List of shipwrecks in May 1918

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

May 1918
Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30	31		Unknown date

1 May

HMS Blackmorevale ( Royal Navy): World War I: The Hunt-class minesweeper struck a mine and sank in the North Sea off Tod Head, Aberdeenshire with the loss of 26 of her 74 crew.^[1]
Era ( Australia): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Cape Ténès, Algeria (36°45′N 1°56′E / 36.750°N 1.933°E / 36.750; 1.933) by SM U-32 ( Kaiserliche Marine) with the loss of twelve crew.^[2]
Matiana ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea off Tunisa, Tunisia (37°15′N 10°05′E / 37.250°N 10.083°E / 37.250; 10.083) by SM UC-27 ( Kaiserliche Marine). Her crew survived.^[3]^[4]
Nikolaos ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of Egypt (31°31′N 29°14′E / 31.517°N 29.233°E / 31.517; 29.233) by SM UC-74 ( Kaiserliche Marine).^[5]
Samsö ( Denmark): World War I: The coaster struck a mine and sank in the North Sea 3 nautical miles (5.6 km) east by south of the Roker Lighthouse, County Durham, United Kingdom. Her crew survived.^[6]
San Nicola ( Italy): World War I: The sailing vessel was sunk in the Mediterranean Sea (35°58′N 23°50′E / 35.967°N 23.833°E / 35.967; 23.833) by SM U-27 ( Austro-Hungarian Navy). Her crew survived.^[7]
Zavetni ( Imperial Russian Navy): World War I: The Boiki-class destroyer was scuttled at Sevastopol.^[8]

2 May

HMT Antares II ( Royal Navy): The naval trawler was lost on this date in the Mediterranean Sea.^[9]
Flawyl ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 30 nautical miles (56 km) east south east of Pantelleria, Italy (36°41′N 12°42′E / 36.683°N 12.700°E / 36.683; 12.700) by SM UB-52 ( Kaiserliche Marine) with the loss of a crew member.^[10]
Franklyn ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 65 nautical miles (120 km) east by north of Port Mahon, Spain (40°24′N 5°41′E / 40.400°N 5.683°E / 40.400; 5.683) by SM UB-48 ( Kaiserliche Marine). Her crew survived.^[4]^[11]
Girdleness ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in Bude Bay (50°54′N 4°41′W / 50.900°N 4.683°W / 50.900; -4.683) by SM U-60 ( Kaiserliche Marine) with the loss of two crew.^[12]
Medora ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 11 nautical miles (20 km) south west of the Mull of Galloway, Wigtownshire by SM U-86 ( Kaiserliche Marine). Her crew survived, but three of them were taken as prisoners of war.^[4]^[13]
Thorsa ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) north north west of the Pendeen Lighthouse, Cornwall (50°12′N 5°44′W / 50.200°N 5.733°W / 50.200; -5.733) by SM UB-103 ( Kaiserliche Marine). Her crew survived.^[14]
Tyler ( United States): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 65 nautical miles (120 km) east by north of Port Mahon (40°24′N 5°41′E / 40.400°N 5.683°E / 40.400; 5.683) by SM UB-48 ( Kaiserliche Marine) with the loss of eleven of her crew.^[15]
SM UB-31 ( Kaiserliche Marine): World War I: The Type UB II submarine struck a mine and sank in the Strait of Dover (51°01′N 1°16′E / 51.017°N 1.267°E / 51.017; 1.267) with the loss of all 22 crew.
Unity ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the English Channel 9 nautical miles (17 km) south east of Folkestone, Kent by SM UB-57 ( Kaiserliche Marine) with the loss of twelve of her crew.^[16]
Valdivia ( France): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 45 nautical miles (83 km) south west of Cape Spartel, Morocco (35°07′N 6°30′W / 35.117°N 6.500°W / 35.117; -6.500) by SM UB-70 ( Kaiserliche Marine) with the loss of two of her crew.^[17]

3 May

SMS G9 ( Kaiserliche Marine): World War I: The V1-class destroyer struck a mine and sank in the North Sea with the loss of 31 of her crew.^[8]
Il Francesco ( Italy): World War I: The sailing vessel was shelled and sunk in the Tyrrhenian Sea 8 nautical miles (15 km) east of Monte Santo, Sardinia (40°10′N 9°50′E / 40.167°N 9.833°E / 40.167; 9.833) by SM UC-35 ( Kaiserliche Marine).^[18]
Panaghia ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35°49′N 26°29′E / 35.817°N 26.483°E / 35.817; 26.483) by SM U-27 ( Austro-Hungarian Navy). Her crew survived.^[19]
Vasilefs Georgios ( Greece): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) north east of Pendeen, Cornwall, United Kingdom (50°13′N 5°40′W / 50.217°N 5.667°W / 50.217; -5.667) by SM UB-103 ( Kaiserliche Marine).^[20]

4 May

SMS A71 ( Kaiserliche Marine): World War I: The A56-class torpedo boat struck a mine and sank in the North Sea with the loss of six of her crew.^[8]
Polbrae ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 4.5 nautical miles (8.3 km) off Bude, Cornwall by SM U-60 ( Kaiserliche Marine) with the loss of two crew.^[4]^[21]

5 May

Aghios Johannis ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea north of Crete by SM U-33 ( Kaiserliche Marine).^[22]
Alberto Treves ( Italy): World War I: The cargo ship was damaged in the Mediterranean Sea off Cartagena, Murcia, Spain by SM U-38 ( Kaiserliche Marine) and was beached. She was subsequently refloated, repaired and returned to service.^[23]
Carrione ( Italy): World War I: The sailing vessel was shelled and sunk in the Gulf of Genoa 5 nautical miles (9.3 km) west south west of the Capo Mele Lighthouse, Liguria (43°52′N 8°30′E / 43.867°N 8.500°E / 43.867; 8.500) by SM UC-35 ( Kaiserliche Marine).^[24]
HMS David Gillies ( Royal Navy): The naval tug was lost in the Mediterranean Sea on this date.^[9]
Kyarra ( United Kingdom): World War I: The cargo liner was torpedoed and sunk in the English Channel off Swanage, Dorset by SM UB-57 ( Kaiserliche Marine) with the loss of six crew.
Petersham ( United Kingdom): The cargo ship collided with another vessel and sank.^[25]
HMS Rhododendron ( Royal Navy): World War I: The Anchusa-class sloop) was sunk in the North Sea (59°33′N 2°50′W / 59.550°N 2.833°W / 59.550; -2.833) by SM U-70 ( Kaiserliche Marine) with the loss of fifteen of her 93 crew.^[26]
Sayeda ( Egypt): World War I: The sailing vessel was sunk in the Mediterranean Sea off the coast of Egypt by SM UC-74 ( Kaiserliche Marine).^[27]
Tommi ( United Kingdom): World War I: The schooner was shelled and sunk in the Irish Sea between the Calf of Man and Chicken Rock, Isle of Man by SM U-86 ( Kaiserliche Marine) with the loss of four of her crew.^[28]
SM UB-70 ( Kaiserliche Marine): World War I: The Type UB III submarine was last reported in the Mediterranean Sea east of Gibraltar. Subsequently lost with all 33 crew.^[29]
SM UB-119 ( Kaiserliche Marine): World War I: The Type UB III submarine was rammed and sunk in the Atlantic Ocean off Rathlin Island, County Donegal, United Kingdom (55°16′N 6°24′W / 55.267°N 6.400°W / 55.267; -6.400) by Green Island (flag unknown) with the loss of all 34 crew.^[30]

6 May

Aghios Dimitrios ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35°42′N 25°25′E / 35.700°N 25.417°E / 35.700; 25.417) by SM U-27 ( Austro-Hungarian Navy). Her crew survived.^[31]
Evangelistria ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35°38′N 25°13′E / 35.633°N 25.217°E / 35.633; 25.217) by SM U-27 ( Austro-Hungarian Navy). Her crew survived.^[32]
Leeds City ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 5 nautical miles (9.3 km) east by south of the Skulmartin Lightship ( United Kingdom) by SM U-86 ( Kaiserliche Marine). Her crew survived.^[4]^[33]
Sandhurst ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 6 nautical miles (11 km) north west by west of Corsewall Point, Wigtownshire (54°58′N 5°25′W / 54.967°N 5.417°W / 54.967; -5.417) by SM UB-72 ( Kaiserliche Marine) with the loss of twenty of her crew.^[4]^[34]
Taxiarchis ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (35°38′N 25°13′E / 35.633°N 25.217°E / 35.633; 25.217) by SM U-27 ( Austro-Hungarian Navy). Her crew survived.^[35]

7 May

HM CMB-10 ( Royal Navy): The Coastal Motor Boat was lost on this date.^[9]
Nantes ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the North Sea 83 nautical miles (154 km) east south east of Fair Isle by SM U-105 ( Kaiserliche Marine). Her crew survived.^[4]^[36]
Saxon ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the North Sea 83 nautical miles (154 km) east south east of Fair Isle by SM U-105 ( Kaiserliche Marine) with the loss of 22 crew.^[4]^[37]

8 May

Constantia ( United Kingdom): World War I: The coaster was torpedoed and sunk in the North Sea 2 nautical miles (3.7 km) off Robin Hood's Bay, Yorkshire by SM UB-21 ( Kaiserliche Marine) with the loss of three of her crew.^[4]^[38]
Dux ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nautical miles (13 km) north west of the Godrevy Lighthouse, Cornwall (50°16′N 5°32′W / 50.267°N 5.533°W / 50.267; -5.533) by SM U-54 ( Kaiserliche Marine). Her crew survived.^[4]^[39]
Ingleside ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 80 nautical miles (150 km) off Algiers, Algeria by SM U-38 ( Kaiserliche Marine) with the loss of eleven crew.^[4]^[40]
Princess Dagmar ( United Kingdom): World War I: The coaster was torpedoed and sunk in the Bristol Channel by SM U-54 ( Kaiserliche Marine) with the loss of all 24 crew.^[4]^[41]
Thoralf ( Denmark): World War I: The barque was scuttled in the Irish Sea 20 nautical miles (37 km) south east of the Coningbeg Lightship ( United Kingdom) (51°56′N 5°55′W / 51.933°N 5.917°W / 51.933; -5.917) by SM UB-65 ( Kaiserliche Marine). Her crew survived.^[42]
SM U-32 ( Kaiserliche Marine):World War I: The Type U 31 submarine was depth charged and sunk in the Mediterranean Sea north west of Malta (36°07′N 13°28′E / 36.117°N 13.467°E / 36.117; 13.467) by HMS Wildflower ( Royal Navy) with the loss of all 41 crew.

9 May

Baron Ailsa ( United Kingdom): World War I: The collier was torpedoed and sunk in the Irish Sea 18 nautical miles (33 km) west north west of the Smalls Lighthouse by SM UB-72 ( Kaiserliche Marine) with the loss of ten of her crew.^[4]^[9]^[43]
Deipara ( Italy): World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Camarat, Var, France by SM UC-35 ( Kaiserliche Marine) with the loss of eight of her crew.^[44]
Enrichetta ( Italy): World War I: The cargo ship was sunk in the Atlantic Ocean (35°29′N 12°22′W / 35.483°N 12.367°W / 35.483; -12.367) by SM U-153 ( Kaiserliche Marine). Her crew survived.^[45]
SM UC-78 ( Kaiserliche Marine): World War I: The Type UC II submarine was rammed and sunk in the English Channel off Cherbourg, Manche, France by Queen Alexandra ( United Kingdom).

10 May

Amplegarth ( United Kingdom): World War I: The cargo ship struck a mine and sank in the English Channel 1 nautical mile (1.9 km) west south west of Dover, Kent. Her crew survived.^[46]
Anboto Mendi ( Spain): World War I: The cargo ship was sunk in the North Sea off Robin Hood's Bay, Yorkshire, United Kingdom by SM UB-21 ( Kaiserliche Marine).^[47]
Erich Lea ( Norway): World War I: The cargo ship was sunk in the North Sea 6 nautical miles (11 km) south east of Whitby, Yorkshire by SM UB-107 ( Kaiserliche Marine). Her crew survived.^[48]
Itinda ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 40 nautical miles (74 km) north of Matra Susa, Libya (32°24′N 21°48′E / 32.400°N 21.800°E / 32.400; 21.800) by SM U-47 ( Austro-Hungarian Navy) with the loss of a crew member.^[4]^[49]
HMML 254 ( Royal Navy): The motor launch was lost on this date.^[50]
Szechuen ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 60 nautical miles (110 km) north by east of Port Said, Egypt (32°00′N 32°46′E / 32.000°N 32.767°E / 32.000; 32.767) by SM UB-51 ( Kaiserliche Marine) with the loss of nine of her crew.^[4]^[51]
SM UB-16 ( Kaiserliche Marine): World War I: The Type UB I submarine was torpedoed and sunk in the North Sea off Harwich, Essex, United Kingdom (52°06′N 2°01′E / 52.100°N 2.017°E / 52.100; 2.017) by HMS E34 ( Royal Navy) with the loss of thirteen of her fourteen crew.
HMS Vindictive ( Royal Navy): World War I: Second Ostend Raid: The Arrogant-class cruiser was sunk as a blockship at Ostend, West Flanders, Belgium.
Wileysike ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in St. George's Channel 8 nautical miles (15 km) off St. Ann's Head, Pembrokeshire by SM U-54 ( Kaiserliche Marine) with the loss of four crew.^[4]^[52]

11 May

Clan Mackay ( United Kingdom): The 6,580 grt Clan Line vessel was in collision with an unnamed vessel in the Bay of Biscay and sank.^[53]
Gigilla ( Italy): World War I: The sailing vessel was sunk in the Strait of Messina by SM UC-52 ( Kaiserliche Marine).^[54]
Gothia ( Sweden): World War I: The cargo ship was sunk in the North Sea 8 nautical miles (15 km) north east of Hartlepool, County Durham, United Kingdom by SM UB-21 ( Kaiserliche Marine). Her crew survived.^[55]
HMT Holly III ( Royal Navy): The naval trawler was lost on this date.^[9]
Massouda ( United Kingdom): World War I: The sailing vessel was scuttled in the Mediterranean Sea 50 nautical miles (93 km) north of Marsa Matruh, Egypt by an enemy submarine.^[4]
Michail ( Russia): World War I: The fishing vessel was sunk in the Arctic Ocean 8 nautical miles (15 km) east north east of Svyatoy Nos by SM U-22 ( Kaiserliche Marine). Her crew survived.^[56]
San Andres ( Norway): World War I: The cargo ship was sunk in the Irish Sea 100 nautical miles (190 km) west of Lundy Island, Devon, United Kingdom (51°23′N 7°53′W / 51.383°N 7.883°W / 51.383; -7.883) by SM U-86 ( Kaiserliche Marine) with the loss of two of her crew.^[57]
Sant Anna ( French Navy): World War I: The troopship was sunk in the Mediterranean Sea south of Pantelleria, Italy (37°04′N 11°36′E / 37.067°N 11.600°E / 37.067; 11.600) by SM UC-54 ( Kaiserliche Marine) with the loss of 605 lives.^[57]
Suzette Fraissinet ( France): World War I: The cargo ship was sunk in the Mediterranean Sea 37 nautical miles (69 km) south of Cape Spartivento, Italy by SM UB-52 ( Kaiserliche Marine). Her crew survived.^[58]
SM U-154 ( Kaiserliche Marine): World War I: The Type U 151 submarine was torpedoed and sunk in the Atlantic Ocean (36°51′N 11°50′W / 36.850°N 11.833°W / 36.850; -11.833) by HMS E35 ( Royal Navy) with the loss of all 77 crew.
Verona ( Italy): World War I: The troopship was sunk in the Strait of Messina (37°04′N 16°19′E / 37.067°N 16.317°E / 37.067; 16.317) by SM UC-52 ( Kaiserliche Marine) with the loss of 880 lives.^[59]

12 May

Haslingden ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the North Sea 7 nautical miles (13 km) off Seaham, County Durham by SM UB-21 ( Kaiserliche Marine) with the loss of eleven of her crew.^[4]^[60]
Inniscarra ( United Kingdom): World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 10 nautical miles (19 km) south east of Ballycottin Island, County Cork by SM U-86 ( Kaiserliche Marine) with the loss of 28 of her crew.^[61]
Kong Raud ( Norway): World War I: The trawler was sunk in the Barents Sea 32 nautical miles (59 km) north east of Svyatoy Nos, Russia by SM U-22 ( Kaiserliche Marine). Her crew survived.^[62]
Omrah ( United Kingdom): World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea 40 nautical miles (74 km) south by west of Cape Spartivento, Sicily, Italy by SM UB-52 ( Kaiserliche Marine) with the loss of a crew member.^[4]^[63]
Pax ( France): World War I: The coaster was torpedoed and sunk in the Mediterranean Sea 7 nautical miles (13 km) off Cape Camarat, Var 43°08′N 6°42′E / 43.133°N 6.700°E / 43.133; 6.700 by SM UC-35 ( Kaiserliche Marine) with the loss of fifteen of her crew.^[64]
Tennes ( Norway): World War I: The trawler was sunk in the Barents Sea 20 nautical miles (37 km) north east of Svyatoy Nos by SM U-22 ( Kaiserliche Marine).^[65]
Togo ( Italy): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea (43°10′N 6°36′E / 43.167°N 6.600°E / 43.167; 6.600) by SM UC-35 ( Kaiserliche Marine) with the loss of a crew member.^[66]
SM U-103 ( Kaiserliche Marine): World War I: The Type U 57 submarine was rammed and sunk in the Atlantic Ocean (49°16′N 4°51′W / 49.267°N 4.850°W / 49.267; -4.850) by Olympic ( United Kingdom) with the loss of nine of her 40 crew. Survivors were rescued by USS Davis ( United States Navy).
SM UB-72 ( Kaiserliche Marine): World War I: The Type UB III submarine was depth charged and sunk in the English Channel (50°08′N 2°41′W / 50.133°N 2.683°W / 50.133; -2.683) by HMS D4 ( Royal Navy with the loss of 34 of her crew.^[67]
Vea ( Norway): World War I: The trawler was sunk in the Barents Sea 20 nautical miles (37 km) east north east of Svyatoy Nos by SM U-22 ( Kaiserliche Marine). Her crew survived.^[68]
Vimiera ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 16 nautical miles (30 km) west south west of Lampedusa, Italy (35°23′N 12°19′E / 35.383°N 12.317°E / 35.383; 12.317) by SM UC-54 ( Kaiserliche Marine). Her crew survived.^[4]^[69]

13 May

Agnes ( Sweden): World War I: The trawler struck a mine and sank in the Skaggerak off Skagen, Denmark with the loss of all but two of her crew.^[70]
HMT Balfour ( Royal Navy): The naval trawler collided with Nidd ( United Kingdom and sank in the English Channel 5 nautical miles (9.3 km) west south west of the Royal Sovereign Lightship ( United Kingdom). Her crew were rescued by Nidd.^[71]
Esperanza de Larrinaga ( United Kingdom): World War I: The cargo ship was torpedoed and damaged in the Irish Sea (55°49′N 7°25′W / 55.817°N 7.417°W / 55.817; -7.417) by SM UB-65 ( Kaiserliche Marine) with the loss of a crew member. She was beached in Lough Swilly.^[72]
Julia ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36°35′N 22°10′E / 36.583°N 22.167°E / 36.583; 22.167) by SM U-32 ( Austro-Hungarian Navy). Her crew survived.^[73]
HMT Loch Naver ( Royal Navy): World War I: The naval trawler struck a mine and sank in the Aegean Sea (37°50′N 24°26′E / 37.833°N 24.433°E / 37.833; 24.433) with the loss of thirteen of her crew.^[74]
SM UB-114 ( Kaiserliche Marine): The Type UB III submarine sank at Kiel, Schleswig-Holstein with the loss of seven of her crew. She was later raised.^[75]
USS Zaanland ( United States Navy): The cargo ship was rammed and sunk in the Atlantic Ocean by USS Hisko ( United States Navy). Her crew were rescued by Munalbro ( United States).

14 May

SMS A72 ( Kaiserliche Marine): World War I: The A56-class torpedo boat struck a mine and sank in the North Sea with the loss of 25 of her crew.^[8]
Embla ( Denmark): World War I: The schooner was scuttled in the North Sea south west of Skudesnes, Rogaland, Norway (57°45′N 3°30′E / 57.750°N 3.500°E / 57.750; 3.500) by SM U-101 ( Kaiserliche Marine). Her crew survived.^[76]^[77]

HMS Phoenix

HMS Phoenix ( Royal Navy): World War I: The Acheron-class destroyer was torpedoed and sunk in the Adriatic Sea off Vlorë, Albania by SM U-27 ( Austro-Hungarian Navy) with the loss of two of her 72 crew.
Stairs ( Norway): World War I: The trawler was sunk in the Barents Sea 10 nautical miles (19 km) north of Vaidaguada, Russia by SM U-22 ( Kaiserliche Marine).^[78]
Woolston ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 1.5 nautical miles (2.8 km) off Syracuse, Sicily, Italy (37°30′N 12°20′E / 37.500°N 12.333°E / 37.500; 12.333) by SM UC-52 ( Kaiserliche Marine) with the loss of nineteen of her crew.^[4]^[79]

15 May

Villa de Soller ( Spain): World War I: The coaster was sunk in the Mediterranean Sea off Hyères, Var, France by SM UC-35 ( Kaiserliche Marine). Her crew survived.^[80]
War Grange ( United Kingdom): World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean 7 nautical miles (13 km) off Town Head, Cornwall (50°28′N 5°07′W / 50.467°N 5.117°W / 50.467; -5.117) by SM U-55 ( Kaiserliche Marine) with the loss of five crew. She was beached at Newquay but was later salvaged.^[81]

16 May

Fyedor Chizhov ( Russia): World War I: The coaster was sunk in the Barents Sea off Vaidaguada by SM U-22 ( Kaiserliche Marine).^[82]
Heron Bridge ( United Kingdom): World War I: The collier was torpedoed and sunk in the Atlantic Ocean 320 nautical miles (590 km) east by north of São Miguel Island, Azores, Portugal (38°49′N 18°26′W / 38.817°N 18.433°W / 38.817; -18.433) by SM U-62 ( Kaiserliche Marine) with the loss of a crew member.^[4]^[9]^[83]
Llancarvan ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 370 nautical miles (690 km) east of São Miguel Island (38°24′N 17°18′W / 38.400°N 17.300°W / 38.400; -17.300) by SM U-62 ( Kaiserliche Marine). Her crew survived.^[4]^[84]
Mansoura ( France): World War I: The sailing vessel was sunk in the Mediterranean Sea north of Port Said, Egypt (32°15′N 31°35′E / 32.250°N 31.583°E / 32.250; 31.583) by SM UB-51 ( Kaiserliche Marine).^[85]
Marie Frédérique ( French Navy): World War I: The naval trawler struck a mine and sank in the Mediterranean Sea north of Cap de Garde, Algeria (37°02′N 7°52′E / 37.033°N 7.867°E / 37.033; 7.867) with the loss of eighteen of her crew.^[86]
Polarstrømmen ( Norway): World War I: The trawler was sunk in the Barents Sea 6 nautical miles (11 km) north of Vaidaguada, by SM U-22 ( Kaiserliche Marine). Her crew survived.^[87]
HMT Silvery Harvest ( Royal Navy): The naval trawler collided with another vessel and sank in the English Channel off Berry Head, Devon with some loss of life.^[88]
Tagona ( Canada): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 5 nautical miles (9.3 km) west south west of Trevose Head, Cornwall, United Kingdom 50°29′N 5°07′W / 50.483°N 5.117°W / 50.483; -5.117) by SM U-55 ( Kaiserliche Marine) with the loss of eight crew.^[89]
Tartary ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Irish Sea 8 nautical miles (15 km) east north east of the Skulmartin Lightship ( United Kingdom) by SM U-86 ( Kaiserliche Marine). Her crew survived.^[90]
SM UC-35 ( Kaiserliche Marine). World War I: The Type UC II submarine was shelled and sunk in the Mediterranean Sea south west of Sardinia, Italy by Ailly ( French Navy) with the loss of twenty of her 25 crew.^[91]
Yturri Bide ( Spain): World War I: The coaster was sunk in the Atlantic Ocean north east of the Tuskar Rock, Ireland (52°27′N 5°35′W / 52.450°N 5.583°W / 52.450; -5.583) by SM UB-118 ( Kaiserliche Marine).^[92]

17 May

Mavisbrook ( United Kingdom): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 50 nautical miles (93 km) south east by south of Cabo de Gata, Andalusia, Spain (36°05′N 1°35′W / 36.083°N 1.583°W / 36.083; -1.583) by SM UB-50 ( Kaiserliche Marine) with the loss of eighteen crew.^[4]^[50]^[93]
Motricine ( France): World War I: The tanker was sunk in the Atlantic Ocean 72 nautical miles (133 km) north east of Ouessant, Finistère (49°19′N 7°29′W / 49.317°N 7.483°W / 49.317; -7.483) by SM U-55 ( Kaiserliche Marine). Her captain was taken as a prisoner of war.^[94]
Pietro Brizzolari ( Italy): World War I: The sailing vessel was sunk in the Strait of Messina by SM UC-52 ( Kaiserliche Marine).^[95]
Sculptor ( United Kingdom): World War I: Convoy GB 35: The cargo ship was torpedoed and damaged in the Mediterranean Sea 60 nautical miles (110 km) north west of Oran, Algeria by SM U-39 ( Kaiserliche Marine). She was beached at Mers-el-Kebir, Libya The bow section of the ship was destroyed by an explosion during salvage operations and she was abandoned as a total loss.^[96]
SM UC-35 ( Kaiserliche Marine): World War I: The Type UC II submarine was shelled and sunk in the Mediterranean Sea south west of Sardinia, Italy (39°48′N 7°42′E / 39.800°N 7.700°E / 39.800; 7.700) by Ailly ( French Navy) with the loss of twenty of her 25 crew.^[91]

18 May

Catapulte ( French Navy): The Arquebuse-class destroyer collided with Warrimoo ( United Kingdom and sank in the Mediterranean Sea off Bône, Algeria.^[8]^[97]
HMS Chesterfield ( Royal Navy): World War I: The fleet messenger was torpedoed and sunk in the Mediterranean Sea 42 nautical miles (78 km) north east by east of Malta (36°17′N 15°13′E / 36.283°N 15.217°E / 36.283; 15.217) by SM UC-52 ( Kaiserliche Marine) with the loss of four of her crew.^[98]
Denbigh Hall ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 90 nautical miles (170 km)) west south west of the Bishop Rock, Isles of Scilly (49°00′N 8°02′W / 49.000°N 8.033°W / 49.000; -8.033) by SM U-55 ( Kaiserliche Marine). Her crew survived.^[99]
Hurunui ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the English Channel 48 nautical miles (89 km) south by east of The Lizard, Cornwall (49°08′N 5°00′W / 49.133°N 5.000°W / 49.133; -5.000) by SM U-94 ( Kaiserliche Marine) with the loss of a crew member.^[100]
John G. Mccullough ( United States): World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 8 nautical miles (15 km) south of the Île d'Yeu (46°35′N 2°16′W / 46.583°N 2.267°W / 46.583; -2.267) by SM UB-74 ( Kaiserliche Marine) with the loss of a crew member.^[101]
Mabrouka ( France): World War I: The 25-ton sailing vessel was sunk in the Mediterranean Sea north of Port Said, Egypt by SM UB-51 ( Kaiserliche Marine).^[102]
Mabrouka ( France): World War I: The 45-ton sailing vessel was sunk in the Mediterranean Sea north of Port Said by SM UB-51 ( Kaiserliche Marine).^[103]
Maria ( France): World War I: The sailing vessel was sunk in the Mediterranean Sea north of Port Said by SM UB-51 ( Kaiserliche Marine).^[104]
Menewar ( France): World War I: The sailing vessel was sunk in the Mediterranean Sea by SM UB-51 ( Kaiserliche Marine).^[105]
Ninetta ( Italy): World War I: The sailing vessel was shelled and sunk in the Mediterranean Sea 22 nautical miles (41 km) south east by south of Cape Passero, Sicily by SM UC-52 ( Kaiserliche Marine).^[4]^[106]
Scholar ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 90 nautical miles (170 km) west south west of the Bishop Rock (48°53′N 8°04′W / 48.883°N 8.067°W / 48.883; -8.067) by SM U-55 ( Kaiserliche Marine) with the loss of two crew.^[4]^[107]
Tewfig el Bari ( France): World War I: The sailing vessel was sunk in the Mediterranean Sea by SM UB-51 ( Kaiserliche Marine).^[108]
USS William Rockefeller ( United States Navy): World War I: The tanker was sunk in the North Sea off Kinnaird Head, Aberdeenshire, United Kingdom (57°44′N 1°23′W / 57.733°N 1.383°W / 57.733; -1.383) by SM UC-58 ( Kaiserliche Marine) with the loss of three of her crew.^[109]

19 May

Forsøk ( Norway): World War I: The trawler was sunk in the Barents Sea south west of Cape Kanin Nos Russia by SM U-22 ( Kaiserliche Marine). Her crew survived.^[110]
Kirstin Jensen ( Denmark): World War I: The schooner was shelled and sunk in the Mediterranean Sea 40 nautical miles (74 km) off Cape Palos, Murcia, Spain by SM UB-50 ( Kaiserliche Marine). Her crew survived.^[111]
Snowdon ( United Kingdom): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 84 nautical miles (156 km) south of Malta by SM U-63 ( Kaiserliche Marine) with the loss of two crew.^[4]^[50]^[112]
Water Witch ( United Kingdom): The schooner ran aground in the Strait of Gibraltar and sank.^[113]

20 May

Agios Dionysios ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36°39′N 22°18′E / 36.650°N 22.300°E / 36.650; 22.300) by SM U-32 ( Austro-Hungarian Navy). Her crew survived.^[31]
Angeliki ( Greece): World War I: The sailing vessel was sunk in the Mediterranean Sea (36°39′N 22°18′E / 36.650°N 22.300°E / 36.650; 22.300) by SM U-32 ( Austro-Hungarian Navy). Her crew survived.^[114]
Khariton Leptev ( Russia): World War I: The auxiliary brigantine was sunk in the Barents Sea off Murmansk by SM U-22 ( Kaiserliche Marine).^[115]
New Sweden ( Sweden): World War I: Convoy GaG 24: The cargo ship was sunk in the Mediterranean Sea 20 nautical miles (37 km) off the Sabinal Lighthouse, Spain (36°24′N 2°40′W / 36.400°N 2.667°W / 36.400; -2.667) by SM UB-50 ( Kaiserliche Marine). Her crew survived.^[116]

21 May

Chatham ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 80 nautical miles (150 km) south west of Cape Matapan, Greece (34°51′N 21°34′E / 34.850°N 21.567°E / 34.850; 21.567) by SM U-32 ( Austro-Hungarian Navy). Her crew survived.^[4]^[117]

22 May

Meran ( Norway): World War I: The sailing vessel was sunk in the North Sea off Songvår, Vest-Agder by SM U-86 ( Kaiserliche Marine). Her crew survived.^[118]
Red Rose ( United Kingdom): World War I: The coaster was sunk in the English Channel approximately 30 nautical miles (56 km) north of Cap d'Antifer, Seine-Maritime, France (50°04′N 0°20′W / 50.067°N 0.333°W / 50.067; -0.333) by SM UB-57 ( Kaiserliche Marine) with the loss of eleven of her crew.^[119]

23 May

Innisfallen ( United Kingdom): World War I: The passenger ship was torpedoed and sunk in the Irish Sea 16 nautical miles (30 km) east by north of the Kish Lightship ( United Kingdom) (53°26′N 5°21′W / 53.433°N 5.350°W / 53.433; -5.350) by SM UB-64 ( Kaiserliche Marine) with the loss of ten lives.^[4]^[120]
Mefjord ( Norway): World War I: The coaster was torpedoed and sunk in the Atlantic Ocean off Trevose Head, Cornwall, United Kingdom (50°28′N 5°11′W / 50.467°N 5.183°W / 50.467; -5.183) by SM UC-64 ( Kaiserliche Marine). Her crew survived.^[121]
HMS Moldavia ( Royal Navy): World War I: The armed merchant cruiser, operating as a troopship, was torpedoed and sunk in the English Channel off Beachy Head, East Sussex (50°24′N 0°26′W / 50.400°N 0.433°W / 50.400; -0.433) by SM UB-57 ( Kaiserliche Marine) with the loss of 56 lives.
Skaraas ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 1 nautical mile (1.9 km) off Black Head, Cornwall (49°59′N 5°06′W / 49.983°N 5.100°W / 49.983; -5.100) by SM UB-74 ( Kaiserliche Marine) with the loss of nineteen of her crew.^[122]
SM UB-52 ( Kaiserliche Marine): World War I: The Type UB III submarine was torpedoed and sunk in the Strait of Otranto (41°36′N 18°52′E / 41.600°N 18.867°E / 41.600; 18.867) by HMS H4 ( Royal Navy) with the loss of 32 of her 34 crew.^[123]

24 May

HMT Gabir ( Royal Navy): World War I: The naval trawler struck a mine and sank in the North Sea of Pakefield, Suffolk with the loss of two of her crew.^[124]
Ruth Hickman ( United Kingdom): World War I: The schooner was scuttled in the Atlantic Ocean 60 nautical miles (110 km) north north west of Graciosa, Azores, Portugal (40°05′N 28°30′W / 40.083°N 28.500°W / 40.083; -28.500) by SM U-62 ( Kaiserliche Marine). Her crew survived.^[125]
HMT Yucca ( Royal Navy): World War I: The naval trawler struck a min and sank in the North Sea off Pakefield (52°26′N 1°48′E / 52.433°N 1.800°E / 52.433; 1.800 with the loss of seven of her crew. by SM UC-17 ( Kaiserliche Marine). Her crew survived.^[126]

25 May

Amiral Lafont ( France): World War I: The auxiliary sailing vessel was sunk in the Mediterranean Sea north of the Isla de Alborán, Spain (36°31′N 2°27′W / 36.517°N 2.450°W / 36.517; -2.450) by SM UB-50 ( Kaiserliche Marine).^[127]
Hattie Dunn ( United States): World War I: The three-masted schooner was scuttled in the Atlantic Ocean (37°40′N 74°58′W / 37.667°N 74.967°W / 37.667; -74.967) by SM U-151 ( Kaiserliche Marine). Her crew survived.^[128]
Santa Teresa ( Italy): World War I: The sailing vessel was scuttled in the Mediterranea Sea north of the Isla de Alborán (36°30′N 2°43′W / 36.500°N 2.717°W / 36.500; -2.717) by SM UB-50 ( Kaiserliche Marine).^[129]
Saphir ( Norway): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 1.5 nautical miles (2.8 km) north north west of Trevose Head, Cornwall, United Kingdom by SM U-94 ( Kaiserliche Marine). Her crew survived.^[130]

26 May

HMT Clara & Alice ( Royal Navy): The naval trawler was lost on this date.^[9]
Dayspring ( United Kingdom): World War I: The fishing smack was shelled andsunk in the North Sea off the coast of Norfolk by SM UB-40 ( Kaiserliche Marine). Her crew survived.^[131]^[132]
Eclipse ( United Kingdom): World War I: The fishing smack was shelled and sunk in the North Sea off the coast of Norfolk by SM UB-40 ( Kaiserliche Marine). Her crew survived.^[132]^[133]
Fortuna ( United Kingdom): World War I: The fishing smack was scuttled in the North Sea off the coast of Norfolk by SM UB-40 ( Kaiserliche Marine). Her crew survived.^[132]^[134]
Janvold ( Norway): World War I: The cargo ship was sunk in the Irish Sea 28 nautical miles (52 km) north west of Bardsey Island, Pembrokeshire by SM U-98 ( Kaiserliche Marine) with the loss of four crew.^[135]
Kyarra ( United Kingdom): World War I: The passenger ship was sunk in the English Channel 2 nautical miles (3.7 km) south south east of Anvil Point, Dorset by SM UB-57 ( Kaiserliche Marine) with the loss of six of her crew.^[136]
Le Gard ( France): World War I: The passenger ship was torpedoed and sunk in the Mediterranean Sea 88 nautical miles (163 km) north west of Cape Bengut, Algeria by SM UB-49 ( Kaiserliche Marine) with the loss of fourteen lives.^[137]
Princess Royal ( United Kingdom): World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 3 nautical miles (5.6 km) west north west of St. Agnes, Cornwall (50°19′24″N 5°19′54″W / 50.32333°N 5.33167°W / 50.32333; -5.33167) by SM U-101 ( Kaiserliche Marine) with the loss of nineteen crew.^[138]
Thames ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the North Sea 6 nautical miles (11 km) south east by east of Seaham, County Durham by SM UC-17 ( Kaiserliche Marine) with the loss of four of her crew.^[4]^[139]
SM UB-74 ( Kaiserliche Marine): World War I: The Type UB III submarine was depth charged and sunk in Lyme Bay (50°32′N 2°32′W / 50.533°N 2.533°W / 50.533; -2.533) by HMY Lorna ( Royal Navy) with the loss of all 35 crew.^[140]

27 May

Carmela ( Italy): World War I: The brigantine was sunk in the Mediterranean Sea 80 nautical miles (150 km) south east of Formentera, Spain by SM UB-49 ( Kaiserliche Marine).^[141]
Carskey ( United Kingdom): The ketch sprang a leak and foundered. Her crew were rescued.^[142]
Forto ( Norway): The cargo ship collided with another vessel and sank. Her crew were rescued.^[142]
Joseph Simone ( France): World War I: The fishing vessel was sunk in the English Channel north west of Fécamp, Seine-Maritime by SM UB-57 ( Kaiserliche Marine).^[143]
Leasowe Castle ( United Kingdom): World War I: The troopship was torpedoed and sunk in the Mediterranean Sea 104 nautical miles (193 km) west by north of Alexandria, Egypt (31°30′N 27°56′E / 31.500°N 27.933°E / 31.500; 27.933) by SM UB-51 ( Kaiserliche Marine) with the loss of 101 lives.^[4]^[144]
Merionethshire ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 120 nautical miles (220 km) north of the Azores, Portugal by SM U-62 ( Kaiserliche Marine). Her crew survived.^[145]
Molière ( France): World War I: The cargo ship was sunk in the Atlantic Ocean 1 nautical mile (1.9 km) off Hartland Point, Devon, United Kingdom by SM U-101 ( Kaiserliche Marine) with the loss of twelve crew.^[146]
Petit Georges ( France): World War I: the fishing vessel was sunk in the English Channel north west of Fécamp (49°53′N 0°15′E / 49.883°N 0.250°E / 49.883; 0.250) by SM UB-57 ( Kaiserliche Marine).^[147]
Souvenir de Ste Marie ( France): World War I: The fishing vessel was sunk in the English Channel north west of Fècamp by SM UB-57 ( Kaiserliche Marine).^[148]
Uganda ( United Kingdom): World War I: Convoy GaG28: The cargo liner was torpedoed and damaged in the Mediterranean Sea 90 nautical miles (170 km) north east of Algiers, Algeria (38°16′N 3°30′E / 38.267°N 3.500°E / 38.267; 3.500) by SM UB-49 ( Kaiserliche Marine). She sank on 29 May 40 nautical miles (74 km) north east of Algiers. Her crew survived.^[149]^[150]^[151]
Wayside Flower ( United Kingdom): World War I: The vessel was scuttled in the North Sea 20 nautical miles (37 km) north east by north of the mouth of the Humber by SM UC-70 ( Kaiserliche Marine).^[132]^[152]

28 May

Cairnross ( 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 Flores Island, Azores by SM U-62 ( Kaiserliche Marine). Her crew survived.^[4]^[153]
Coronation ( United Kingdom): World War I: The fishing vessel was scuttled in the North Sea 13 nautical miles (24 km) east south east of Flamborough Head, Yorkshire by SM UC-70 ( Kaiserliche Marine.^[132]^[154]
Dronning Margrethe ( Denmark): World War I: The coaster was sunk in the North Sea 140 kilometres (76 nmi) east of Dundee, Forfarshire, United Kingdom (56°30′N 1°54′E / 56.500°N 1.900°E / 56.500; 1.900) by SM U-111 ( Kaiserliche Marine). Her crew survived.^[155]
Flora ( France): World War I: The sailing vessel was scuttled in the Atlantic Ocean 2 nautical miles (3.7 km) off Tintagel, Cornwall, United Kingdom (50°46′N 4°41′W / 50.767°N 4.683°W / 50.767; -4.683) by SM U-101 ( Kaiserliche Marine).^[156]

29 May

Begum ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 270 nautical miles (500 km) west by south of the Bishop Rock, Isles of Scilly (47°30′N 12°28′W / 47.500°N 12.467°W / 47.500; -12.467) by SM U-90 ( Kaiserliche Marine) with the loss of fifteen of her crew.^[4]^[157]
Carlton ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 270 nautical miles (500 km) west by south of the Bishop Rock by SM U-90 ( Kaiserliche Marine). Her crew survived.^[4]^[158]
HMT Dirk ( Royal Navy): World War I, The coaster, operating as a naval trawler, was torpedoed and sunk in the North Sea off Flamborough Head, Yorkshire (54°08′N 0°11′E / 54.133°N 0.183°E / 54.133; 0.183) by SM UC-75 ( Kaiserliche Marine) with the loss of twenty of her crew.^[159]
Missir ( United Kingdom): World War I: The coaster was torpedoed and sunk in the Mediterranean Sea 80 nautical miles (150 km) west by north of Alexandria, Egypt by SM UB-51 ( Kaiserliche Marine) with the loss of 34 crew.^[4]^[160]
Souvenir ( Denmark): World War I: The barque was shelled and sunk in the Atlantic Ocean (51°47′N 7°46′W / 51.783°N 7.767°W / 51.783; -7.767) by SM U-101 ( Kaiserliche Marine). Her crew survived.^[161]

30 May

Asiatic Prince ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 190 nautical miles (350 km) east by south of Malta by SM U-63 ( Kaiserliche Marine). Her crew survived.^[4]^[162]
Ausonia ( United Kingdom): World War I: The passenger ship was torpedoed and sunk in the Atlantic Ocean 620 nautical miles (1,150 km) west south west of the Fastnet Rock (47°59′N 23°42′W / 47.983°N 23.700°W / 47.983; -23.700) by SM U-62 ( Kaiserliche Marine) with the loss of 44 crew.^[4]^[163]
Aymeric ( United Kingdom): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 145 nautical miles (269 km) souht west by west of Cape Matapan, Greece (34°53′N 20°15′E / 34.883°N 20.250°E / 34.883; 20.250) by SM U-63 ( Kaiserliche Marine). Her crew survived.^[4]^[164]
Cyprus ( Isle of Man): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[165]
Glad Tidings ( Isle of Man): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[166]
Honey Bee ( United Kingdom): World War I: The fishing vessel was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[83]^[132]
Jane Gordon ( United Kingdom): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[167]
Lloyd ( Isle of Man): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[168]
Marianne McCrum ( United Kingdom): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[169]
Never Can Tell ( United Kingdom): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[170]
Pietro Maroncelli ( Italy): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea west of Sardinia (40°48′N 8°00′E / 40.800°N 8.000°E / 40.800; 8.000) by SM UB-49 ( Kaiserliche Marine). Her crew survived.^[171]
Seabird ( United Kingdom): World War I: The fishing vessel was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[172]
Sparkling Wave ( United Kingdom): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[173]
St. Mary ( United Kingdom): World War I: The fishing smack was scuttled in the Irish Sea 26 nautical miles (48 km) west north west of the Calf of Man by SM UB-64 ( Kaiserliche Marine). Her crew survived.^[132]^[174]
Waneta ( United Kingdom): World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 42 nautical miles (78 km) south south east of the Old Head of Kinsale, County Cork by SM U-101 ( Kaiserliche Marine) with the loss of eight crew.^[4]^[50]^[175]

31 May

Alert ( United Kingdom): World War I: The sailing vessel was scuttled in the North Sea 6 nautical miles (11 km) north east of Boulmer, Northumberland by SM UB-40 ( Kaiserliche Marine).^[4]^[176]
Attila ( United Kingdom): The brig caught fire at Itaporã, Brazil. She was beached but was a total loss.^[177]
HMS Fairy ( Royal Navy): World War I: The Gipsy-class destroyer foundered in the North Sea off Flamborough Head, Yorkshire after ramming and sinking SM UC-75 ( Kaiserliche Marine).

USS President Lincoln

USS President Lincoln ( United States Navy): World War I: The troopship was torpedoed and sunk in the Atlantic Ocean 600 nautical miles (1,100 km) off Brest, Finistère, France by SM U-90 ( Kaiserliche Marine) with the loss of 26 of the 715 people on board. Survivors were rescued by USS Smith and USS Warrington (both United States Navy).
Pretty Polly ( United Kingdom): World War I: The fishing smack was shelled and sunk in the Atlantic Ocean off the coast of County Galway, Ireland by SM U-101 ( Kaiserliche Marine) with the loss of seven crew.^[178]
SM UC-75 ( Kaiserliche Marine): World War I: The Type UC II submarine was rammed and sunk in the North Sea off Flamborough Head by Blaydonian ( United Kingdom and HMS Fairy ( Royal Navy).

Unknown date

HNLMS Frans Naerebont ( Royal Netherlands Navy): The minesweeper struck a mine and sank in the North Sea off Terschelling, Friesland in early May with the loss of at least five of her nineteen crew.^[179]

References

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↑ "Snowdon". Uboat.net. Retrieved 16 October 2012.
↑ "Shipping Casualty." The Times (London). Wednesday, 5 June 1918. (41808), col B, p. 12.
↑ "Angeliki". Uboat.net. Retrieved 31 December 2012.
↑ "Hertha". Uboat.net. Retrieved 27 September 2012.
↑ "New Sweden". Uboat.net. Retrieved 9 November 2012.
↑ "Chatham". Uboat.net. Retrieved 31 December 2012.
↑ "Meran". Uboat.net. Retrieved 22 October 2012.
↑ "Red Rose". Uboat.net. Retrieved 10 November 2012.
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↑ "Mefjord". Uboat.net. Retrieved 23 December 2012.
↑ "Skaraas". Uboat.net. Retrieved 12 November 2012.
↑ "UB 52". Uboat.net. Retrieved 10 November 2012.
↑ "HMT Gabir". Uboat.net. Retrieved 25 November 2012.
↑ "Ruth Hickman". Uboat.net. Retrieved 15 October 2012.
↑ "Yucca". Uboat.net. Retrieved 25 November 2012.
↑ "Amiral Lafont". Uboat.net. Retrieved 9 November 2012.
↑ "Hattie Dunn". Uboat.net. Retrieved 26 October 2012.
↑ "Santa Teresa". Uboat.net. Retrieved 9 November 2012.
↑ "Saphir". Uboat.net. Retrieved 24 October 2012.
↑ "Dayspring". Uboat.net. Retrieved 6 November 2012.
↑ 132.0 132.1 132.2 132.3 132.4 132.5 132.6 132.7 132.8 132.9 132.10 132.11 132.12 132.13 132.14 "BRITISH FISHING VESSELS LOST to ENEMY ACTION Part 2 of 2 - Years 1917, 1918 in date order". Naval History. Retrieved 2 February 2013.
↑ "Eclipse". Uboat.net. Retrieved 6 November 2012.
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↑ "Janvold". Uboat.net. Retrieved 24 October 2012.
↑ "Kyarra". Uboat.net. Retrieved 10 November 2012.
↑ "Le Gard". Uboat.net. Retrieved 9 November 2012.
↑ "Princess Royal". Uboat.net. Retrieved 25 October 2012.
↑ "Thames". Uboat.net. Retrieved 25 November 2012.
↑ "UB 74". Uboat.net. Retrieved 12 November 2012.
↑ "Carmela". Uboat.net. Retrieved 9 November 2012.
↑ 142.0 142.1 "Shipping Casualties." The Times (London). Tuesday, 28 May 1918. (41801), col F, p. 10.
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↑ "Leasowe Castle". Uboat.net. Retrieved 10 November 2012.
↑ "Merionethshire". Uboat.net. Retrieved 15 October 2012.
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↑ "Petit Georges". Uboat.net. Retrieved 10 November 2012.
↑ "Souvenir De Ste Marie". Uboat.net. Retrieved 10 November 2012.
↑ "Cythera". Dictionary of American Naval Fighting Ships. Navy Department, Naval History & Heritage Command. Retrieved 2 May 2012.
↑ "Uganda (1108721)". Miramar Ship Index. Retrieved 2 May 2012. (subscription required (help)).
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↑ "Lloyd". Uboat.net. Retrieved 11 November 2012.
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↑ "Never Can Tell". Uboat.net. Retrieved 11 November 2012.
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↑ "Seabird". Uboat.net. Retrieved 11 November 2012.
↑ "Sparkling Wave". Uboat.net. Retrieved 11 November 2012.
↑ "St. Mary". Uboat.net. Retrieved 11 November 2012.
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↑ "Alert". Uboat.net. Retrieved 6 November 2012.
↑ "Shipping Casualty." The Times (London). Monday, 3 June 1918. (41806), col C, p. 12.
↑ "Pretty Polly". Uboat.net. Retrieved 25 October 2012.
↑ "Imperial and Foreign news items." The Times (London). Saturday, 4 May 1918. (41781), col E, p. 5.

Shipwrecks 1914–18, by month

1914	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1915	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1916	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1917	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

1918	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Unknown date

Ship events in 1918
Ship launches:	1913	1914	1915	1916	1917	1918	1919	1920	1921	1922	1923
Ship commissionings:	1913	1914	1915	1916	1917	1918	1919	1920	1921	1922	1923
Ship decommissionings:	1913	1914	1915	1916	1917	1918	1919	1920	1921	1922	1923
Shipwrecks:	1913	1914	1915	1916	1917	1918	1919	1920	1921	1922	1923