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

1 April

List of shipwrecks: 1 April 1917

Ship	State	Description
Aztec	United States	World War I: The cargo ship was sunk in the Atlantic Ocean off Ouessant, Finistère, France (48°20′N 6°00′W / 48.333°N 6.000°W / 48.333; -6.000) by SM U-46 ( Imperial German Navy) with the loss of 27 crew, and one gunner missing, when a lifeboat was smashed against her hull during launch.[1][2]
Bergenhus	Denmark	World War I: The passenger ship was sunk in the North Sea 130 nautical miles (240 km) east of the Farne Islands, Northumberland, United Kingdom by SM UC-40 ( Imperial German Navy). There were no casualties.[3]
Camilla	Norway	World War I: The cargo ship was sunk in the North Sea 150 nautical miles (280 km) west of Skudesnes, Rogaland (56°32′N 3°59′E / 56.533°N 3.983°E / 56.533; 3.983) by SM UB-35 ( Imperial German Navy) with the loss of eight of her crew.[4]
Consul Persson	Norway	World War I: The cargo ship was sunk in the North Sea (58°21′N 2°55′E / 58.350°N 2.917°E / 58.350; 2.917) by SM U-54 ( Imperial German Navy). Her crew survived.[5]
Eastern Belle	United Kingdom	World War I: The ketch was scuttled in the English Channel 30 nautical miles (56 km) south west of St. Catherine's Point, Isle of Wight by SM UC-72 ( Imperial German Navy). Her crew survived.[6]
Endymion	United Kingdom	World War I: The ketch was shelled and sunk in the English Channel off Start Point, Devon by SM UB-32 ( Imperial German Navy) with the loss of four crew.[7]
Ester	Denmark	World War I: The cargo ship was sunk in the North Sea (56°32′N 4°18′E / 56.533°N 4.300°E / 56.533; 4.300) by SM UB-35 ( Imperial German Navy). Her crew survived.[8]
Fjelland	Norway	World War I: The coaster was sunk in the North Sea 50 nautical miles (93 km) south west by west of Utsire, Rogaland (58°20′N 5°50′E / 58.333°N 5.833°E / 58.333; 5.833) by SM U-54 ( Imperial German Navy) with the loss of a crew member.[9]
Jolie Brise	France	World War I: The fishing vessel was sunk in the Atlantic Ocean 20 nautical miles (37 km) off Audierne, Finistère by SM UB-36 ( Imperial German Navy).[10]
Kasenga	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 2 nautical miles (3.7 km) off Cape Palos, Spain by an enemy submarine.[11]
Maria Santissima D. Grazie	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off Sicily by SM U-65 ( Imperial German Navy).[12]
Maria T.	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off Sicily by SM U-65 ( Imperial German Navy).[13]
Providence de Dieu	France	World War I: The fishing vessel was sunk in the Atlantic Ocean 20 nautical miles (37 km) off Audierne by SM UB-36 ( Imperial German Navy).[14]
Silvia	United Kingdom	World War I: The schooner was scuttled in the English Channel 15 nautical miles (28 km) south south east of the Owers Lightship ( United Kingdom) (50°19′N 0°28′W / 50.317°N 0.467°W / 50.317; -0.467) by SM UB-39 ( Imperial German Navy). Her crew survived.[15]
Warren	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Tyrrhenian Sea 20 nautical miles (37 km) south west of Civitavecchia, Lazio, Italy (41°51′N 11°22′E / 41.850°N 11.367°E / 41.850; 11.367) by SM UC-38 ( Imperial German Navy) with the loss of three of her crew. Her captain was taken as a prisoner of war.[11][16]
Zambesi	United Kingdom	World War I: The collier was torpedoed and sunk in the Mediterranean Sea 15 nautical miles (28 km) north by west of Alexandria, Egypt (31°26′N 29°49′E / 31.433°N 29.817°E / 31.433; 29.817) by SM U-63 ( Imperial German Navy) with the loss of three crew.[11][17][18]

2 April

List of shipwrecks: 2 April 1917

Ship	State	Description
Britannia	United Kingdom	World War I: The cargo ship torpedoed and was sunk in the Mediterranean Sea 22 nautical miles (41 km) west north west of Pantelleria, Italy (36°35′N 11°28′E / 36.583°N 11.467°E / 36.583; 11.467) by SM U-65 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war.[11][19]
HMT Commandant	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-7 ( Imperial German Navy) and sank in the North Sea off the Sunk Lightship ( United Kingdom) (51°33′N 1°36′E / 51.550°N 1.600°E / 51.550; 1.600) with the loss of five of her crew.[20]
Filicudi	Regia Marina	World War I: The naval tug struck a mine placed by SM UC-38 ( Imperial German Navy) and sank in the Mediterranean Sea off Trapani, Sicily.[21]
Havlyst	Norway	World War I: The coaster was sunk in the North Sea off Lindesnes, Vest-Agder (57°30′N 6°50′E / 57.500°N 6.833°E / 57.500; 6.833) by SM U-54 ( Imperial German Navy). Her crew survived.[22]
Anna Fostenes	Norway	World War I: The cargo ship was sunk, probably by a floating mine, 90 miles (140 km) north of Terschelling, with the loss of eight crewman.[23]
Lord Scarborough	United Kingdom	World War I: The trawler was sunk in the North Sea 100 nautical miles (190 km) east of the Isle of May, Fife by SM UB-35 ( Imperial German Navy). Her crew survived.[24]
Sagitta	Norway	World War I: The barque was sunk in the North Sea (60°00′N 2°00′W / 60.000°N 2.000°W / 60.000; -2.000) by SM U-78 ( Imperial German Navy). Her crew survived.[25]
Snespurven	Norway	World War I: The barque was shelled and sunk in the Atlantic Ocean 25 nautical miles (46 km) south south west of the Tuskar Rock, Ireland (50°55′N 7°03′W / 50.917°N 7.050°W / 50.917; -7.050) by SM U-59 ( Imperial German Navy). Her crew survived.[26]
Zealandia	United States	The ship ran aground off Southport, Lancashire, United Kingdom.[27]

3 April

List of shipwrecks: 3 April 1917

Ship	State	Description
Annunziata A.	Italy	World War I: The brigantine was scuttled in the Mediterranean Sea east of Sardinia (39°52′N 10°04′E / 39.867°N 10.067°E / 39.867; 10.067) by SM UC-38 ( Imperial German Navy).[28]
Ardgask	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 15 nautical miles (28 km) south west of Cape Rosello, Sicily by SM U-35 ( Imperial German Navy) with the loss of a crew member.[11][29]
Caterina R.	Italy	World War I: The barquentine was scuttled in the Mediterranean Sea east of Sicily (39°27′N 9°46′E / 39.450°N 9.767°E / 39.450; 9.767) by SM UC-38 ( Imperial German Navy).[30]
Domenico	Italy	World War I: The sailing vessel was scuttled in the Mediterranean Sea east of Sardinia (39°24′N 9°55′E / 39.400°N 9.917°E / 39.400; 9.917) by SM UC-38 ( Imperial German Navy).[31]
Ellen James	United Kingdom	World War I: The schooner was shelled and sunk in the Atlantic Ocean west of Ouessant, Finistère, France by SM UC-71 ( Imperial German Navy) with the loss of five of her crew.[11][32]
Ernest Simons	France	World War I: The passenger ship was sunk in the Mediterranean Sea north east of Cap Sera, Algeria (37°08′N 8°28′E / 37.133°N 8.467°E / 37.133; 8.467) by SM UC-37 ( Imperial German Navy). Her crew survived.[33]
Hesperus	Russia	World War I: The cargo ship was sunk in the Atlantic Ocean 72 nautical miles (133 km) off the Bishop Rock, Isles of Scilly, United Kingdom (48°50′N 7°20′W / 48.833°N 7.333°W / 48.833; -7.333) by SM U-46 ( Imperial German Navy). Her crew survived.[34]
Maria Ferrara	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea west of Sicily by SM U-65 ( Imperial German Navy).[35]
Nuova Maria di Porto Salvo	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea east of Sicily by SM UC-38 ( Imperial German Navy).[36]
Saint Simon	France	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 20 nautical miles (37 km) north west of La Galite, Tunisia (37°36′N 8°38′E / 37.600°N 8.633°E / 37.600; 8.633) by SM UC-37 ( Imperial German Navy).[37]
Vasilefs Constantinos	Greece	World War I: The cargo ship was sunk in the Aegean Sea 45 nautical miles (83 km) south west of Akra Akritas by SM UB-43 ( Imperial German Navy).[38]

4 April

List of shipwrecks: 4 April 1917

Ship	State	Description
City of Paris	United Kingdom	World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea 46 nautical miles (85 km) south by east of Cap d'Antibes, Alpes-Maritimes, France (42°54′N 7°38′E / 42.900°N 7.633°E / 42.900; 7.633) by SM UC-35 ( Imperial German Navy) with the loss of 122 lives.[11][39]
Domingo	Italy	World War I: The cargo ship was sunk in the Atlantic Ocean off Queenstown, County Cork, United Kingdom by SM U-60 ( Imperial German Navy).[40]
Gibraltar	United Kingdom	World War I: The trawler was scuttled in the North Sea 20 nautical miles (37 km) east north east of Rattray Head, Aberdeenshire by SM UB-35 ( Imperial German Navy). Her crew survived.[41][42]
Hundvaagø	Norway	World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean south west of Ireland. She was beached at Castletownbere, County Cork. Subsequently repaired and returned to service.[43]
Hunstanton	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 36 nautical miles (67 km) west of the Isles of Scilly (49°50′N 7°40′W / 49.833°N 7.667°W / 49.833; -7.667) by SM UC-30 ( Imperial German Navy). Her crew survived.[44]
Maggie Ross	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 60 nautical miles (110 km) north east of Girdle Ness, Aberdeenshire by SM UB-35 ( Imperial German Navy). Her crew survived.[42][45]
Margit	United Kingdom	World War I: The collier was torpedoed and sunk in the Mediterranean Sea 80 nautical miles (150 km) south west of Cape Matapan, Greece (35°28′N 21°24′E / 35.467°N 21.400°E / 35.467; 21.400) by SM U-63 ( Imperial German Navy). Her crew survived.[11][17][46]
Marguerite	United States	World War I: The four-masted schooner was captured and damaged in attempting to scuttle her with a torpedo or by scuttling charges in the Mediterranean Sea 35 nautical miles (65 km) south west of Sardinia by SM U-35 ( Imperial German Navy). She sank the next day. Her crew was rescued by a French torpedo boat 46 hours later.[47][48][49]
Missourian	United States	World War I: The cargo ship was shelled and sunk in the Tyrrhenian Sea off Porto Maurizio, Liguria, Italy by SM U-52 ( Imperial German Navy). Her crew survived.[50][48][51]
Monte Protedigo	Argentina	World War I: The barquentine was sunk in the Atlantic Ocean off the Isles of Scilly (49°27′N 6°44′W / 49.450°N 6.733°W / 49.450; -6.733) by SM UC-30 ( Imperial German Navy).[52]
Parana	Brazil	World War I: The cargo ship was sunk in the English Channel off Barfleur, Manche, France by SM UB-32 ( Imperial German Navy). Her crew survived.[53]
Parkgate	United Kingdom	World War I: The cargo ship was scuttled in the Mediterranean Sea 80 nautical miles (150 km) north east of the Cap de Fer, Algeria (38°12′N 8°10′E / 38.200°N 8.167°E / 38.200; 8.167) by SM U-35 ( Imperial German Navy) with the loss of sixteen crew. Her captain was taken as a prisoner of war.[54]
Penseiro	Italy	World War I: The cargo ship was scuttled in the Atlantic Ocean 40 nautical miles (74 km) west of the Isles of Scilly by SM UC-71 ( Imperial German Navy). Her crew survived.[55]
Ravenna	Italy	World War I: The passenger ship was sunk in the Tyrrhenian Sea 2 nautical miles (3.7 km) off Cape Mele, Liguria (44°00′N 8°28′E / 44.000°N 8.467°E / 44.000; 8.467) by SM U-52 ( Imperial German Navy).[56]
San Giovanni Battiste	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea by SM UC-37 ( Imperial German Navy).[57]
Trevier	Belgium	World War I: The cargo ship was torpedoed, shelled and sunk in the North Sea off Scheveningen, South Holland, Netherlands (52°15′N 3°49′E / 52.250°N 3.817°E / 52.250; 3.817 (SS Trevier)) by SM UB-23 ( Imperial German Navy).[58]
Vladimir Reitz	Denmark	World War I: The cargo ship was sunk in the Atlantic Ocean 40 nautical miles (74 km) north west by north of Foula, Shetland Islands, United Kingdom by SM U-78 ( Imperial German Navy) with the loss of two crew.[59]

5 April

List of shipwrecks: 5 April 1917

Ship	State	Description
Amiral L'Hermite	France	World War I: The schooner was scuttled in the Atlantic Ocean 60 nautical miles (110 km) west north west of the Blasket Islands, County Kerry, United Kingdom by SM U-59 ( Imperial German Navy).[60]
Angel Marina	Italy	World War I: The sailing vessel was scuttled in the Ligurian Sea (43°16′N 7°10′E / 43.267°N 7.167°E / 43.267; 7.167) by SM U-52 ( Imperial German Navy).[61]
Benheather	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 110 nautical miles (200 km) west north west of the Fastnet Rock (51°20′N 12°30′W / 51.333°N 12.500°W / 51.333; -12.500) by SM U-46 ( Imperial German Navy). Her crew survived.[62]
Bris	Denmark	World War I: The schooner was sunk in the Atlantic Ocean 20 nautical miles (37 km) north of the Butt of Lewis, Outer Hebrides, United Kingdom by SM U-78 ( Imperial German Navy) with the loss of two of her crew.[63]
Calliope	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Tyrrhenian Sea 35 nautical miles (65 km) south west of Ustica, Italy (38°22′N 11°25′E / 38.367°N 11.417°E / 38.367; 11.417) by SM U-65 ( Imperial German Navy) with the loss of six lives. Three survivors were taken as prisoners of war.[64]
Canadian	United Kingdom	World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 47 nautical miles (87 km) north west of the Fastnet Rock (51°36′N 10°48′W / 51.600°N 10.800°W / 51.600; -10.800) by SM U-59 ( Imperial German Navy) with the loss of a crew member.[65]
Dicto	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean south east of the Armen Rock by SM UB-39 ( Imperial German Navy) with the loss of a crew member.[66]
Dunkerquois	France	World War I: The schooner was sunk in the Atlantic Ocean 45 nautical miles (83 km) off the Blasket Islands by SM U-86 ( Imperial German Navy).[67]
Ebenezer	Denmark	World War I: The three-masted schooner was shelled and sunk in the Atlantic Ocean 10 nautical miles (19 km) south west of St. Kilda, United Kingdom (57°58′N 8°20′W / 57.967°N 8.333°W / 57.967; -8.333) by SM U-57 ( Imperial German Navy). Her crew survived.[68][69]
Ernest Legouve	France	World War I: The barque was torpedoed and sunk in the English Channel 5 nautical miles (9.3 km) west by south of St. Catherine's Point, Isle of Wight, United Kingdom (50°30′N 1°26′W / 50.500°N 1.433°W / 50.500; -1.433) by SM UB-32 ( Imperial German Navy) with the loss of twenty of her 24 crew.[70]
Gower Coast	United Kingdom	World War I: The coaster struck a mine placed by SM UC-71 ( Imperial German Navy) and sank in the English Channel off Le Tréport, Seine-Inférieure, France with the loss of all fifteen crew.[71]
Marie Celine	France	World War I: The schooner was sunk in the Atlantic Ocean south west of Ireland by SM U-86 ( Imperial German Navy).[72]
N. J. Fjord	Denmark	World War I: The cargo ship was scuttled in the North Sea 40 nautical miles (74 km) east north east of Coquet Island, Northumberland, United Kingdom. Her crew survived.[73]
Roland	France	World War I: The sailing vessel was sunk in the Atlantic Ocean 80 nautical miles (150 km) west north west of the Blasket Islands by SM U-59 ( Imperial German Navy).[74]
San Fulgencio	Spain	World War I: The cargo ship was sunk in the Bay of Biscay off Sables d'Olonne, Vendée, France by SM UC-71 ( Imperial German Navy).[75]
Siberier	Belgium	World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean 40 nautical miles (74 km) west of the Fastnet Rock (52°18′N 11°40′W / 52.300°N 11.667°W / 52.300; -11.667 (SS Siberier)) by SM U-86 ( Imperial German Navy). She was taken in tow but sank the next day.[76]
Solstad	Norway	World War I: The cargo ship was sunk in the Ionian Sea north west of Cythera, Greece (36°02′N 20°50′E / 36.033°N 20.833°E / 36.033; 20.833) by SM U-63 ( Imperial German Navy). Her crew survived.[77]
Vilja	Norway	World War I: The cargo ship was torpedoed and sunk in the Atlantic OCean 135 nautical miles (250 km) west of the Fastnet Rock (52°12′N 13°07′W / 52.200°N 13.117°W / 52.200; -13.117) by SM U-55 ( Imperial German Navy) with the loss of a crew member.[78]

6 April

List of shipwrecks: 6 April 1917

Ship	State	Description
Cybele	France	World War I: The sailing vessel was sunk in the Mediterranean Sea of Cabo de Gata, Almeria, Spain by SM UC-25 ( Imperial German Navy).[79]
Henry Clay	United States	The schooner barge sank in 15 fathoms (90 ft; 27 m) of water 9 miles (14 km) west south west of the Montauk Point Light after springing a leak in a gale, a total loss. The crew was rescued by her tug Germantown ( United States).[80][81]
John H. Ryerson	United States	The barge went ashore on Kelsey Point near Duck Island, Connecticut. Refloated and returned to service.[82]
Kongshaug	Norway	World War I: The coaster was captured and scuttled in the North Sea 45 nautical miles (83 km) north of Kinnaird Head, Aberdeenshire, United Kingdom by SM UB-35 ( Imperial German Navy). Her crew were rescued by a Scottish fishing vessel.[83]
La Tour d'Auvergne	France	World War I: The brig was shelled and set on fire in the Atlantic Ocean 15 nautical miles (28 km) south south east of the Longships Lighthouse by SM UB-39 ( Imperial German Navy). She was towed to Mullion, Cornwall, United Kingdom but was declared a constructive total loss. Her crew survived.[84]
Lord Kitchener	United Kingdom	World War I: The trawler was scuttled in the North Sea 45 nautical miles (83 km) north by east of Kinnaird Head by SM UB-35 ( Imperial German Navy). Her crew survived.[42][85]
Marion	Norway	World War I: The barque was shelled and sunk in the Atlantic Ocean (52°10′N 13°46′W / 52.167°N 13.767°W / 52.167; -13.767) by SM U-60 ( Imperial German Navy) with the loss of a crew member.[86]
Narberth Castle	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 30 nautical miles (56 km) north north west of Dennis Head Old Beacon, North Ronaldsay, Orkney Islands by SM UC-27 ( Imperial German Navy). Her crew survived.[87]
Nestor	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 20 nautical miles (37 km) north west by north of North Ronaldsay by SM UC-27 ( Imperial German Navy). Her crew survived.[88]
Perce Neige	France	World War I: The schooner was sunk in the Atlantic Ocean off Lands End, Cornwall, United Kingdom by SM UB-39 ( Imperial German Navy).[89]
Powhatan	United Kingdom	World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 25 nautical miles (46 km) north by west of North Rona (59°32′N 6°30′W / 59.533°N 6.500°W / 59.533; -6.500) by SM U-66 ( Imperial German Navy) with the loss of 36 crew. Her captain was taken as a prisoner of war.[11][90]
Presto	United Kingdom	World War I: The cargo ship struck a mine placed by SM UC-40 ( Imperial German Navy) and sank in the North Sea 4 nautical miles (7.4 km) east of Roker Point, Sunderland, County Durham (54°57′N 1°16′W / 54.950°N 1.267°W / 54.950; -1.267) with the loss of six of her crew.[91]
Rahmanich	Egypt	World War I: The ship was sunk in the Mediterranean Sea off the coast of Egypt by SM UC-34 ( Imperial German Navy).[92]
Recto	United Kingdom	World War I: The trawler was scuttled in the North Sea 45 nautical miles (83 km) north by east of Kinnaird Head by SM UB-35 ( Imperial German Navy). Her crew survived.[42][93]
Rosalind	United Kingdom	World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) west north west of the Fastnet Rock (51°39′N 14°20′W / 51.650°N 14.333°W / 51.650; -14.333) by SM U-86 ( Imperial German Navy) with the loss of two of her crew.[94]
Sand Flea	United States	The dredge sank in the harbor at Bridgeport, Connecticut.[82]
Spithead	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 12 nautical miles (22 km) north by west of the Damietta Lighthouse, Egypt (31°44′N 31°46′E / 31.733°N 31.767°E / 31.733; 31.767) by SM UC-34 ( Imperial German Navy) with the loss of a crew member.[11][95]
HMT Strathrannoch	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-31 ( Imperial German Navy) and sank in the North Sea off St. Abb's Head, Berwickshire (55°55′N 2°07′W / 55.917°N 2.117°W / 55.917; -2.117) with the loss of all thirteen crew.[96]
Tell City	United States	The steamer sank after being forced ashore at Little Hocking, Ohio.[97]
Thelma	Norway	World War I: The cargo ship struck a mine and sank in the English Channel 4 nautical miles (7.4 km) south by west of the Owers Lightship ( United Kingdom) by SM UC-65 ( Imperial German Navy) with the loss of a crew member.[98]
Vine Branch	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean south west of Ireland (49°45′N 14°08′W / 49.750°N 14.133°W / 49.750; -14.133) by SM U-55 ( Imperial German Navy) with the loss of all 44 crew.[99]

7 April

List of shipwrecks: 7 April 1917

Ship	State	Description
Caminha	Portugal	World War I: The cargo ship was sunk in the Bay of Biscay 30 nautical miles (56 km) south south west of Cape Ferrat (45°22′N 2°48′W / 45.367°N 2.800°W / 45.367; -2.800 (SS Caminha)) by gunfire from SM UC-71 ( Imperial German Navy).[100]
SMS Cormoran	Imperial German Navy	World War I: The merchant raider was scuttled at Guam with the loss of nine crew.
Edwin R. Hunt	United States	World War I: The schooner was shelled and sunk in the Mediterranean Sea 40 nautical miles (74 km) off Cabo de Gata, Almeria, Spain by SM UC-25 ( Imperial German Navy). Her crew survived.[101][48]
Emily S. Baymore	United States	The barge went on the rocks at Eastern Point, New London, Connecticut.[82]
Fiskaa	Norway	World War I: The barque was sunk in the Atlantic Ocean 10 nautical miles (19 km) off St. Kilda, United Kingdom by SM U-46 ( Imperial German Navy). Her crew survived.[102]
HMS Jason	Royal Navy	World War I: The torpedo boat struck a mine placed by SM U-78 ( Imperial German Navy) and sank off Coll, Inner Hebrides (56°35′45″N 6°28′15″W / 56.59583°N 6.47083°W / 56.59583; -6.47083) with the loss of 25 crew.[103]
Maplewood	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 47 nautical miles (87 km) south west of Cape Sperone, Sardinia, Italy by SM U-35 ( Imperial German Navy). Her crew survived.[11][104]
Salmo	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 210 nautical miles (390 km) north west of the Fastnet Rock (52°30′N 14°40′W / 52.500°N 14.667°W / 52.500; -14.667) by SM U-60 ( Imperial German Navy) with the loss of two crew.[105]
Scow No. 35	United States	The scow sank in White Head Pass, Portland, Maine.[82]
Seward	United States	World War I: The cargo ship was shelled, or torpedoed, and sunk, or captured and scuttled with explosives, depending on source, in the Mediterranean Sea 22 nautical miles (41 km) north east of Begur, Spain (42°42′N 3°41′E / 42.700°N 3.683°E / 42.700; 3.683) by SM U-52 ( Imperial German Navy). Her crew survived.[106][48][107]
Trefusis	United Kingdom	World War I: The collier was scuttled in the Mediterranean Sea 30 nautical miles (56 km) south east of Cape Pula, Sardinia (38°38′N 9°25′E / 38.633°N 9.417°E / 38.633; 9.417) by SM U-65 ( Imperial German Navy). Her crew survived, but three survivors were taken as prisoners of war.[17][108]

8 April

List of shipwrecks: 8 April 1917

Ship	State	Description
Alba	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea 3 nautical miles (5.6 km) off Garraf, Spain (41°05′N 1°53′E / 41.083°N 1.883°E / 41.083; 1.883) by SM U-52 ( Imperial German Navy).[109]
SMS G88	Imperial German Navy	World War I: The G85-class torpedo boat was torpedoed and sunk in the North Sea by a Royal Navy Coastal Motor Boat.[110]
Geilan Bahri	United Kingdom	World War I: The sailing vessel was scuttled in the Mediterranean Sea 54 nautical miles (100 km) off Alexandria, Egypt by SM UC-34 ( Imperial German Navy).[11][111]
Livatho	Greece	World War I: The cargo ship was sunk in the Mediterranean Sea north west of Crete (36°24′N 20°56′E / 36.400°N 20.933°E / 36.400; 20.933) by SM UB-47 ( Imperial German Navy). Her crew survived.[112]
Lucia	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off Cape Pula, Sardinia by SM U-65 ( Imperial German Navy).[113]
Nestos	Greece	World War I: The cargo ship was sunk in the Mediterranean Sea 50 nautical miles (93 km) west south west of Sapientza (36°27′N 20°59′E / 36.450°N 20.983°E / 36.450; 20.983) by SM UB-47 ( Imperial German Navy).[114]
Papa Gian Battista	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off Cape Pula, Sardinia by SM U-65 ( Imperial German Navy).[115]
Petridge	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) west north west of Ouessant, Finistère, France (48°14′N 10°10′W / 48.233°N 10.167°W / 48.233; -10.167) by SM U-55 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war.[116]
Torrington	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) south west of the Isles of Scilly by SM U-55 ( Imperial German Navy) with the loss of 34 crew. Her captain was taken as a prisoner of war.[117]
Umvoti	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) west north west of Ouessant (48°48′N 10°15′W / 48.800°N 10.250°W / 48.800; -10.250) by SM U-55 ( Imperial German Navy) with the loss of four crew. Two survivors were taken as prisoners of war.[11][118]

9 April

List of shipwrecks: 9 April 1917

Ship	State	Description
Avon	United Kingdom	World War I: The passenger ship struck a mine placed by SM UC-7 ( Imperial German Navy) and sank in the Thames Estuary 2.5 nautical miles (4.6 km) south east by south of the Tongue Lightship ( United Kingdom) (51°29′00″N 1°26′30″E / 51.48333°N 1.44167°E / 51.48333; 1.44167) with the loss of two lives.[119]
Cairnie	United Kingdom	The coaster dragged her anchors, collided with another vessel and sank. Her crew were rescued.[120]
Concord	United States	The steamer went ashore on Hog Island, Massachusetts.[82]
Esterel	France	World War I: The cargo ship was sunk in the Mediterranean Sea off Port-Vendres, Pyrénées-Orientales (42°39′N 3°30′E / 42.650°N 3.500°E / 42.650; 3.500) by SM U-52 ( Imperial German Navy).[121]
Fremad I	Norway	World War I: The barque was sunk in the North Sea 200 nautical miles (370 km) off Lindesnes, Vest-Agder (58°47′N 0°52′E / 58.783°N 0.867°E / 58.783; 0.867) by SM U-59 ( Imperial German Navy). Her crew survived.[122]
Ganslei	Russia	World War I: The cargo ship was sunk in Kola Bay (69°19′N 33°31′E / 69.317°N 33.517°E / 69.317; 33.517) by SM U-75 ( Imperial German Navy).[123]
Kittiwake	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the North Sea 25 nautical miles (46 km) north west of the Maas Lightship ( Netherlands) (52°15′N 3°18′E / 52.250°N 3.300°E / 52.250; 3.300) by SM UB-30 ( Imperial German Navy) with the loss of seven crew.[124]
HMT Ortho	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-14 ( Imperial German Navy) and sank in the North Sea off Lowestoft, Suffolk (52°23′00″N 1°52′30″E / 52.38333°N 1.87500°E / 52.38333; 1.87500) with the loss of a crew member.[125]
Saint Maudez	France	World War I: The sailing vessel was sunk in the English Channel 10 nautical miles (19 km) north north west of Fécamp, Seine-Inférieure by SM UB-39 ( Imperial German Navy).[126]
Themistoclis	Greece	World War I: The cargo ship was sunk in the Atlantic Ocean 100 nautical miles (190 km) off Pointe Saint-Mathieu, Finistère, France by SM UC-71 ( Imperial German Navy).[127]
Valhall	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 30 nautical miles (56 km) north of the Pierres Noires, Finistère by SM UC-71 ( Imperial German Navy). Her crew survived.[128]

10 April

List of shipwrecks: 10 April 1917

Ship	State	Description
Abd Razid	Tunisia	World War I: The sailing vessel was sunk in the Mediterranean Sea off Tripoli, Libya by SM UC-20 ( Imperial German Navy).[129]
Dalton	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cape Matapan, Greece (36°00′N 22°40′E / 36.000°N 22.667°E / 36.000; 22.667) by SM U-28 ( Austro-Hungarian Navy). Her crew survived.[11][130]
HMS P26	Royal Navy	World War I: The P-class sloop struck a mine placed by SM UC-26 ( Imperial German Navy) and sank in the English Channel off Le Havre, Seine-Inférieure, France with the loss of nineteen of her 59 crew. Survivors were rescued by HMS P19 ( Royal Navy[131][132]
Pluto	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the North Sea 32 nautical miles (59 km) south east by east of Lowestoft, Suffolk (52°19′N 2°34′E / 52.317°N 2.567°E / 52.317; 2.567) by SM UB-20 ( Imperial German Navy). Her crew survived.[11][133]
Porto di Rodi	Italy	World War I: The cargo ship was sunk in the Ionian Sea 37°53′N 18°02′E / 37.883°N 18.033°E / 37.883; 18.033) SM U-32 ( Imperial German Navy) with the loss of 31 crew.[134]
Ranvik	Norway	World War I: The cargo ship was sunk in the Atlantic Ocean 45 nautical miles (83 km) west south west of Ouessant, Finistère, France by SM UC-71 ( Imperial German Navy). Her crew survived.[135]
HMHS Salta	Royal Navy	( Red Cross): World War I: The hospital ship struck a mine and sank at Le Havre with the loss of 130 of the 205 people on board.

11 April

List of shipwrecks: 11 April 1917

Ship	State	Description
HMT Amy	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-26 ( Imperial German Navy) and sank in the English Channel off Le Havre, Seine Maritime, France with the loss of nine of her crew.[136]
Ansgar	Denmark	World War I: The barquentine was set afire and sunk in the Mediterranean Sea off Cape San Antonio, Spain (39°06′N 0°30′E / 39.100°N 0.500°E / 39.100; 0.500) by SM U-52 ( Imperial German Navy). Her crew survived.[137]
Candia	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea off Zuwara, Libya by SM UC-20 ( Imperial German Navy).[138]
Cyfarthfa	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 32 nautical miles (59 km) west south west of Antikythera, Greece (35°29′N 22°30′E / 35.483°N 22.500°E / 35.483; 22.500) by SM UB-47 ( Imperial German Navy). Her crew survived.[11][139]
Duchess of Cornwall	United Kingdom	World War I: The cargo ship struck a mine placed by SM UC-26 ( Imperial German Navy) and sank in the English Channel 5 nautical miles (9.3 km) north of Cape Barfleur, Manche, France with the loss of 23 of her crew.[140]
Imperial Transport	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 140 nautical miles (260 km) north west by north of Alexandria, Egypt by SM UC-34 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[11][141]
Miss Morris	United Kingdom	World War I: The three-masted schooner was scuttled in the Mediterranean Sea 20 nautical miles (37 km) south east of Garrucha, Andalusia, Spain (36°57′N 1°50′W / 36.950°N 1.833°W / 36.950; -1.833) by SM U-35 ( Imperial German Navy). Her crew survived.[142]
Nancy	Denmark	World War I: The cargo ship was torpedoed and sunk in the North Sea 42 nautical miles (78 km) off the Hellisøy Lighthouse, Hordaland, Norway by SM U-30 ( Imperial German Navy) with the loss of three crew.[143]
Precedent	United Kingdom	World War I: The fishing smack was scuttled in the English Channel 12 nautical miles (22 km) east south east of Berry Head, Devon by SM UB-38 ( Imperial German Navy). Her crew survived.[42][144]
Quaggy	United Kingdom	World War I: The coaster struck a mine placed by SM UC-31 ( Imperial German Navy) and sank in the North Sea 3 nautical miles (5.6 km) east of Robin Hood's Bay, Yorkshire with the loss of two of her crew.[145]
Sarvsfos	Norway	World War I: The barque was sunk in the North Sea 80 nautical miles (150 km) south east of Kirkwall, Orkney Islands (58°33′N 0°00′E / 58.550°N 0.000°E / 58.550; 0.000) by SM U-50 ( Imperial German Navy). Her crew survived.[146]
Saxo	Denmark	World War I: The coaster was sunk in the North Sea 42 nautical miles (78 km) off the Hellisøy Lighthouse by SM U-30 ( Imperial German Navy). Her crew survived.[147]
Star	Norway	World War I: The coaster was sunk in the North Sea 68 nautical miles (126 km) off the coast of Fife, United Kingdom by SM U-30 ( Imperial German Navy). Her crew survived.[148]
Sylfiden	Norway	World War I: The barque was sunk in the Barents Sea 50 nautical miles (93 km) north by west of Holmengrå, Finnmark by SM U-30 ( Imperial German Navy). Her crew survived.[149]
HMS Thrush	Royal Navy	The salvage ship was wrecked off Glenarm, Ireland.
Tremorvah	United Kingdom	World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 70 nautical miles (130 km) north north west of Cape Bougaroni, Algeria by SM U-65 ( Imperial German Navy). Her crew survived, but four of them were taken as prisoners of war.[11][150]

12 April

List of shipwrecks: 12 April 1917

Ship	State	Description
Angela M.	Italy	World War I: The three-masted schooner was scuttled in the Mediterranean Sea north west of Cape Bougaroni, Algeria by SM U-65 ( Imperial German Navy).[151]
Caliban	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 45 nautical miles (83 km) north east by east of Rattray Head, Aberdeenshire by SM UC-76 ( Imperial German Navy). Her crew survived.[42][152]
Chinkiang	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 30 nautical miles (56 km) north east by east of Buchan Ness, Aberdeenshire by SM UC-76 ( Imperial German Navy). Her crew survived.[42][153]
Crown Prince	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 45 nautical miles (83 km) north east by east of Girdle Ness by SM UC-76 ( Imperial German Navy). Her crew survived.[154]
Dina Henderika	Netherlands	World War I: The sailing vessel was scuttled in the North Sea 30 nautical miles (56 km) east north east of Hartlepool, County Durham, United Kingdom by SM UC-30 ( Imperial German Navy).[155]
Edelweiss	France	World War I: The sailing vessel was shelled and sunk in the English Channel off Cherbourg, Seine-Inférieure by SM UC-71 ( Imperial German Navy).[156]
Equerry	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 35 nautical miles (65 km) north east of Kincaid Head by SM UC-76 ( Imperial German Navy). Her crew survived.[157]
Ernst Sophie	Russia	World War I: The sailing vessel was scuttled in the Atlantic Ocean south west of Ireland (51°05′N 11°58′W / 51.083°N 11.967°W / 51.083; -11.967) by SM UC-27 ( Imperial German Navy).[158]
Fife Ness	United Kingdom	World War I: The fishing vessel was shelled and sunk in the North Sea 23 nautical miles (43 km) east north east of Fraserburgh, Aberdeenshire by SM UC-76 ( Imperial German Navy). Her crew survived.[42][159]
Glencliffe	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 2.5 nautical miles (4.6 km) off Tabarca Island, Alicante, Spain (38°07′N 0°22′W / 38.117°N 0.367°W / 38.117; -0.367) by SM U-52 ( Imperial German Navy) with the loss of a crew member. Three survivors were taken as prisoners of war.[11][160]
India	Greece	World War I: The cargo ship was sunk in the Mediterranean Sea east of Gibraltar by SM U-35 ( Imperial German Navy).[161]
Kildale	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 40 nautical miles (74 km) east of Pantelleria, Italy (36°44′N 12°32′E / 36.733°N 12.533°E / 36.733; 12.533) SM U-32 ( Imperial German Navy) with the loss of a crew member.[162]
Kolaastind	Norway	World War I: The cargo ship was sunk in the North Sea (60°14′N 2°42′E / 60.233°N 2.700°E / 60.233; 2.700) by SM U-30 ( Imperial German Navy) with the loss of four crew.[163]
Largo Bay	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 30 nautical miles (56 km) north east by east of Buchan Ness by SM UC-76 ( Imperial German Navy). Her crew survived.[164]
Lilian	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 45 nautical miles (83 km) north east by east of Girdle Ness by SM UC-76 ( Imperial German Navy). Her crew survived.[165]
Lismore	United Kingdom	World War I: The passenger ship was torpedoed and sunk in the English Channel 22 nautical miles (41 km) north west by north of Le Havre, Seine-Inférieure, France (49°48′N 0°18′W / 49.800°N 0.300°W / 49.800; -0.300) by SM UB-38 ( Imperial German Navy) with the loss of five lives.[11][166]
Neptunus	Netherlands	World War I: The sailing vessel was sunk in the North Sea 20 nautical miles (37 km) east north east of Hartlepool by SM UC-31 ( Imperial German Navy).[167]
Niritos	Greece	World War I: The cargo ship was sunk in the Mediterranean Sea 5 nautical miles (9.3 km) off Augusta, Sicily, Italy (37°13′N 15°20′E / 37.217°N 15.333°E / 37.217; 15.333) by SM U-27 ( Austro-Hungarian Navy).[168]
Osprey	United Kingdom	World War I: The trawler was shelled and sunk in the North Sea 45 nautical miles (83 km) north east by east of Girdle Ness by SM UC-76 ( Imperial German Navy). Her crew survived.[169]
Toro	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) west north west of Ouessant, Finistère, France (48°30′N 10°00′W / 48.500°N 10.000°W / 48.500; -10.000) by SM U-55 ( Imperial German Navy) with the loss of fourteen crew. Two survivors were taken as prisoners of war.[11][170]
Union	Denmark	World War I: The schooner was sunk in the North Sea 18 to 20 nautical miles (33 to 37 km) east of the Souter Lighthouse, County Durham by SM UC-31 ( Imperial German Navy). Her crew survived.[171]
Voorwarts	Netherlands	World War I: The schooner was sunk in the North Sea 20 nautical miles (37 km) east north east of Hartlepool by SM UC-30 ( Imperial German Navy).[172]

13 April

List of shipwrecks: 13 April 1917

Ship	State	Description
Argyll	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 110 nautical miles (200 km) west of the Bishop Rock, Isles of Scilly (49°23′N 9°07′W / 49.383°N 9.117°W / 49.383; -9.117) by SM U-84 ( Imperial German Navy) with the loss of 22 of her crew.[11][173]
Bandon	United Kingdom	World War I: The cargo ship struck a mine placed by SM UC-44 ( Imperial German Navy) and sank in the Atlantic Ocean 2.5 nautical miles (4.6 km) south west of Mine Head, Waterford (51°57′N 7°35′W / 51.950°N 7.583°W / 51.950; -7.583) with the loss of 28 of her crew.[174]
Bokn	Norway	World War I: The coaster was sunk in the North Sea 95 nautical miles (176 km) off the Hellisøy Lighthouse, Hordaland (60°04′N 0°45′E / 60.067°N 0.750°E / 60.067; 0.750) by SM U-30 ( Imperial German Navy). Her crew survived.[175]
Frixos	Russian Empire	World War I: The cargo ship was torpedoed and sunk in the North Sea 60 nautical miles (110 km) east of the Shetland Islands, United Kingdom (60°04′N 0°45′E / 60.067°N 0.750°E / 60.067; 0.750) by SM U-30 ( Imperial German Navy).[176]
Gama	Norway	World War I: The coaster was sunk in the North Sea (60°24′N 1°15′E / 60.400°N 1.250°E / 60.400; 1.250) by SM U-30 ( Imperial German Navy). Her crew survived.[177]
Gambetta	France	World War I: The sailing vessel was sunk in the Bay of Biscay off the Île d'Yeu, Finistère by SM UC-26 ( Imperial German Navy).[178]
Giuseppe Accame	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea 40 nautical miles (74 km) west of Cape Spartel, Morocco by SM U-35 ( Imperial German Navy).[179]
Glenlora	Norway	World War I: The barque was sunk in the North Sea (60°36′N 1°53′E / 60.600°N 1.883°E / 60.600; 1.883) by SM U-30 ( Imperial German Navy). Her crew survived.[180]
Kariba	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 260 nautical miles (480 km) west north west of Ouessant, Finistère, France (48°30′N 11°28′W / 48.500°N 11.467°W / 48.500; -11.467) by SM UC-27 ( Imperial German Navy) with the loss of thirteen of her crew.[11][181]
Maggie Todd	United States	The schooner went ashore at Wood End, Provincetown, Massachusetts. Refloated and returned to service.[82]
Maria	United Kingdom	World War I: The schooner was scuttled in the English Channel 25 nautical miles (46 km) south west of Portland Bill, Dorset by SM UB-38 ( Imperial German Navy). Her crew survived.[11][182]
HMML 534	Royal Navy	The motor launch was lost in the Mediterranean Sea on this date.[17]
Odysseus	Greece	World War I: The cargo ship was sunk in the Mediterranean Sea 30 nautical miles (56 km) west of Cape Spartel by SM U-35 ( Imperial German Navy).[183]
HMT Pitstruan	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-76 ( Imperial German Navy) and sank in the North Sea 3 nautical miles (5.6 km) south east of the Noss Head Lighthouse, Shetland Islands with the loss of eleven of her crew.[184]
Stork	United Kingdom	World War I: The trawler was scuttled in the North Sea 20 nautical miles (37 km) east of St Abb's Head, Berwickshire by SM UC-41 ( Imperial German Navy). Her crew survived.[42][185]
Strathcona	Canada	World War I: The cargo ship was scuttled in the Atlantic Ocean 145 nautical miles (269 km) west north west of North Ronaldsay, Orkney Islands, United Kingdom (59°35′N 5°49′W / 59.583°N 5.817°W / 59.583; -5.817) by SM U-78 ( Imperial German Navy) with the loss of nine crew. Three survivors were taken as prisoners of war.[11][186]
Stromboli	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea 50 nautical miles (93 km) west of Cape Spartel by SM U-35 ( Imperial German Navy).[187]
W. F. Babcock	United States	The schooner barge went ashore on Monomoy Point, Massachusetts. Refloated and returned to service.[82][188]
Zara	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the North Sea 90 nautical miles (170 km) off the Hellisøy Lighthouse (60°08′N 1°52′E / 60.133°N 1.867°E / 60.133; 1.867) by SM U-30 ( Imperial German Navy) with the loss of 27 lives.[189]

14 April

List of shipwrecks: 14 April 1917

Ship	State	Description
Andromach	United Kingdom	World War I: The trawler was scuttled in the Atlantic Ocean west of the Shetland Islands by SM U-78 ( Imperial German Navy). Her captain was taken as a prisoner of war. The other eleven crew took to the lifeboat but were not found.[190]
Cinque Ottobre	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of Tunisia by SM UC-20 ( Imperial German Navy).[191]
Fjeldli	Norway	World War I: The coaster was sunk in the North Sea 76 nautical miles (141 km) west by north of the Marstein Lighthouse, Hordaland (60°02′N 2°10′E / 60.033°N 2.167°E / 60.033; 2.167) by SM U-30 ( Imperial German Navy). Her crew survived.[192]
Gange	French Navy	World War I: The troopship struck a mine and sank in the Mediterranean Sea 33 nautical miles (61 km) north east of Cape Serrat, Algeria (37°24′N 9°50′E / 37.400°N 9.833°E / 37.400; 9.833) by SM UC-37 ( Imperial German Navy) with the loss of one life.[193]
Hermione	United Kingdom	World War I: The cargo ship struck a mine placed by SM UC-33 ( Imperial German Navy) and was damaged in the Irish Sea off the Coningbeg Lightship ( United Kingdom). She was beached in Dunmore Bay where she was declared a constructive total loss. Subsequently scrapped in situ.[194]
HMT Orcades	Royal Navy	World War I: The naval trawler struck a mine placed by SM UC-7 ( Imperial German Navy) and sank in the North Sea off Grimsby with the loss of six of her crew.[195]
Patagonier	United Kingdom	World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 135 nautical miles (250 km)) west of Gibraltar (36°00′N 9°00′W / 36.000°N 9.000°W / 36.000; -9.000) by SM U-35 ( Imperial German Navy). Her crew survived.[11][196]
Progresso	Italy	World War I: The tug was sunk in the Mediterranean Sea off the coast of Tunisia by SM UC-20 ( Imperial German Navy).[197]
Spray	United Kingdom	World War I: The cargo ship was sunk in the North Sea 3.5 nautical miles (6.5 km) north east of the mouth of the River Tyne by SM UC-30 ( Imperial German Navy). Her crew survived.[198]
Tom	Spain	World War I: The cargo ship was sunk in the Bay of Biscay 12 nautical miles (22 km) off Hourtin, Gironde, France (45°05′N 1°30′W / 45.083°N 1.500°W / 45.083; -1.500) by SM UC-26 ( Imperial German Navy). Her crew survived.[199]
Tres Macs	Portugal	World War I: The auxiliary sailing vessel was shelled and sunk in the Mediterranean Sea (36°39′N 7°22′W / 36.650°N 7.367°W / 36.650; -7.367) by SM U-52 ( Imperial German Navy).[200]
Venus	Norway	World War I: The coaster struck a mine placed by SM UC-50 ( Imperial German Navy) and sank in the North Sea 5 nautical miles (9.3 km) off Berwick-upon-Tweed, Northumberland, United Kingdom with the loss of fourteen of her crew.[201]

15 April

List of shipwrecks: 15 April 1917

Ship	State	Description
A-5	United States Navy	Sunk at Cavite Navy Yard in the Philippines due to a ballast tank leak. Raised and returned to service.[202]
Alert	United Kingdom	World War I: The coaster struck a mine and sank in the English Channel off Dover, Kent.[11]
Alessio Cocco	Italy	World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of Tunisia by SM UC-20 ( Imperial German Navy).[203]
Arcadian	United Kingdom	SS Arcadian World War I: The troopship was torpedoed and sunk in the Sea of Crete 26 nautical miles (48 km) northeast of Milos, Greece (36°50′N 24°50′E / 36.833°N 24.833°E / 36.833; 24.833) by SM UC-74 ( Imperial German Navy) with the loss of 277 lives.[11][204]
Astræa	Denmark	World War I: The barquentine was set afire and sunk in the Atlantic Ocean south west of the Isles of Scilly, United Kingdom (49°00′N 10°30′W / 49.000°N 10.500°W / 49.000; -10.500) by SM U-55 ( Imperial German Navy) with the loss of seven crew.[205]
Brothertoft	United Kingdom	World War I: The trawler was sunk in the North Sea (approximately 55°50′N 1°30′E / 55.833°N 1.500°E / 55.833; 1.500) by SM UC-30 ( Imperial German Navy).[206]
Cameronia	United Kingdom	World War I: The troopship was torpedoed and sunk in the Mediterranean Sea 150 nautical miles (280 km) east of Malta (35°50′N 17°32′E / 35.833°N 17.533°E / 35.833; 17.533) by SM U-33 ( Imperial German Navy) with the loss of 140-210 of the 2,650-plus people on board. Survivors were rescued by HMS Nemesis and HMS Rifleman (both  Royal Navy).
Dalmatian	United Kingdom	World War I: The trawler was scuttled in the North Sea by SM UC-44 ( Imperial German Navy). Her nine crew took to the lifeboats but did not survive.[207]
Fram	Denmark	World War I: The schooner was shelled and sunk in the North Sea (56°35′N 2°45′W / 56.583°N 2.750°W / 56.583; -2.750) by SM U-93 ( Imperial German Navy).[208]
Gretaston	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean (43°08′N 11°32′W / 43.133°N 11.533°W / 43.133; -11.533) by SM UC-27 ( Imperial German Navy) with the loss of all 29 crew.[209]
Heikina	Netherlands	World War I: The sailing vessel was sunk in the North Sea by SM UC-44 ( Imperial German Navy). Her crew took to the lifeboats but did not survive.[210]
Mashobra	United Kingdom	World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea 140 nautical miles (260 km) south west of Cape Matapan, Greece (35°34′N 20°40′E / 35.567°N 20.667°E / 35.567; 20.667) by SM U-28 ( Austro-Hungarian Navy) with the loss of eight lives. Her captain was taken as a prisoner of war.[11][211]
Møhlenpris	Norway	World War I: The coaster was sunk in the English Channel 15 nautical miles (28 km) south west of Beachy Head, Sussex, United Kingdom (50°38′N 0°15′W / 50.633°N 0.250°W / 50.633; -0.250) by SM UB-40 ( Imperial German Navy). Her crew survived.[212]
Panaghi Drakatos	Greece	World War I: The cargo ship was sunk in the Atlantic Ocean 26 nautical miles (48 km) off Cape Santa Maria, Portugal by SM U-35 ( Imperial German Navy). Her crew survived.[213]
Paris	Norway	World War I: The cargo ship was sunk in the North Sea 100 nautical miles (190 km) west of Greipengen by SM U-30 ( Imperial German Navy). Her crew survived.[214]
Sutterton	United Kingdom	World War I: The trawler was scuttled in the North Sea 65 nautical miles (120 km) east south east of St Abb's Head, Berwickshire (55°45′N 0°15′W / 55.750°N 0.250°W / 55.750; -0.250) by SM UC-44 ( Imperial German Navy) with the loss of a crew member.[42][215]
Tusnastabb	Norway	World War I: The coaster struck a mine and sank in the English Channel off Cap Gris Nez, Pas-de-Calais, France (50°54′N 1°34′E / 50.900°N 1.567°E / 50.900; 1.567). Her crew survived.[216]

16 April

List of shipwrecks: 16 April 1917

Ship	State	Description
Amanda	Sweden	World War I: The brig was scuttled in the North Sea[217] (56°27′N 3°00′E / 56.450°N 3.000°E / 56.450; 3.000) by SM UC-51 ( Imperial German Navy). Her crew survived.[218]
Anne	Denmark	World War I: The three-masted schooner was scuttled in the Atlantic Ocean west of Ireland (51°45′N 17°20′W / 51.750°N 17.333°W / 51.750; -17.333) by SM U-43 ( Imperial German Navy). Her crew survived.[219]
HMS C16	Royal Navy	The C-class submarine was rammed and sunk at Harwich, Essex by HMS Melampus ( Royal Navy) with the loss of all sixteen crew. She was subsequently salvaged, repaired and returned to service.
Cairndhu	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the English Channel 25 nautical miles (46 km) west of Beachy Head, Sussex by SM UB-40 ( Imperial German Navy) with the loss of eleven of her crew.[11][220]
Crios	Greece	World War I: The cargo ship was scuttled in the Atlantic Ocean off Cape Espichel, Portugal (38°20′N 9°12′W / 38.333°N 9.200°W / 38.333; -9.200) by SM U-52 ( Imperial German Navy).[221]
Eduard	United Kingdom	World War I: The three-masted schooner was scuttled in the English Channel 12 nautical miles (22 km) south west of Beachy Head (50°34′N 0°05′E / 50.567°N 0.083°E / 50.567; 0.083) by SM UC-70 ( Imperial German Navy). Her crew survived.[222]
Endymion	Russia	World War I: The sailing vessel was scuttled in the Atlantic Ocean 250 nautical miles (460 km) west of Galway, United Kingdom (52°30′N 16°20′W / 52.500°N 16.333°W / 52.500; -16.333) by SM U-43 ( Imperial German Navy).[223]
Lord Chancellor	United Kingdom	World War I: The trawler was scuttled in the North Sea 50 nautical miles (93 km) north east of the Longstone Lighthouse, Northumberland by SM UC-41 ( Imperial German Navy). Her crew survived.[42][224]
Marden	United Kingdom	World War I: The coaster was shelled and sunk in the English Channel 6 nautical miles (11 km) north west of Cap Gris Nez, Pas-de-Calais, France by SM UB-36 ( Imperial German Navy) with the loss of a crew member.[225]
Polycarp	Norway	World War I: The sailing vessel was sunk in the North Sea (56°23′N 2°52′E / 56.383°N 2.867°E / 56.383; 2.867) by SM UC-51 ( Imperial German Navy). Her crew survived.[226]
Queen Mary	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) north west by north of the Fastnet Rock (51°48′N 14°52′W / 51.800°N 14.867°W / 51.800; -14.867) by SM U-60 ( Imperial German Navy) with the loss of nine crew.[11][227]
Rochester Castle	United Kingdom	World War I: The ketch was shelled and sunk in the English Channel 5 nautical miles (9.3 km) west south west of Cap Gris Nez by SM UB-36 ( Imperial German Navy). Her crew survived.[228]
Rosetta	Egypt	World War I: The sailing vessel was sunk in the Mediterranean Sea off Gaza by SM UB-42 ( Imperial German Navy).[229]
Sagres	Portugal	World War I: The cargo ship struck a mine and sank in the Mediterranean Sea off Cap Blanc, Tunisia.[230]
Sea Products Co. No. 1	United States	The barge sank in a storm with high winds and high seas off the coast of California half way between Point Dume and San Pedro, California, a total loss.[80]
Smeul	Royal Romanian Navy	World War I: The Nǎluca-class torpedo boat was sunk by Ottoman mines laid by the cruiser Midilli ( Ottoman Navy) in the Danube River Estuary.[231][232]
Sontay	France	World War I: The passenger ship was sunk in the Mediterranean Sea 100 nautical miles (190 km) south east of Malta (35°02′N 16°28′E / 35.033°N 16.467°E / 35.033; 16.467) by SM U-33 ( Imperial German Navy). Her crew survived.[233]
Towergate	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nautical miles (460 km) north west by west of the Fastnet Rock (52°10′N 16°16′W / 52.167°N 16.267°W / 52.167; -16.267) by SM U-43 ( Imperial German Navy). Her crew survived.[11][234]
Victoria	United Kingdom	World War I: The three-masted schooner was scuttled in the English Channel 30 nautical miles (56 km) south west of Beachy Head by SM UB-40 ( Imperial German Navy). Her crew survived.[11][235]

17 April

List of shipwrecks: 17 April 1917

Ship	State	Description
Aburi	United Kingdom	World War I: The Elder Dempster 3,730 GRT cargo liner was torpedoed and sunk in the Atlantic Ocean 125 nautical miles (232 km) north west of Tory Island, County Donegal (56°15′N 11°30′W / 56.250°N 11.500°W / 56.250; -11.500) by SM U-61 ( Imperial German Navy) with the loss of 25 crew.[236]
Atalanta	Sweden	World War I: The cargo ship was sunk in the North Sea with the loss of all but one crew – 16 dead.[237] The U-boat was SM U-86 ( Imperial German Navy).[238]
Bretagne	Denmark	World War I: The cargo ship was sunk in the North Sea 8 to 9 nautical miles (15 to 17 km) off Rattray Head, Aberdeenshire, United Kingdom (57°43′N 1°42′W / 57.717°N 1.700°W / 57.717; -1.700) by SM UC-45 ( Imperial German Navy). Her crew survived.[239]
Brisbane River	United Kingdom	World War I: The cargo ship was scuttled in the Atlantic Ocean 140 nautical miles (260 km) west of Gibraltar (35°30′N 8°10′W / 35.500°N 8.167°W / 35.500; -8.167) by SM U-35 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[11][240]
Cairnhill	United Kingdom	World War I: The cargo ship was scuttled in the Atlantic Ocean 160 nautical miles (300 km) south west of the Fastnet Rock (52°09′N 13°16′W / 52.150°N 13.267°W / 52.150; -13.267) by SM U-55 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war.[11][241]
Charles Goodanew	United Kingdom	World War I: The coaster was sunk in the North Sea 3.5 nautical miles (6.5 km) north north east of Rattray Head (57°39′N 1°45′W / 57.650°N 1.750°W / 57.650; -1.750) by SM UC-45 ( Imperial German Navy) with the loss of thirteen of her crew.[242]
Corfu	United Kingdom	World War I: The cargo ship was scuttled in the Atlantic Ocean 160 nautical miles (300 km) west of Gibraltar (35°14′N 8°25′W / 35.233°N 8.417°W / 35.233; -8.417) by SM U-35 ( Imperial German Navy) with the loss of three crew.[11][243]
Costante	Italy	World War I: The cargo ship was sunk in the Mediterranean Sea off the coast of Algeria (36°53′N 4°15′E / 36.883°N 4.250°E / 36.883; 4.250) by SM U-32 ( Imperial German Navy).[244]
Dantzic	United Kingdom	World War I: The schooner was scuttled in the Irish Sea 30 nautical miles (56 km) south by west of St. Ann's Head, Pembrokeshire by SM UC-47 ( Imperial German Navy). Her crew survived.[245]
Donegal	United Kingdom	(): World War I: The hospital ship was torpedoed and sunk in the English Channel 19 nautical miles (35 km) south of the Dean Lightship ( United Kingdom) (50°26′N 1°00′W / 50.433°N 1.000°W / 50.433; -1.000) by SM UC-21 ( Imperial German Navy) with the loss of 40 lives.[11][246][247]
Fernmoor	United Kingdom	World War I: The cargo ship was scuttled in the Atlantic Ocean 150 nautical miles (280 km) west of Gibraltar (35°30′N 8°18′W / 35.500°N 8.300°W / 35.500; -8.300) by SM U-35 ( Imperial German Navy). Her crew survived.[11][248]
Kish	United Kingdom	World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 160 nautical miles (300 km) north west by west of the Fastnet Rock by SM U-67 ( Imperial German Navy) with the loss of six crew.[11][249]
HMHS Lanfranc	Royal Navy	() World War I: The hospital ship was torpedoed and sunk in the English Channel 42 nautical miles (78 km) north of Le Havre, Seine-Inférieure, France (50°11′N 0°12′E / 50.183°N 0.200°E / 50.183; 0.200) by SM UB-40 ( Imperial German Navy) with the loss of 40 lives.[250]
Robert	Denmark	World War I: The cargo ship was torpedoed and sunk in the North Sea 14 nautical miles (26 km) east of Fair Isle, United Kingdom by SM UC-76 ( Imperial German Navy) with the loss of eight crew.[251]
U.S.A.	United Kingdom	World War I: The fishing vessel was scuttled in the North Sea 16 nautical miles (30 km) east north east of the Longstone Lighthouse, Northumberland (55°54′N 1°06′W / 55.900°N 1.100°W / 55.900; -1.100) by SM UC-41 ( Imperial German Navy). Her crew survived.[42][252]
William Shephard	United Kingdom	World War I: The three-masted schooner was scuttled in the Irish Sea 30 nautical miles (56 km) south by west of St. Ann's Head by SM UC-47 ( Imperial German Navy). Her crew survived.[253]