 ( Imperial German Navy). Her crew survived.[14]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea 11 nautical miles (20 km) west of the Mull of Galloway, Wigtownshire by SM UC-65 ( Imperial German Navy). Her crew survived.[5][15]
	Norway	World War I: The barque was shelled and sunk in the Irish Sea 10 nautical miles (19 km) south west of Portpatrick, Wigtownshire by SM UC-65 ( Imperial German Navy). Her crew survived.[16]
	United Kingdom	World War I: The schooner was scuttled in the English Channel 40 nautical miles (74 km) south south east of Start Point, Devon (49°42′N 2°58′W / 49.700°N 2.967°W / 49.700; -2.967) by SM UC-66 ( Imperial German Navy). Her crew survived.[17]
	France	World War I: The barque was scuttled in the English Channel 8 nautical miles (15 km) north of the Les Hanois Lighthouse, Guernsey, Channel Islands by SM UC-66 ( Imperial German Navy). Her crew survived.[18]
Progress	United States	The barge sank in strong winds and rough seas off in the Delaware River.[19][20]
Raymond Ester	France	World War I: The fishing vessel was sunk in the Atlantic Ocean 10 nautical miles (19 km) north west of Pendeen, Cornwall (50°15′N 5°53′W / 50.250°N 5.883°W / 50.250; -5.883) by SM UC-48 ( Imperial German Navy).[21]
	United States	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) west north west of Ireland (55°12′N 12°30′W / 55.200°N 12.500°W / 55.200; -12.500) by SM U-69 ( Imperial German Navy) with the loss of 2–13 of her crew, depending on sources.[22][23][24]
	United Kingdom	World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) north west by north of the Fastnet Rock (51°33′N 13°38′W / 51.550°N 13.633°W / 51.550; -13.633) by SM U-81 ( Imperial German Navy) with the loss of four of her crew.[25]
SM U-81	Imperial German Navy	World War I: The Type U 81 submarine was torpedoed and sunk in the Atlantic Ocean west of Ireland (51°33′N 13°38′W / 51.550°N 13.633°W / 51.550; -13.633) by HMS E54 ( Royal Navy) with the loss of 24 of her crew.
	United Kingdom	World War I: The schooner was shelled and sunk in the Irish Sea 10 nautical miles (19 km) south west of Portpatrick by SM UC-65 ( Imperial German Navy). Her crew survived.[26]

2 May[]

List of shipwrecks: 2 May 1917

Ship	Country	Description
	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea 100 nautical miles (190 km) north of Benghazi, Libya by SM UC-74 ( Imperial German Navy).[27]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea 2 nautical miles (3.7 km) Ballyhalbert, County Down by SM UC-65 ( Imperial German Navy). Her crew survived.[5][28]
	United Kingdom	World War I: The barque was shelled and sunk in the Atlantic Ocean 140 nautical miles (260 km) west by north of the Fastnet Rock (50°50′N 13°00′W / 50.833°N 13.000°W / 50.833; -13.000) by SM U-58 ( Imperial German Navy). Her crew survived.[29]
	United Kingdom	World War I: The cargo ship was torpedoed and damaged in the Mediterranean Sea off Djidjelli, Algeria by SM UC-37 ( Imperial German Navy). She was beached but was later refloated.[30]
	France	World War I: The three-masted schooner was torpedoed and sunk in the Bay of Biscay 12 nautical miles (22 km) north west of the Île d'Yeu, Vendée (46°55′N 2°23′W / 46.917°N 2.383°W / 46.917; -2.383) by SM UC-72 ( Imperial German Navy). Her crew survived.[31]
	Norway	World War I: The cargo ship struck a mine and sank in the English Channel off Le Havre, Seine-Inférieure, France. Her crew survived.[32]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea off Ballyhalbert by SM UC-65 ( Imperial German Navy). Some of her crew survived.[5][33]
HMS Derwent	Royal Navy	World War I: The River-class destroyer struck a mine and sank in the English Channel off Le Havre (49°31′N 0°02′W / 49.517°N 0.033°W / 49.517; -0.033) with the loss of 58 of her 70 crew.
Dione	Norway	World War I: The sailing vessel was sunk in the Atlantic Ocean south west of Ireland (50°39′N 11°45′W / 50.650°N 11.750°W / 50.650; -11.750) by SM U-58 ( Imperial German Navy). Her crew survived.[34]
	United Kingdom	World War I: The schooner was scuttled in the Irish Sea 6 nautical miles (11 km) south east by south of the ( United Kingdom) by SM UC-65 ( Imperial German Navy). Her crew survived.[35]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the North Sea off Aldeburgh, Suffolk by an Imperial German Air Corps aircraft. Her crew survived.[36]
	United Kingdom	World War I: The cargo ship was sunk in the English Channel 17 nautical miles (31 km) east of the , Manche, France (49°48′N 0°51′W / 49.800°N 0.850°W / 49.800; -0.850) by SM UB-18 ( Imperial German Navy) with the loss of a crew member.[37]
	French Navy	World War I: The naval trawler was torpedoed and sunk in the Bay of Biscay 12 nautical miles (22 km) north west of the Île d'Yeu (46°46′N 2°41′W / 46.767°N 2.683°W / 46.767; -2.683) by SM UC-72 ( Imperial German Navy) with the loss of sixteen of her crew.[38]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea 4 nautical miles (7.4 km) south east of the ( United Kingdom) by SM UC-65 ( Imperial German Navy). Her crew survived.[39]
	Norway	World War I: The barque was sunk in the Atlantic Ocean 70 nautical miles (130 km) west of the Shetland Islands, United Kingdom (59°50′N 3°10′W / 59.833°N 3.167°W / 59.833; -3.167) by SM U-44 ( Imperial German Navy). Her crew survived.[40]
	Netherlands	World War I: The koff was scuttled in the North Sea off the Noord Hinder Lightship ( Netherlands) by SM UC-62 ( Imperial German Navy). Her crew survived.[41]
	Norway	World War I: The cargo ship was sunk in the North Sea 9 nautical miles (17 km) south of Whitby, Yorkshire (54°23′N 0°22′W / 54.383°N 0.367°W / 54.383; -0.367) by SM UB-21 ( Imperial German Navy) with the loss of two of her crew.[42]
	France	World War I: The schooner was scuttled in the Bay of Biscay 12 nautical miles (22 km) north west of the Île d'Yeu (46°46′N 2°41′W / 46.767°N 2.683°W / 46.767; -2.683) by SM UC-72 ( Imperial German Navy). Her crew survived.[43]
	United Kingdom	World War I: The coaster was scuttled in the Irish Sea 2 nautical miles (3.7 km) north north east of the ( United Kingdom) by SM UC-65 ( Imperial German Navy).[5][44]
	Japan	World War I: The cargo ship was sunk in the Irish Sea 11 nautical miles (20 km) west of the Mull of Galloway (54°28′N 5°20′W / 54.467°N 5.333°W / 54.467; -5.333) by SM UC-65 ( Imperial German Navy). Her crew survived.[45]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 16 nautical miles (30 km) north east of Cape Barfleur, Manche (49°50′N 0°50′W / 49.833°N 0.833°W / 49.833; -0.833) by SM UB-18 ( Imperial German Navy). Her crew survived.[5][46]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) west north west of Malin Head, County Donegal (53°22′N 15°52′W / 53.367°N 15.867°W / 53.367; -15.867) by SM U-69 ( Imperial German Navy). Her crew survived.[5][47]
United	United Kingdom	World War I: The fishing smack was scuttled in the Atlantic Ocean 5 nautical miles (9.3 km) off the Godrevy Lighthouse, Cornwall (50°13′N 5°53′W / 50.217°N 5.883°W / 50.217; -5.883) by SM UC-48 ( Imperial German Navy). Her crew survived.[48]
	Norway	World War I: The barque was shelled and sunk in the Atlantic Ocean south west of Ireland (50°24′N 14°59′W / 50.400°N 14.983°W / 50.400; -14.983) by SM U-58 ( Imperial German Navy). Her crew survived.[49]
	France	World War I: The schooner was scuttled in the Bay of Biscay (46°46′N 2°41′W / 46.767°N 2.683°W / 46.767; -2.683) by SM UC-72 ( Imperial German Navy). Her crew survived.[50]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) west of Trevose Head, Cornwall (50°30′N 5°10′W / 50.500°N 5.167°W / 50.500; -5.167) by SM UC-48 ( Imperial German Navy) with the loss of fourteen of her crew.[51]
Westland	Netherlands	World War I: The fishing vessel was scuttled in the North Sea off the ( Netherlands) (53°47′N 4°21′E / 53.783°N 4.350°E / 53.783; 4.350) by SM UC-71 ( Imperial German Navy). Her crew survived.[52]
Yvonne	France	World War I: The sailing vessel was sunk in the Bay of Biscay 12 nautical miles (22 km) north west of the Île d'Yeu (46°46′N 2°41′W / 46.767°N 2.683°W / 46.767; -2.683) by SM UC-72 ( Imperial German Navy). Her crew survived.[53]

3 May[]

List of shipwrecks: 3 May 1917

Ship	Country	Description
	Italy	World War I: The cargo ship was sunk in the Ionian Sea 24 nautical miles (44 km) south south east of Sapientza, Greece (36°39′N 21°15′E / 36.650°N 21.250°E / 36.650; 21.250) by SM U-14 ( Austro-Hungarian Navy). Her crew survived.[54]
Carberry King	United Kingdom	World War I: The drifter was scuttled in the English Channel 14 nautical miles (26 km) south of The Lizard, Cornwall (49°44′N 5°07′W / 49.733°N 5.117°W / 49.733; -5.117) by SM UC-75 ( Imperial German Navy). Her crew survived.[55][56]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 5 nautical miles (9.3 km) south west of Newhaven, Sussex (50°43′N 0°01′W / 50.717°N 0.017°W / 50.717; -0.017) by SM UB-40 ( Imperial German Navy). Her crew survived.[5][57]
Eleanor	United Kingdom	World War I: The fishing vessel was scuttled in the English Channel (49°45′N 5°07′W / 49.750°N 5.117°W / 49.750; -5.117) by SM UC-75 ( Imperial German Navy).[58]
Fastnet	United Kingdom	World War I: The fishing vessel was scuttled in the English Channel (49°45′N 5°07′W / 49.750°N 5.117°W / 49.750; -5.117) by SM UC-75 ( Imperial German Navy).[56][59]
Fils du Progres	France	World War I: The trawler was sunk in the Atlantic Ocean 3 nautical miles (5.6 km) south west of the Île de Sein, Finistère by SM UC-61 ( Imperial German Navy). Her crew survived.[60]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 115 nautical miles (213 km) north west by west of the Fastnet Rock (51°43′N 12°21′W / 51.717°N 12.350°W / 51.717; -12.350) by SM U-62 ( Imperial German Navy). Her crew survived.[5][61]
	Italy	World War I: The cargo ship was sunk in the Bay of Biscay 10 nautical miles (19 km) south west of Belle Île, Morbihan, France by SM UC-61 ( Imperial German Navy).[62]
	United Kingdom	World War I: The coaster struck a mine and sank in the North Sea 1 nautical mile (1.9 km) north east of , Aberdeenshire (57°10′N 2°02′W / 57.167°N 2.033°W / 57.167; -2.033). Her crew survived.[63]
	Denmark	World War I: The schooner was scuttled in the North Sea (56°28′N 3°43′E / 56.467°N 3.717°E / 56.467; 3.717) by SM UC-49 ( Imperial German Navy). Her crew survived.[64]
Hibernia	United Kingdom	World War I: The fishing vessel was sunk in the Atlantic Ocean 14 nautical miles (26 km) south east of Baltimore, County Cork by SM UC-75 ( Imperial German Navy).[65]
	Russia	World War I: The full-rigged ship was scuttled in the Atlantic Ocean south west of Ireland (49°20′N 14°00′W / 49.333°N 14.000°W / 49.333; -14.000) by SM U-21 ( Imperial German Navy).[66]
Lucky Lass	United Kingdom	The fishing vessel was scuttled in the English Channel (49°34′N 5°07′W / 49.567°N 5.117°W / 49.567; -5.117) by SM UC-75 ( Imperial German Navy).[67]
	Greece	World War I: The cargo ship was sunk in the Bay of Biscay by SM UC-69 ( Imperial German Navy). Her crew survived.[68]
	France	World War I: The barque was shelled and sunk in the Atlantic Ocean (50°15′N 15°36′W / 50.250°N 15.600°W / 50.250; -15.600) by SM UC-73 ( Imperial German Navy). Her crew survived.[69]
	Italy	World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 50°10′N 17°15′W / 50.167°N 17.250°W / 50.167; -17.250) by SM UC-73 ( Imperial German Navy). Her crew survived.[70]
North Star	United Kingdom	World War I: The fishing vessel was scuttled in the English Channel (49°45′N 5°05′W / 49.750°N 5.083°W / 49.750; -5.083) by SM UC-75 ( Imperial German Navy).[71]
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean off Cape Ortegal, Spain (43°43′N 7°06′W / 43.717°N 7.100°W / 43.717; -7.100) by SM UC-69 ( Imperial German Navy). Her crew survived.[72]
Sir Edward Birkbeck	United Kingdom	World War I: The fishing vessel was scuttled in the English Channel by SM UC-75 ( Imperial German Navy). Her crew survived.[73]
	Russia	World War I: The cargo ship was torpedoed and sunk in the Barents Sea off (70°08′N 33°07′E / 70.133°N 33.117°E / 70.133; 33.117) by SM U-45 ( Imperial German Navy). Her crew survived.[74]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the English Channel 2.5 nautical miles (4.6 km) off Cherbourg, Seine-Inférieure, France by SM UC-26 ( Imperial German Navy). Her crew survived.[75]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Gulf of Genoa 1.5 nautical miles (2.8 km) off Camogli, Liguria, Italy (44°14′N 9°07′E / 44.233°N 9.117°E / 44.233; 9.117) by SM U-63 ( Imperial German Navy). Her crew survived.[5][76]

4 May[]

List of shipwrecks: 4 May 1917

Ship	Country	Description
	Greece	World War I: The cargo ship was sunk in the English Channel 16 nautical miles (30 km) south east of Barfleur, Manche, France (49°43′N 0°54′W / 49.717°N 0.900°W / 49.717; -0.900) by SM UB-38 ( Imperial German Navy). Her crew survived.[77]
	Greece	World War I: The cargo ship was captured and scuttled in the English Channel 16 nautical miles (30 km) south east of Barfleur 49°43′N 0°54′W / 49.717°N 0.900°W / 49.717; -0.900 by SM UB-38 ( Imperial German Navy).[78]
	French Navy	World War I: The naval whaler struck a mine and sank in the Gulf of Patras off Cape Pappas, Greece with the loss of a crew member.[79]
Doctor Brooks	United States	The barge went ashore on Santa Rosa Island, Florida in a storm. Later refloated.[19]
	Italy	World War I: the barque was scuttled in the Mediterranean Sea west of Sardinia (40°18′N 8°08′E / 40.300°N 8.133°E / 40.300; 8.133) by SM U-34 ( Imperial German Navy).[80]
	United Kingdom	World War I: The collier struck a mine and sank in the North Sea 0.75 nautical miles (1.39 km) east south east of (56°37′N 2°27′W / 56.617°N 2.450°W / 56.617; -2.450). Her crew survived.[11][81]
Ilva	Italy	World War I: The cargo ship was captured and scuttled in the Bay of Biscay 5 nautical miles (9.3 km) off Coelleira Island, Galicia, Spain by SM UC-69 ( Imperial German Navy). Her crew survived.[82]
	Greece	World War I: The cargo ship was sunk in the Bay of Biscay 23 nautical miles (43 km) east of the Punta de Estaca de Bares by SM UC-69 ( Imperial German Navy). Her crew survived.[83]
	Denmark	World War I: The three-masted schooner was shelled and damaged in the Atlantic Ocean 30 nautical miles (56 km) west of Ireland by SM U-62 ( Imperial German Navy). Her crew survived but she was declared a constructive total loss.[84][85]
	United Kingdom	World War I: The brigantine was scuttled in the English Channel 20 nautical miles (37 km) north of Caen, Calvados, France (49°39′N 0°38′W / 49.650°N 0.633°W / 49.650; -0.633) by SM UB-38 ( Imperial German Navy). Her crew survived.[86]
Locust	United States	The lighter sank near , East Boston, Massachusetts.[87]
	Royal Navy	The naval trawler was lost on this date.[11]
	Denmark	World War I: The coaster was torpedoed and sunk in the North Sea off Aberdeen, United Kingdom (58°30′N 1°04′W / 58.500°N 1.067°W / 58.500; -1.067) by SM UC-51 ( Imperial German Navy) with the loss of two of her crew.[88]
Marie	France	World War I: The sailing vessel was sunk in the Atlantic Ocean south of Ireland by SM UC-75 ( Imperial German Navy).[89]
Mamelena IX	Spain	World War I: The trawler was scuttled in the Bay of Biscay south west of the , Landes, France by SM UC-72 ( Imperial German Navy)[90]
Mamelena XII	Spain	World War I: The trawler was scuttled in the Bay of Biscay south west of the Contis Lighthouse by SM UC-72 ( Imperial German Navy).[91]
	French Navy	World War I: The naval trawler was shelled and sunk in the Bay of Biscay south west of the Contis Lighthouse by SM UC-72 ( Imperial German Navy). Her crew survived.[92]
	Netherlands	World War I: The coaster was scuttled in the North Sea 10 nautical miles (19 km) north of the ( Netherlands) by SM UC-62 ( Imperial German Navy).[93]
	United Kingdom	World War I: The schooner was scuttled in the Irish Sea 25 nautical miles (46 km) north by west of the South Bishop Lighthouse by SM UC-65 ( Imperial German Navy). Her crew survived.[94]
	United Kingdom	World War I: The cargo ship was torpedeoed and sunk in the Atlantic Ocean 2 nautical miles (3.7 km) south east by south of the Tuskar Rock, Ireland (52°10′N 6°08′W / 52.167°N 6.133°W / 52.167; -6.133) by SM UC-65 ( Imperial German Navy) with the loss of twenty of her crew.[5][95]
Sophie	Denmark	World War I: The sailing vessel was sunk in the North Sea by SM UC-42 ( Imperial German Navy).[96]
Strumble	United Kingdom	World War I: The fishing smack was scuttled in the Irish Sea 10 nautical miles (19 km) north north east of Strumble Head, Pembrokeshire by SM UC-65 ( Imperial German Navy). Her crew survived.[56][97]
Transylvania	United Kingdom	World War I: The troopship was torpedoed and sunk in the Gulf of Genoa 2.5 nautical miles (4.6 km) off , Liguria, Italy (44°15′N 8°30′E / 44.250°N 8.500°E / 44.250; 8.500) by SM U-63 ( Imperial German Navy) with the loss of 402 lives.
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 2 nautical miles (3.7 km) off , Spain (43°46′N 7°34′W / 43.767°N 7.567°W / 43.767; -7.567) by SM UC-69 ( Imperial German Navy). Her crew survived.[98]
	Norway	World War I: The coaster was torpedoed and sunk in the North Sea 68 nautical miles (126 km) east by north of the Isle of May, Fife, United Kingdom (56°02′N 1°00′W / 56.033°N 1.000°W / 56.033; -1.000) by SM UC-77 ( Imperial German Navy) with the loss of three of her crew.[99]
Verdun	France	World War I: The fishing vessel was shelled and sunk in the Bay of Biscay south west of the Contis Lighthouse by SM UC-72 ( Imperial German Navy). Her crew survived.[100]
Victorious	United Kingdom	World War I: The fishing vessel was scuttled in the Irish Sea 10 nautical miles (19 km) north north east of Strumble Head by SM UC-65 ( Imperial German Navy). Her crew survived.[101]

5 May[]

List of shipwrecks: 5 May 1917

Ship	Country	Description
	United Kingdom	World War I: The schooner struck a mine and sank in the North Sea 3 nautical miles (5.6 km) off the mouth of the River Tyne (54°59′N 1°19′W / 54.983°N 1.317°W / 54.983; -1.317) with the loss of five of her crew.[102]
	Norway	World War I: The full-rigged ship was shelled and sunk in the Atlantic Ocean 140 nautical miles (260 km) west north west of Tory Island, County Donegal, United Kingdom (55°40′N 12°10′W / 55.667°N 12.167°W / 55.667; -12.167) by SM U-58 ( Imperial German Navy). Her crew survived.[103]
Dina di Lozenzo	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea north of Bizerte, Algeria by SM UC-37 ( Imperial German Navy).[104]
Edith Cavell	United Kingdom	The trawler was scuttled in the North Sea off Robin Hood's Bay, Yorkshire by SM UB-21 ( Imperial German Navy).[56][105]
	United Kingdom	World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 8 nautical miles (15 km) south east of (51°56′N 7°24′W / 51.933°N 7.400°W / 51.933; -7.400) by SM UC-48 ( Imperial German Navy) with the loss of 45 lives.[5][106]
	United Kingdom	World War I: The coaster was shelled and sunk in the Atlantic Ocean 11 nautical miles (20 km) south east of Mine Head, County Cork by SM UC-48 ( Imperial German Navy). Her crew survived.[5][107]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the Mediterranean Sea 30 nautical miles (56 km) off Cape Bon, Algeria with the loss of 36 of her crew.[108]
	Royal Navy	World War I: The Acacia-class sloop was sunk in the English Channel south of by SM UC-75 ( Imperial German Navy) with the loss of 22 of her 77 crew.[109]
	United Kingdom	World War I: The coaster struck a mine and sank in the Irish Sea 4 nautical miles (7.4 km) south east of Ballycotton, County Cork with the loss of seven of her crew.[110]
	Imperial Russian Navy	World War I: The Morzh-class submarine was sunk by mine off the coast of Turkey. The wreck discovery in 2002 confirmed the cause of loss.[111]
	Norway	World War I: The cargo ship was sunk in the Bay of Biscay 25 nautical miles (46 km) west south west of the La Coubre Lighthouse, Charente-Maritime, France by SM UC-72 ( Imperial German Navy). Her crew survived.[112]
	Denmark	World War I: The cargo ship was damaged in the North Sea 1.5 nautical miles (2.8 km) east north east of St Abb's Head, Berwickshire, United Kingdom (55°56′N 2°12′W / 55.933°N 2.200°W / 55.933; -2.200) by SM UC-77 ( Imperial German Navy) and was abandoned with the loss of two of her crew. Odense came ashore north of St Abb's Head and was declared a total loss. She sank on 2 August.[113]
	Norway	World War I: The cargo ship was sunk in the North Sea 26 nautical miles (48 km) south south east of Auskerry, Orkney Islands, United Kingdom (58°38′N 2°00′W / 58.633°N 2.000°W / 58.633; -2.000) by SM UC-51 ( Imperial German Navy). Her crew survived.[114]
Simon	Netherlands	World War I: The fishing vessel was shelled and sunk in the North Sea off the ( Netherlands) (53°31′N 3°40′E / 53.517°N 3.667°E / 53.517; 3.667) by SM UC-71 ( Imperial German Navy) with the loss of all eleven crew.[115]
	Norway	World War I: The barque was sunk in the Atlantic Ocean 200 nautical miles (370 km) west of Tory Island (54°08′N 13°36′W / 54.133°N 13.600°W / 54.133; -13.600) by SM U-49 ( Imperial German Navy). Her crew survived.[116]

6 May[]

List of shipwrecks: 6 May 1917

Ship	Country	Description
	United Kingdom	World War I: The Elder Dempster 2,644 GRT cargo ship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) west of the Fastnet Rock (50°40′N 11°05′W / 50.667°N 11.083°W / 50.667; -11.083) by SM U-21 ( Imperial German Navy) while en route from Sierra Leone to Liverpool. Her crew survived.[5][117]
	United States	The schooner barge sank 25 miles (40 km) south west of the , a total loss. The crew left in her lifeboat and were rescued by a steamer.[19][118]
	Imperial German Navy	The Vorpostenboot was lost on this date.[119]
	Italy	World War I: The cargo ship was sunk in the Bay of Biscay off the La Coubre Lighthouse, Charente-Maritime, France by SM UC-72 ( Imperial German Navy). Her crew survived.[120]
	Norway	World War I: The cargo ship was scuttled in the Bay of Biscay 1.5 nautical miles (2.8 km) off , Spain (43°39′N 5°48′W / 43.650°N 5.800°W / 43.650; -5.800) by SM UC-69 ( Imperial German Navy). Her crew survived.[121]
	Sweden	World War I: The cargo ship was shelled and sunk in the North Sea[122] 76 nautical miles (141 km) north east by north of the mouth of the River Tyne by SM UB-21 ( Imperial German Navy) with the loss of five crew.[123]
Hebble	United Kingdom	World War I: The coaster struck a mine and sank in the North Sea 1.5 nautical miles (2.8 km) east of Roker, County Durham (54°55′N 1°18′E / 54.917°N 1.300°E / 54.917; 1.300) with the loss of five of her crew.[124]
	Norway	World War I: cargo ship was torpedoed and sunk in the North Sea 30 nautical miles (56 km) east of Aberdeen, United Kingdom by SM UC-77 ( Imperial German Navy) with the loss of a crew member.[125]
Poseidon I	Netherlands	World War I: The fishing vessel was shelled and sunk in the North Sea 9 nautical miles (17 km) north of the ( United Kingdom) by SM UC-30 ( Imperial German Navy). Her crew survived.[126]
	France	World War I: The barque was shelled and sunk in the Atlantic Ocean 12 nautical miles (22 km) west of Trevose Head, Cornwall, United Kingdom (50°31′N 5°21′W / 50.517°N 5.350°W / 50.517; -5.350) by SM UC-75 ( Imperial German Navy). Her crew survived.[127]
	Norway	World War I: The cargo ship was sunk in the Bay of Biscay 1.5 nautical miles (2.8 km) off Vaca de Luanco (43°39′N 5°47′W / 43.650°N 5.783°W / 43.650; -5.783) by SM UC-69 ( Imperial German Navy). Her crew survived.[128]

7 May[]

List of shipwrecks: 7 May 1917

Ship	Country	Description
	United Kingdom	World War I: The cargo ship was torpedoed and damaged in the Gulf of Genoa (44°08′N 8°14′E / 44.133°N 8.233°E / 44.133; 8.233) by SM U-63 ( Imperial German Navy) with the loss of a crew member. She was beached but was torpedoed again on 16 May by SM U-32 ( Imperial German Navy).[129]
	Denmark	World War I: The barquentine was sunk in the Atlantic Ocean 20 to 25 nautical miles (37 to 46 km) west of St. Kilda, Inverness-shire, United Kingdom (57°30′N 9°00′W / 57.500°N 9.000°W / 57.500; -9.000) by SM U-80 ( Imperial German Navy). Her crew survived.[130]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 10 nautical miles (19 km) east of the Wolf Rock, Cornwall (49°49′N 5°33′W / 49.817°N 5.550°W / 49.817; -5.550) by SM UC-48 ( Imperial German Navy). Her crew survived.[131]
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 5 nautical miles (9.3 km) west north west of the , Madeira, Portugal by SM UC-69 ( Imperial German Navy). Her crew survived.[132]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the English Channel 4 nautical miles (7.4 km) off the Nab Lightship ( United Kingdom) with the loss of five of her crew.[133]
Martha Maria	Netherlands	World War I: The trawler was sunk in the North Sea (52°50′N 4°08′E / 52.833°N 4.133°E / 52.833; 4.133) by SM UB-20 ( Imperial German Navy). Her crew survived.[134]
	United Kingdom	World War I: The schooner was scuttled in the Irish Sea 8 nautical miles (15 km) south west of Bardsey Island, Pembrokeshire by SM UC-65 ( Imperial German Navy). Her crew survived.[135]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) west south west of the Bishop Rock, Isles of Scilly (49°02′N 8°04′W / 49.033°N 8.067°W / 49.033; -8.067) by SM U-62 ( Imperial German Navy). Her crew survived.[5][136]
Prins Hendrik de Nederlande	Netherlands	World War I: The trawler was sunk in the North Sea (52°50′N 4°10′E / 52.833°N 4.167°E / 52.833; 4.167) by SM UB-20 ( Imperial German Navy). Her crew survived.[137]
	United Kingdom	World War I: The collier was torpedoed and sunk in the Mediterranean Sea 45 nautical miles (83 km) south south east of Cape Matapan, Greece (35°42′N 22°57′E / 35.700°N 22.950°E / 35.700; 22.950) by SM UB-43 ( Imperial German Navy) with the loss of three of her crew.[5][138][139]
	Denmark	World War I: The schooner was sunk in the Atlantic Ocean 30 nautical miles (56 km) east south oeast of St. Kilda (57°40′N 9°05′W / 57.667°N 9.083°W / 57.667; -9.083) by SM U-80 ( Imperial German Navy). Her crew survived.[140]
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 3 nautical miles (5.6 km) west north west of , Madeira (43°27′N 2°50′W / 43.450°N 2.833°W / 43.450; -2.833) by SM UC-69 ( Imperial German Navy). Her crew survived.[141]
	Norway	World War I: The cargo ship was sunk in the North Sea 95 nautical miles (176 km) south of Sumburgh Head, Shetland Islands, United Kingdom by SM UC-49 ( Imperial German Navy) with the loss of a crew member.[142]
SM UB-39	Imperial German Navy	World War I: The Type UB II submarine struck a mine and sank in the North Sea (51°20′N 2°09′E / 51.333°N 2.150°E / 51.333; 2.150) with the loss of all 24 crew.[143]
	Royal Navy	World War I: The naval yacht struck a mine and sank in the North Sea 1 nautical mile (1.9 km) north east of Mull Head, Mainland, Orkney Islands with the loss of sixteen of her crew.[144]

8 May[]

List of shipwrecks: 8 May 1917

Ship	Country	Description
Iris	United Kingdom	World War I: The ketch was sunk in the English Channel off Cherbourg, Seine-Inférieure, France, probably by SM UC-26 ( Imperial German Navy), with the loss of four of her crew.[145]
or	United States	The schooner barge sank 12 miles (19 km) east south east of Hog Island or Chincoteague, Virginia, a total loss.[19][146]
	United Kingdom	World War I: The barque was shelled and sunk in the Atlantic Ocean 200 nautical miles (370 km) west of the Fastnet Rock (50°55′N 14°44′W / 50.917°N 14.733°W / 50.917; -14.733) by SM U-21 ( Imperial German Navy). Her crew survived.[5][147]
	France	World War I: The cargo ship was sunk in the Bay of Biscay 44 nautical miles (81 km) south south west of Penmarc'h, Finistère (47°18′N 4°55′W / 47.300°N 4.917°W / 47.300; -4.917 by SM UC-61 ( Imperial German Navy) with the loss of a crew member.[148]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 45 nautical miles (83 km) west of the Bishop Rock, Isles of Scilly by SM U-49 ( Imperial German Navy) with the loss of two crew. Three survivors were taken as prisoners of war.[5][149]
SM UC-26	Imperial German Navy	World War I: The Type UC II submarine was rammed and sunk in the English Channel off Calais, Pas-de-Calais, France (51°03′N 1°40′E / 51.050°N 1.667°E / 51.050; 1.667) by HMS Milne ( Royal Navy) with the loss of all 26 crew.

9 May[]

List of shipwrecks: 9 May 1917

Ship	Country	Description
Dio ti Guardi	Italy	World War I: The fishing vessel was sunk in the Mediterranean Sea off , Sicily by SM UC-35 ( Imperial German Navy).[150]
	Denmark	World War I: The cargo ship was sunk in the Atlantic Ocean 30 nautical miles (56 km) west of , County Donegal, United Kingdom (54°38′N 9°30′W / 54.633°N 9.500°W / 54.633; -9.500) by SM U-80 ( Imperial German Navy). Her crew survived.[151]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 62 nautical miles (115 km) south west of the Île du Planier, Bouches-du-Rhône, France (42°32′N 4°39′E / 42.533°N 4.650°E / 42.533; 4.650) by SM U-34 ( Imperial German Navy) with the loss of three crew. Two crew were taken as prisoners of war.[152]
Kitty	United Kingdom	World War I: The fishing vessel was scuttled in the North Sea 30 nautical miles (56 km) east south east of St Abb's Head, Berwickshire (56°11′N 1°45′W / 56.183°N 1.750°W / 56.183; -1.750) by SM UC-42 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war.[56][153]
L'Oriente	Italy	World War I: The fishing vessel was scuttled in the Mediterranean Sea off Cape Rosello by SM UC-35 ( Imperial German Navy).[154]
	Netherlands	World War I: The schooner was shelled and sunk in the English Channel off Beachy Head, Sussex, United Kingdom by SM UC-17 ( Imperial German Navy). Her crew took to the lifeboats but were not rescued.[155]
	Imperial German Navy	World War I: The Augustenburg-class Vorpostenboot was sunk by mines north of Borkum.[156]
	Imperial Russian Navy	World War I: The No. 1-class submarine was lost in the Barents Sea.[157]
Peppino Aiello	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off Cape Rosello by SM UC-35 ( Imperial German Navy).[158]
San Pietro	Italy	World War I: The fishing vessel was sunk in the Mediterranean Sea off Cape Rosello by SM UC-35 ( Imperial German Navy).[159]
Windward Ho!	United Kingdom	World War I: The trawler struck a mine and sank in the North Sea 3 nautical miles (5.6 km) south of Peterhead, Aberdeenshire (57°28′N 1°42′W / 57.467°N 1.700°W / 57.467; -1.700) with the loss of eight of her crew.[160]

10 May[]

List of shipwrecks: 10 May 1917

Ship	Country	Description
	France	World War I: The full-rigged ship was shelled and sunk in the Atlantic Ocean south west of Ireland (50°06′N 11°30′W / 50.100°N 11.500°W / 50.100; -11.500) by SM U-62 ( Imperial German Navy). All 22 crew survived.[161]
	United Kingdom	World War I: The collier was scuttled in the English Channel 9 nautical miles (17 km) south west of Portland Bill, Dorset (50°25′N 2°32′W / 50.417°N 2.533°W / 50.417; -2.533) by SM UC-61 ( Imperial German Navy) with the loss of two of her crew.[5][11][162]
	Spain	World War I: The three-masted schooner was scuttled in the Mediterranean Sea 12 nautical miles (22 km) south of Barcelona by SM U-34 ( Imperial German Navy).[163]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the North Sea 3.25 nautical miles (6.02 km) north east of North Foreland, Kent (51°26′N 1°28′E / 51.433°N 1.467°E / 51.433; 1.467) with the loss of a crew member.[164]
Gazelle	Norway	World War I: The sailing ship was scuttled in the Atlantic Ocean 80 nautical miles (150 km) south west of the Fastnet Rock (49°45′N 10°50′W / 49.750°N 10.833°W / 49.750; -10.833) by SM U-62 ( Imperial German Navy). Her crew survived.[165]
Gruno	Netherlands	World War I: The auxiliary sailing vessel was sunk in the North Sea 8 nautical miles (15 km) south south west of the Noord Hinder Lightship ( Netherlands) by SM UC-63 ( Imperial German Navy).[166]
	United States	The tow steamer, towing the barge Kingston (flag unknown), capsized and sank in heavy seas near the Southwest Ledge Light, off the mouth of the harbor at New Haven, Connecticut in six fathoms (36 ft; 11 m) of water. Two of her crew were rescued by the lighthouse keeper. Her captain and chief engineer died. The vessel was scheduled to be raised.[167][168][169]
Leone Decimo Terzo	Italy	The sailing vessel was sunk in the Mediterranean Sea off Marettimo by SM UC-35 ( Imperial German Navy).[170]
	Royal Navy	World War I: The naval trawler struck a mine and sank in the North Sea off Whitby, Yorkshire (54°31′N 0°37′W / 54.517°N 0.617°W / 54.517; -0.617) with the loss of ten of her crew.[171]
	Norway	World War I: The coaster was sunk in the English Channel 15 nautical miles (28 km) west of Portland Bill by SM UC-61 ( Imperial German Navy). Her crew survived.[172]
	United Kingdom	The tanker caught fire in the Atlantic Ocean. She was taken in tow by a United States Navy gunboat but subsequently sank.[138][173]
	Norway	World War I: The coaster was sunk in the English Channel 15 nautical miles (28 km) west of Portland Bill (50°32′N 2°47′W / 50.533°N 2.783°W / 50.533; -2.783) by SM UC-17 ( Imperial German Navy). Her crew survived.[174]

11 May[]

List of shipwrecks: 11 May 1917

Ship	Country	Description
	Russia	World War I: The brigantine was sunk in the Atlantic Ocean south west of Ireland by SM U-80 ( Imperial German Navy).[175]
	Imperial German Navy	World War I: The Augustenburg-class Vorpostenboot was sunk by mines northwest of .[156]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nautical miles (13 km) south of Mine Head, County Waterford by SM U-49 ( Imperial German Navy). Her crew survived.[5][176]
HMT Bracklyn	Royal Navy	World War I: The naval trawler struck a mine and sank in the North Sea off Great Yarmouth, Norfolk (52°42′N 2°10′E / 52.700°N 2.167°E / 52.700; 2.167) with the loss of ten of her crew.[177]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) west by south of Tearaght Island, County Donegal (52°00′N 10°40′W / 52.000°N 10.667°W / 52.000; -10.667) by SM U-80 ( Imperial German Navy). Her crew survived.[178]
	Canada	The steamer burned to the waterline and sank in near Fair Haven, New York on Lake Ontario when ( Canada) which was tied up alongside caught fire. Her machinery was salvaged. The wreck removed in late 1956 by the United States Army Corps of Engineers as a hazard to navigation.[179]
	Russia	World War I: The cargo ship was shelled and sunk in the Barents Sea off Vardø, Finnmark, Norway (71°16′N 33°45′E / 71.267°N 33.750°E / 71.267; 33.750) by SM U-45 ( Imperial German Navy) with the loss of all 34 crew.[180]
	United Kingdom	World War I: The cargo ship was torpedoed and damaged in the Mediterranean Sea between Algiers and Ténès, Algeria (36°37′N 1°55′E / 36.617°N 1.917°E / 36.617; 1.917) by SM U-47 ( Imperial German Navy) and was beached. She was later refloated.[181]
	Italy	The cargo ship ran aground and sank on the Wingletang Rock, Isles of Scilly, United Kingdom.[182][183]
	United Kingdom	The collier ran aground and sank at Porth Hellick Point, Isles of Scilly. Her crew survived.[11][183]
	Greece	World War I: The cargo ship was scuttled in the Mediterranean Sea off , Spain (40°49′N 1°00′E / 40.817°N 1.000°E / 40.817; 1.000) by SM U-34 ( Imperial German Navy). Her crew survived.[184]
Limassol	United Kingdom	World War I: The sailing vessel was scuttled in the Tyrrhenian Sea off Montecristo, Italy, by SM UC-35 ( Imperial German Navy).[5][185]
	Canada	The steamer burned to the waterline and sank in near Fair Haven, New York on Lake Ontario. Also burned was ( Canada) that was tied up alongside, along with 125 feet (38 m) of trestle belonging to the Lehigh Valley Railroad. Her machinery was salvaged. The wreck was removed in late 1956 by the United States Army Corps of Engineers as a hazard to navigation.[179]
Luisa Madre	Italy	World War I: The sailing vessel was sunk in the Tyrrhenian Sea off , Sardinia by SM UC-35 ( Imperial German Navy).[186]
Carolina	Italy	World War I: The sailing vessel was sunk in the Tyrrhenian Sea off Cape Figari by SM UC-35 ( Imperial German Navy).[187]
	France	World War I: The troopship was torpedoed and sunk in the Mediterranean Sea 6 nautical miles (11 km) off Cape Tortosa (40°45′N 1°12′E / 40.750°N 1.200°E / 40.750; 1.200) by SM U-34 ( Imperial German Navy) with the loss of 344 lives.[188]
Rosalia Madre	Italy	World War I: The sailing vessel was sunk in the Tyrrhenian Sea off Cape Figari by SM UC-35 ( Imperial German Navy).[189]
San Antonio	Italy	World War I: The sailing vessel was sunk in the Tyrrhenian Sea off Cape Figari by SM UC-35 ( Imperial German Navy).[190]
	United Kingdom	World War I: The coaster was scuttled in the English Channel 9 nautical miles (17 km) north of Port-en-Bessin, Manche, France (49°30′N 0°49′W / 49.500°N 0.817°W / 49.500; -0.817) by SM UB-18 ( Imperial German Navy). Her crew survived.[5][191]

12 May[]

List of shipwrecks: 12 May 1917

Ship	Country	Description
	United Kingdom	World War I: The cargo ship was scuttled in the Mediterranean Sea 240 nautical miles (440 km) south south east of Malta (34°20′N 18°52′E / 34.333°N 18.867°E / 34.333; 18.867) by SM U-38 ( Imperial German Navy). Her crew survived.[5][192]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the English Channel 3 nautical miles (5.6 km) east of Teignmouth, Devon (50°32′N 3°24′W / 50.533°N 3.400°W / 50.533; -3.400). Her crew survived.[193]
G.L.C.	United Kingdom	World War I: The fishing smack was scuttled in the Atlantic Ocean south east of the Eddystone Lighthouse by SM UC-17 ( Imperial German Navy). Her crew survived.[56][194]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 30 nautical miles (56 km) south east by south of Malta 35°23′N 14°56′E / 35.383°N 14.933°E / 35.383; 14.933) by SM U-32 ( Imperial German Navy) with the loss of six crew.[195]
	United Kingdom	World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 115 nautical miles (213 km) north west of Tory Island, County Donegal (55°10′N 11°35′W / 55.167°N 11.583°W / 55.167; -11.583) by SM U-57 ( Imperial German Navy) with the loss of a crew member.[5][196]
	United Kingdom	World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 64 nautical miles (119 km) north west of the Skelligs (52°25′N 11°42′W / 52.417°N 11.700°W / 52.417; -11.700) by SM U-48 ( Imperial German Navy) with the loss of a crew member.[5][197]
	United Kingdom	World War I: The cargo ship struck a mine and was damaged in the North Sea. She was beached but was later refloated. Her crew survived.[198]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Norwegian Sea 23 nautical miles (43 km) north west of Utvær, Sogn og Fjordane, Norway by SM U-19 ( Imperial German Navy) with the loss of a crew member.[199]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 12 nautical miles (22 km) north east by east of , Spain (40°10′N 0°25′E / 40.167°N 0.417°E / 40.167; 0.417) by SM U-34 ( Imperial German Navy) with the loss of a crew member.[5][200]

13 May[]

List of shipwrecks: 13 May 1917

Ship	Country	Description
	United States	The Schooner sank in the Connecticut River at Saybrook Point, Connecticut.[87]
	Denmark	World War I: The three-masted barque was sunk in the English Channel 30 nautical miles (56 km) north east of the Île de Batz, Finistère, France (49°12′N 4°26′W / 49.200°N 4.433°W / 49.200; -4.433) by SM UC-17 ( Imperial German Navy). Her crew survived.[84][201]
	Norway	World War I: The barque was sunk in the Atlantic Ocean 30 nautical miles (56 km) north north west of Ouessant, Finistère (48°48′N 7°56′W / 48.800°N 7.933°W / 48.800; -7.933) by SM UC-17 ( Imperial German Navy). Her crew survived.[202]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) west north west of the Fastnet Rock by SM U-48 ( Imperial German Navy). Her crew survived.[5][203]
L'Independiente F	Italy	World War I: The sailing vessel was scuttled in the Mediterranean Sea south of the Cabo de Gata, Spain (36°31′N 2°02′W / 36.517°N 2.033°W / 36.517; -2.033) by SM U-47 ( Imperial German Navy).[204]
	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea 150 nautical miles (280 km) south west of Crete, Greece (33°40′N 20°46′E / 33.667°N 20.767°E / 33.667; 20.767) by SM U-38 ( Imperial German Navy). Her crew survived.[205]

14 May[]

List of shipwrecks: 14 May 1917

Ship	Country	Description
Bel Lily	United Kingdom	World War I: The trawler struck a mine and sank in the North Sea 1.5 nautical miles (2.8 km) east north east of Peterhead, Aberdeenshire with the loss of ten of her crew.[206]
	United Kingdom	World War I: The barque was scuttled in the Atlantic Ocean 150 nautical miles (280 km) west of the Fastnet Rock by SM U-49 ( Imperial German Navy). Her crew survived.[207]
	United Kingdom	World War I: The schooner was scuttled in the English Channel 25 nautical miles (46 km) south by west of St. Catherine's Point, Isle of Wight by SM UB-18 ( Imperial German Navy). Her crew survived.[5][208]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 70 nautical miles (130 km) south west of the Bishop Rock, Isles of Scilly (48°56′N 7°22′W / 48.933°N 7.367°W / 48.933; -7.367) by SM UC-17 ( Imperial German Navy). Her crew survived.[5][209]
	Italy	World War I: The brigantine was scuttled in the Mediterranean Sea east of Sicily (37°41′N 15°29′E / 37.683°N 15.483°E / 37.683; 15.483) by SM U-63 ( Imperial German Navy).[210]
	Imperial German Navy	The Vorpostenboot was lost on this date.[119]
Gravelinoise	France	World War I: The sailing vessel was scuttled in the Mediterranean Sea 12 nautical miles (22 km) east of Valencia, Spain (39°27′N 0°05′W / 39.450°N 0.083°W / 39.450; -0.083) by SM U-34 ( Imperial German Navy). Her crew survived.[211]
	United States	The steamer was sunk in a collision with ( United States) off in the Soo River. Raised, taken to Toledo, Ohio for repairs and returned to service.[212][213]
Saint Francis	United States	During a voyage from San Francisco, California, to the Libby McNeil & Libby Ekuk Cannery at on the Bristol Bay coast of the Territory of Alaska with a crew of 17 and a 1,500-ton cargo of general merchandise and cannery supplies aboard, the 1,898-gross register ton, 231.4-foot (70.5 m) wooden ship was wrecked 1 nautical mile (1.9 km; 1.2 mi) south of (54°29′00″N 164°54′30″W / 54.48333°N 164.90833°W / 54.48333; -164.90833 (Middle Point)) on Unimak Island in the Aleutian Islands and became a total loss. The steamers Goliah and Norwood (flags unknown) rescued her entire crew.[214]
Saint Katherine	United States	The 1,201-gross register ton, 202-foot (62 m) bark ran aground at Ugashik, Territory of Alaska, and broke her keel. She was refloated late in the summer of 1917 and repaired.[214]
Standard	United States	During a voyage from San Francisco, California, to the Libby McNeil & Libby Ekuk Cannery at on the Bristol Bay coast of the Territory of Alaska with 162 passengers, a crew of 15 men, and a cargo of 2,707,349 pounds (1,228,033 kg) of cannery supplies aboard, the 1,534-gross register ton, 212-foot (65 m) wooden ship was wrecked without loss of life during a storm in Bristol Bay at Cape Constantine. All on board were rescued by the steamers George F. Haller and North Star (both  United States).[214]
	United States	The steamer was sunk in a collision with ( United States) off off the south end of Pipe Island in the Soo River. Raised and moved into shoal water by October, later taken to Collingwood, Ontario for repairs and returned to service.[212][213][215]
	Japan	The cargo ship sank at Aburatsu, Hyūga, Miyazaki.[182]
Tejo	Portugal	World War I: The sailing vessel was scuttled in the Mediterranean Sea (38°58′N 0°18′E / 38.967°N 0.300°E / 38.967; 0.300) by SM U-34 ( Imperial German Navy). Her crew survived.[216]
SM U-59	Imperial German Navy	World War I: The Type U 57 submarine struck a mine and sank in the North Sea (55°33′N 7°15′E / 55.550°N 7.250°E / 55.550; 7.250) with the loss of 33 of her 37 crew.
	United Kingdom	World War I: The cargo ship was torpedoed and damaged in the Mediterranean Sea east of Sicily by SM U-63 ( Imperial German Navy). She was beached but was later refloated.[217]

15 May[]

List of shipwrecks: 15 May 1917

Ship	Country	Description
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Regia Marina	World War I: The Nembo-class destroyer was shelled and sunk in the Adriatic Sea off the coast of Albania by and (both  Austro-Hungarian Navy).[219]
Boreas	Netherlands	World War I: The auxiliary sailing vessel was sunk in the North Sea 25 nautical miles (46 km) north west of IJmuiden, North Holland by SM UC-71 ( Imperial German Navy).[220]
Boutefeu	French Navy	World War I: Battle of the Strait of Otranto: The Bouclier-class destroyer struck a mine and sank in the Strait of Otranto off Brindisi, Apulia, Italy.[221]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	United Kingdom	World War I: The barquentine was scuttled in the English Channel 10 nautical miles (19 km) west of the ( United Kingdom) by SM UB-40 ( Imperial German Navy). Her crew survived.[5][222]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Italy	World War I: The cargo ship was torpedoed and damaged in the Strait of Messina by SM U-63 ( Imperial German Navy). She was beached but was later refloated.[223]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 200 nautical miles (370 km) west of Ireland (55°53′N 12°15′W / 55.883°N 12.250°W / 55.883; -12.250) by SM U-46 ( Imperial German Navy). Her crew survived.[224]
	Imperial German Navy	The Vorpostenboot was lost on this date.[119]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	France	World War I: The cargo ship was sunk in the Atlantic Ocean west of the Fastnet Rock (50°49′N 15°27′W / 50.817°N 15.450°W / 50.817; -15.450) by SM U-48 ( Imperial German Navy).[225]
Omilak Chief	United States	The 65-gross register ton, 70-foot (21.3 m) sternwheel paddle steamer was crushed by ice on the Fish River in the Territory of Alaska.[226]
	United Kingdom	World War I: The cargo ship was shelled and damaged in the Mediterranean Sea off , Spain by SM U-47 ( Imperial German Navy) and was beached. She was later refloated.[227]
	Greece	World War I: The cargo ship was sunk in the English Channel west of the Roches-Douvres Lighthouse (49°00′N 3°32′W / 49.000°N 3.533°W / 49.000; -3.533) by SM UB-18 ( Imperial German Navy). Her crew survived.[228]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 15 nautical miles (28 km) west of The Lizard, Cornwall by SM UC-75 ( Imperial German Navy) with the loss of eight of her crew.[229]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	United Kingdom	The brigantine ran aground at Ribeirinha Point, Faial, Azores, Portugal and was a total loss. Her crew were rescued.[230]
	Regia Marina	The Sirio-class torpedo boat collided with ( French Navy) and sank in the Mediterranean Sea off Pantellaria.[219]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	United States	The cargo ship ran aground at and was a total loss.[230]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]
	United Kingdom	World War I: The cargo ship was scuttled in the Mediterranean Sea 7 nautical miles (13 km) north of Cape San Antonio, Spain (39°02′N 0°19′E / 39.033°N 0.317°E / 39.033; 0.317) by SM U-34 ( Imperial German Navy) with the loss of a crew member. Three crew were taken as prisoners of war.[231]
	Royal Navy	World War I: Battle of the Strait of Otranto: The naval trawler was sunk in the Adriatic Sea by an Austro-Hungarian Navy warship.[218]

16 May[]

List of shipwrecks: 16 May 1917

Ship	Country	Description
HMS Dartmouth	Royal Navy	World War I: Battle of the Strait of Otranto: The Town-class cruiser was torpedoed and totally disabled in the Strait of Otranto off Brindisi, Apulia, Italy by SM UC-25 ( Imperial German Navy) with the loss of five of her 433 crew.[232] She was later repaired and returned to service.
	United Kingdom	World War I: The schooner was scuttled in the Mediterranean Sea 14 nautical miles (26 km) off , Spain (39°16′N 0°08′E / 39.267��N 0.133°E / 39.267; 0.133) by SM U-34 ( Imperial German Navy). Her crew survived.[233]
	Netherlands	World War I: The schooner was sunk in the English Channel south east of Start Point, Devon, United Kingdom by SM UB-20 ( Imperial German Navy).[234]
Hendrika Johana	Netherlands	World War I: The sailing vessel was shelled and sunk in the North Sea north of the ( Netherlands) (52°31′N 4°20′E / 52.517°N 4.333°E / 52.517; 4.333) by SM UC-71 ( Imperial German Navy).[235]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 4 nautical miles (7.4 km) south of the ( United Kingdom) (50°28′N 0°38′W / 50.467°N 0.633°W / 50.467; -0.633) by SM UB-40 ( Imperial German Navy) with the loss of five of her crew.[236]
Hilonian	United States	World War I: The cargo ship was torpedoed and sunk in the Gulf of Genoa 3 nautical miles (5.6 km) off the mouth of the Albegna by SM UC-35 ( Imperial German Navy) with the loss of four of her crew.[237][23][238]
	Imperial German Navy	World War I: The minesweeper was sunk by mines in the North Sea.[239]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) north west of Tory Island, County Donegal (56°03′N 12°30′W / 56.050°N 12.500°W / 56.050; -12.500) by SM U-30 ( Imperial German Navy). Her crew survived.[5][240]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 16 nautical miles (30 km) west of Beachy Head, Sussex (50°40′N 0°10′W / 50.667°N 0.167°W / 50.667; -0.167) by SM UB-40 ( Imperial German Navy) with the loss of four of her crew.[5][241]
SMS S17	Imperial German Navy	World War I: The V1-class destroyer struck a mine and sank in the North Sea with the loss of 25 of her crew.[219]

17 May[]

List of shipwrecks: 17 May 1917

Ship	Country	Description
Alfonso	Italy	World War I: The sailing vessel was scuttled in the Mediterranean Sea 10 nautical miles (19 km) off Denia, Spain (39°00′N 0°10′E / 39.000°N 0.167°E / 39.000; 0.167) by SM U-34 ( Imperial German Navy).[242]
	United Kingdom	World War I: The coaster was shelled and sunk in the North Sea 20 nautical miles (37 km) east of the Noord Hinder Lightship ( Netherlands) by a Kaiserliche Marine torpedo boat with the loss of eleven of her crew.[5]
	Greece	World War I: The cargo ship was sunk in the Atlantic Ocean 50 nautical miles (93 km) south south west of Cadiz, Spain (36°55′N 6°31′W / 36.917°N 6.517°W / 36.917; -6.517) by SM U-47 ( Imperial German Navy). Her crew survived.[243]
	United Kingdom	World War I: The schooner was scuttled in the English Channel 8 nautical miles (15 km) off The Needles, Isle of Wight by SM UB-40 ( Imperial German Navy). Her crew survived.[244]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) west of Tearaght Island, County Kerry by SM U-49 ( Imperial German Navy). Her crew survived.[5][245]
Jakoba	Netherlands	World War I: The fishing vessel was scuttled in the North Sea off Den Helder, North Holland by SM UC-71 ( Imperial German Navy). Her crew survived.[246]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 10 nautical miles (19 km) west north west of The Lizard, Cornwall (49°58′N 5°19′W / 49.967°N 5.317°W / 49.967; -5.317) by SM UB-20 ( Imperial German Navy) with the loss of 21 of her crew.[247]
	United Kingdom	World War I: The cargo ship was sunk in the Atlantic Ocean west of Ireland by SM U-46 ( Imperial German Navy) with the loss of 24 crew. Three survivors were taken as prisoners of war.[248]
	Russia	World War I: The four-masted barque was shelled and sunk in the Atlantic Ocean (51°00′N 12°18′W / 51.000°N 12.300°W / 51.000; -12.300).[249]
Mercurius	Netherlands	World War I: The fishing vessel was scuttled in the North Sea 17 nautical miles (31 km) north west of Noordwijk, North Holland by SM UC-71 ( Imperial German Navy). Her crew survived.[250]
HMS Setter	Royal Navy	The R-class destroyer collided with HMS Sylph ( Royal Navy) and sank in the North Sea off Harwich, Essex.[219]
	Sweden	World War I: The cargo ship was sunk in the North Sea 30 nautical miles (56 km) east of Lerwick, Shetland Isles, United Kingdom by SM U-19 ( Imperial German Navy).[251] Three casualties.[252]
	Sweden	World War I: The cargo ship was sunk with the loss of eight crew in the North Sea 20 nautical miles (37 km) east of the Orkney Islands, United Kingdom[253] by SM UC-31 ( Imperial German Navy).[254]

18 May[]

List of shipwrecks: 18 May 1917

Ship	Country	Description
Adventure	United Kingdom	World War I: The drifter was shelled and sunk in the Atlantic Ocean south west of the Bishop Rock, Isles of Scilly by SM UB-20 ( Imperial German Navy). Her crew survived.[255]
	Netherlands	World War I: The coaster was scuttled in the North Sea 40 nautical miles (74 km) off IJmuiden, North Holland by SM UC-71 ( Imperial German Navy).[256]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the English Channel 6 nautical miles (11 km) south east by south of Dunnose Head, Isle of Wight (50°35′N 1°03′W / 50.583°N 1.050°W / 50.583; -1.050) with the loss of seven of her crew.[257]
C.E.C.G.	United Kingdom	World War I: The ketch was scuttled in the English Channel 30 nautical miles (56 km) south south east of Start Point, Devon (50°48′N 4°48′W / 50.800°N 4.800°W / 50.800; -4.800) by SM UC-70 ( Imperial German Navy). Her crew survived.[258]
	United Kingdom	World War I: The coaster was shelled and sunk in the English Channel 6 nautical miles (11 km) south of St. Martin's Point, Guernsey, Channel Islands by SM UC-70 ( Imperial German Navy). Her crew survived.[5][259]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the English Channel 2 nautical miles (3.7 km) south of the Nab Lightship ( United Kingdom) (50°38′N 0°58′W / 50.633°N 0.967°W / 50.633; -0.967). Her crew survived.[260]
Frances M.	United States	World War I: The sailing vessel was scuttled in the Atlantic Ocean west of Gibraltar (35°29′N 8°18′W / 35.483°N 8.300°W / 35.483; -8.300) by SM U-47 ( Imperial German Navy). Her crew survived, but a crew member of U-47 was lost during the scuttling operation.[261]
Llandrindod	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 165 nautical miles (306 km) north west by west of the Fastnet Rock (51°45′N 13°58′W / 51.750°N 13.967°W / 51.750; -13.967) by SM U-46 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[5][262]
	Royal Navy	World War I: The naval trawler struck a mine and sank in the English Channel 2 nautical miles (3.7 km) west of the ( United Kingdom) with the loss of nine of her crew.[263]
	United Kingdom	World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 2.5 nautical miles (4.6 km) west of Pendeen Cove, Cornwall (50°10′N 5°44′W / 50.167°N 5.733°W / 50.167; -5.733)with the loss of seven of her crew.[264]
	United Kingdom	World War I: The collier was torpedoed and sunk in the Mediterranean Sea 130 nautical miles (240 km) east by south of Malta (35°37′N 17°13′E / 35.617°N 17.217°E / 35.617; 17.217) by SM UC-20 ( Imperial German Navy) with the loss of a crew member.[138][265]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 72 nautical miles (133 km) north west by north of Tearaght Island, County Kerry by SM U-46 ( Imperial German Navy) with the loss of a crew member. Her captain was taken as a prisoner of war.[266]
Primrose	United Kingdom	World War I: The drifter was shelled and sunk in the Atlantic Ocean 22 nautical miles (41 km) west by south of the Bishop Rock by SM UB-20 ( Imperial German Navy). Her crew survived.[267]

19 May[]

List of shipwrecks: 19 May 1917

Ship	Country	Description
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 19 nautical miles (35 km) north of Ouessant, Finistère, France by SM UB-20 ( Imperial German Navy). Her crew survived.[268]
	Denmark	World War I: The schooner was sunk in the North Sea (57°28′N 3°10′E / 57.467°N 3.167°E / 57.467; 3.167) by SM U-45 ( Imperial German Navy) with the loss of six crew.[269]
	Sweden	World War I: The coaster was sunk in the Baltic Sea off the coast of Finland (60°15′N 19°44′E / 60.250°N 19.733°E / 60.250; 19.733) by SM UC-58 ( Imperial German Navy). Her crew survived.[270]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 90 nautical miles (170 km) north west of the Fastnet Rock by SM U-57 ( Imperial German Navy) with the loss of seventeen crew.[5][271]
	Sweden	World War I: The coaster was sunk in the Baltic Sea off the coast of Finland[272] by SM UC-58 ( Imperial German Navy). Her crew survived.[273]
	Sweden	World War I: The coaster was sunk in the Baltic Sea off the coast of Finland[274] by SM UC-58 ( Imperial German Navy). Her crew survived.[275]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 4 nautical miles (7.4 km) south by west of , Spain (38°05′N 0°31′W / 38.083°N 0.517°W / 38.083; -0.517) by SM U-34 ( Imperial German Navy). Her crew survived.[276]
	United Kingdom	World War I: The cargo ship was sunk in the Mediterranean Sea 90 nautical miles (170 km) south east by south of Cape Matapan, Greece (35°02′N 22°05′E / 35.033°N 22.083°E / 35.033; 22.083) by SM U-28 ( Austro-Hungarian Navy) with the loss of 21 of her crew.[277]
Olga	Sweden	World War I: The sailing vessel was sunk in the Baltic Sea off the coast of Finland by SM UC-58 ( Imperial German Navy).[278]
	Sweden	World War I: The coaster was scuttled in the Baltic Sea off Rauma, Finland by SM UC-58 ( Imperial German Navy). Her crew survived.[279]
	Sweden	World War I: The coaster was scuttled in the Baltic Sea off the coast of Finland[280] by SM UC-58 ( Imperial German Navy). Her crew survived.[281]
	United States	The schooner barge capsized one mile (1.6 km) off Tampico, Mexico. The vessel drifted ashore six miles (9.7 km) north of Tampico the next day, a total loss.[19][146]

20 May[]

List of shipwrecks: 20 May 1917

Ship	Country	Description
	Norway	World War I: The cargo ship was torpedoed and sunk in the Norwegian Sea 16 nautical miles (30 km) west of Holmengrå, Finnmark by SM U-19 ( Imperial German Navy). Her crew survived.[282]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 3 nautical miles (5.6 km) off , Spain (37°53′N 0°22′W / 37.883°N 0.367°W / 37.883; -0.367) by SM U-34 ( Imperial German Navy) with the loss of 25 crew. Three survivors were taken as prisoners of war.[5][283]
	United Kingdom	World War I: The brigantine was scuttled in the English Channel 20 nautical miles (37 km) north west of Guernsey, Channel Islands by SM UC-36 ( Imperial German Navy). Her crew survived.[5][284]
HMS Paxton	Royal Navy	World War I: The Q-ship was sunk in the Atlantic Ocean 90 nautical miles (170 km) west of the Skelligs (51°42′N 13°13′W / 51.700°N 13.217°W / 51.700; -13.217) by SM U-46 ( Imperial German Navy) with the loss of 31 crew. Two survivors were taken as prisoners of war.[285]
Mientji	United Kingdom	World War I: The sailing vessel was scuttled in the English Channel 25 nautical miles (46 km) off the Les Hanois Lighthouse, Guernsey by SM UC-36 ( Imperial German Navy). Her crew survived.[286]
	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 25 nautical miles (46 km) north of Ouessant, Finistère, France by SM UB-20 ( Imperial German Navy). Her crew survived.[287]
	United Kingdom	World War I: The collier was torpedoed and sunk in the English Channel 16 nautical miles (30 km) west by south of Beachy Head, Sussex (50°38′N 0°08′W / 50.633°N 0.133°W / 50.633; -0.133) by SM UB-40 ( Imperial German Navy) with the loss of seven of her crew.[5][138][288]
	Brazil	World War I: The cargo ship was sunk in the Atlantic Ocean 5 nautical miles (9.3 km) south west of the , Finistère, France by SM UC-36 ( Imperial German Navy). Her crew survived. Some salvaging was done.[289][290]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 16 nautical miles (30 km) west of Beachy Head by SM UB-40 ( Imperial German Navy) with the loss of fifteen of her crew.[5][291]
Voorwaarts	Netherlands	World War I: The sailing vessel was damaged in the North Sea off Terschelling, Friesland by SM UC-64 ( Imperial German Navy). She was towed in to Great Yarmouth, Norfolk, United Kingdom but was declared a total loss.[292]

21 May[]

List of shipwrecks: 21 May 1917

Ship	Country	Description
	Royal Navy	World War I: The collier was torpedoed and sunk in the Mediterranean Sea 15 nautical miles (28 km) west south west of Gozo, Malta (36°10′N 13°30′E / 36.167°N 13.500°E / 36.167; 13.500) by SM U-65 ( Imperial German Navy) with the loss of four of her crew.[5][11][293]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 12 nautical miles (22 km) south west of The Lizard, Cornwall (49°54′N 5°30′W / 49.900°N 5.500°W / 49.900; -5.500) by SM UB-31 ( Imperial German Navy). Her crew survived.[294]
	United Kingdom	World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 40 nautical miles (74 km) east by south of Linosa, Italy (35°50′N 13°40′E / 35.833°N 13.667°E / 35.833; 13.667) by SM U-65 ( Imperial German Navy) with the loss of five of her crew.[5][295]
	France	World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 10 to 15 nautical miles (19 to 28 km) off the , Ouessant, Finistère (48°40′N 5°10′W / 48.667°N 5.167°W / 48.667; -5.167) by SM UC-36 ( Imperial German Navy). Her crew survived.[296]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 15 nautical miles (28 km) west of Beachy Head, Sussex (50°38′N 0°05′W / 50.633°N 0.083°W / 50.633; -0.083) by SM UB-40 ( Imperial German Navy) with the loss of nineteen of her crew.[5][297]
Lanthorn	United Kingdom	World War I: The cargo ship was captured and scuttled in the North Sea off Whitby, Yorkshire by SM UB-41 ( Imperial German Navy). Her crew survived.
	Russia	World War I: The four-masted barque was sunk in the Atlantic Ocean 50 nautical miles (93 km) off Queenstown, County Cork, United Kingdom by SM U-48 ( Imperial German Navy).[298]
	Norway	World War I: The barque was scuttled in the Atlantic Ocean 50 nautical miles (93 km) south west of Queenstown by SM U-48 ( Imperial German Navy) with the loss of two crew.[299]
	France	World War I: The brigantine was scuttled in the Mediterranean Sea south of the Balearic Islands (37°55′N 1°15′E / 37.917°N 1.250°E / 37.917; 1.250) by SM U-34 ( Imperial German Navy).[300]
	Royal Navy	World War I: The naval trawler struck a mine and sank in the Atlantic Ocean off Tory Island, County Donegal (55°15′N 8°10′W / 55.250°N 8.167°W / 55.250; -8.167) with the loss of eleven crew.[301]
SM UC-36	Imperial German Navy	World War I: The Type UC II submarine was rammed and sunk in the Bay of Biscay off Ouessant (48°42′N 5°14′W / 48.700°N 5.233°W / 48.700; -5.233) by ( France) with the loss of all 26 crew.

22 May[]

List of shipwrecks: 22 May 1917

Ship	Country	Description
	Royal Navy	The naval trawler was lost on this date.[11]
Jeune Albert	France	World War I: The fishing vessel was sunk in the Bay of Biscay by SM UC-21 ( Imperial German Navy).[302]
	United Kingdom	World War I: The cargo ship was sunk in the North Sea 3 nautical miles (5.6 km) east of Whitby, Yorkshire (54°30′N 0°29′W / 54.500°N 0.483°W / 54.500; -0.483) by SM UB-41 ( Imperial German Navy). Her crew survived.[303]
	Brazil	World War I: The cargo ship was scuttled in the Atlantic Ocean 130 nautical miles (240 km) west south west of Gibraltar (35°28′N 8°03′W / 35.467°N 8.050°W / 35.467; -8.050) by SM U-47 ( Imperial German Navy).[304]
	Imperial German Navy	World War I: The Neuwerk-class Vorpostenboot was sunk by mines northeast of Ameland.[305]
	Royal Navy	World War I: The naval trawler struck a mine and sank in the Firth of Clyde 6 nautical miles (11 km) south east of Garroch Head, Isle of Bute with the loss of all seventeen crew.[306]
	United Kingdom	The collier collided with another vessel and sank in the English Channel off St. Alban's Head, Dorset.[307]
	Norway	World War I: The cargo ship struck a mine and sank in the Bay of Biscay between Belle Île and Groix, Morbihan, France (47°13′N 3°14′W / 47.217°N 3.233°W / 47.217; -3.233). Her crew survived.[308]
	Japan	World War I: The cargo ship was sunk in the Atlantic Ocean 80 nautical miles (150 km) west of , County Mayo, United Kingdom (54°10′N 12°40′W / 54.167°N 12.667°W / 54.167; -12.667) by SM U-46 ( Imperial German Navy). Her crew survived.[309]

23 May[]

List of shipwrecks: 23 May 1917

Ship	Country	Description
Alberdina	Netherlands	World War I: The sailing vessel was scuttled in the North Sea 25 nautical miles (46 km) north west of the ( Netherlands) by SM UC-64 ( Imperial German Navy). Her crew survived.[310]
	Spain	World War I: The cargo ship was sunk in the Atlantic Ocean 29 nautical miles (54 km) north of Ouessant, Finistère, France (48°55′N 5°04′W / 48.917°N 5.067°W / 48.917; -5.067) by SM UC-70 ( Imperial German Navy). Her crew survived.[311]
Beinir	Denmark	World War I: The fishing vessel was sunk in the Atlantic Ocean off the Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[312]
Britannia	Denmark	World War I: The fishing vessel was sunk in the Atlantic Ocean off the Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[313]
Else	Denmark	World War I: The fishing vessel was sunk in the Atlantic Ocean off the Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[314]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 36 nautical miles (67 km) east by south of Syracuse, Sicily, Italy (36°54′N 16°09′E / 36.900°N 16.150°E / 36.900; 16.150) by SM UC-67 ( Imperial German Navy). Her crew survived but her captain was taken as a prisoner of war.[5][315]
	Netherlands	World War I: The coaster was sunk in the Atlantic Ocean off the north coast of Scotland (59°39′N 3°20′W / 59.650°N 3.333°W / 59.650; -3.333) by SM U-87 ( Imperial German Navy).[316]
	United Kingdom	World War I: The collier was scuttled in the Mediterranean Sea 40 nautical miles (74 km) south by east of Cap Bon, Tunisia (36°20′N 11°15′E / 36.333°N 11.250°E / 36.333; 11.250) by SM U-65  Imperial German Navy with the loss of three crew.[5][11][317]
	Denmark	World War I: The three-masted schooner was sunk in the Atlantic Ocean 60 nautical miles (110 km) north west of the Butt of Lewis, United Kingdom by SM U-30 ( Imperial German Navy) with the loss of two crew.[318]
	Norway	World War I: The cargo ship struck a mine and sank in the North Sea off Ryhope, County Durham, United Kingdom (54°54′N 1°20′W / 54.900°N 1.333°W / 54.900; -1.333). Her crew survived.[319]
	United States	World War I: The schooner was shelled and sunk in the 6 nautical miles (11 km) south west of the (47°16′N 2°30′W / 47.267°N 2.500°W / 47.267; -2.500) by SM UC-21 ( Imperial German Navy). Her crew were rescued by ( French Navy).[320]
	Norway	World War I: The cargo ship was sunk in the North Sea 110 nautical miles (200 km) north north east of Flamborough Head, Yorkshire, United Kingdom (56°05′N 2°00′E / 56.083°N 2.000°E / 56.083; 2.000) by SM U-88 ( Imperial German Navy). Her crew survived.[321]
	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 8 nautical miles (15 km) west of the , Vendée, France (46°57′N 2°30′W / 46.950°N 2.500°W / 46.950; -2.500) by SM UC-21 ( Imperial German Navy) with the loss of four of her crew.[5][322]
Margrethe	Denmark	World War I: The fishing vessel was sunk in the Atlantic Ocean off the Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[323]
Febronia Maria Antonina	Italy	World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-65 ( Imperial German Navy).[324]
	Norway	World War I: The cargo ship was sunk in the North Sea 2 nautical miles (3.7 km) east of Seaham, County Durham, United Kingdom by SM UB-41 ( Imperial German Navy) with the loss of ten of her crew.[325]
Olearia	United Kingdom	World War I: The fishing vessel was scuttled in the Atlantic Ocean 65 nautical miles (120 km) west south west of Suðuroy, Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[56][326]
	Imperial German Navy	The Vorpostenboot was lost on this date.[119]
Pipitsa	Greece	World War I: The sailing vessel was scuttled in the Tyrrhenian Sea east of Corsica, France (42°00′N 9°59′E / 42.000°N 9.983°E / 42.000; 9.983) by SM UC-35 ( Imperial German Navy).[327]
Sisapon	United Kingdom	World War I: The trawler was sunk in the Atlantic Ocean 60 nautical miles (110 km) west south west of Suðuroy by SM UC-33 ( Imperial German Navy). Her crew survived.[328]
Streymoy	Denmark	World War I: The trawler was sunk in the Atlantic Ocean off the Faroe Islands by SM UC-33 ( Imperial German Navy). Her crew survived.[329]
	Royal Navy	World War I: The naval trawler struck a mine and sank in the North Sea off Lowestoft, Suffolk (52°30′N 1°54′E / 52.500°N 1.900°E / 52.500; 1.900) with the loss of six of her crew.[330]

24 May[]