List of shipwrecks in April 1917

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

This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources.

1 April
List of shipwrecks: 1 April 1917
ShipCountryDescription
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) 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) 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) 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) 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) 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) 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) 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) by SM U-63 ( Imperial German Navy) with the loss of three crew.[11][17][18]

2 April
List of shipwrecks: 2 April 1917
ShipCountryDescription
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) 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) 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) 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) 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) 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
ShipCountryDescription
Annunziata A.  Italy World War I: The brigantine was scuttled in the Mediterranean Sea east of Sardinia (39°52′N 10°04′E) 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) 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) 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) 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) 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) 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
ShipCountryDescription
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) 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) 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) 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][51][52]
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) by SM UC-30 ( Imperial German Navy).[53]
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.[54]
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) by SM U-35 ( Imperial German Navy) with the loss of sixteen crew. Her captain was taken as a prisoner of war.[55]
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.[56]
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) by SM U-52 ( Imperial German Navy).[57]
San Giovanni Battiste  Italy World War I: The sailing vessel was sunk in the Mediterranean Sea by SM UC-37 ( Imperial German Navy).[58]
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) by SM UB-23 ( Imperial German Navy).[59]
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.[60]

5 April
List of shipwrecks: 5 April 1917
ShipCountryDescription
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).[61]
Angel Marina  Italy World War I: The sailing vessel was scuttled in the Ligurian Sea (43°16′N 7°10′E) by SM U-52 ( Imperial German Navy).[62]
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) by SM U-46 ( Imperial German Navy). Her crew survived.[63]
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.[64]
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) by SM U-65 ( Imperial German Navy) with the loss of six lives. Three survivors were taken as prisoners of war.[65]
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) by SM U-59 ( Imperial German Navy) with the loss of a crew member.[66]
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.[67]
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).[68]
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) by SM U-57 ( Imperial German Navy). Her crew survived.[69][70]
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) by SM UB-32 ( Imperial German Navy) with the loss of twenty of her 24 crew.[71]
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.[72]
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).[73]
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.[74]
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).[75]
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).[76]
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) by SM U-86 ( Imperial German Navy). She was taken in tow but sank the next day.[77]
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) by SM U-63 ( Imperial German Navy). Her crew survived.[78]
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) by SM U-55 ( Imperial German Navy) with the loss of a crew member.[79]

6 April
List of shipwrecks: 6 April 1917
ShipCountryDescription
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).[80]
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.[81]
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.[82]
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][83]
Marion  Norway World War I: The barque was shelled and sunk in the Atlantic Ocean (52°10′N 13°46′W) by SM U-60 ( Imperial German Navy) with the loss of a crew member.[84]
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.[85]
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.[86]
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).[87]
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) by SM U-66 ( Imperial German Navy) with the loss of 36 crew. Her captain was taken as a prisoner of war.[11][88]
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) with the loss of six of her crew.[89]
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).[90]
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][91]
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) by SM U-86 ( Imperial German Navy) with the loss of two of her crew.[92]
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) by SM UC-34 ( Imperial German Navy) with the loss of a crew member.[11][93]
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) with the loss of all thirteen crew.[94]
Tell City  United States The steamer sank after being forced ashore at Little Hocking, Ohio.[95]
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.[96]
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) by SM U-55 ( Imperial German Navy) with the loss of all 44 crew.[97]

7 April
List of shipwrecks: 7 April 1917
ShipCountryDescription
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) by gunfire from UC-71 ( Imperial German Navy).[98]
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.[99][100]
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.[101]
HMS Jason  Royal Navy World War I: The minesweeper 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) with the loss of 25 crew.[102]
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][103]
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) by SM U-60 ( Imperial German Navy) with the loss of two crew.[104]
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) by SM U-52 ( Imperial German Navy). Her crew survived.[105][106][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) 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
ShipCountryDescription
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) 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][111]
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][112]
Livatho Greece World War I: The cargo ship was sunk in the Mediterranean Sea north west of Crete (36°24′N 20°56′E) by SM UB-47 ( Imperial German Navy). Her crew survived.[113]
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).[114]
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) by SM UB-47 ( Imperial German Navy).[115]
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).[116]
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) by SM U-55 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war.[117]
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.[118]
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) by SM U-55 ( Imperial German Navy) with the loss of four crew. Two survivors were taken as prisoners of war.[11][119]

9 April
List of shipwrecks: 9 April 1917
ShipCountryDescription
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) with the loss of two lives.[120]
Cairnie  United Kingdom The coaster dragged her anchors, collided with another vessel and sank. Her crew were rescued.[121]
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) by SM U-52 ( Imperial German Navy).[122]
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) by SM U-59 ( Imperial German Navy). Her crew survived.[123]
Ganslei  Russia World War I: The cargo ship was sunk in Kola Bay (69°19′N 33°31′E) by SM U-75 ( Imperial German Navy).[124]
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) by SM UB-30 ( Imperial German Navy) with the loss of seven crew.[125]
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) with the loss of a crew member.[126]
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).[127]
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).[128]
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.[129]

10 April
List of shipwrecks: 10 April 1917
ShipCountryDescription
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).[130]
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) by SM U-28 ( Austro-Hungarian Navy). Her crew survived.[11][131]
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[132][133]
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) by SM UB-20 ( Imperial German Navy). Her crew survived.[11][134]
Porto di Rodi  Italy World War I: The cargo ship was sunk in the Ionian Sea 37°53′N 18°02′E) SM U-32 ( Imperial German Navy) with the loss of 31 crew.[135]
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.[136]
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
ShipCountryDescription
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.[137]
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) by SM U-52 ( Imperial German Navy). Her crew survived.[138]
Candia  Italy World War I: The cargo ship was sunk in the Mediterranean Sea off Zuwara, Libya by SM UC-20 ( Imperial German Navy).[139]
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) by SM UB-47 ( Imperial German Navy). Her crew survived.[11][140]
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.[141]
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][142]
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) by SM U-35 ( Imperial German Navy). Her crew survived.[143]
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.[144]
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][145]
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.[146]
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) by SM U-50 ( Imperial German Navy). Her crew survived.[147]
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.[148]
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.[149]
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.[150]
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][151]

12 April
List of shipwrecks: 12 April 1917
ShipCountryDescription
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).[152]
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][153]
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][154]
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.[155]
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).[156]
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).[157]
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.[158]
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) by SM UC-27 ( Imperial German Navy).[159]
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][160]
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) by SM U-52 ( Imperial German Navy) with the loss of a crew member. Three survivors were taken as prisoners of war.[11][161]
India Greece World War I: The cargo ship was sunk in the Mediterranean Sea east of Gibraltar by SM U-35 ( Imperial German Navy).[162]
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) SM U-32 ( Imperial German Navy) with the loss of a crew member.[163]
Kolaastind  Norway World War I: The cargo ship was sunk in the North Sea (60°14′N 2°42′E) by SM U-30 ( Imperial German Navy) with the loss of four crew.[164]
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.[165]
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.[166]
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) by SM UB-38 ( Imperial German Navy) with the loss of five lives.[11][167]
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).[168]
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) by SM U-27 ( Austro-Hungarian Navy).[169]
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.[170]
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) by SM U-55 ( Imperial German Navy) with the loss of fourteen crew. Two survivors were taken as prisoners of war.[11][171]
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.[172]
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).[173]

13 April
List of shipwrecks: 13 April 1917
ShipCountryDescription
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) by SM U-84 ( Imperial German Navy) with the loss of 22 of her crew.[11][174]
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, Cornwall (51°57′N 7°35′W) with the loss of 28 of her crew.[175]
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) by SM U-30 ( Imperial German Navy). Her crew survived.[176]
Frixos  Russia 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) by SM U-30 ( Imperial German Navy).[177]
Gama  Norway World War I: The coaster was sunk in the North Sea (60°24′N 1°15′E) by SM U-30 ( Imperial German Navy). Her crew survived.[178]
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).[179]
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).[180]
Glenlora  Norway World War I: The barque was sunk in the North Sea (60°36′N 1°53′E) by SM U-30 ( Imperial German Navy). Her crew survived.[181]
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) by SM UC-27 ( Imperial German Navy) with the loss of thirteen of her crew.[11][182]
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][183]
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).[184]
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.[185]
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][186]
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) by SM U-78 ( Imperial German Navy) with the loss of nine crew. Three survivors were taken as prisoners of war.[11][187]
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).[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) by SM U-30 ( Imperial German Navy) with the loss of 27 lives.[189]

14 April
List of shipwrecks: 14 April 1917
ShipCountryDescription
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) 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) 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) 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) 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) 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
ShipCountryDescription
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) 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) 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) 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) 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) 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) 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) 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) 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) 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). Her crew survived.[216]

16 April
List of shipwrecks: 16 April 1917
ShipCountryDescription
Amanda  Sweden World War I: The brig was scuttled in the North Sea[217] (56°27′N 3°00′E) 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) 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) 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) 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) 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) 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) 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 shp struck a mine and sank in the Mediterranean Sea off Cap Blanc, Tunisia.[230]
Smeul  Romanian Naval Forces World War I: The torpedo boat was sunk by Ottoman mines laid by the cruiser SMS Breslau ( Imperial German Navy).[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) 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) 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
ShipCountryDescription
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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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) 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]

18 April
List of shipwrecks: 18 April 1917
ShipCountryDescription
Bergensgut  Norway World War I: The cargo ship was sunk in the North Sea 60 nautical miles (110 km) east of Peterhead, Aberdeenshire, United Kingdom by SM UC-76 ( Imperial German Navy) with the loss of ten of her crew.[254]
Castilian  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 110 nautical miles (200 km) north west by north of Tory Island, County Donegal (56°20′N 10°45′W) by SM U-61 ( Imperial German Navy) with the loss of ten crew.[11][255]
Cragoswald  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 60 nautical miles (110 km) west by south of the Bishop Rock, Isles of Scilly by SM U-84 ( Imperial German Navy). with the loss of two of her crew.[11][256]
Heim  Norway World War I: The cargo ship struck a mine and sank in the English Channel 10 nautical miles (19 km) north of Pointe d'Ailly, Seine-Inférieure, France with the loss of two of her crew. by SM UC-71 ( Imperial German Navy). Her crew survived.[257]
John S. Boyle  United Kingdom World War I: The fishing vessel was scuttled in the North Sea 25 nautical miles (46 km) east by south of St Abb's Head, Berwickshire (56°16′N 1°33′W) by SM UC-41 ( Imperial German Navy). Her crew survived.[42][258]
Louisiana  Denmark World War I: The cargo ship was torpedoed and sunk in the North Sea 20 nautical miles (37 km)) north north east of Buchan Ness, (57°47′N 1°22′W) by SM UC-45 ( Imperial German Navy). Her crew survived.[259]
Marcel  Belgium World War I: The tug was scuttled in the North Sea 8 nautical miles (15 km) north east of the Noord Hinder Lightship ( Netherlands) by SM UB-23 ( Imperial German Navy).[260]
Rameses  United Kingdom World War I: The trawler was scuttled in the North Sea 45 nautical miles (83 km) east of St Abb's Head (56°14′N 1°29′W) by SM UC-41 ( Imperial German Navy). Her crew survived.[261]
Rhydwen  United Kingdom World War I: the cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) north west by west of the Fastnet Rock (51°40′N 14°00′W) by SM U-67 ( Imperial German Navy) with the loss of six crew.[11][262]
Rinaldo  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 18 nautical miles (33 km) west by north of Cape Cherchell, Algeria (36°35′N 1°48′E) by SM U-32 ( Imperial German Navy). Her crew survived.[11][263]
Rowena  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 95 nautical miles (176 km) west by south of the Bishop Rock (49°03′N 8°25′W) by SM U-84 ( Imperial German Navy) with the loss of a crew member.[11][264]
Scalpa  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) north west by west of the Fastnet Rock by SM U-53 ( Imperial German Navy). Her crew survived.[11][265]
Sculptor  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 120 nautical miles (220 km) north west by west of the Fastnet Rock (51°56′N 12°50′W) by SM U-53 ( Imperial German Navy) with the loss of a crew member.[11][266]
Surcouf  France World War I: The sailing vessel was sunk in the English Channel off Île Vierge, Finistère by SM UC-26 ( Imperial German Navy). Her crew survived.[267]
Thistle  United States During a voyage from Seattle, Washington, to Nushagak, Territory of Alaska, the 102-gross register ton, 90.5-foot (27.6 m) steam fishing vessel ran aground in the Gulf of Georgia on Pender Island in the southern Gulf Islands in British Columbia, Canada. When the tide turned, she floated free, but then sank due to the damage she suffered in the grounding. All 14 people on board survived and were rescued by the steamer Admiral Farragut ( United States).[268]
Thomas  United Kingdom World War I: The schooner was scuttled in the Atlantic Ocean 40 nautical miles (74 km) off Cape St. Vincent, Portugal by SM UC-27 ( Imperial German Navy). Her crew survived.[269]
Trekieve  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 100 nautical miles (190 km) west of Gibraltar (35°00′N 9°45′W) by SM U-35 ( Imperial German Navy) with the loss of three crew.[11][270]
Troldfos  Norway World War I: The cargo ship was sunk in the Atlantic Ocean 50 nautical miles (93 km) west north west of the Shetland Islands, United Kingdom by SM U-93 ( Imperial German Navy). Her crew survived.[271]
West Lothian  Norway World War I: The four-masted barque was torpedoed and sunk in the Atlantic Ocean 50 nautical miles (93 km) west of the Shetland Islands (60°55′N 3°30′W) by SM U-93 ( Imperial German Navy). Her crew survived.[272]
Witham  United Kingdom World War I: The trawler was shelled and sunk in the North Sea 125 nautical miles (232 km) east by south of St Abb's Head (55°56′N 1°36′E) by SM UC-50 ( Imperial German Navy). Her crew survived.[42][273]

19 April
List of shipwrecks: 19 April 1917
ShipCountryDescription
Avocet  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 100 nautical miles (190 km) west north west of the Fastnet Rock (51°19′N 12°30′W) by SM U-50 ( Imperial German Navy). Her crew survived.[11][274]
Bethlehem  United Kingdom World War I: The auxiliary sailing vessel struck a mine and sank in the North Sea with the loss of a crew member.[275]
Cilurnum  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 5 nautical miles (9.3 km) south west of Penmarc'h, Finistère, France (47°45′N 4°30′W) by SM UC-21 ( Imperial German Navy) with the loss of a crew member.[11][276]
Ellida  Norway World War I: The cargo ship was sunk in the North Sea 2.5 nautical miles (4.6 km) east north east of Whitby, Yorkshire, United Kingdom by SM UB-41 ( Imperial German Navy). Her crew survived.[277]
Elswick Manor  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) west of Ouessant, Finistère, France (47°36′N 9°32′W) by SM U-84 ( Imperial German Navy). Her crew survived.[11][278]
Gold Coast  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 14 nautical miles (26 km) south of Mine Head, Cornwall (51°46′N 7°28′W) by SM UC-47 ( Imperial German Navy). Her crew survived.[11][279]
Howth Head  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 158 nautical miles (293 km) north west of the Fastnet Rock (52°20′N 13°38′W) by SM U-60 ( Imperial German Navy) with the loss of two crew.[11][280]
Jewel  United Kingdom World War I: The brig was scuttled in St. George's Channel 20 nautical miles (37 km) south east of the Coningbeg Lightship ( United Kingdom) by SM UC-47 ( Imperial German Navy). Her crew survived.[281]
HMT Lobelia  Royal Navy World War I: The naval trawler struck a mine and sank off Fanad Point, Lough Swilly (55°16′N 7°45′W) with the loss of eleven crew.[282]
Poltava  United Kingdom World War I: The coaster struck a mine and sank in the North Sea 3 nautical miles (5.6 km) east north east of the Souter Point Lighthouse, South Shields, County Durham (54°59′00″N 1°16′30″W). Her crew survived.[283]
SMS Seeadler  Imperial German Navy The hulk exploded and sank at Wilhelmshaven, Lower Saxony.
Senator Dantziger  United Kingdom World War I: the schooner was shelled and sunk in the English Channel 15 nautical miles (28 km) south by east of Newhaven, Sussex by SM UC-26 ( Imperial German Navy). Her crew survived.[284]
Senhora da Conceicao  Portugal World War I: The sailing vessel was scuttled in the Atlantic Ocean north of Cape Finisterre, Spain (43°38′N 10°00′W) by SM U-52 ( Imperial German Navy).[285]
Sowwell  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) west of Gibraltar by SM U-35 ( Imperial German Navy) with the loss of 21 crew.[11][286]
HMT Star of Freedom  Royal Navy World War I: The naval trawler struck a mine and sank in the Atlantic Ocean off Trevose Head, Cornwall (50°35′N 5°25′W with the loss of ten of her crew.[287]
Tempus  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) north west by west of the Fastnet Rock by SM U-53 ( Imperial German Navy) with the loss of a crew member.[11][288]

20 April
List of shipwrecks: 20 April 1917
ShipCountryDescription
Annapolis  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 74 nautical miles (137 km) north west of Eagle Island, County Mayo (55°45′N 11°45′W) by SM U-61 and SM U-69 (both  Imperial German Navy). Her crew survived.[289]
August  Russia World War I: The barque was sunk in the Atlantic Ocean 300 nautical miles (560 km) west of Ireland (50°25′N 16°40′W) by SM U-43 ( Imperial German Navy).[290]
Ballochbuie  United Kingdom World War I: The coaster was torpedoed and sunk in the North Sea 7 nautical miles (13 km) east of the Isle of May, Fife by SM UC-41 ( Imperial German Navy) with the loss of three of her crew.[11][291]
Caithness  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) north west by north of Cape Ortegal, Spain (45°48′N 11°07′W) by SM U-52 ( Imperial German Navy) with the loss of 47 crew.[11][292]
Erith  United Kingdom World War I: The trawler was scuttled in the North Sea 40 nautical miles (74 km) south of Girdleness, Aberdeenshire by SM UC-44 ( Imperial German Navy). Her crew survived.[293]
Emma  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west by south of the Fastnet Rock (49°55′N 14°40′W) by SM U-50 ( Imperial German Navy) with the loss of two crew.[294]
Georgios Greece World War I: The cargo ship was sunk in the Bay of Biscay 11 nautical miles (20 km) south east of La Vieille, Finistère, France (47°56′N 4°27′W) by SM UC-21 ( Imperial German Navy).[295]
Grecian  United Kingdom World War I: The trawler was scuttled in the North Sea 22 nautical miles (41 km) north east by east of the Longstone Lighthouse, Northumberland by SM UC-44 ( Imperial German Navy). Her crew survived.[296]
HMT Loch Eye  Royal Navy World War I: The naval trawler struck a mine and sank in the Irish Sea 1.25 nautical miles (2.32 km) south west of Hook Point, County Waterford (52°08′N 6°59′W with the loss of seven of her crew.[297]
Lowdale  United Kingdom World War I: The collier was shelled and sunk in the Atlantic Ocean 90 nautical miles (170 km) west by north of Gibraltar by SM U-35 ( Imperial German Navy). Her crew survived.[11][298][299]
Malakand  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 145 nautical miles (269 km) west of the Bishop Rock, Isles of Scilly (49°20′N 10°00′W) by SM U-84 ( Imperial German Navy) with the loss of a crew member.[11][300]
Nentmoor  United Kingdom World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 140 nautical miles (260 km) west of Gibraltar (35°25′N 8°02′W) by SM U-35 ( Imperial German Navy). Her crew survived.[11][301]
HMS Nepaulin  Royal Navy World War I: The auxiliary minesweeper struck a mine and sank in the North Sea off the Dyck Lightship ( United Kingdom) with the loss of nineteen of her crew.[302]
HMT Othonna  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea (56°17′N 2°27′W) with the loss of nine of her crew.[303]
Portloe  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 160 nautical miles (300 km) west north west of the Fastnet Rock (51°13′N 14°10′W) by SM U-67 ( Imperial German Navy) with the loss of 24 crew.[304]
Ringholm  Norway World War I: The coaster was sunk in the North Sea 5 nautical miles (9.3 km) off St. Abb's Head, Berwickshire, United Kingdom by SM UC-41 ( Imperial German Navy). Her crew survived.[305]
HMT Ruthin Castle  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off Skinningrove, Yorkshire (54°37′N 0°53′W) with the loss of nine of her crew.[306]
San Hilario  United Kingdom World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 270 nautical miles (500 km) west by north of the Fastnet Rock (50°55′N 16°28′W) by SM U-43 ( Imperial German Navy). Her crew survived.[11][307]
Torr Head  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 160 nautical miles (300 km) north west by north of the Fastnet Rock (52°10′N 14°00′W) by SM U-60 ( Imperial German Navy). Her crew survived.[11][308]

21 April
List of shipwrecks: 21 April 1917
ShipCountryDescription
Diadem  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west by west of the Fastnet Rock by SM U-50 ( Imperial German Navy). Her crew survived.[11][309]
Emile et Charlotte  France World War I: The fishing vessel was sunk in the Bay of Biscay north east of the Île d'Yeu, Vendée by SM UC-21 ( Imperial German Navy). Her crew survived.[310]
SMS G42  Imperial German Navy World War I: Battle of Dover Strait: The Großes Torpedoboot 1913-class torpedo boat was rammed and sunk in the Strait of Dover by HMS Broke ( Royal Navy) with the loss of 36 of her 83 crew.
SMS G85  Imperial German Navy World War I: Battle of Dover Strait: The Großes Torpedoboot 1913-class torpedo boat was torpedoed and sunk in the Strait of Dover by HMS Swift ( Royal Navy).
Gerda  Norway World War I: The coaster was sunk in the North Sea 5 nautical miles (9.3 km) south west of Sumburgh Head, Shetland Islands, United Kingdom by SM UC-55 ( Imperial German Navy). Her crew survived.[311]
Giosue  Italy World War I: The brigantine was shelled and sunk in the Mediterranean Sea off Tunis, Tunisia (37°53′N 10°06′E) by SM U-32 ( Imperial German Navy).[312]
Jedburgh  United Kingdom World War I: The trawler was scuttled in the North Sea (35 nautical miles (65 km) north north west of Foula by SM UC-33 ( Imperial German Navy). Her crew survived.[313]
Peik  Norway World War I: The coaster was sunk in the North Sea 10 nautical miles (19 km) north of Coquet Island, Northumberland, United Kingdom by SM UC-44 ( Imperial German Navy). Her crew survived.[314]
Pontiac  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 56 nautical miles (104 km) south west of the Fastnet Rock (50°31′N 10°09′W) by SM U-53 ( Imperial German Navy) with the loss of two crew.[11][315]
Sebek  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 145 nautical miles (269 km) north west of Tory Island, County Donegal (56°12′N 12°20′W) by SM U-70 ( Imperial German Navy) with the loss of a crew member.[11][316]
Skjold  Norway World War I: The barque was shelled and sunk in the Atlantic Ocean west north west of the Fastnet Rock (51°41′N 14°37′W) by SM U-61 ( Imperial German Navy). Her crew survived.[317]
Telena  United Kingdom World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) west north west of the Fastnet Rock (51°16′N 14°00′W) by SM U-61 ( Imperial German Navy). Her crew survived.[11][318]
SM UC-30  Imperial German Navy World War I: The Type UC II submarine struck a mine and sank in the North Sea 66 nautical miles (122 km) west of Nymindegab, Denmark with the loss of all 26 crew.
Ville de Dieppe  France World War I: The barque was shelled and sunk in the Bay of Biscay west of the Île d'Oléron, Charente-Maritime (45°59′N 1°52′W) by SM UC-21 ( Imperial German Navy). Her crew survived and were rescued by a French Navy submarine.[319]
Warrior  United Kingdom World War I: The cargo ship struck a mine and sank in the Mediterranean Sea 7 nautical miles (13 km) north east of the Fratelli Rocks, Tunisia with the loss of a crew member.[320]
Yeovil  United Kingdom World War I: The trawler was scuttled in the North Sea 35 nautical miles (65 km) north north west of Foula by SM UC-33 ( Imperial German Navy) with the loss of a crew member.[42][321]

22 April
List of shipwrecks: 22 April 1917
ShipCountryDescription
Arethusa  United Kingdom World War I: The barque was scuttled in the Atlantic Ocean 15 nautical miles (28 km) north west of Eagle Island, County Mayo by SM UC-66 ( Imperial German Navy). Her crew survived.[322]
Blaatind  Norway World War I: The cargo ship was sunk in the Tyrrhenian Sea 30 nautical miles (56 km) off Civitavecchia, Lazio, Italy (42°28′N 10°59′E) by SM U-33 ( Imperial German Navy) with the loss of two crew.[323]
Capenor  United Kingdom World War I: The cargo ship struck a mine and sank in the Bay of Biscay off La Pallice, Charente-Maritime, France (46°06′N 1°17′W). Her crew survived.[324]
Giskø  Norway World War I: The cargo ship was sunk in the North Sea (61°03′N 3°28′E by SM U-21 ( Imperial German Navy). Her crew survived.[325]
Godø  Norway World War I: The coaster was sunk in the North Sea 16 nautical miles (30 km) east of the Shetland Islands, United Kingdom by SM UC-41 ( Imperial German Navy). Her crew survived.[326]
Maria S.  Italy World War I: The sailing vessel was sunk in the Tyrrhenian Sea off Civitavecchia by SM U-33 ( Imperial German Navy).[327]
HMML 431  Royal Navy The motor launch was lost on this date.[17]
Neepawah  Canada World War I: The cargo ship was scuttled in the Atlantic Ocean 120 nautical miles (220 km) south west of the Bishop Rock, Isles of Scilly, United Kingdom by SM U-53 ( Imperial German Navy). Her crew survived.[11][328]
Nightingale  United Kingdom World War I: The fishing vessel was scuttled in the North Sea 26 nautical miles (48 km) south of Aberdeen by SM UC-44 ( Imperial German Navy). Her crew survived.[329]
Percy Birdsall  United States World War I: The schooner was shelled and sunk in the Bay of Biscay off the Gironde Estuary by SM UC-21 ( Imperial German Navy). Her crew survived.[330][331]
Theodore William  Norway World War I: The cargo ship was sunk in the North Sea 40 nautical miles (74 km) off the Shetland Islands (60°45′N 0°13′E) by SM U-21 ( Imperial German Navy). Her crew survived.[332]
Unione  Italy World War I: The brigantine was sunk in the Tyrrhenian Sea off Civitavecchia (42°01′N 10°54′E) by SM U-33 ( Imperial German Navy).[333]
Valerie  Norway World War I: The barque was shelled and sunk in the Bay of Biscay 30 nautical miles (56 km) west of the Cordouan Lighthouse, Charente Maritime by SM UC-21 ( Imperial German Navy). Her crew survived.[334]
Vestelv  Norway World War I: The full-rigged ship was scuttled in the Atlantic Ocean 14 nautical miles (26 km) off Tory Island, County Donegal, United Kingdom by SM U-93 ( Imperial German Navy). Her crew survived.[335]
Woodward Abrahams  United States World War I: The three-masted schooner was captured and scuttled with explosives in the Atlantic Ocean 407 nautical miles (754 km) west of the Fastnet Rock by SM U-43 ( Imperial German Navy). Her crew survived.[336][337][338]

23 April
List of shipwrecks: 23 April 1917
ShipCountryDescription
Acadian  Norway World War I: The barque was scuttled in the Atlantic Ocean 65 nautical miles (120 km) north west of Tory Island, County Donegal, United Kingdom (55°44′N 9°30′W) by SM U-52 ( Imperial German Navy). Her crew survived.[339]
Auriac  United Kingdom World War I: The coaster was shelled and sunk in the North Sea 5 nautical miles (9.3 km) east south east of St Abb's Head, Berwickshire by SM UC-44 ( Imperial German Navy) with the loss of a crew member.[11][340]
Bandiera E. Moro  United Kingdom World War I: The cargo ship was sunk in the Atlantic Ocean 50 nautical miles (93 km) west of Tangier, Morocco by SM U-35 ( Imperial German Navy). Her crew survived.[341]
Baron Stjernblad  Denmark World War I: The coaster was sunk in the North Sea 5 nautical miles (9.3 km) north east of Eyemouth, Berwickshire by SM UC-44 ( Imperial German Navy). Her crew survived.[342]
Boro  Italy World War I: The sailing vessel was sunk in the Aegean Sea east of Rhodes, Greece by SM UB-42 ( Imperial German Navy).[343]
Calluna  Denmark World War I: The barque was sunk in the Atlantic Ocean south west of the Isles of Scilly, United Kingdom (48°51′N 8°38′W) by SM U-61 ( Imperial German Navy). Her crew survived.[344]
Cenobic  Belgium World War I: The fishing vessel struck a mine and sank in the English Channel off Le Tréport, Seine-Inférieure, France with the loss of four of her crew.[345]
Dykland  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 the Fastnet Rock by SM U-50 ( Imperial German Navy). Her crew survived.[11][346]
Eptapyrgion  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) west of the Isles of Scilly by SM U-53 ( Imperial German Navy). Her crew survived.[11][347]
Imataka  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Irish Sea 15 nautical miles (28 km) south south west of the Daunt Rock by SM UC-47 ( Imperial German Navy). Her crew survived.[11][348]
Lena  United Kingdom World War I: The cargo ship was sunk in the Atlantic Ocean south west of the Isles of Scilly (48°45′N 8°30′W) by SM U-61 ( Imperial German Navy) with the loss of all 25 crew.[349]
HMT Lena Melling  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off the Elbow Lightship ( United Kingdom) (51°22′30″N 1°33′30″E) with the loss of eleven of her crew.[350]
Marita  Norway World War I: The full-rigged ship was sunk in the Atlantic Ocean 110 nautical miles (200 km) west of St. Kilda, Inverness-shire, United Kingdom (58°21′N 10°34′W) by SM U-82 ( Imperial German Navy). Her crew survived.[351]
Oswald  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west of the Fastnet Rock by SM U-50 ( Imperial German Navy). Her crew survived.[11][352]
HMT Rose II  Royal Navy World War I: The naval trawler struck a mine and sank in the Irish Sea off Belfast, County Down (54°44′N 5°38′W) with the loss of six of her crew.[353]
Savio  Italy World War I: The cargo ship was sunk in the Bay of Biscay 20 nautical miles (37 km) south east of Belle Île, Morbihan, France by SM UC-36 ( Imperial German Navy). Her crew survived.[354]
Scot  Denmark World War I: The cargo ship was sunk in the North Sea 12 nautical miles (22 km) east by north of St Abb's Head (56°02′N 1°46′W) by SM UC-44 ( Imperial German Navy). Her crew survived.[355]
Stegg  Norway World War I: The coaster was sunk in the North Sea (60 nautical miles (110 km) east of Lerwick, Shetland Islands, United Kingdom (60°41′N 0°37′E) by SM UC-41 ( Imperial German Navy) with the loss of a crew member.[356]
Svanen  Denmark World War I: The full-rigged ship was sunk in the Atlantic Ocean 30 nautical miles (56 km) west north west of Muckle Flugga, Shetland Islands by SM U-60 ( Imperial German Navy) with the loss of two crew.[357]

24 April
List of shipwrecks: 24 April 1917
ShipCountryDescription
Amulree  United Kingdom World War I: The barque was sunk in the Atlantic Ocean 50 nautical miles (93 km) north by east of Tory Island, County Donegal (56°10′N 8°40′W) by SM U-81 ( Imperial German Navy). Her crew survived.[358]
Anglesea  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean[359] 160 nautical miles (300 km) south west of the Bishop Rock, Isles of Scilly (48°56′N 10°17′W) by SM U-53 ( Imperial German Navy). Her crew survived.[360]
Barnton  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 40 nautical miles (74 km) west by south of Pointe de Chassiron, Île d'Oléron, Charente-Maritime, France (45°40′N 2°12′W) by SM UC-21 ( Imperial German Navy) with the loss of fourteen of her crew.[11][361]
Bien Aime Prof. Luigi  United Kingdom World War I: The sailing vessel was scuttled in the Atlantic Ocean off Cape St. Vincent, Portugal (36°53′N 9°10′W) by SM U-35 ( Imperial German Navy).[362]
Clan Galbraith  Norway World War I: The four-masted barque was scuttled in the Atlantic Ocean west of Ireland (52°30′N 14°00′W) by SM U-70 ( Imperial German Navy). Her crew survived.[363]
Cordelia  Sweden World War I: The barque was shelled and sunk in the Atlantic Ocean[359] (51°08′N 15°13′W) by SM U-43 ( Imperial German Navy). Her crew survived.[364]
Eos  Denmark World War I: The three-masted schooner was sunk in the Atlantic Ocean west of Ireland (52°40′N 14°45′W) by SM U-70 ( Imperial German Navy). Her crew survived.[365]
Ferndene  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) west of the Bishop Rock by SM U-53 ( Imperial German Navy) with the loss of nine crew.[11][366]
Heather  United Kingdom World War I: The drifter was scuttled in the Atlantic Ocean 14 nautical miles (26 km) west by north of the Bishop Rock (49°52′N 6°48′W) by SM UC-47 ( Imperial German Navy). Her crew survived.[367]
Kenilworth  United Kingdom World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 3.5 nautical miles (6.5 km) west by south of Point St. Mathieu, Finistère, France (48°17′N 4°48′W) by SM UC-36 ( Imperial German Navy). Her crew survived.[368]
La Providence  France World War I: The schooner was sunk in the Loire Estuary by SM UC-36 ( Imperial German Navy).[369]
HMT Margate  Royal Navy World War I: The naval trawler was shelled and sunk in the North Sea off Spurn Head, Yorkshire by SM UC-50 ( Imperial German Navy) with the loss of thirteen of her crew.[370]
Marie Blanche  France World War I: The sailing vessel was sunk in the English Channel 30 nautical miles (56 km) north of Cherbourg, Seine Maritime (50°08′N 1°37′W) by SM UB-32 ( Imperial German Navy) with the loss of a crew member.[371]
Mayfly  United Kingdom World War I: The trawler was shelled and sunk in the North Sea 75 nautical miles (139 km) north east by east of Scarborough, Yorkshire by SM UC-50 ( Imperial German Navy) with the loss of three of her crew.[372]
Metropolis  Norway World War I: The four-masted barque was scuttled in the Atlantic Ocean south west of the Isles of Scilly (48°30′N 11°15′W) by SM U-61 ( Imperial German Navy). Her crew survived.[373]
Minister Tak van Poortvliet  Netherlands World War I: The cargo ship was torpedoed and sunk in the North Sea 20 nautical miles (37 km) off IJmuiden, North Holland (52°42′N 3°32′E) by SM UB-10 ( Imperial German Navy).[374]
Nordsøen  Denmark World War I: The cargo ship was scuttled in the Atlantic Ocean off Cape St. Vincent (37°02′N 8°54′W) by SM U-35 ( Imperial German Navy). Her crew survived.[375]
Plutus  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 9 nautical miles (17 km) north West of Trevose Head, Cornwall (50°41′N 5°07′W) by SM UC-47 ( Imperial German Navy) with the loss if a crew member.[11][17][376]
Thistleard  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 135 nautical miles (250 km) west north west of Tory Island (55°10′N 12°00′W) by SM U-82 ( Imperial German Navy). Her crew survived.[11][377]
Torvore  Norway World War I: The cargo ship was sunk in the Atlantic Ocean off Cape St. Vincent (37°00′N 8°54′W) by SM U-35 ( Imperial German Navy). Her crew survived.[378]
Upton Castle  United Kingdom World War I: The trawler was scuttled in the North Sea 60 nautical miles (110 km) east of the Longstone Lighthouse, Northumberland by SM UC-29 ( Imperial German Navy). Her crew survived.[379]
Valkyrian  Sweden World War I: The three-masted schooner was shelled and sunk in the Atlantic Ocean south west of Ireland[380] by SM U-70 ( Imperial German Navy) with the loss of a crew member.[381]
Vestdal  Norway World War I: The full-rigged ship was shelled and sunk in the Atlantic Ocean 280 nautical miles (520 km) west of Ireland (52°19′N 15°18′W) by SM U-70 ( Imperial German Navy) with the loss of a crew member.[382]
Vilhelm Krag  Norway World War I: The cargo ship was sunk in the Atlantic Ocean 5 nautical miles (9.3 km) west of the Pildale Lighthouse, Portugal (37°03′N 8°44′W) by SM U-35 ( Imperial German Navy). Her crew survived.[383]

25 April
List of shipwrecks: 25 April 1917
ShipCountryDescription
Abosso  United Kingdom World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) west by north of the Fastnet Rock (57°10′N 14°58′W) by SM U-43 ( Imperial German Navy) with the loss of 65 lives.[11][384]
Baigorry  France World War I: The cargo ship was scuttled in the Bay of Biscay 15 nautical miles (28 km) south south east of Belle Île, Morbihan (47°04′N 2°54′W) by SM UC-21 ( Imperial German Navy). Her crew survived.[385]
Ballarat  United Kingdom World War I: The troopship was torpedoed and damaged in the Atlantic Ocean 24 nautical miles (44 km) south by west of the Wolf Rock, Cornwall (49°33′N 5°36′W) by SM UB-32 ( Imperial German Navy). She was taken under tow but consequently sank (49°51′45″N 5°19′00″W). Her crew and the troops on board survived.[386]
Elisabeth  Denmark World War I: An attempt was made to scuttle the schooner in the Atlantic Ocean 70 to 80 nautical miles (130 to 150 km) south west of Ireland (51°02′N 12°05′W) by SM U-53 ( Imperial German Navy). The derelict ship was discovered 180 nautical miles (330 km)) north west of the Fastnet Rock on 30 April by SM U-81 ( Imperial German Navy), which also attempted to scuttle her, but she was kept afloat by her cargo of Pitch Pine. Although declared a constructive total loss, she was subsequently repaired and returned to service.[387]
Elizabeth  Netherlands World War I: The lugger was scuttled in the North Sea (52°36′N 3°40′E) by SM UB-10 ( Imperial German Navy). Her crew survived.[388]
Este  Denmark World War I: The barque was sunk in the North Sea 50 nautical miles (93 km) west of Egerø, Norway (58°25′N 3°48′E) by SM UB-34 ( Imperial German Navy). Her crew survived.[389]
Étendard  French Navy World War I: The Branlebas-class destroyer was torpedoed and sunk by an Imperial German Navy destroyer in the North Sea off Dunquerque, Nord, France, with the loss of all hands.[390]
Glenesk  Norway World War I: The barque was scuttled in the Atlantic Ocean 75 nautical miles (139 km) west north west of Eagle Island, County Mayo, United Kingdom by SM U-81 ( Imperial German Navy). Her crew survived.[391]
Havila  Denmark World War I: The barque was sunk on the Atlantic Ocean 15 nautical miles (28 km) east north east of North Rona, United Kingdom by SM U-58 ( Imperial German Navy). Her crew survived.[392]
Hawthornbank  Denmark World War I: The barque was sunk in the Atlantic Ocean 35 nautical miles (65 km) north by east of North Rona by SM U-58 ( Imperial German Navy) with the loss of nine crew.[393]
Heathfield  Norway World War I: The barque was scuttled in the Atlantic Ocean 53 nautical miles (98 km) west by north of Eagle Island by SM U-81 ( Imperial German Navy). Her crew survived.[394]
Hesperides  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) north west of the Fastnet Rock (52°00′N 13°50′W) by SM U-69 ( Imperial German Navy) with the loss of a crew member.[11][395]
Hirondelle  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 13 nautical miles (24 km) south by east of Belle Île, Morbihan, France by SM UC-36 ( Imperial German Navy). Her crew survived.[396]
Invermay  United Kingdom World War I: The barque was scuttled in the Atlantic Ocean 40 nautical miles (74 km) north west by north of Eagle Island (54°40′N 11°00′W) by SM U-81 ( Imperial German Navy). Her crew survived.[397]
Laura  United Kingdom World War I: The schooner was set afire and sunk in the Atlantic Ocean 150 nautical miles (280 km) west north west of the Fastnet Rock (51°20′N 13°30′W) by SM U-53 ( Imperial German Navy). Her crew survived.[398]
Stephanosis  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) south west of the Fastnet Rock by SM U-82 ( Imperial German Navy) with the loss of six of her crew.[11][399]
Sokoto  Denmark World War I: The barque was sunk in the Atlantic Ocean 15 nautical miles (28 km) north east by north of North Rona by SM U-58 ( Imperial German Navy). Her crew survived.[400]
Swanmore  United Kingdom World War I: The cargo ship was shelled and damaged in the Atlantic Ocean 230 nautical miles (430 km) west north west of the Fastnet Rock by SM U-43 and SM U-93 (both  Imperial German Navy) She was then torpedoed and sunk by SM U-50 ( Imperial German Navy) with the loss of eleven crew.[401]

26 April
List of shipwrecks: 26 April 1917
ShipCountryDescription
Active  United Kingdom World War I: The trawler was scuttled in the North Sea 65 nautical miles (120 km) east by south of the Longstone Lighthouse by SM UC-50 ( Imperial German Navy). Her crew survived.[402]
Agnes Cairns  United Kingdom World War I: The sailing vessel was scuttled in the English Channel 8 nautical miles (15 km) north east of Alderney, Channel Islands by SM UC-65 ( Imperial German Navy). Her crew survived.[403]
Aigle  France World War I: The brigantine was scuttled in the English Channel 11 nautical miles (20 km) south west of Start Point, Devon, United Kingdom by SM UC-47 ( Imperial German Navy).[404]
Alhama  United Kingdom World War I: The cargo ship struck a mine and sank in the English Channel off Calais, Pas-de-Calais, France. Her crew survived.[405]
Amsteldijk  Netherlands World War I: The trawler was sunk in the North Sea off the Haaks Lightship ( Netherlands) (52°56′N 4°10′E) by SM UC-63 ( Imperial German Navy). Her crew were rescued by the trawler Voorbode ( Netherlands.[406]
Athole  United Kingdom World War I: The auxiliary ketch was shelled and sunk in the English Channel 20 nautical miles (37 km) south of the Owers Lightship ( United Kingdom) by SM UC-65 ( Imperial German Navy). Her crew survived.[407]
Augusta  Italy The barque was scuttled in the Mediterranean Sea north east of Cap Bon, Tunisia (37°22′N 11°31′E) by SM UC-27 ( Imperial German Navy).[408]
Boy Dennis  United Kingdom World War I: The fishing vessel was scuttled in the English Channel 10 nautical miles (19 km) south south west of Start Point, Devon by SM UC-21 ( Imperial German Navy). Her crew survived.[409]
Bretagne et Vendée  France World War I: The sailing vessel was sunk in the English Channel off Alderney (49°51′N 2°04′W) by SM UC-65 ( Imperial German Navy).[410]
Chertsey  United Kingdom World War I: The collier was torpedoed and sunk in the Mediterranean Sea 4 nautical miles (7.4 km) north of Algiers, Algeria (36°52′N 3°05′W) by SM UC-67 ( Imperial German Navy). Her crew survived.[11][299][411]
Ehrglis  Russia World War I: The sailing vessel was set afire and sunk in the Atlantic Ocean (51°50′N 17°49′W) by SM U-43 ( Imperial German Navy).[412]
Gennarino  Italy World War I: The three-masted schooner was scuttled in the Mediterranean Sea off Cap Bon (37°26′N 11°26′E) by SM UC-27 ( Imperial German Navy).[413]
Harflete  United Kingdom World War I: The cargo ship was torpedoed, shelled and sunk in the Atlantic Ocean 200 nautical miles (370 km) north west by west of the Fastnet Rock (51°54′N 14°48′W) by SM U-70 ( Imperial German Navy) with the loss of a crew member.[11][414]
Hekla  Norway World War I: The three-masted schooner was sunk in the Atlantic Ocean 120 nautical miles (220 km) north west of the Slyne Head Lighthouse, County Galway, United Kingdom by SM U-53 ( Imperial German Navy). Her crew survived.[415]
Hektoria  Norway World War I: The cargo ship was sunk in the Atlantic Ocean (50°38′N 18°40′W) by SM U-43 ( Imperial German Navy). Her crew survived.[416]
John Lockett  Norway World War I: The barque was scuttled in the English Channel 25 nautical miles (46 km) south of The Lizard, Cornwall, United Kingdom (49°32′N 5°05′W) by SM UC-47 ( Imperial German Navy). Her crew survived.[417]
Kong Oscar II  Norway World War I: The sailing vessel was sunk in the Seine Estuary by SM UB-38 ( Imperial German Navy). Her crew survived.[418]
Monitor  United Kingdom World War I: The schooner was scuttled in the Mediterranean Sea 20 nautical miles (37 km) south by east of Cap d'Antibes, Alpes-Maritimes, France (43°11′N 7°52′E) by SM U-33 ( Imperial German Navy). Her crew survived.[419]
HMT Plantin  Royal Navy World War I: The naval trawler struck a mine and sank in the English Channel 3 nautical miles (5.6 km) east of Anvil Point, Dorset with the loss of nine of her crew.[420]
HMT Repro  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea off Tod Head, Aberdeenshire (56°53′N 2°08′W) with the loss of thirteen of her crew.[421]
Rio Lages  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 155 nautical miles (287 km) north west by north of the Fastnet Rock (51°38′N 12°52′W) by SM U-69 ( Imperial German Navy) with the loss of three of her crew.[11][422]
SMS Senator Sachse  Imperial German Navy The Vorpostenboot was lost on this date.[423]
Telefon  Norway World War I: The sailing vessel was sunk in the North Sea (54°57′N 1°48′E) by SM UC-50 ( Imperial German Navy). Her crew survived.[424]
Vauxhall  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 110 nautical miles (200 km) north west by west of the Fastnet Rock (51°45′N 12°30′W) by SM U-69 ( Imperial German Navy) with the loss of two of her crew.[11][425]

27 April
List of shipwrecks: 27 April 1917
ShipCountryDescription
HMT Agile  Royal Navy World War I: The naval trawler struck a mine and sank in the North Sea 3 nautical miles (5.6 km) east of the Sunk Lightship ( United Kingdom) with the loss of three of her crew.[426]
HMS Alfalfa  Royal Navy World War I: The collier was sunk in the Atlantic Ocean 30 nautical miles (56 km) off the Isles of Scilly (49°15′N 6°20′W) by SM UB-32 ( Imperial German Navy) with the loss of 30 crew.[299][427]
Beemah  United Kingdom World War I: The collier was torpedoed and sunk in the Atlantic Ocean 30 nautical miles (56 km) south west by south of the Bishop Rock, Isles of Scilly by SM UB-32 ( Imperial German Navy) with the loss of three of her crew.[299][428]
Burrowa  United Kingdom The four-masted barque was scuttled in the Atlantic Ocean 60 nautical miles (110 km) west of the Isles of Scilly by SM UC-65 ( Imperial German Navy). Her crew survived.[429]
Dromore  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) west of Tory Island, County Donegal (56°30′N 11°40′W) by SM U-58 ( Imperial German Navy). Her crew survived.[430]
Dunmore Head  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 135 nautical miles (250 km) west of Tory Island (56°12′N 12°00′W) by SM U-62 ( Imperial German Navy). Her crew survived.[11][431]
Glencluny  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 4 nautical miles (7.4 km) north west of Cape Sigli, Algeria by SM UC-67 ( Imperial German Navy) with the loss of four of her crew.[11][432]
Good Hope  United Kingdom World War I: The ketch was shelled and sunk in the English Channel 15 nautical miles (28 km) north north west of Barfleur, Manche, France by SM UC-72 ( Imperial German Navy). Her crew survived.[433]
Inveramsay  United Kingdom World War I: The barque was shelled and sunk in the Atlantic Ocean north west of Ireland (56°00′N 11°30′W) by SM U-62 ( Imperial German Navy) with the loss of all hands.[434]
Jessie  United Kingdom World War I: The schooner was scuttled in the English Channel 7 nautical miles (13 km) west of Portland Bill, Dorset by SM UB-38 ( Imperial German Navy). Her crew survived.[435]
Karuma  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 5 nautical miles (9.3 km) north of Cape Sigle (37°09′N 4°50′E) by SM UC-67 ( Imperial German Navy) with the loss of two of her crew.[11][436]
Langfond  Norway World War I: The cargo ship was sunk in the Atlantic Ocean (58°49′N 10°53′W) by SM U-58 ( Imperial German Navy). Her crew survived.[437]
Mafalda  Italy World War I: The brigantine was scuttled in the Mediterranean Sea (43°06′N 7°40′E) by SM U-33 ( Imperial German Navy).[438]
Manchester Citizen  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 240 nautical miles (440 km) north west of the Fastnet Rock (52°30′N 15°40′W) by SM U-70 ( Imperial German Navy) with the loss of a crew member.[439]
Margaret B. Rouss  United States The schooner was captured and scuttled by burning in the Mediterranean Sea 42 nautical miles (78 km) south of Monaco by SM U-33 ( Imperial German Navy). Her crew survived.[440][441][442]
Nidelven  Norway World War I: The cargo ship struck a mine and sank in the North Sea 10 nautical miles (19 km) north east of Coquet Island, Northumberland, United Kingdom (55°29′N 1°27′W) with the loss of three of her crew.[443]
Ragnhild  Norway World War I: The cargo ship struck a mine and sank in the North Sea 10 nautical miles (19 km) north of the mouth of the River Tyne (55°16′N 1°22′W) with the loss of two of her crew.[444]
Uranus  Italy World War I: The cargo ship was sunk in the Atlantic Ocean 60 nautical miles (110 km) west of the Fastnet Rock by SM U-81 ( Imperial German Navy).[445]
Verjø  Norway World War I: The cargo ship was sunk in the Atlantic Ocean 10 nautical miles (19 km) north of the Stiff Lighthouse, Ouessant, Finistère, France by SM UC-36 ( Imperial German Navy) with the loss of ten of her crew.[446]

28 April
List of shipwrecks: 28 April 1917
ShipCountryDescription
Alu Mendi  Spain World War I: The cargo ship was sunk in the Atlantic Ocean 12 nautical miles (22 km) south south east of the Tuskar Rock, Ireland by SM UC-65 ( Imperial German Navy).[447]
Anne Marie  Norway World War I: The sailing vessel was sunk in the Atlantic Ocean 160 nautical miles (300 km) north west of Ireland by SM U-70 ( Imperial German Navy). Her crew survived.[448]
Bullmouth  United Kingdom World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 125 nautical miles (232 km) north west by west of Tory Island, County Donegal (58°34′N 10°50′W) by SM U-58 ( Imperial German Navy). Her crew survived.[11][449]
Carmelo Padre  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[450]
Condor  Russia World War I: The cargo ship was sunk in the Atlantic Ocean 90 nautical miles (170 km) west of Ouessant, Finistère, France by SM UC-36 ( Imperial German Navy).[451]
Diana  Denmark World War I: The barquentine was damaged in the Atlantic Ocean 200 nautical miles (370 km) south west of the Fastnet Rock (49°40′N 13°10′W) by SM U-93 ( Imperial German Navy). She was subsequently towed in to Queenstown, County Cork, United Kingdom where she was declared a total loss. Diana was later repaired and returned to service.[452]
Giuseppe Padre I  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[453]
Giuseppina G.  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[454]
I Due Fratelli P.  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[455]
Jose de Larrinaga  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) west north west of the Fastnet Rock (51°32′N 13°20′W) by SM U-81 ( Imperial German Navy) with the loss of twelve crew.[456]
Juliette  France World War I: The sailing vessel struck a mine and sank in the Mediterranean Sea off Mostaganem, Algeria.[457]
Karonga  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Strait of Messina 2 nautical miles (3.7 km) south south east of Cape Schio, Italy by SM U-63 ( Imperial German Navy) with the loss of eighteen crew. Her captain was taken as a prisoner of war.[11][458]
Lisetta  Italy World War I: The fishing vessel was sunk in the Mediterranean Sea 8 nautical miles (15 km) west of the Îles Sanguinaires, France by SM U-33 ( Imperial German Navy). Her crew survived.[459]
Medina  United Kingdom World War I: The passenger ship was torpedoed and sunk in the English Channel off Start Point, Devon (50°15′N 3°30′W) by SM UB-31 ( Imperial German Navy).
Natale B.  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[460]
Niobe  Italy World War I: The sailing vessel was sunk in the Mediterranean Sea off Malta by SM UC-37 ( Imperial German Navy).[461]
Olga  Russia World War I: The cargo ship was shelled and sunk in the Barents Sea 89 nautical miles (165 km) off the North Cape, Finnmark, Norway by SM U-45 ( Imperial German Navy).[462]
Pontiac  United Kingdom World War I: The cargo ship was sunk in the Mediterranean Sea 70 nautical miles (130 km) north east of Marsa Susa, Libya (34°04′N 22°06′E) by SM UC-74 ( Imperial German Navy) with the loss of a crew member. Four of the survivors were taken as prisoners of war.[463]
Port Jackson  United Kingdom World War I: The four-masted barque was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) west by north of the Fastnet Rock (51°00′N 14°02′W) by SM U-67 ( Imperial German Navy) with the loss of fourteen crew.[464]
Pursue  United Kingdom World War I: The fishing vessel was scuttled in the English Channel 12 nautical miles (22 km) south west of Bolt Head, Devon by SM UB-32 ( Imperial German Navy). Her crew survived.[465]
San Francesco Di Paola  Italy World War I: The sailing vessel was sunk in the Strait of Messina by SM U-63 ( Imperial German Navy).[466]
Teakwood  United Kingdom World War I: The tanker was torpedoed and sunk in the Aegean Sea 26 nautical miles (48 km) south west by west of Sapientza, Greece (36°39′N 21°10′E) by SM U-14 ( Austro-Hungarian Navy). Her crew survived.[11][467]
Terence  United Kingdom World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 150 nautical miles (280 km) west by north of the Fastnet Rock (52°40′N 12°55′W) by SM U-81 ( Imperial German Navy) with the loss of a crew member.[11][468]
Vacuum  United States World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 120 nautical miles (220 km) west of Barra, Outer Hebrides, United Kingdom (57°20′N 10°10′W) by SM U-44 ( Imperial German Navy) with the loss of her captain and 23 crew. 21 crew were rescued.[469][470][471]

29 April
List of shipwrecks: 29 April 1917
ShipCountryDescription
Askepot  Norway World War I: The full-rigged ship was scuttled in the Atlantic Ocean 125 nautical miles (232 km) west of the Isles of Scilly, United Kingdom (49°48′N 9°17′W) by SM U-21 ( Imperial German Navy). Her crew survived.[472]
Bayonnais  France World War I: The fishing vessel was scuttled in the Bay of Biscay off Guilvinec, Finistère by SM UC-72 ( Imperial German Navy) with the loss of all four crew.[473]
Carbo I  Denmark World War I: The cargo ship was sunk in the North Sea (55°56′N 2°06′E) by SM UC-29 ( Imperial German Navy). Her crew survived.[474]
Comedian  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) west of the Bishop Rock, Isles of Scilly (48°06′N 10°45′W) by SM U-93 ( Imperial German Navy). Her crew survived.[11][475]
Daleby  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) north west of the Fastnet Rock by SM U-70 ( Imperial German Navy) with the loss of 25 crew.[11][476]
Dilston Castle  United Kingdom World War I: The trawler was scuttled in the North Sea 16 nautical miles (30 km) east by south of Aberdeen (57°10′N 1°32′W) by SM UB-22 ( Imperial German Navy). Her crew survived.[42][477]
Ellen Harrison  United Kingdom World War I: The schooner was shelled and sunk in the English Channel 7 nautical miles (13 km) north west of Cherbourg, Seine-Inférieure, France by SM UB-32 ( Imperial German Navy). Her crew survived.[11][478]
Eugènie et Lucie  France World War I: The sailing vessel was sunk in the Bay of Biscay off Audierne, Finistère by SM UC-72 ( Imperial German Navy).[479]
Frère des Cinq Soeurs  France World War I: The sailing vessel was sunk in the Bay of Biscay off Audierne by SM UC-72 ( Imperial German Navy) Her crew survived.[480]
Giuseppe Maria  Italy World War I: The sailing vessel was sunk in the Strait of Sicily by SM UC-37 ( Imperial German Navy).[481]
Hurlford  United Kingdom The collier was wrecked in Gunna Sound, Scotland.[482]
Ikbal  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 200 nautical miles (370 km) west by south of the Bishop Rock (48°34′N 12°35′W) by SM U-93 ( Imperial German Navy). Her crew survived, but three of them were taken as prisoners of war.[11][483]
Mermaid  United Kingdom World War I: The schooner was scuttled in the English Channel 18 nautical miles (33 km) south south west of Anvil Point, Devon by SM UB-32 ( Imperial German Navy). Her crew survived.[484]
Petit Ernest  France World War I: The fishing vessel was scuttled in the Bay of Biscay off Guilvinec by SM UC-72 ( Imperial German Navy) with the loss of all three crew.[485]
Victoria  United Kingdom World War I: The cargo ship was torpedoed and sunk in the North Sea 5 nautical miles (9.3 km) north east by north of Scarborough, Yorkshire by SM UB-21 ( Imperial German Navy) with the loss of a crew member.[11][486]

30 April
List of shipwrecks: 30 April 1917
ShipCountryDescription
HMT Arfon  Royal Navy World War I: The naval trawler struck a mine and sank in the English Channel off St Alban's Head, Dorset (50°30′N 2°10′W) with the loss of ten of her crew.[487]
Argo  United Kingdom World War I: The trawler was shelled and sunk in the North Sea 15 nautical miles (28 km) east of Buchan Ness, Aberdeenshire by SM UB-22 ( Imperial German Navy). Her crew survived.[42][488]
Ascaro  Italy World War I: The cargo ship was sunk in the Atlantic Ocean south west of Ireland (49°10′N 11°40′W) by SM U-93 ( Imperial German Navy).[489]
Borrowdale  Russia World War I: The barque was stopped and sunk in the Atlantic Ocean south of Ireland (49°00′N 10°20′W) by SM U-21 ( Imperial German Navy). Her crew survived.[490]
Chrisomalli Th. Sifneo Greece World War I: The cargo ship was sunk in the Mediterranean Sea east of Algiers, Algeria (36°55′N 4°02′E) by SM U-33 ( Imperial German Navy). Her crew survived.[491]
Colbert  France World War I: The troopship was torpedoed and sunk in the Mediterranean Sea (37°05′N 8°22′E) by SM UC-37 ( Imperial German Navy) with the loss of 51 lives.[492]
Delamere  United Kingdom World War I: The 1,525-ton United Africa Company cargo ship was torpedoed and sunk in the Atlantic Ocean 110 nautical miles (200 km) west by north of the Fastnet Rock (51°40′N 13°00′W) by SM U-70 ( Imperial German Navy) with the loss of ten crew.[11][493]
Durley Chine  United Kingdom The 1,918-gross register ton tanker sank in 180 feet (55 m) of water in the North Atlantic Ocean east of Toms River, New Jersey, after colliding with the steamer Harlem ( United States). Her entire crew of 28 survived. Her wreck is known as the "Bacardi Wreck."[494]
Eden  Norway World War I: The cargo ship was sunk in the English Channel off Worthing, Sussex, United Kingdom (50°48′N 0°22′W) by SM UC-70 ( Imperial German Navy). Her crew survived.[495]
Fortunata  Italy World War I: The cargo ship was sunk in the Atlantic Ocean 130 nautical miles (240 km) west of the Fastnet Rock by SM U-62 ( Imperial German Navy). Her crew survived.[496]
Gorizia  Uruguay World War I: The cargo ship struck a mine and sank in the English Channel 17 nautical miles (31 km) west by north of Portland Bill, Dorset (50°36′N 2°55′W).[497]
Horsa  United Kingdom World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 195 nautical miles (361 km) south west by west of the Fastnet Rock (48°43′N 12°35′W) by SM U-93 ( Imperial German Navy) with the loss of eleven of her crew. One of the survivors was taken as a prisoner of war.[11][498]
Jarstein  Norway World War I: The sailing vessel was sunk in the North Sea 80 nautical miles (150 km) south west by west of the Egerä Lighthouse (57°35′N 4°15′E) by SM U-61 ( Imperial German Navy). Her crew survived.[499]
Kuhwarder  Imperial German Navy World War I: The Grasbrook-class Vorpostenboot was sunk by mines in Lister Deep.[500]
Little Mystery  United Kingdom World War I: The schooner was scuttled in the English Channel off Portland Bill by SM UC-61 ( Imperial German Navy). Her crew survived.[501]
Parthenon Greece World War I: The cargo ship was sunk in the Atlantic Ocean 200 nautical miles (370 km) south west of the Fastnet Rock (49°25′N 11°58′W) by SM U-93 ( Imperial German Navy).[502]
Portbail  France World War I: The coaster was sunk in the English Channel north east of Cap Barfleur, Manche (50°05′N 0°55′W) by SM UB-32 ( Imperial German Navy). Her crew survived.[503]
HMS Tulip  Royal Navy World War I: The Aubrietia-class sloop, operating as a Q-ship, was torpedoed and sunk in the Atlantic Ocean south west of Ireland by SM U-62 ( Imperial German Navy) with the loss of 102 crew. Her captain survived and was taken as a prisoner of war.[504]

Unknown date
List of shipwrecks: Unknown date 1917
ShipCountryDescription
Agia Greece World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of North Africa by SM UC-22 ( Imperial German Navy).[505]
Evangelistria Greece World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of North Africa by SM UC-22 ( Imperial German Navy).[506]
Kyriotis Greece World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of North Africa by SM UC-22 ( Imperial German Navy). Her crew survived.[507]

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  304. "Portloe". Uboat.net. Retrieved 17 October 2012.
  305. "Ringholm". Uboat.net. Retrieved 10 December 2012.
  306. "Ruthin Castle". Uboat.net. Retrieved 17 December 2012.
  307. "San Hilario". Uboat.net. Retrieved 7 October 2012.
  308. "Torr Head". Uboat.net. Retrieved 13 October 2012.
  309. "Diadem". Uboat.net. Retrieved 9 October 2012.
  310. "Emile Et Charlotte". Uboat.net. Retrieved 28 November 2012.
  311. "Gerda". Uboat.net. Retrieved 20 December 2012.
  312. "Giosue". Uboat.net. Retrieved 30 September 2012.
  313. "Jedburgh". Uboat.net. Retrieved 4 December 2012.
  314. "Peik". Uboat.net. Retrieved 15 December 2012.
  315. "Pontiac". Uboat.net. Retrieved 10 October 2012.
  316. "Sebek". Uboat.net. Retrieved 18 October 2012.
  317. "Skjold". Uboat.net. Retrieved 14 October 2012.
  318. "Telena". Uboat.net. Retrieved 14 October 2012.
  319. "Ville De Dieppe". Uboat.net. Retrieved 28 November 2012.
  320. "Warrior". Uboat.net. Retrieved 8 December 2012.
  321. "Yeovil". Uboat.net. Retrieved 4 December 2012.
  322. "Arethusa". Uboat.net. Retrieved 25 December 2012.
  323. "Blaatind". Uboat.net. Retrieved 1 October 2012.
  324. "Capenor". Uboat.net. Retrieved 29 November 2012.
  325. "Giskö". Uboat.net. Retrieved 27 September 2012.
  326. "Godø". Uboat.net. Retrieved 10 December 2012.
  327. "Maria S." Uboat.net. Retrieved 1 October 2012.
  328. "Neepawah". Uboat.net. Retrieved 10 October 2012.
  329. "Nightingale". Uboat.net. Retrieved 15 December 2012.
  330. "Percy Birdsall". Uboat.net. Retrieved 29 November 2012.
  331. "U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I". usmm.org. Retrieved 21 October 2020.
  332. "Theodore William". Uboat.net. Retrieved 27 September 2012.
  333. "Unione". Uboat.net. Retrieved 1 October 2012.
  334. "Valerie". Uboat.net. Retrieved 29 November 2012.
  335. "Vestelv". Uboat.net. Retrieved 23 October 2012.
  336. "Woodward Abrahams". Uboat.net. Retrieved 7 October 2012.
  337. "U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I". usmm.org. Retrieved 21 October 2020.
  338. "Woodward Abrahams (+1917)". Wrecksite. Retrieved 21 October 2020.
  339. "Acadian". Uboat.net. Retrieved 9 October 2012.
  340. "Auriac". Uboat.net. Retrieved 15 December 2012.
  341. "Bandiera E. Moro". Uboat.net. Retrieved 4 October 2012.
  342. "Baron Stjernblad". Uboat.net. Retrieved 15 December 2012.
  343. "Boro". Uboat.net. Retrieved 7 November 2012.
  344. "Calluna". Uboat.net. Retrieved 14 October 2012.
  345. "Cenobic". Uboat.net. Retrieved 26 December 2012.
  346. "Dykland". Uboat.net. Retrieved 9 October 2012.
  347. "Eptapyrgion". Uboat.net. Retrieved 10 October 2012.
  348. "Imataka". Uboat.net. Retrieved 16 December 2012.
  349. "Lena". Uboat.net. Retrieved 14 October 2012.
  350. "Lena Melling". Uboat.net. Retrieved 21 November 2012.
  351. "Marita". Uboat.net. Retrieved 21 October 2012.
  352. "Oswald". Uboat.net. Retrieved 9 October 2012.
  353. "HMT Rose Ii". Uboat.net. Retrieved 25 December 2012.
  354. "Savio". Uboat.net. Retrieved 7 December 2012.
  355. "Scot". Uboat.net. Retrieved 15 December 2012.
  356. "Stegg". Uboat.net. Retrieved 10 December 2012.
  357. "Svanen". Uboat.net. Retrieved 13 October 2012.
  358. "Amulree". Uboat.net. Retrieved 21 October 2012.
  359. Swedish Board of Trade: ”Svenska handelsflottans krigsförluster 1914-1920” (Swedish Merchant Marine War losses 1914-1920), Stockholm 1921, p 306-7
  360. "Anglesea". Uboat.net. Retrieved 10 October 2012.
  361. "Barnton". Uboat.net. Retrieved 29 November 2012.
  362. "Bien Aime Prof. Luigi". Uboat.net. Retrieved 4 October 2012.
  363. "Clan Galbraith". Uboat.net. Retrieved 18 October 2012.
  364. "Cordelia". Uboat.net. Retrieved 7 October 2012.
  365. "Eos". Uboat.net. Retrieved 18 October 2012.
  366. "Ferndene". Uboat.net. Retrieved 10 October 2012.
  367. "Heather". Uboat.net. Retrieved 16 December 2012.
  368. "Kenilworth". Uboat.net. Retrieved 7 December 2012.
  369. "La Providence". Uboat.net. Retrieved 7 December 2012.
  370. "Margate". Uboat.net. Retrieved 17 December 2012.
  371. "Marie Blanche". Uboat.net. Retrieved 2 November 2012.
  372. "Mayfly". Uboat.net. Retrieved 17 December 2012.
  373. "Metropolis". Uboat.net. Retrieved 14 October 2012.
  374. "Minister Tak Van Poortvliet". Uboat.net. Retrieved 28 October 2012.
  375. "Nordsøen". Uboat.net. Retrieved 4 October 2012.
  376. "Plutus". Uboat.net. Retrieved 16 December 2012.
  377. "Thistleard". Uboat.net. Retrieved 21 October 2012.
  378. "Torvore". Uboat.net. Retrieved 4 October 2012.
  379. "Upton Castle". Uboat.net. Retrieved 3 December 2012.
  380. Swedish Board of Trade: ”Svenska handelsflottans krigsförluster 1914-1920” (Swedish Merchant Marine War losses 1914-1920), Stockholm 1921, p 307-8
  381. "Valkyrian". Uboat.net. Retrieved 18 October 2012.
  382. "Vestdal". Uboat.net. Retrieved 18 October 2012.
  383. "Vilhelm Krag". Uboat.net. Retrieved 4 October 2012.
  384. "Abosso". Uboat.net. Retrieved 7 October 2012.
  385. "Baigorry". Uboat.net. Retrieved 29 November 2012.
  386. "Ballarat". Uboat.net. Retrieved 2 November 2012.
  387. "Elisabeth". Uboat.net. Retrieved 21 October 2012.
  388. "Elizabeth". Uboat.net. Retrieved 28 October 2012.
  389. "Este". Uboat.net. Retrieved 3 November 2012.
  390. "French Navy". Naval History. Retrieved 21 February 2013.
  391. "Glenesk". Uboat.net. Retrieved 21 October 2012.
  392. "Havila". Uboat.net. Retrieved 12 October 2012.
  393. "Hawthornbank". Uboat.net. Retrieved 12 October 2012.
  394. "Heathfield". Uboat.net. Retrieved 21 October 2012.
  395. "Hesperides". Uboat.net. Retrieved 18 October 2012.
  396. "Hirondelle". Uboat.net. Retrieved 7 December 2012.
  397. "Invermay". Uboat.net. Retrieved 21 October 2012.
  398. "Laura". Uboat.net. Retrieved 10 October 2012.
  399. "Hackensack". Uboat.net. Retrieved 21 October 2012.
  400. "Sokoto". Uboat.net. Retrieved 12 October 2012.
  401. "Swanmore". Uboat.net. Retrieved 9 October 2012.
  402. "Active". Uboat.net. Retrieved 17 December 2012.
  403. "Agnes Cairns". Uboat.net. Retrieved 24 December 2012.
  404. "Aigle". Uboat.net. Retrieved 16 December 2012.
  405. "Alhama". Uboat.net. Retrieved 28 October 2012.
  406. "Amsteldijk". Uboat.net. Retrieved 22 December 2012.
  407. "Athole". Uboat.net. Retrieved 24 December 2012.
  408. "Augusta". Uboat.net. Retrieved 2 December 2012.
  409. "Boy Dennis". Uboat.net. Retrieved 29 November 2012.
  410. "Bretagne Et Vendee". Uboat.net. Retrieved 7 February 2020.
  411. "Chertsey". Uboat.net. Retrieved 25 December 2012.
  412. "Ehrglis". Uboat.net. Retrieved 7 October 2012.
  413. "Gennarino". Uboat.net. Retrieved 2 December 2012.
  414. "Harflete". Uboat.net. Retrieved 18 October 2012.
  415. "Hekla". Uboat.net. Retrieved 10 October 2012.
  416. "Hektoria". Uboat.net. Retrieved 7 October 2012.
  417. "John Lockett". Uboat.net. Retrieved 16 December 2012.
  418. "Kong Oscar Ii". Uboat.net. Retrieved 5 November 2012.
  419. "Monitor". Uboat.net. Retrieved 1 October 2012.
  420. "HMD Plantin". Uboat.net. Retrieved 28 December 2012.
  421. "Repro". Uboat.net. Retrieved 10 December 2012.
  422. "Rio Lages". Uboat.net. Retrieved 18 October 2012.
  423. "Converted Fishing Vessels of WWI, Converted Merchant ships, Kaiserliche Marine (Germany)". Navypedia. Retrieved 5 October 2018.
  424. "Telefon". Uboat.net. Retrieved 17 December 2012.
  425. "Vauxhall". Uboat.net. Retrieved 18 October 2012.
  426. "Agile". Uboat.net. Retrieved 21 November 2012.
  427. "Alfalfa". Uboat.net. Retrieved 2 November 2012.
  428. "Beemah". Uboat.net. Retrieved 2 November 2012.
  429. "Burrowa". Uboat.net. Retrieved 24 December 2012.
  430. "Dromore". Uboat.net. Retrieved 12 October 2012.
  431. "Dunmore Head". Uboat.net. Retrieved 15 October 2012.
  432. "Glencluny". Uboat.net. Retrieved 25 December 2012.
  433. "Good Hope". Uboat.net. Retrieved 28 December 2012.
  434. "Inveramsay". Uboat.net. Retrieved 15 October 2012.
  435. "Jessie". Uboat.net. Retrieved 5 November 2012.
  436. "Karuma". Uboat.net. Retrieved 25 December 2012.
  437. "Langfond". Uboat.net. Retrieved 12 October 2012.
  438. "Mafalda". Uboat.net. Retrieved 1 October 2012.
  439. "Manchester Citizen". Uboat.net. Retrieved 18 October 2012.
  440. "MBR". Uboat.net. Retrieved 1 October 2012.
  441. "U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I". usmm.org. Retrieved 20 October 2020.
  442. "Margaret B. Rouss (+1917)". Wrecksite. Retrieved 20 October 2020.
  443. "Nidelven". Uboat.net. Retrieved 3 December 2012.
  444. "Ragnhild". Uboat.net. Retrieved 3 December 2012.
  445. "Uranus". Uboat.net. Retrieved 21 October 2012.
  446. "Verjø". Uboat.net. Retrieved 7 December 2012.
  447. "Alu Mendi". Uboat.net. Retrieved 24 December 2012.
  448. "Anne Marie". Uboat.net. Retrieved 18 October 2012.
  449. "Bullmouth". Uboat.net. Retrieved 12 October 2012.
  450. "Carmelo Padre". Uboat.net. Retrieved 16 October 2012.
  451. "Condor". Uboat.net. Retrieved 7 December 2012.
  452. "Diana". Uboat.net. Retrieved 23 October 2012.
  453. "Giuseppe Padre I". Uboat.net. Retrieved 16 October 2012.
  454. "Giuseppina G." Uboat.net. Retrieved 16 October 2012.
  455. "I Due Fratelli P." Uboat.net. Retrieved 16 October 2012.
  456. "Jose de Larrinaga". Uboat.net. Retrieved 21 October 2012.
  457. "Juliette". Uboat.net. Retrieved 1 December 2012.
  458. "Karonga". Uboat.net. Retrieved 16 October 2012.
  459. "Lisetta". Uboat.net. Retrieved 1 October 2012.
  460. "Natale B." Uboat.net. Retrieved 16 October 2012.
  461. "Niobe". Uboat.net. Retrieved 8 December 2012.
  462. "Olga". Uboat.net. Retrieved 8 October 2012.
  463. "Pontiac". Uboat.net. Retrieved 28 December 2012.
  464. "Port Jackson". Uboat.net. Retrieved 17 October 2012.
  465. "Pursue". Uboat.net. Retrieved 2 November 2012.
  466. "San Francesco Di Paola". Uboat.net. Retrieved 16 October 2012.
  467. "Teakwood". Uboat.net. Retrieved 30 December 2012.
  468. "Terence". Uboat.net. Retrieved 21 October 2012.
  469. "Vacuum". Uboat.net. Retrieved 7 October 2012.
  470. "U.S. Merchant Ships, Sailing Vessels, and Fishing Craft Lost from all Causes during World War I". usmm.org. Retrieved 20 October 2020.
  471. "Vacuum (+1917)". Wrecksite. Retrieved 20 October 2020.
  472. "Askepot". Uboat.net. Retrieved 27 September 2012.
  473. "Bayonnais". Uboat.net. Retrieved 28 December 2012.
  474. "Carbo I". Uboat.net. Retrieved 3 December 2012.
  475. "Comedian". Uboat.net. Retrieved 23 October 2012.
  476. "Daleby". Uboat.net. Retrieved 18 October 2012.
  477. "Dilston Castle". Uboat.net. Retrieved 31 October 2012.
  478. "Ellen Harrison". Uboat.net. Retrieved 2 November 2012.
  479. "Eugenie Et Lucie". Uboat.net. Retrieved 28 December 2012.
  480. "Frere Des Cinq Soeurs". Uboat.net. Retrieved 28 December 2012.
  481. "Giuseppe Maria". Uboat.net. Retrieved 8 December 2012.
  482. "SS Hurlford [+1917]". Wrecksite. Retrieved 2 February 2013.
  483. "Ikbal". Uboat.net. Retrieved 23 October 2012.
  484. "Mermaid". Uboat.net. Retrieved 2 November 2012.
  485. "Petit Ernest". Uboat.net. Retrieved 28 December 2012.
  486. "Victoria". Uboat.net. Retrieved 31 October 2012.
  487. "Arfon". Uboat.net. Retrieved 21 December 2012.
  488. "Argo". Uboat.net. Retrieved 31 October 2012.
  489. "Ascaro". Uboat.net. Retrieved 23 October 2012.
  490. "Borrowdale". Uboat.net. Retrieved 27 September 2012.
  491. "Chrisomalli Th. Sifneo". Uboat.net. Retrieved 1 October 2012.
  492. "Colbert". Uboat.net. Retrieved 8 December 2012.
  493. "Delamere". Uboat.net. Retrieved 18 October 2012.
  494. njscuba.net Durley Chine
  495. "Eden". Uboat.net. Retrieved 26 December 2012.
  496. "Fortunata". Uboat.net. Retrieved 15 October 2012.
  497. "Gorizia". Uboat.net. Retrieved 21 December 2012.
  498. "Horsa". Uboat.net. Retrieved 23 October 2012.
  499. "Jarstein". Uboat.net. Retrieved 14 October 2012.
  500. "Grasbrook Patrols (1916-1918), Escorts, Kaiserliche Marine (Germany)". Navypedia. Retrieved 14 September 2018.
  501. "Little Mystery". Uboat.net. Retrieved 21 December 2012.
  502. "Parthenon". Uboat.net. Retrieved 23 October 2012.
  503. "Portbail". Uboat.net. Retrieved 2 November 2012.
  504. "Tulip". Uboat.net. Retrieved 15 October 2012.
  505. "Agia". Uboat.net. Retrieved 29 November 2012.
  506. "Evangelistria". Uboat.net. Retrieved 29 November 2012.
  507. "Kyriotis". Uboat.net. Retrieved 29 November 2012.
Ship events in 1917
Ship launches: 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922
Ship commissionings: 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922
Ship decommissionings: 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922
Shipwrecks: 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922

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