# List of shipwrecks in June 1917

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

## 1 June

List of shipwrecks: 1 June 1917 :
| Ship | State | Description |
| Cavina | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 45 nautical miles (83 km) west by south of the Fastnet Rock (50°56′N 10°35′W﻿ / ﻿50.933°N 10.583°W﻿ / 50.933; -10.583) by SM U-88 ( Imperial German Navy). Her crew survived. |
| Domenico Miscuraca | Italy | World War I: The barquentine was shelled and sunk in the Mediterranean Sea west of Sicily (37°38′N 12°07′E﻿ / ﻿37.633°N 12.117°E﻿ / 37.633; 12.117) by SM UC-25 ( Imperial German Navy). |
| Teal | United Kingdom | World War I: The trawler was shelled and sunk in the Atlantic Ocean 57 nautical miles (106 km) north west by north of Skule Skerry (59°13′N 4°16′W﻿ / ﻿59.217°N 4.267°W﻿ / 59.217; -4.267) by SM U-57 ( Imperial German Navy). Her crew survived. |
| Vittoria | Italy | World War I: The brigantine was shelled and sunk in the Mediterranean Sea west of Sicily (37°05′N 12°07′E﻿ / ﻿37.083°N 12.117°E﻿ / 37.083; 12.117) by SM UC-25 ( Imperial German Navy). |

## 2 June

List of shipwrecks: 2 June 1917 :
| Ship | State | Description |
| Cameronian | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 50 nautical miles (93 km) north west by north of Alexandria, Egypt (31°53′N 29°19′E﻿ / ﻿31.883°N 29.317°E﻿ / 31.883; 29.317) by SM UC-34 ( Imperial German Navy) with the loss of 42 lives (or 43 lost - 11 crew + 32 soldiers). |
| Eliofilo | Italy | World War I: The cargo ship was sunk in the Atlantic Ocean off Ouessant, Finistère, France (48°27′N 8°31′W﻿ / ﻿48.450°N 8.517°W﻿ / 48.450; -8.517) by SM U-87 ( Imperial German Navy). Her crew survived. |
| Ereaga | Spain | World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay off Mimizan, Landes, France by SM UC-72 ( Imperial German Navy). Her crew survived. |
| Harfursfjord | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean south of Iceland (60°25′N 16°20′W﻿ / ﻿60.417°N 16.333°W﻿ / 60.417; -16.333) by SM U-155 ( Imperial German Navy). Her crew survived. |
| Prudence | United Kingdom | World War I: The fishing smack was shelled and sunk in the Atlantic Ocean 15 nautical miles (28 km) west south west of the Eddystone Lighthouse by SM UB-23 ( Imperial German Navy). Her crew survived. |
| Shamrock | United Kingdom | World War I: The trawler was shelled and sunk in the Atlantic Ocean 66 nautical miles (122 km) north east of Sule Skerry by SM U-96 ( Imperial German Navy). Her crew survived. |
| Skarpsno | Norway | World War I: The cargo ship was sunk in the Bay of Biscay (44°18′N 3°50′W﻿ / ﻿44.300°N 3.833°W﻿ / 44.300; -3.833) by SM UC-72 ( Imperial German Navy) with the loss of seventeen of her crew. |
| St. Bernard | United Kingdom | World War I: The trawler was shelled and sunk in the Atlantic Ocean 65 nautical miles (120 km) north by west of Noup Head, Orkney Islands by SM U-96 ( Imperial German Navy). Her crew survived. |
| St. Sunniva | Norway | World War I: The cargo ship struck a mine and sank in the Bay of Biscay off Saint-Jean-de-Luz, Basses-Pyrénées, France (43°26′N 1°41′W﻿ / ﻿43.433°N 1.683°W﻿ / 43.433; -1.683) with the loss of four of her crew. |
| Wairuna | United Kingdom | World War I: The cargo ship was scuttled in the Pacific Ocean off Raoul Island, New Zealand by SMS Wolf ( Imperial German Navy). |

## 3 June

List of shipwrecks: 3 June 1917 :
| Ship | State | Description |
| Elisabeth | France | World War I: The barque was scuttled in the English Channel 20 nautical miles (37 km) south of The Lizard, Cornwall, United Kingdom (49°45′N 5°05′W﻿ / ﻿49.750°N 5.083°W﻿ / 49.750; -5.083) by SM UC-29 ( Imperial German Navy). Her crew survived. |
| HMT George V | Royal Navy | The naval trawler was lost on this date. |
| Giralda | United Kingdom | World War I: The fishing smack struck a mine and sank in the North Sea. Her crew survived. |
| Greenbank | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 12 nautical miles (22 km) north of Cape Falcon, Algeria (36°05′N 1°04′W﻿ / ﻿36.083°N 1.067°W﻿ / 36.083; -1.067) by SM U-33 ( Imperial German Navy) with the loss of a crew member. |
| Hollington | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 14 nautical miles (26 km) south of the Faroe Islands by SM U-95 ( Imperial German Navy) with the loss of 30 of her crew. |
| Islandmore | United Kingdom | World War I: The collier was shelled and sunk in the Mediterranean Sea 20 nautical miles (37 km) north west of Cape Falcon (35°52′N 1°09′W﻿ / ﻿35.867°N 1.150°W﻿ / 35.867; -1.150) by SM U-33 ( Imperial German Navy) with the loss of two crew. |
| Manin B. | Italy | World War I: The barque was scuttled in the Mediterranean Sea 54 nautical miles (100 km) off Cabo Creux (42°19′N 4°28′E﻿ / ﻿42.317°N 4.467°E﻿ / 42.317; 4.467) by SM U-72 ( Imperial German Navy). |
| Merioneth | United Kingdom | World War I: The cargo ship was shelled and sunk in the Norwegian Sea 105 nautical miles (194 km) west by north of Tromsø, Norway (71°20′N 16°20′E﻿ / ﻿71.333°N 16.333°E﻿ / 71.333; 16.333) by SM U-28 ( Imperial German Navy). Her crew survived. |
| Petronella Madre | Italy | World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-39 ( Imperial German Navy). |
| Portofino | Italy | World War I: The cargo ship was sunk in the Atlantic Ocean 3 nautical miles (5.6 km) east by north of the Pendeen Lighthouse, Cornwall by SM UC-66 ( Imperial German Navy) with the loss of three of her crew. |
| Rosario | Uruguay | World War I: The barque was scuttled in the Bay of Biscay 80 nautical miles (150 km) off the mouth of the Gironde by SM UC-72 ( Imperial German Navy). |
| Sten II | Russia | World War I: The coaster was scuttled in the Gulf of Bothnia by SM UC-58 ( Imperial German Navy). |
| Virgilia | United Kingdom | World War I: The trawler was scuttled in the North Sea 5 nautical miles (9.3 km) east of Girdle Ness, Aberdeenshire (57°10′N 1°51′W﻿ / ﻿57.167°N 1.850°W﻿ / 57.167; -1.850) by SM UC-77 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war. |
| Vulcanus | France | World War I: The cargo ship was sunk in the Mediterranean Sea off Cape Rizzutto, Italy (37°47′N 17°47′E﻿ / ﻿37.783°N 17.783°E﻿ / 37.783; 17.783) by SM U-47 ( Imperial German Navy). Her crew survived. |

## 4 June

List of shipwrecks: 4 June 1917 :
| Ship | State | Description |
| Algol | Russia | World War I: The cargo ship was sunk in the Barents Sea 70 nautical miles (130 km) north of the North Cape, Norway (71°30′N 26°00′E﻿ / ﻿71.500°N 26.000°E﻿ / 71.500; 26.000) by SM U-28 ( Imperial German Navy). |
| City of Baroda | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 90 nautical miles (170 km) north west by west of Tory Island, County Donegal (56°00′N 10°20′W﻿ / ﻿56.000°N 10.333°W﻿ / 56.000; -10.333) by SM UC-53 ( Imperial German Navy). Her crew survived. |
| Clara | Sweden | World War I: The barque was scuttled in the North Sea 70 nautical miles (130 km) north of Foula, Shetland Islands, United Kingdom by SM UC-55 ( Imperial German Navy). Her crew survived. |
| Juno | Norway | World War I: The barque was shelled and sunk in the North Sea north east of the Shetland Islands, United Kingdom 60°30′N 0°45′W﻿ / ﻿60.500°N 0.750°W﻿ / 60.500; -0.750) by SM U-43 ( Imperial German Navy). Her crew survived. |
| SMS M23 | Imperial German Navy | World War I: The M1-class minesweeper was sunk by mines in the North Sea. |
| Manchester Trader | United Kingdom | The cargo ship was shelled and sunk in the Mediterranean Sea 8 nautical miles (15 km) off Pantelleria, Italy (36°58′N 12°36′E﻿ / ﻿36.967°N 12.600°E﻿ / 36.967; 12.600) by SM U-65 ( Imperial German Navy) with the loss of a crew member. One of the survivors was taken as a prisoner of war. |
| Orion | Denmark | World War I: The cargo ship was sunk in the Atlantic Ocean north of the Shetland Islands, United Kingdom (62°14′N 1°02′E﻿ / ﻿62.233°N 1.033°E﻿ / 62.233; 1.033) by SM U-71 ( Imperial German Navy). Her crew survived. |
| Phemius | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) north west of Eagle Island, County Mayo (54°56′N 12°07′W﻿ / ﻿54.933°N 12.117°W﻿ / 54.933; -12.117 by SM UC-45 ( Imperial German Navy). Her crew survived. |
| HMT Southland | United Kingdom | World War I: The troopship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) off Tory Island, County Donegal (56°10′N 12°14′W﻿ / ﻿56.167°N 12.233°W﻿ / 56.167; -12.233)by SM U-70 ( Imperial German Navy) with the loss of 4 lives. |
| Songelv | Norway | World War I: The full-rigged ship was sunk in the Atlantic Ocean 80 to 90 nautical miles (150 to 170 km) south west by west of the Bishop Rock, Isles of Scilly, United Kingdom by SM UC-29 ( Imperial German Navy). Her crew survived. |
| SMS Wildfang | Austro-Hungarian Navy | World War I: The Huszár-class destroyer struck a mine and sank in the Adriatic Sea off Brijuni. |

## 5 June

List of shipwrecks: 5 June 1917 :
| Ship | State | Description |
| Alaska | Norway | World War I: The fishing vessel was sunk in the Barents Sea 30 nautical miles (56 km) north east of Vardø, Finnmark (71°25′N 35°49′E﻿ / ﻿71.417°N 35.817°E﻿ / 71.417; 35.817) by SM U-28 ( Imperial German Navy). |
| Amor | Italy | World War I: The cargo ship was sunk in the Atlantic Ocean 200 nautical miles (370 km) north west of the Fastnet Rock (52°44′N 13°42′W﻿ / ﻿52.733°N 13.700°W﻿ / 52.733; -13.700) by SM U-66 ( Imperial German Navy). |
| C. Thorén | Sweden | World War I: The barquentine was sunk in the North Sea (61°13′N 2°43′E﻿ / ﻿61.217°N 2.717°E﻿ / 61.217; 2.717) by SM U-71 ( Imperial German Navy). Her crew survived. |
| Duen | Norway | World War I: The fishing vessel was sunk in the Barents Sea north of Vardø by SM U-28 ( Imperial German Navy). |
| Götha | Sweden | World War I: The barquentine was sunk in the North Sea (61°13′N 2°43′E﻿ / ﻿61.217°N 2.717°E﻿ / 61.217; 2.717) by SM U-71 ( Imperial German Navy). Her crew survived. |
| Laura Ann | United Kingdom | World War I: The schooner was shelled and sunk in the English Channel 20 nautical miles (37 km) south south east of Beachy Head, Sussex by SM UB-23 ( Imperial German Navy) with the loss of a crew member. |
| Kallundborg | United Kingdom | World War I: The cargo ship was scuttled in the Mediterranean Sea 80 nautical miles (150 km) south south west of Toulon, Var, France (42°58′N 5°38′E﻿ / ﻿42.967°N 5.633°E﻿ / 42.967; 5.633) by SM U-64 ( Imperial German Navy) with the loss of a crew member. |
| Manchester Miller | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 190 nautical miles (350 km) north west of the Fastnet Rock (52°49′N 14°07′W﻿ / ﻿52.817°N 14.117°W﻿ / 52.817; -14.117) by SM U-66 ( Imperial German Navy) with the loss of eight crew. |
| SMS S20 | Imperial German Navy | World War I: The S13-class torpedo boat was sunk in the North Sea off the coast of Belgium by HMS Canterbury and HMS Conquest ( Royal Navy). |
| SMS Senator Predohl | Imperial German Navy | The Vorpostenboot was lost on this date. |
| Sydkap | Norway | World War I: The fishing vessel was sunk in the Barents Sea north north east of Vardø (71°52′N 35°49′E﻿ / ﻿71.867°N 35.817°E﻿ / 71.867; 35.817) by SM U-28 ( Imperial German Navy). |

## 6 June

List of shipwrecks: 6 June 1917 :
| Ship | State | Description |
| Anton | Sweden | World War I: The cargo ship was sunk in the North Sea (56°45′N 1°05′W﻿ / ﻿56.750°N 1.083°W﻿ / 56.750; -1.083) by SM UC-77 ( Imperial German Navy). Two casualties were reported. |
| Cornelia | Netherlands | World War I: The schooner was sunk in the English Channel west of Jersey, Channel Islands (49°10′N 2°40′W﻿ / ﻿49.167°N 2.667°W﻿ / 49.167; -2.667) by SM UB-18 ( Imperial German Navy). |
| Diane | France | World War I: The coaster was sunk in the Mediterranean Sea off Oran, Algeria (37°19′N 11°42′E﻿ / ﻿37.317°N 11.700°E﻿ / 37.317; 11.700) by SM U-39 ( Imperial German Navy). Her crew survived. |
| Edvard | Sweden | World War I: The sailing vessel was scuttled in the Baltic Sea off Rauma, Finland by SM UC-58 ( Imperial German Navy). Her crew survived. |
| Elianna | Sweden | World War I: The sailing vessel was scuttled in the Baltic Sea off Rauma by SM UC-58 ( Imperial German Navy). Her crew survived. |
| Eemdijk | Netherlands | World War I: The cargo ship was sunk in the Atlantic Ocean north of the Shetland Islands, United Kingdom (61°40′N 1°40′W﻿ / ﻿61.667°N 1.667°W﻿ / 61.667; -1.667) by SM U-88 ( Imperial German Navy). Her crew survived. |
| Harald Klitgaard | Denmark | World War I: The cargo ship was torpedoed and sunk in the North Sea 28 nautical miles (52 km) north of the Farne Islands, Northumberland, United Kingdom by SM UC-77 ( Imperial German Navy) with the loss of a crew member. |
| Isabella J. Boyce | United States | The sandsucker grounded, caught fire and sank on Middle Bass Island in Lake Erie, Ontario, Canada. No lives were lost. |
| Oriana | Argentina | World War I: The sailing vessel was scuttled in the Mediterranean Sea 2 nautical miles (3.7 km) south east of Cap Camarat, Var, France (42°42′N 6°45′E﻿ / ﻿42.700°N 6.750°E﻿ / 42.700; 6.750) by SM U-64 ( Imperial German Navy). Her crew survived; they were rescued by the tug Indefatiguable ( France). |
| Parthenia | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 49°28′N 9°15′W﻿ / ﻿49.467°N 9.250°W﻿ / 49.467; -9.250) by SM U-69 ( Imperial German Navy) with the loss of three crew. |
| Saint Eloi | France | World War I: The cargo ship was sunk in the Bay of Biscay off the Île d'Yeu, Vendée by SM UC-72 ( Imperial German Navy). |
| S.N.A. 2 | France | World War I: The cargo ship was sunk in the North Sea 10 nautical miles (19 km) north east of Scarborough, Yorkshire by SM UB-21 ( Imperial German Navy). |

## 7 June

List of shipwrecks: 7 June 1917 :
| Ship | State | Description |
| Cranmore | United Kingdom | World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean 150 nautical miles (280 km) north west of the Fastnet Rock (52°46′N 14°24′W﻿ / ﻿52.767°N 14.400°W﻿ / 52.767; -14.400) by SM U-66 ( Imperial German Navy). She was beached but was later refloated. |
| Errington Court | United Kingdom | World War I: The cargo ship struck a mine in the Mediterranean Sea pff Port-la-Nouvelle, Aude, France and was beached. She was later refloated. |
| Golden Hope | United Kingdom | World War I: The drifter was scuttled in the North Sea 30 nautical miles (56 km) east of Kinnaird Head, Aberdeenshire by SM UC-45 ( Imperial German Navy). Her crew survived. |
| Hafnia | Denmark | World War I: The cargo ship was sunk in the Bay of Biscay south west of the Cordouan Lighthouse, Gironde, France (45°24′N 1°15′W﻿ / ﻿45.400°N 1.250°W﻿ / 45.400; -1.250) by SM UC-21 ( Imperial German Navy). Her crew survived. |
| Il Dionisio | Italy | World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-33 ( Imperial German Navy). |
| Ikalis | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) north west of the Fastnet Rock (52°19′N 13°57′W﻿ / ﻿52.317°N 13.950°W﻿ / 52.317; -13.950) by SM U-66 ( Imperial German Navy). Her crew survived. |
| John Bakke | Norway | World War I: The cargo ship was sunk in the North Sea east of the Shetland Islands, United Kingdom by SM U-88 ( Imperial German Navy). Her crew survived. |
| Jonathan Holt | 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-54 ( Imperial German Navy). Her crew survived. |
| Liliana | Italy | World War I: The sailing vessel was scuttled in the Mediterranean Sea off Alexandria, Egypt (32°43′N 31°40′E﻿ / ﻿32.717°N 31.667°E﻿ / 32.717; 31.667) by SM UC-34 ( Imperial German Navy). |
| Mahopac | United Kingdom | World War I: The cargo ship was torpedoed and damaged in the English Channel (50°44′N 0°12′W﻿ / ﻿50.733°N 0.200°W﻿ / 50.733; -0.200) by SM UB-40 ( Imperial German Navy). She was beached but was later refloated. |
| Mama Filomena | Italy | World War I: The brigantine was shelled and sunk in the Gulf of Lion (42°04′N 3°55′E﻿ / ﻿42.067°N 3.917°E﻿ / 42.067; 3.917) by SM U-64 ( Imperial German Navy). |
| Rosa M. | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea (37°50′N 15°53′E﻿ / ﻿37.833°N 15.883°E﻿ / 37.833; 15.883) by SM U-65 ( Imperial German Navy). |
| San Antonio | Italy | World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-33 ( Imperial German Navy). |
| Sir Francis | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the North Sea 2 nautical miles (3.7 km) north east of Scarborough, Yorkshire (54°19′N 0°22′W﻿ / ﻿54.317°N 0.367°W﻿ / 54.317; -0.367) by SM UB-21 ( Imperial German Navy) with the loss of ten of her crew. |
| SM UC-29 | Imperial German Navy | World War I: The Type UC II submarine was shelled and sunk by Q-ship HMS Pargust ( Royal Navy), which it had attacked. Twenty-three of her 25 crew were killed. |
| Wilhelm | United Kingdom | World War I: The schooner was shelled and sunk in the English Channel 20 nautical miles (37 km) south east by south of The Lizard, Cornwall (49°46′N 4°46′W﻿ / ﻿49.767°N 4.767°W﻿ / 49.767; -4.767) by SM UC-75 ( Imperial German Navy). Her crew survived. |
| Yuba | Norway | World War I: The barque was shelled and sunk in the Atlantic Ocean by SM U-50 ( Imperial German Navy). Her crew survived. |

## 8 June

List of shipwrecks: 8 June 1917 :
| Ship | State | Description |
| AG-15 | Imperial Russian Navy | The American Holland-class submarine sank off Öland, Sweden due to a hatch being left open when she dived. At least two of her fifteen crew died; there were at least eight survivors. She was raised on 16 June by the rescue vessel Volkhov ( Russia) and taken in to Reval. Subsequently repaired and returned to service. |
| Cariad | United Kingdom | World War I: The fishing vessel was scuttled in the English Channel 6 nautical miles (11 km) east by south of Start Point, Devon by SM UB-18 ( Imperial German Navy). Her crew survived. |
| Cheltonian | United Kingdom | World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 54 nautical miles (100 km) west by south of the Planier Lighthouse, Bouches-du-Rhône, France (42°46′N 4°40′E﻿ / ﻿42.767°N 4.667°E﻿ / 42.767; 4.667) by SM U-72 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war. |
| Enidwen | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) west north west of the Fastnet Rock (53°09′N 13°53′W﻿ / ﻿53.150°N 13.883°W﻿ / 53.150; -13.883) by SM U-69 ( Imperial German Navy). Her crew survived. |
| Felicina | Italy | World War I: The sailing vessel was sunk in the Gulf of Lion (42°57′N 4°38′E﻿ / ﻿42.950°N 4.633°E﻿ / 42.950; 4.633) by SM U-72 ( Imperial German Navy). |
| Huntstrick | United Kingdom | World War I: The troopship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) west north west of Cape Spartel, Morocco (35°52′N 6°47′W﻿ / ﻿35.867°N 6.783°W﻿ / 35.867; -6.783) by SM U-39 ( Imperial German Navy) with the loss of fifteen lives. |
| Isle of Jura | United Kingdom | World War I: The cargo ship was scuttled in the Atlantic Ocean 15 nautical miles (28 km) west south west of Cape Spartel (35°44′N 6°25′W﻿ / ﻿35.733°N 6.417°W﻿ / 35.733; -6.417) by SM U-39 ( Imperial German Navy) with the loss of two crew. |
| SMS M47 | Imperial German Navy | World War I: The Type 1915 minesweeper struck a mine and sank in the North Sea. |
| HMML 540 and HMML 541 | Royal Navy | World War I: The motor launches were lost when Huntstrick ( United Kingdom) was sunk by SM U-39 ( Imperial German Navy). |
| Ocean's Pride | United Kingdom | World War I: The fishin vessel was scuttled in the English Channel 9 nautical miles (17 km) east by south of Start Point by SM UB-18 ( Imperial German Navy). Her crew survived. |
| Onward | United Kingdom | World War I: The fishing vessel was scuttled in the English Channel 9 nautical miles (17 km) east of Start Point by SM UB-18 ( Imperial German Navy). Her crew survived. |
| Orator | United Kingdom | World War I: The cargo liner was torpedoed and sunk in the Atlantic Ocean 85 nautical miles (157 km) west north west of the Fastnet Rock (51°02′N 11°45′W﻿ / ﻿51.033°N 11.750°W﻿ / 51.033; -11.750) by SM U-96 ( Imperial German Navy) with the loss of five of her crew. |
| Phantom | United Kingdom | World War I: The brig was shelled and sunk in the English Channel 25 nautical miles (46 km) north north west of Cap La Heve, Seine-Inférieure, France by SM UB-40 ( Imperial German Navy) with the loss of three of her crew. |
| Saragossa | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 178 nautical miles (330 km) north west of the Fastnet Rock by SM U-69 ( Imperial German Navy). Her crew survived. |
| Sequana | France | World War I: The troopship was torpedoed and sunk in the Bay of Biscay 5 nautical miles (9.3 km) south east of the Pointe des Corbeaux, Île d'Yeu, Vendée (46°36′N 2°18′W﻿ / ﻿46.600°N 2.300°W﻿ / 46.600; -2.300) by SM UC-72 ( Imperial German Navy) with the loss of 207 of the 665 people on board. |
| Sverre II | Norway | World War I: The fishing vessel was sunk in the Barents Sea north east of Vardø, Finnmark (71°00′N 36°00′E﻿ / ﻿71.000°N 36.000°E﻿ / 71.000; 36.000) by SM U-28 ( Imperial German Navy). |
| Torbay Lass | United Kingdom | World War I: The fishing vessel was scuttled in the English Channel 9 nautical miles (17 km) east of Start Point by SM UB-18 ( Imperial German Navy). Her crew survived. |
| Valdieri | Italy | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 50 nautical miles (93 km) west north west of Cape Spartel (35°46′N 6°52′W﻿ / ﻿35.767°N 6.867°W﻿ / 35.767; -6.867) by SM U-39 ( Imperial German Navy). |
| Vinaes | Norway | World War I: The cargo ship was sunk in the English Channel 15 nautical miles (28 km) east north east of Barfleur, Manche, France by SM UB-32 ( Imperial German Navy) with the loss of nine of her crew. |

## 9 June

List of shipwrecks: 9 June 1917 :
| Ship | State | Description |
| Achilles | United Kingdom | World War I: The coaster was shelled and sunk in the Atlantic Ocean 75 nautical miles (139 km) south west by west of the Fastnet Rock (51°10′N 10°15′W﻿ / ﻿51.167°N 10.250°W﻿ / 51.167; -10.250) by SM U-55 and SM U-95 (both Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war. |
| Ada | Sweden | World War I: The cargo ship was torpedoed and sunk in the North Sea 20 nautical miles (37 km) east of Aberdeen, United Kingdom by SM U-61 ( Imperial German Navy) with the loss of three crew. |
| Amphitrite | Portugal | World War I: The sailing vessel was scuttled in the Atlantic Ocean 40 nautical miles (74 km) off Cape Prior, Spain by SM UC-48 ( Imperial German Navy). |
| Appledore | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 165 nautical miles (306 km) north west by west of the Fastnet Rock (48°42′N 8°46′W﻿ / ﻿48.700°N 8.767°W﻿ / 48.700; -8.767) by SM U-70 ( Imperial German Navy). Her crew survived. |
| Baron Cawdor | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) south west by south of the Fastnet Rock by SM U-96 ( Imperial German Navy) with the loss of three of her crew. |
| Bravore | Norway | World War I: The cargo ship was sunk in the Mediterranean Sea 70 nautical miles (130 km) off Toulon, Var, France (42°05′N 5°10′E﻿ / ﻿42.083°N 5.167°E﻿ / 42.083; 5.167) by SM U-72 ( Imperial German Navy). Her crew survived. |
| Dana | Denmark | World War I: The cargo ship was torpedoed and sunk in the North Sea 42 nautical miles (78 km) south of Lerwick, Shetland Islands, United Kingdom by SM U-61 ( Imperial German Navy) with the loss of four crew. |
| Deveron | Norway | World War I: The barque was torpedoed and sunk in the Atlantic Ocean 25 nautical miles (46 km) north north east of North Rona, United Kingdom by SM U-94 ( Imperial German Navy) with the loss of four of her crew. |
| Egyptiana | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 120 nautical miles (220 km) west south west of the Isles of Scilly by SM U-70 ( Imperial German Navy). Her crew survived. |
| Eugene Mathilde | France | World War I: The fishing vessel was sunk in the English Channel off the coast of Seine-Inférieure by SM UB-40 ( Imperial German Navy). |
| Fert | Italy | The cargo ship was sunk in the Mediterranean Sea 0.75 nautical miles (1.39 km) off Cape Tortosa, Spain (40°36′N 0°55′E﻿ / ﻿40.600°N 0.917°E﻿ / 40.600; 0.917) by SM U-64 ( Imperial German Navy). |
| François Georgette | France | The fishing vessel was sunk in the English Channel off the coast of Seine-Inférieure by SM UB-40 ( Imperial German Navy). |
| General Laurie | United Kingdom | World War I: The schooner was set afire and scuttled in the Mediterranean Sea 75 nautical miles (139 km) west by south of Marseille, Var (42°09′N 5°00′E﻿ / ﻿42.150°N 5.000°E﻿ / 42.150; 5.000) by SM U-72 ( Imperial German Navy). Her crew survived. |
| Gratangen | Norway | World War I: The cargo ship was sunk in the Mediterranean Sea 6 nautical miles (11 km) off Cape Torotsa (40°44′N 1°02′E﻿ / ﻿40.733°N 1.033°E﻿ / 40.733; 1.033) by SM U-64 ( Imperial German Navy). Her crew survived. |
| Harbury | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) west north west of Ouessant, Finistère, France (47°47′N 9°16′W﻿ / ﻿47.783°N 9.267°W﻿ / 47.783; -9.267) by SM U-70 ( Imperial German Navy) with the loss of twelve crew. |
| Lilly | Denmark | World War I: The cargo ship was scuttled in the Atlantic Ocean 3 nautical miles (5.6 km) off the Montedor Lighthouse, Portugal (41°40′N 9°45′W﻿ / ﻿41.667°N 9.750°W﻿ / 41.667; -9.750) by SM UC-53 ( Imperial German Navy). Her crew survived. |
| Ludwig | Sweden | World War I: The sailing vessel was sunk in the Baltic Sea 25 nautical miles (46 km) north of Oerker by SM UC-57 ( Imperial German Navy). |
| Marjorie | United Kingdom | World War I: The auxiliary ketch was scuttled in the English Channel 30 nautical miles (56 km) south east by south of The Lizard, Cornwall (49°36′N 4°41′W﻿ / ﻿49.600°N 4.683°W﻿ / 49.600; -4.683) by SM UB-18 ( Imperial German Navy). Her crew survived. |
| Montebello | Italy | World War I: The cargo ship was sunk in the Gulf of Lion (42°03′N 5°10′E﻿ / ﻿42.050°N 5.167°E﻿ / 42.050; 5.167) by SM U-72 ( Imperial German Navy). Her crew survived. |
| Roland | France | World War I: The barque was sunk in the Ionian Sea 30 nautical miles (56 km) west south west of Cythera, Greece (35°50′N 22°01′E﻿ / ﻿35.833°N 22.017°E﻿ / 35.833; 22.017) by SM U-27 ( Austro-Hungarian Navy). |
| Tordenvore | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean south west of Cape Finisterre, Spain (42°30′N 9°08′W﻿ / ﻿42.500°N 9.133°W﻿ / 42.500; -9.133) by SM UC-53 ( Imperial German Navy). Her crew survived. |

## 10 June

List of shipwrecks: 10 June 1917 :
| Ship | State | Description |
| Annam | France | World War I: The cargo liner was sunk in the Ionian Sea 20 nautical miles (37 km) south of Sapientza, Greece (36°49′N 21°23′E﻿ / ﻿36.817°N 21.383°E﻿ / 36.817; 21.383) by SM UC-35 ( Imperial German Navy). |
| August | Sweden | World War I: The ketch was sunk in the Baltic Sea 7 nautical miles (13 km) off the Unterstens Lighthouse by SM UC-58 ( Imperial German Navy). Her crew survived. |
| Bay State | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nautical miles (460 km) north west of the Fastnet Rock (53°00′N 16°09′W﻿ / ﻿53.000°N 16.150°W﻿ / 53.000; -16.150) by SM U-66 ( Imperial German Navy). Her crew survived. |
| Betty | Russia | World War I: The cargo ship was sunk in the Atlantic Ocean 45 nautical miles (83 km) north west of North Rona, United Kingdom (59°30′N 6°15′W﻿ / ﻿59.500°N 6.250°W﻿ / 59.500; -6.250) by SM U-61 ( Imperial German Navy). |
| Clan Alpine | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 40 nautical miles (74 km) north by east of Muckle Flugga, Shetland Islands by SM U-60 ( Imperial German Navy) with the loss of eight crew. |
| Dulwich | United Kingdom | World War I: The cargo ship struck a mine laid by the submarine SM UB-12 ( Imperial German Navy) and sank in the North Sea 7 nautical miles (13 km) north by east of the Shipwash Lightship ( United Kingdom) (52°08′N 1°45′E﻿ / ﻿52.133°N 1.750°E﻿ / 52.133; 1.750) with the loss of five of her crew. |
| Galicia | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) south west by south of the Fastnet Rock (48°55′N 10°00′W﻿ / ﻿48.917°N 10.000°W﻿ / 48.917; -10.000) by SM U-70 ( Imperial German Navy) with the loss of four crew. |
| HMS Grafton | Royal Navy | World War I: The Edgar-class cruiser was torpedoed and damaged in the Mediterranean Sea 150 nautical miles (280 km) east of Malta by SM UB-43 ( Imperial German Navy). |
| Haulwen | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 250 nautical miles (460 km) north west of the Fastnet Rock (52°48′N 16°00′W﻿ / ﻿52.800°N 16.000°W﻿ / 52.800; -16.000) by SM U-43 ( Imperial German Navy) with the loss of four crew. |
| Henri Jeanne | France | World War I: The fishing vessel was sunk in the English Channel off the coast of Seine-Inférieure by SM UB-40 ( Imperial German Navy). |
| Jupiter I | French Navy | World War I: The naval trawler struck a mine and sank in the English Channel off Calais, Pas-de-Calais (50°59′N 1°47′E﻿ / ﻿50.983°N 1.783°E﻿ / 50.983; 1.783) with the loss of ten of her crew. |
| Kleopatra | Greece | World War I: The sailing vessel was sunk in the Doro Channel by SM UC-23 ( Imperial German Navy). |
| Madeleine | France | World War I: The fishing vessel was scuttled in the English Channel off Le Havre, Seine-Inférieure by SM UB-40 ( Imperial German Navy). |
| Marie Elsie | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Barents Sea 125 nautical miles (232 km) north west of Cape Teriberski, Russia (71°21′N 34°16′E﻿ / ﻿71.350°N 34.267°E﻿ / 71.350; 34.267) by SM U-28 ( Imperial German Navy) with the loss of three of her crew. |
| Perla | United Kingdom | World War I: The cargo ship was sunk in the Barents Sea 130 nautical miles (240 km) west by north of Cape Teriberski (71°23′N 35°26′E﻿ / ﻿71.383°N 35.433°E﻿ / 71.383; 35.433) by SM U-28 ( Imperial German Navy) with the loss of four crew. |
| Petrolite | United States | World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 185 nautical miles (343 km) west of Cape Spartel, Morocco (35°03′N 9°13′W﻿ / ﻿35.050°N 9.217°W﻿ / 35.050; -9.217) by SM U-39 ( Imperial German Navy). Her crew survived. |
| Ribera | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 70 nautical miles (130 km) north of Cape Wrath, Sutherland by SM U-61 ( Imperial German Navy). Her crew survived. |
| Santa Maria | Portugal | World War I: The three-masted schooner was scuttled in the Atlantic Ocean 6 nautical miles (11 km) south of the Berlingas (39°11′N 9°35′W﻿ / ﻿39.183°N 9.583°W﻿ / 39.183; -9.583) by SM UC-53 ( Imperial German Navy). |
| Scottish Hero | Canada | World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 440 nautical miles (810 km) west by south of the Fastnet Rock (46°59′N 18°12′W﻿ / ﻿46.983°N 18.200°W﻿ / 46.983; -18.200) by SM U-155 ( Imperial German Navy) with the loss of a crew member. |
| Solhaug | Norway | World War I: The cargo ship was sunk in the Cantabrian Sea 5 nautical miles (9.3 km) east by south of Cape Peñas, Spain by SM UC-48 ( Imperial German Navy). Her crew survived. |
| Stylianos | Egypt | World War I: The sailing vessel was sunk in the Mediterranean Sea by SM UC-74 ( Imperial German Navy). Her crew survived. |
| HM Torpedo Boat 117 | Royal Navy | The TB 114-class torpedo boat collided with Kamourska ( United Kingdom) and sank in the English Channel. |

## 11 June

List of shipwrecks: 11 June 1917 :
| Ship | State | Description |
| Anglian | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 43 nautical miles (80 km) south west by west of the Bishop Rock, Isles of Scilly (49°22′N 7°12′W﻿ / ﻿49.367°N 7.200°W﻿ / 49.367; -7.200) by SM UC-75 ( Imperial German Navy) with the loss of a crew member. |
| Benha | United Kingdom | World War I: The cargo ship was scuttled in the Mediterranean Sea 50 nautical miles (93 km) north east of Marsa Susa, Libya (33°45′N 24°10′E﻿ / ﻿33.750°N 24.167°E﻿ / 33.750; 24.167) by SM UC-74 ( Imperial German Navy). Her crew survived. |
| Breid | Norway | World War I: The cargo ship was sunk in the North Sea 10 nautical miles (19 km) east by south of Noss, Caithness, United Kingdom by SM UC-41 ( Imperial German Navy). Her crew survived. |
| City of Perth | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 195 nautical miles (361 km) south south west of the Fastnet Rock (48°06′N 10°30′W﻿ / ﻿48.100°N 10.500°W﻿ / 48.100; -10.500) by SM U-70 ( Imperial German Navy) with the loss of eight of her crew. |
| Huntsholm | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the English Channel 4 nautical miles (7.4 km) east by south of the Owers Lightship ( United Kingdom) by SM UB-40 ( Imperial German Navy). Her crew survived. |
| L'vitsa | Imperial Russian Navy | World War I: The Bars-class submarine was sunk in the Baltic Sea, probably by a mine. |
| Mar Cor | Italy | World War I: The cargo ship was sunk in the Atlantic Ocean west of the Bishop Rock by SM UB-32 ( Imperial German Navy). Her crew survived. |
| Sibens | Russia | World War I: The sailing vessel was scuttled in the Atlantic Ocean off the Santa Maria Lighthouse, Portugal (36°52′N 8°08′W﻿ / ﻿36.867°N 8.133°W﻿ / 36.867; -8.133) by SM UC-53 ( Imperial German Navy). |
| Sigrun | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean 180 nautical miles (330 km) west of the Fastnet Rock by SM U-50 ( Imperial German Navy). Her crew survived. |
| Teviotdale | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 330 nautical miles (610 km) north west by west of the Fastnet Rock (52°20′N 18°27′W﻿ / ﻿52.333°N 18.450°W﻿ / 52.333; -18.450 by SM U-43 ( Imperial German Navy) with the loss of a crew member. |
| Wera | Russia | World War I: The sailing vessel was scuttled in the Atlantic Ocean 100 nautical miles (190 km) off Cadiz, Spain (35°11′N 8°11′W﻿ / ﻿35.183°N 8.183°W﻿ / 35.183; -8.183) by SM U-39 ( Imperial German Navy). |
| HMS Zylpha | Royal Navy | World War I: The Q-ship was torpedoed and damaged in the Atlantic Ocean south west of Ireland (51°20′N 11°00′W﻿ / ﻿51.333°N 11.000°W﻿ / 51.333; -11.000) by SM U-82 ( Imperial German Navy) with the loss of a crew member. She was taken under tow but sank on 15 June. |

## 12 June

List of shipwrecks: 12 June 1917 :
| Ship | State | Description |
| Alexandre | France | World War I: The barque was set afire and sunk in the English Channel off Fécamp, Seine-Inférieure by SM UC-69 ( Imperial German Navy). |
| Alfred | United Kingdom | World War I: The schooner was scuttled in the English Channel off Boulogne, Pas-de-Calais, France by SM UB-40 ( Imperial German Navy). Her crew survived. |
| Alwyn | United Kingdom | World War I: The ketch was scuttled in the North Sea 5 nautical miles (9.3 km) south east of Girdleness, Aberdeenshire (57°05′N 1°55′W﻿ / ﻿57.083°N 1.917°W﻿ / 57.083; -1.917) by SM UB-41 ( Imperial German Navy). Her crew survived. |
| Amakura | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 180 nautical miles (330 km) north west of Tory Island, County Donegal by SM U-94 ( Imperial German Navy) with the loss of two of her crew. |
| HMT Carew Castle | Royal Navy | World War I: The naval trawler struck a mine and sank in the Bristol Channel off Hartland Point, Devon (50°58′N 4°36′W﻿ / ﻿50.967°N 4.600°W﻿ / 50.967; -4.600) with the loss of three of her crew. |
| Elevera | United States | The motor vessel was wrecked in fog on Cape Cleare (59°47′N 147°54′W﻿ / ﻿59.783°N 147.900°W﻿ / 59.783; -147.900﻿ (Cape Cleare)) on Montague Island off the south-central coast of the Territory of Alaska. Her crew of two survived. |
| Eugene F. Moran | Canada | The cargo ship sank outside the entrance to St. John's, Newfoundland. |
| Gaita | Russia | World War I: The sailing vessel was scuttled in the Atlantic Ocean 40 nautical miles (74 km) off Cape Spartel, Morocco (35°55′N 6°52′W﻿ / ﻿35.917°N 6.867°W﻿ / 35.917; -6.867) by SM U-39 ( Imperial German Navy). |
| Moreni | United States | World War I: The tanker was shelled and sunk in the Mediterranean Sea 17 nautical miles (31 km) south east of Tabarca, Spain (37°52′N 0°14′E﻿ / ﻿37.867°N 0.233°E﻿ / 37.867; 0.233) by SM U-64 ( Imperial German Navy) with the loss of four crew. |
| Premier | United Kingdom | The tug broke in two at Halifax, Nova Scotia, and was a total loss. |
| Polyxena | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 57 nautical miles (106 km) west of the Fastnet Rock (51°06′N 11°05′W﻿ / ﻿51.100°N 11.083°W﻿ / 51.100; -11.083) by SM U-95 ( Imperial German Navy) with the loss of seven of her crew. |
| Symra | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean 5 nautical miles (9.3 km) south west of Huelva, Portugal by SM UC-53 ( Imperial German Navy). Her crew survived. |
| South Point | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 30 nautical miles (56 km) south west of the Bishop Rock, Isles of Scilly (49°43′N 7°00′W﻿ / ﻿49.717°N 7.000°W﻿ / 49.717; -7.000) by SM UB-32 ( Imperial German Navy). Her crew survived. |
| Unknown submarine | Unknown | World War I: A submarine was shelled and sunk by Meaford ( Canada) in a gun battle in the Mediterranean Sea. |

## 13 June

List of shipwrecks: 13 June 1917 :
| Ship | State | Description |
| Aghios Nicolaos | Greece | World War I: The sailing vessel was sunk in the Aegean Sea west of Icaria by SM UC-23 ( Imperial German Navy). |
| Biagio | Italy | World War I: The sailing vessel was scuttled in the Mediterranean Sea off Cape Camaret, France (43°19′N 6°59′E﻿ / ﻿43.317°N 6.983°E﻿ / 43.317; 6.983) by SM U-72 ( Imperial German Navy). |
| Candace | Norway | World War I: The barque was sunk in the North Sea 50 nautical miles (93 km) south west of Utsira, Rogaland by SM U-62 ( Imperial German Navy). Her crew survived. |
| Cederic | Norway | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean north west of Tory Island, County Donegal, United Kingdom (55°22′N 12°03′W﻿ / ﻿55.367°N 12.050°W﻿ / 55.367; -12.050) by SM U-94 ( Imperial German Navy). Her crew survived. |
| Darius | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 210 nautical miles (390 km) south west of the Fastnet Rock by SM U-54 ( Imperial German Navy) with the loss of fifteen crew. |
| Ernestine | France | World War I: The schooner was sunk in the Bay of Biscay 6 nautical miles (11 km) west north west of Cap Ferret, Gironde by SM UC-48 ( Imperial German Navy). |
| Eugene F. Moran | United Kingdom | The tug foundered 1 nautical mile (1.9 km) off St. John's, Newfoundland. |
| Kelvinbank | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 100 nautical miles (190 km) north of Cape Wrath, Sutherland by SM U-69 ( Imperial German Navy) with the loss of sixteen of her crew. |
| Manchuria | United States | The passenger-cargo ship collided with the monitor USS Amphitrite ( United States Navy) in New York Harbor. After her crew abandoned ship and were rescued by two section patrol boats (both United States Navy) and a motor sailer (flag unknown), Manchuria was towed and beached off Tompkinsville, Staten Island, New York. She was refloated, repaired, and returned to service. |
| USS McCulloch | United States Navy | USS McCulloch sinking.The patrol vessel, a former cutter ( United States Navy), collided with the passenger steamer Governor ( United States) in dense fog and sank in the Pacific Ocean 3 nautical miles (5.6 km) northwest of Point Conception, California. Governor rescued all 90 members of McCulloch's crew, but one of them died three days later. |
| Santo | Italy | World War I: The barque was shelled and sunk in the Mediterranean Sea off Cape Camarat, France by SM U-72 ( Imperial German Navy). Her crew survived. |
| Silverburn | United Kingdom | World War I: The coaster was shelled and sunk in the North Sea 4 nautical miles (7.4 km) south of Aberdeen (57°04′N 1°54′W﻿ / ﻿57.067°N 1.900°W﻿ / 57.067; -1.900) by SM UB-41 ( Imperial German Navy). Her crew survived. |
| St. Andrews | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 4 nautical miles (7.4 km) west of Cape Spartivento, (Not Sardinia) Calabria, Italy by SM UC-38 ( Imperial German Navy) with the loss of three of her crew. |
| Storegut | Norway | World War I: The four-masted barque was shelled and sunk in the Atlantic Ocean 235 nautical miles (435 km) south west of Land's End, Cornwall, United Kingdom (48°23′N 10°28′W﻿ / ﻿48.383°N 10.467°W﻿ / 48.383; -10.467) by SM U-82 ( Imperial German Navy). Her crew survived. |
| Sylvia | Norway | World War I: The sailing vessel was sunk in the North Sea 70 nautical miles (130 km) west of Olmestad by SM U-62 ( Imperial German Navy). Her crew survived. |

## 14 June

List of shipwrecks: 14 June 1917 :
| Ship | State | Description |
| Angantyr | Denmark | World War I: The cargo ship was sunk in the North Sea south east of Aberdeen, United Kingdom by SM UB-41 ( Imperial German Navy) with the loss of a crew member. |
| HMS Avenger | Royal Navy | World War I: The armed merchant cruiser was sunk in the Atlantic Ocean west of the Shetland Islands (60°22′N 4°35′W﻿ / ﻿60.367°N 4.583°W﻿ / 60.367; -4.583) by SM U-69 ( Imperial German Navy) with the loss of a crew member. |
| Aysgarth | United Kingdom | World War I: The cargo ship was scuttled in the Atlantic Ocean 430 nautical miles (800 km) west north west of Cape Finisterre, Spain (42°50′N 18°52′W﻿ / ﻿42.833°N 18.867°W﻿ / 42.833; -18.867) by SM U-155 ( Imperial German Navy) with the loss of three of her crew. |
| Carthaginian | United Kingdom | World War I: The cargo ship struck a mine, placed by SM U-79, and sank in the Atlantic Ocean 2.5 nautical miles (4.6 km) north west of the Inishtrahull Lighthouse, County Donegal (55°28′00″N 7°21′30″W﻿ / ﻿55.46667°N 7.35833°W﻿ / 55.46667; -7.35833). Her crew survived, they were rescued by a Royal Navy destroyer. |
| Cedarbank | Norway | World War I: The four-masted barque was torpedoed and sunk in the North Sea (60°22′N 2°45′E﻿ / ﻿60.367°N 2.750°E﻿ / 60.367; 2.750 by SM U-100 ( Imperial German Navy) with the loss of all 26 crew. |
| Dart | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) south south west of the Ballycottin Lighthouse, County Cork by SM UC-47 ( Imperial German Navy) with the loss of four of her crew. |
| Hasting | Sweden | World War I: The coaster was sunk in the Atlantic Ocean south of Ouessant, Finistère, France (48°18′N 5°37′W﻿ / ﻿48.300°N 5.617°W﻿ / 48.300; -5.617) by SM UC-69 ( Imperial German Navy). Her crew survived. |
| Highbury | United Kingdom | World War I: The cargo ship was sunk in the Atlantic Ocean 100 nautical miles (190 km) west south west of the Bishop Rock, Isles of Scilly (48°25′N 10°28′W﻿ / ﻿48.417°N 10.467°W﻿ / 48.417; -10.467) by SM U-82 ( Imperial German Navy) with the loss of all 40 crew. |
| Kankakee | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Irish Sea by a Luftstreitkräfte aircraft. |
| New Zealand Transport | United Kingdom | World War I: The collier was torpedoed and sunk in the Aegean Sea 8 nautical miles (15 km) south east of Serphopulo Island, Greece by SM UC-23 ( Imperial German Navy) with the loss of three of her crew. |
| Nirefs | Greece | World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 1.5 nautical miles (2.8 km) off the La Vielle Lighthouse, Ouessant. |
| Ortolan | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 100 nautical miles (190 km) west south west of the Bishop Rock (48°09′N 9°45′W﻿ / ﻿48.150°N 9.750°W﻿ / 48.150; -9.750) by SM U-82 ( Imperial German Navy) with the loss of three of her crew. |
| Perfect | Norway | World War I: The sailing vessel was sunk in the North Sea east of the Shetland Islands (60°58′N 2°18′E﻿ / ﻿60.967°N 2.300°E﻿ / 60.967; 2.300) by SM U-66 ( Imperial German Navy). Her crew survived. |
| Vigoureuse | France | World War I: The schooner was scuttled in the English Channel 20 nautical miles (37 km) north of the Casquets, Channel Islands by SM UB-32 ( Imperial German Navy). Her crew survived. |
| Wega | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the English Channel 20 nautical miles (37 km) west by south of the Royal Sovereign Lightship ( United Kingdom) by SM UC-71 ( Imperial German Navy) with the loss of five of her crew. |

## 15 June

List of shipwrecks: 15 June 1917 :
| Ship | State | Description |
| A. B. Johnson | United States | World War I: The schooner was burned after being captured the day before by SMS Seeadler ( Imperial German Navy). |
| Addah | United Kingdom | World War I: The Elder Dempster 4,397 GRT cargo/passenger ship was torpedoed and sunk in the Bay of Biscay 35 nautical miles (65 km) south west of Penmarc'h, Finistère, France (47°24′N 5°00′W﻿ / ﻿47.400°N 5.000°W﻿ / 47.400; -5.000) by SM UC-69 ( Imperial German Navy) with the loss of nine of her crew, whilst en route from Montreal to Cherbourg. The sinking is notable because when the submarine surfaced Oberleutnant zur See, Erwin Waßner ordered firing on Addah's captain's boat, hereby killing eight men. The master's boat's stern was blown off, but the U-boat continued firing at the swimming men as their lifeboat was sinking. The chief officer's lifeboat was also targeted and again some men were wounded badly. When the U-boat finally disappeared, the captain and others made it for the second lifeboat. |
| Albertine Beatrice | Netherlands | World War I: The barque was shelled and sunk in the Atlantic Ocean 200 nautical miles (370 km) south west of the Fastnet Rock (48°02′N 10°57′W﻿ / ﻿48.033°N 10.950°W﻿ / 48.033; -10.950) by SM U-82 ( Imperial German Navy). |
| Assunzione | Italy | World War I: The cargo ship struck a mine and sank in the Mediterranean Sea east of Bône, Algeria (37°00′N 8°00′E﻿ / ﻿37.000°N 8.000°E﻿ / 37.000; 8.000). Her crew survived. |
| Clio | Sweden | World War I: The sailing vessel struck a mine and sank in the Baltic Sea off Vaasa, Finland. |
| Espinho | Portugal | World War I: The coaster was torpedoed, shelled and sunk in the Atlantic Ocean (37°34′N 9°06′W﻿ / ﻿37.567°N 9.100°W﻿ / 37.567; -9.100) by SM U-39 ( Imperial German Navy). Her crew survived. |
| Eugène et Eugènie | France | World War I: The sailing vessel was scuttled in the Loire Estuary by SM UC-48 ( Imperial German Navy). Her crew survived. |
| Kristianiafjord | Norway | The passenger ship was wrecked off Cape Race, Newfoundland. All 1,144 passengers and crew were rescued. |
| Marion | United States | The motor boat sank just after leaving dock at Bath, North Carolina due to overloading. Four passengers died. |
| USS Olympia | United States Navy | The protected cruiser ran aground in Long Island Sound off Block Island. Her crew were taken off. She was later refloated, repaired and returned to service. |
| Pasha | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Strait of Messina (37°52′N 15°27′E﻿ / ﻿37.867°N 15.450°E﻿ / 37.867; 15.450) by SM UC-38 ( Imperial German Navy) with the loss of three of her crew. |
| Teesdale | United Kingdom | World War I: The cargo ship was damaged in the English Channel 2 nautical miles (3.7 km) off Bolt Head, Devon by SM UB-31 ( Imperial German Navy) with the loss of three of her crew. She was later refloated. |
| HMT Towhee | Royal Navy | The naval trawler sank in the English Channel. |
| Wapello | United Kingdom | World War I: The tanker was torpedoed and sunk in the English Channel 14 nautical miles (26 km) west south west of the Owers Lightship ( United Kingdom) (50°30′N 0°57′W﻿ / ﻿50.500°N 0.950°W﻿ / 50.500; -0.950) by SM UC-71 ( Imperial German Navy) with the loss of two of her crew. |
| Westonby | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 195 nautical miles (361 km) south west by south of the Fastnet Rock by SM U-82 ( Imperial German Navy). Her crew survived. |

## 16 June

List of shipwrecks: 16 June 1917 :
| Ship | State | Description |
| Carrie Hervey | United Kingdom | World War I: The schooner was shelled and sunk in the Atlantic Ocean 52 nautical miles (96 km) south east by south of the Armen Rock (47°16′N 4°03′W﻿ / ﻿47.267°N 4.050°W﻿ / 47.267; -4.050) by SM U-50 ( Imperial German Navy). Her crew survived. |
| Emsli | Tunisia | World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Esperanza | Spain | World War I: The sailing vessel was sunk in the Mediterranean Sea off Algiers, Algeria by SM UC-53 ( Imperial German Navy). |
| Fallodon | United Kingdom | World War I: The cargo ship was torpedoed and damaged in the Atlantic Ocean off Mine Head, County Cork by SM U-61 ( Imperial German Navy). She was beached but was later refloated, repaired and returned to service. |
| Inge | Denmark | World War I: The three-masted schooner was scuttled in the North Sea 175 nautical miles (324 km) off Hanstholm (56°21′N 3°09′E﻿ / ﻿56.350°N 3.150°E﻿ / 56.350; 3.150) by SM UB-22 ( Imperial German Navy). Her crew survived. |
| Jessie | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 260 nautical miles (480 km) west of the Bishop Rock, Isles of Scilly by SM U-82 ( Imperial German Navy). Her crew survived. |
| John D. Archbold | United States | World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 85 nautical miles (157 km) south west of Penmarc'h, Finistère, France (47°47′N 6°01′W﻿ / ﻿47.783°N 6.017°W﻿ / 47.783; -6.017 by SM UC-48 ( Imperial German Navy) with the loss of three of her crew. |
| Kamouma | Tunisia | World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Kibira | Tunisia | World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Kornsø | Denmark | World War I: The auxiliary schooner was shelled and sunk in the Atlantic Ocean north west of the Orkney Islands, United Kingdom by SM U-62 ( Imperial German Navy). Her crew survived. |
| La Tour d'Agon | France | World War I: The sailing vessel was scuttled in the Bay of Biscay 35 nautical miles (65 km) off the La Coubre Lighthouse by SM UC-69 ( Imperial German Navy). |
| Liberté | Tunisia | World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Metlaoni | Tunisia | World War I: The sailing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Roald Amundsen | Norway | World War I: The cargo ship struck a mine and was damaged in the North Sea 0.3 nautical miles (560 m) west of the Tongue Lightship ( United Kingdom) with the loss of three of her crew. She was beached but was later refloated, repaired and returned to service. |
| Unkai Maru No. 7 | Japan | World War I: The steamer was sunk by a mine in the Arabian Sea south west of Bombay, India (18°33′N 72°10′E﻿ / ﻿18.550°N 72.167°E﻿ / 18.550; 72.167). |

## 17 June

List of shipwrecks: 17 June 1917 :
| Ship | State | Description |
| Aghios Georgios | Greece | World War I: The sailing vessel was sunk in the Mediterranean Sea 30 nautical miles (56 km) west of Malta (35°37′N 13°49′E﻿ / ﻿35.617°N 13.817°E﻿ / 35.617; 13.817) by SM UC-22 ( Imperial German Navy). |
| Anjou | French Navy | World War I: The auxiliary minesweeper struck a mine and sank in the Adour at Bayonne, Basses-Pyrénées (43°35′N 1°32′W﻿ / ﻿43.583°N 1.533°W﻿ / 43.583; -1.533). Her crew survived. |
| Antonios M. Mavrogordatos | Greece | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 7 nautical miles (13 km) south of the Wolf Rock, Cornwall, United Kingdom (49°55′N 5°59′W﻿ / ﻿49.917°N 5.983°W﻿ / 49.917; -5.983) by SM UC-48 ( Imperial German Navy). |
| Argentina | Italy | World War I: The sailing vessel was sunk in the Gulf of Gabès off Djerba, Tunisia by SM UC-27 ( Imperial German Navy). |
| Bell Angelina | Italy | World War I: The fishing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Fornebo | United Kingdom | World War I: the tanker was torpedoed and sunk in the Atlantic Ocean 4 nautical miles (7.4 km) north of Cape Wrath, Sutherland by SM U-78 ( Imperial German Navy). Her crew survived. |
| HMT Fraser | Royal Navy | World War I: The naval trawler struck a mine and sank in the English Channel off Boulogne, Pas-de-Calais, France with the loss of twelve of her crew. |
| Giuseppe S. | Italy | World War I: The fishing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Gunhild | Denmark | World War I: The coaster was torpedoed and sunk in the North Sea 22 nautical miles (41 km) off Holmengrå, Vestland, Norway (60°45′N 4°19′E﻿ / ﻿60.750°N 4.317°E﻿ / 60.750; 4.317) by SM U-100 ( Imperial German Navy) with the loss of six of her crew. |
| Lizzie Westoll | 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°39′N 12°44′W﻿ / ﻿51.650°N 12.733°W﻿ / 51.650; -12.733) by SM UC-42 ( Imperial German Navy). Her crew survived. |
| Luigina | Italy | World War I: The fishing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Nostra Madre | Italy | World War I: The barque was shelled and sunk in the Atlantic Ocean 70 nautical miles (130 km) east of the Fastnet Rock by SM U-60 ( Imperial German Navy). |
| Raloo | United Kingdom | World War I: The cargo ship was torpedoed and sunk in St. George's Channel 6 nautical miles (11 km) south east by east of the Coningbeg Lightship ( United Kingdom) by SM U-61 ( Imperial German Navy) with the loss of three crew. |
| San Antonio V | Italy | World War I: The fishing vessel was sunk in the Gulf of Gabès by SM UC-27 ( Imperial German Navy). |
| Stanhope | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the English Channel 7 nautical miles (13 km) south west by west of Start Point, Devon (50°08′N 3°45′W﻿ / ﻿50.133°N 3.750°W﻿ / 50.133; -3.750) by SM UB-31 ( Imperial German Navy) with the loss of 22 of her crew. |
| HMS Tartar | Royal Navy | World War I: The Tribal-class destroyer struck a mine and was damaged in the English Channel off Boulogne with the loss of 45 of her crew. |
| Tosto | Norway | World War I: The cargo ship struck a mine and sank off Noup Head, Westray, Orkney Islands, United Kingdom. Her crew survived. |
| Wairuna | New Zealand | World War I: The cargo ship was captured by SMS Wolf ( Imperial German Navy) on 2 June off Sunday Island. She was scuttled on 17 June, a day after leaving the island. |

## 18 June

List of shipwrecks: 18 June 1917 :
| Ship | State | Description |
| HMT Bega | Royal Navy | World War I: The naval trawler was torpedoed and sunk in the Atlantic Ocean 40 nautical miles (74 km) north of Muckle Flugga, Shetland Islands (61°36′N 0°35′W﻿ / ﻿61.600°N 0.583°W﻿ / 61.600; -0.583) by SM U-58 ( Imperial German Navy) with the loss of seven crew. |
| Bettina | Italy | World War I: The brigantine was sunk in the Gulf of Gabès off Sfax, Tunisia (35°17′N 11°10′E﻿ / ﻿35.283°N 11.167°E﻿ / 35.283; 11.167) by SM UC-27 ( Imperial German Navy). |
| Bianca B | Italy | World War I: The brig was sunk in the Gulf of Gabès off Sfax (35°18′N 11°19′E﻿ / ﻿35.300°N 11.317°E﻿ / 35.300; 11.317) by SM UC-27 ( Imperial German Navy). |
| HMT Borneo | Royal Navy | World War I: The naval trawler struck a mine and sank in the English Channel off Beachy Head, Sussex (50°40′N 0°12′E﻿ / ﻿50.667°N 0.200°E﻿ / 50.667; 0.200) with the loss of eleven of her crew. |
| Dorte Jensen | Denmark | World War I: The cargo ship struck a mine and sank in the North Sea off the Tongue Lightship ( United Kingdom) (51°29′N 1°23′E﻿ / ﻿51.483°N 1.383°E﻿ / 51.483; 1.383). Her crew survived. |
| Elele | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 300 nautical miles (560 km) west north west of the Fastnet Rock (52°20′N 17°30′W﻿ / ﻿52.333°N 17.500°W﻿ / 52.333; -17.500) by SM U-24 ( Imperial German Navy). Her crew survived. |
| English Monarch | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 300 nautical miles (560 km) west north west of the Fastnet Rock (52°20′N 17°30′W﻿ / ﻿52.333°N 17.500°W﻿ / 52.333; -17.500) by SM U-24 ( Imperial German Navy) with the loss of three crew. |
| Gauntlet | United Kingdom | World War I: The ketch was scuttled in the English Channel 30 nautical miles (56 km) north west of the Les Hanois Lighthouse, Guernsey, Channel Islands by SM UC-65 ( Imperial German Navy). Her crew survived. |
| Kangaroo | United Kingdom | World War I: The schooner was shelled and sunk in the Atlantic Ocean 20 nautical miles (37 km) south of the Tuskar Rock, Ireland (51°53′N 6°24′W﻿ / ﻿51.883°N 6.400°W﻿ / 51.883; -6.400) by SM UC-51 ( Imperial German Navy) with the loss of four of her crew . |
| Letizia C. | Italy | World War I: The sailing vessel was sunk in the Gulf of Gabès off Sfax by SM UC-27 ( Imperial German Navy). |
| SMS M9 | Imperial German Navy | World War I: The M1-class minesweeper was sunk by mines in the North Sea. |
| Marietta B. | Italy | World War I: The sailing vessel was sunk in the Gulf of Gabès off Sfax by SM UC-27 ( Imperial German Navy). |
| Pannomitis | Greece | World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy). |
| Paolina Aida | Italy | World War I: The sailing vessel was sunk in the Gulf of Gabès off Sfax (35°17′N 11°10′E﻿ / ﻿35.283°N 11.167°E﻿ / 35.283; 11.167) by SM UC-27 ( Imperial German Navy). |
| Queen Adelaide | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 13 nautical miles (24 km) north north east of St. Kilda, Inverness-shire (58°04′N 8°35′W﻿ / ﻿58.067°N 8.583°W﻿ / 58.067; -8.583) by SM U-70 ( Imperial German Navy) with the loss of three crew. |
| R. C. Slade | United States | World War I:The schooner was scuttled in the Pacific Ocean by SMS Seeadler ( Imperial German Navy). |
| S. L. Clark | United States | The canal boat sank near Westerly, Rhode Island. |
| Seaconnet | United States | World War I: The cargo ship struck a mine and sank in the North Sea 10 nautical miles (19 km) east of Scroby Sands, Norfolk (52°26′N 2°00′E﻿ / ﻿52.433°N 2.000°E﻿ / 52.433; 2.000). Her crew survived. |
| Thistledhu | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 218 nautical miles (404 km) north west of the Fastnet Rock by SM U-82 ( Imperial German Navy) with the loss of four of her crew. |
| Tyne | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 18 nautical miles (33 km) south west of The Lizard, Cornwall (49°42′N 5°25′W﻿ / ﻿49.700°N 5.417°W﻿ / 49.700; -5.417) by SM UC-48 ( Imperial German Navy). Her crew survived. |
| Væring | Denmark | World War I: The cargo ship was torpedoed and sunk in the English Channel 14 nautical miles (26 km) north of the Stiff Lighthouse, Ouessant, Finistère, France by SM UC-65 ( Imperial German Navy) with the loss of a crew member. |
| Violet | United Kingdom | World War I: The barquentine was shelled and sunk in the Irish Sea 10 nautical miles (19 km) south south east of the Coningbeg Lightship ( United Kingdom) (51°57′N 6°24′W﻿ / ﻿51.950°N 6.400°W﻿ / 51.950; -6.400) by SM UC-51 ( Imperial German Navy). Her crew survived. |
| Waitotara | NZ | The 4,717 grt cargo ship was abandoned on fire about 240 mi (390 km) south of Nouméa on 17 June and probably sank on the 18th. She was steaming from San Francisco to Sydney. It was thought the fire started in a cargo of copra, but she was also carrying oil and paper. The crew of 40 were rescued by a French ship. Ships sent to salvage her could find no trace. |
| Xiphias | Greece | World War I: The passenger ship was sunk in the Aegean Sea off Mykonos by SM UC-23 ( Imperial German Navy). |

## 19 June

List of shipwrecks: 19 June 1917 :
| Ship | State | Description |
| Amalia | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Antonio Balbi | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Ariane | French Navy | World War I: The Amphitrite-class submarine was torpedoed and sunk in the Mediterranean Sea off Bizerta, Tunisia, by the submarine SM UC-22 ( Imperial German Navy). |
| Batoum | United Kingdom | World War I: The tanker was torpedoed and sunk in the Atlantic Ocean 6 nautical miles (11 km) south of the Fastnet Rock by SM U-61 ( Imperial German Navy). with the loss of a crew member. |
| Bearn | France | World War I: The cargo ship was sunk in the Bay of Biscay 8 nautical miles (15 km) north of Tapia de Casariego, Asturias, Spain by SM UC-69 ( Imperial German Navy). Her crew survived. |
| Brookby | United Kingdom | World War I: The cargo ship was scuttled in the Atlantic Ocean 155 nautical miles (287 km) south of the Fastnet Rock by SM U-60 ( Imperial German Navy). Her crew survived. |
| Buffalo | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 80 nautical miles (150 km) north west by north of Cape Wrath, Sutherland (59°34′N 7°30′W﻿ / ﻿59.567°N 7.500°W﻿ / 59.567; -7.500) by SM U-70 ( Imperial German Navy). Her crew survived. |
| HM CMB-1 | Royal Navy | World War I: The Coastal Motor Boat was shelled and sunk in the North Sea off Zeebrugge, West Flanders, Belgium by an Imperial German Navy destroyer with the loss of a crew member. Survivors were taken as prisoners of war. |
| Domenico Madre | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Ivigtut | Denmark | World War I: The auxiliary barque was sunk in the North Sea north east of the Shetland Islands, United Kingdom (61°47′N 0°03′W﻿ / ﻿61.783°N 0.050°W﻿ / 61.783; -0.050) by SM U-58 ( Imperial German Navy). Her crew survived. |
| Jakobus | Greece | World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy). |
| Kate and Anne | United Kingdom | World War I: The ketch was scuttled in the English Channel 25 nautical miles (46 km) north west by west of the Les Hanois Lighthouse, Guernsey, Channel Islands by SM UC-17 ( Imperial German Navy). Her crew survived. |
| Kelso | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 33 nautical miles (61 km) west south west of the Bishop Rock, Isles of Scilly by SM UC-75 ( Imperial German Navy). Her crew survived. |
| Kyma | Greece | World War I: The cargo ship was sunk in the Atlantic Ocean off the coast of Morocco (34°34′N 6°42′W﻿ / ﻿34.567°N 6.700°W﻿ / 34.567; -6.700) by SM U-39 ( Imperial German Navy). Her crew survived. |
| La Giuseppina | Italy | World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-64 ( Imperial German Navy). |
| La Michelina | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Louise | Norway | World War I: The barque was sunk in the North Sea 135 nautical miles (250 km) east north east of Hook Point, Hartlepool, County Durham, United Kingdom (56°14′N 2°29′E﻿ / ﻿56.233°N 2.483°E﻿ / 56.233; 2.483) by SM U-93 ( Imperial German Navy). Her crew survived. |
| Maria | Greece | World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy). |
| Mistica Rosa | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Natironco | Canada | The steamer was damaged in a collision with Eastern States ( United States) in the Detroit River and was beached on the Canadian side of the river. She was raised 5 October 1917 and taken to Toledo Shipbuilding Company, Toledo, Ohio, where she was repaired. |
| Nuovo Mondo Carmelo | Italy | World War I: The sailing vessel was sunk in the Strait of Sicily by SM U-64 ( Imperial German Navy). |
| Raffaelo | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Raxiarchos | Greece | World War I: The sailing vessel was sunk in the Aegean Sea by SM UC-23 ( Imperial German Navy). |
| Rosinella | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| San Antonio | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| San Giovanni Batista | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). Her crew survived. |
| Spind | Norway | World War I: The cargo ship was sunk in the Bay of Biscay 2 nautical miles (3.7 km) west by south of Cape Busto, Spain by SM UC-69 ( Imperial German Navy). Her crew survived. |
| S. Vincenzo Ferrari P. | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea off Pantelleria by SM UC-27 ( Imperial German Navy). |
| Tunisie | France | World War I: The cargo ship was sunk in the Atlantic Ocean west of Ireland (52°10′N 16°00′W﻿ / ﻿52.167°N 16.000°W﻿ / 52.167; -16.000 by SM U-43 ( Imperial German Navy) with the loss of all 31 crew. |

## 20 June

List of shipwrecks: 20 June 1917 :
| Ship | State | Description |
| Bengore Head | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 150 nautical miles (280 km) north west of the Fastnet Rock (52°19′N 13°39′W﻿ / ﻿52.317°N 13.650°W﻿ / 52.317; -13.650) by SM U-62 ( Imperial German Navy). Her crew survived. |
| Benita | United Kingdom | World War I: The schooner was shelled and sunk in the English Channel 15 nautical miles (28 km) south of Portland Bill, Dorset by SM UC-75 ( Imperial German Navy). Her crew survived. |
| Bidartaise | France | World War I: The vessel was sunk in the English Channel 15 nautical miles (28 km) south of Portland Bill by SM UC-75 ( Imperial German Navy). |
| Eli Lindoe | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean off the coast of Morocco by SM U-39 ( Imperial German Navy). Her crew survived. |
| Fido | Norway | World War I: The barque was captured and scuttled in the North Sea south south west of Utsire, Rogaland by SM U-19 ( Imperial German Navy). Her crew survived. |
| USS Gypsy | United States Navy | The patrol boat was destroyed by fire at Boston, Massachusetts whilst under conversion for navy use. |
| Katerina | Greece | World War I: The cargo ship was sunk in the Bay of Biscay (43°48′N 7°43′W﻿ / ﻿43.800°N 7.717°W﻿ / 43.800; -7.717) by SM UC-69 ( Imperial German Navy). |
| Ruperra | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 50 nautical miles (93 km) east by south of Pantelleria, Italy by SM UC-27 ( Imperial German Navy). Her crew survived. |
| HMS Salvia | Royal Navy | World War I: The Aubrietia-class sloop, operating as a Q-ship, was sunk in the Atlantic Ocean west of Ireland (52°25′N 16°20′W﻿ / ﻿52.417°N 16.333°W﻿ / 52.417; -16.333) by SM U-94 ( Imperial German Navy) with the loss of five of her crew. Her captain was taken as a prisoner of war. |

## 21 June

List of shipwrecks: 21 June 1917 :
| Ship | State | Description |
| Black Head | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the North Sea 52 nautical miles (96 km) east south east of the Out Skerries, Shetland Islands (60°22′N 1°00′E﻿ / ﻿60.367°N 1.000°E﻿ / 60.367; 1.000) by SM U-19 ( Imperial German Navy). Her crew survived. |
| Childe Harold | United States | World War I: The schooner was shelled and sunk in the Atlantic Ocean off Ouessant, Finistère, France (47°50′N 7°50′W﻿ / ﻿47.833°N 7.833°W﻿ / 47.833; -7.833) by SM UC-17 ( Imperial German Navy). Her crew survived. |
| E. T. Nygaard | Denmark | World War I: The cargo ship was scuttled in the Atlantic Ocean 2 nautical miles (3.7 km) off Cape Ortegal, Spain (43°44′N 8°02′W﻿ / ﻿43.733°N 8.033°W﻿ / 43.733; -8.033) by SM UC-69 ( Imperial German Navy). Her crew survived. |
| Hendrika | Netherlands | World War I: The fishing vessel was sunk in the North Sea off Callantsoog, North Holland by SM UC-64 ( Imperial German Navy). Her crew survived. |
| Laatefos | Norway | World War I: The cargo ship was torpedoed and sunk in the North Sea west of Lerwick, Shetland by SM U-19 ( Imperial German Navy). Her crew survived. |
| Lord Roberts | United Kingdom | World War I: The cargo ship was shelled and sunk in the Atlantic Ocean 270 nautical miles (500 km) north west by north of the Fastnet Rock (51°38′N 15°58′W﻿ / ﻿51.633°N 15.967°W﻿ / 51.633; -15.967) by SM U-62 ( Imperial German Navy). Her crew survived. |
| Ortona | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) south west of the Fastnet Rock by SM U-50 ( Imperial German Navy) with the loss of a crew member. |
| Scheria | Italy | World War I: The cargo ship was sunk in the Atlantic Ocean 140 nautical miles (260 km) west south west of Ouessant by SM UC-17 ( Imperial German Navy). |

## 22 June

List of shipwrecks: 22 June 1917 :
| Ship | State | Description |
| Bolette | Norway | World War I: The cargo ship was sunk in the North Sea 95 nautical miles (176 km) west of Feie by SM U-19 ( Imperial German Navy) with the loss of five of her crew. |
| HSwMS Claes Uggla | Swedish Navy | HSwMS Claes Uggla The cruiser ran aground and sank. |
| Himalaya | France | World War I: The passenger ship was sunk in the Mediterranean Sea 38°03′N 11°31′E﻿ / ﻿38.050°N 11.517°E﻿ / 38.050; 11.517) by SM U-63 ( Imperial German Navy) with the loss of 28 of the 204 people on board. |
| Maggie | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean 70 nautical miles (130 km) north west of Ireland by SM U-79 ( Imperial German Navy). Her crew survived. |
| Melford Hall | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 95 nautical miles (176 km) west of Tory Island, County Donegal (56°34′N 10°41′W﻿ / ﻿56.567°N 10.683°W﻿ / 56.567; -10.683) by SM U-100 ( Imperial German Navy). Her crew survived. |
| Miami | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 11 nautical miles (20 km) east south east of the Fastnet Rock (51°21′N 9°19′W﻿ / ﻿51.350°N 9.317°W﻿ / 51.350; -9.317) by SM UC-51 ( Imperial German Navy). Her crew survived. |
| Toro | Uruguay | World War I: The cargo ship was sunk in the Atlantic Ocean off the coast of Morocco (35°38′N 7°26′W﻿ / ﻿35.633°N 7.433°W﻿ / 35.633; -7.433) by SM U-39 ( Imperial German Navy). |
| Winslow | United States | World War I: The schooner was scuttled by shelling and then was burned after being captured on 16 June off Raoul Island, Kermadec Islands in the Pacific Ocean by SMS Wolf ( Imperial German Navy). |

## 23 June

List of shipwrecks: 23 June 1917 :
| Ship | State | Description |
| HMT Corientes | Royal Navy | World War I: The naval trawler struck a mine and sank in the Atlantic Ocean 4 nautical miles (7.4 km) north east of Malin Head, County Donegal (55°27′N 7°24′W﻿ / ﻿55.450°N 7.400°W﻿ / 55.450; -7.400) with the loss of thirteen crew. |
| Craonne | France | World War I: The cargo ship was shelled and sunk in the Mediterranean Sea south west of Sicily, Italy (38°06′N 5°49′E﻿ / ﻿38.100°N 5.817°E﻿ / 38.100; 5.817) by SM U-63 ( Imperial German Navy) with the loss of a crew member. |
| Isère | France | World War I: The cargo ship was sunk in the Atlantic Ocean 70 nautical miles (130 km) west of Cape Spartel, Morocco (35°36′N 6°58′W﻿ / ﻿35.600°N 6.967°W﻿ / 35.600; -6.967) by SM U-39 ( Imperial German Navy). Her crew survived. |
| Jules | France | World War I: The sailing vessel struck a mine and sank in the Gulf of Gabès off Sfax, Tunisia. |
| Kalypso Vergotti | Greece | World War I: The cargo ship was sunk in the Mediterranean Sea 70 nautical miles (130 km) north west of Cape Bougaroni, Algeria (37°55′N 5°21′E﻿ / ﻿37.917°N 5.350°E﻿ / 37.917; 5.350) by SM U-63 ( Imperial German Navy). |
| Mongolia | United Kingdom | World War I: The passenger ship struck a mine and sank in the Indian Ocean off Bombay, India with the loss of fourteen lives. |
| Sophie | Denmark | World War I: The three-masted schooner was sunk in the Atlantic Ocean north of the Shetland Islands, United Kingdom by SM U-55 ( Imperial German Navy). Her crew survived. |
| Star | Denmark | World War I: The three-masted schooner was sunk in the Atlantic Ocean north of the Shetland Islands by SM U-55 ( Imperial German Navy). Her crew survived. |

## 24 June

List of shipwrecks: 24 June 1917 :
| Ship | State | Description |
| Aghia Paraskevi | Greece | World War I: The cargo ship was sunk in the Mediterranean Sea 23 nautical miles (43 km) off Cap Ferrat, Alpes-Maritimes, France by SM UC-65 ( Imperial German Navy). |
| Cabo Verde | Portugal | World War I: The cargo ship was sunk in the Atlantic Ocean off Cape Vilano, Spain by SM UC-69 ( Imperial German Navy). Her crew survived. |
| Cestrian | United Kingdom | World War I: The troopship was sunk by torpedo in the Aegean Sea 4 nautical miles (7.4 km) south east of Skyros, Greece by SM UB-42 ( Imperial German Navy) with the loss of three lives. |
| Clan Davidson | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) south west by west of the Isles of Scilly (48°16′N 8°36′W﻿ / ﻿48.267°N 8.600°W﻿ / 48.267; -8.600) by SM UC-17 ( Imperial German Navy) with the loss of twelve of her crew. |
| Constantinos | Greece | World War I: The cargo ship was sunk in the Mediterranean Sea 25 nautical miles (46 km) off Cap Ferrat by SM UC-65 ( Imperial German Navy). Her crew survived. |
| Crown of Arragon | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 124 nautical miles (230 km) south west of the Isles of Scilly (48°10′N 8°14′W﻿ / ﻿48.167°N 8.233°W﻿ / 48.167; -8.233) by SM UC-17 ( Imperial German Navy) with the loss of a crew member. |
| Helma | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean 110 nautical miles (200 km) north of Cape Vilano, Spain (45°47′N 9°55′W﻿ / ﻿45.783°N 9.917°W﻿ / 45.783; -9.917) by SM UC-69 ( Imperial German Navy). Her crew survived. |
| Hilversum | Netherlands | World War I: The cargo ship was torpedoed and sunk in the Bristol Channel 4.5 nautical miles (8.3 km) south south west of Lundy Island, Devon, United Kingdom by SM UC-51 ( Imperial German Navy). Her crew survived. |
| HMS Kempton | Royal Navy | While rescuing the survivors of HMS Redcar ( Royal Navy), the Racecourse-class minesweeper struck a mine and sank in the North Sea off Gravelines, Pas-de-Calais, France (51°03′N 2°07′E﻿ / ﻿51.050°N 2.117°E﻿ / 51.050; 2.117) with the loss of three of her crew. |
| Kong Haakon | Norway | World War I: The cargo ship was sunk in the Mediterranean Sea 23 nautical miles (43 km) off Cap Ferrat by SM UC-65 ( Imperial German Navy) with the loss of nineteen of her crew. |
| HMS Redcar | Royal Navy | World War I: The Racecourse-class minesweeper struck a mine and sank in the North Sea off Gravelines (51°03′30″N 2°07′40″E﻿ / ﻿51.05833°N 2.12778°E﻿ / 51.05833; 2.12778) with the loss of seven of her crew. |
| South Wales | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 128 nautical miles (237 km) west of the Bishop Rock, Isles of Scilly by SM U-62 ( Imperial German Navy) with the loss of two crew. |
| Sylvanian | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 170 nautical miles (310 km) north west of Tory Island, County Donegal by SM U-94 ( Imperial German Navy) with the loss of two of her crew. |
| Taigetos | Greece | World War I: The cargo ship was sunk in the Mediterranean Sea 25 nautical miles (46 km) off Cap Ferrat by SM UC-65 ( Imperial German Navy). Her crew survived. |
| HMT Taipo | Royal Navy | World War I: The naval trawler struck a mine and sank in the English Channel off Beachy Head, Sussex (50°41′30″N 0°19′00″E﻿ / ﻿50.69167°N 0.31667°E﻿ / 50.69167; 0.31667) with the loss of five of her crew. |
| Telegraaf XVIII | Netherlands | World War I: The coaster was sunk in the North Sea west south west of Hook of Holland, South Holland (52°18′N 3°10′E﻿ / ﻿52.300°N 3.167°E﻿ / 52.300; 3.167) by SM UC-64 ( Imperial German Navy). |

## 25 June

List of shipwrecks: 25 June 1917 :
| Ship | State | Description |
| Anatolia | United Kingdom | World War I: The cargo ship struck a mine and sank in the Gulf of Genoa 1.5 nautical miles (2.8 km) off Genoa, Liguria, Italy. Her crew survived. |
| Galena | United States | World War I: The schooner barge was scuttled in the Atlantic Ocean 70 nautical miles (130 km) west by south of Ouessant, Finistère, France by SM UC-17 ( Imperial German Navy). Her crew survived. |
| HMS Gelsina | Royal Navy | World War I: The naval trawler struck a mine and sank in the North Sea off Aberdeen (57°07′N 1°58′W﻿ / ﻿57.117°N 1.967°W﻿ / 57.117; -1.967) with the loss of five of her crew. |
| Guildhall | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 40 nautical miles (74 km) south west by west of the Bishop Rock, Isles of Scilly by SM U-62 ( Imperial German Navy) with the loss of twelve crew. |
| Petritzis | Greece | World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay south west of Contis, Landes, France (43°25′N 1°30′W﻿ / ﻿43.417°N 1.500°W﻿ / 43.417; -1.500) by SM UC-65 ( Imperial German Navy). |
| Saxon Monarch | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 140 nautical miles (260 km) south west by west of the Isles of Scilly (48°24′N 7°47′W﻿ / ﻿48.400°N 7.783°W﻿ / 48.400; -7.783) by SM UC-17 ( Imperial German Navy). Her crew survived. |
| Southern | United Kingdom | World War I: The cargo ship struck a mine 4 nautical miles (7.4 km) north east of Port-la-Nouvelle, Aude, France and was beached. She was later refloated, repaired and returned to service. |

## 26 June

List of shipwrecks: 26 June 1917 :
| Ship | State | Description |
| Birdoswald | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 25 nautical miles (46 km) east of Tarragona, Catalonia, Spain (41°07′N 1°51′E﻿ / ﻿41.117°N 1.850°E﻿ / 41.117; 1.850) by SM U-63 ( Imperial German Navy). Her crew survived, but two of them were taken as prisoners of war. |
| Cattaro | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 130 nautical miles (240 km) west south west of the Bishop Rock, Isles of Scilly (48°50′N 7°47′W﻿ / ﻿48.833°N 7.783°W﻿ / 48.833; -7.783) by SM U-62 ( Imperial German Navy). Her crew survived. |
| HMT Charles Astie | Royal Navy | World War I: The naval trawler struck a mine and sank in Lough Swilly with the loss of all seventeen crew. |
| SMS G96 | Imperial German Navy | World War I: The G96-class torpedo boat struck a mine and sank in the North Sea off the coast of Belgium with the loss of four of her crew. |
| Georg | Russia | World War I: The sailing vessel was sunk in the Baltic Sea off Rauma, Finland by SM UC-57 ( Imperial German Navy). |
| Haverford | United Kingdom | World War I: The passenger ship was torpedoed and damaged in the Atlantic Ocean (57°01′N 10°59′W﻿ / ﻿57.017°N 10.983°W﻿ / 57.017; -10.983) by SM U-94 ( Imperial German Navy) with the loss of eight of her crew. She was beached at Kinnegar, County Donegal but was later refloated. |
| Manistee | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 86 nautical miles (159 km) west south west of the Bishop Rock (48°57′N 8°08′W﻿ / ﻿48.950°N 8.133°W﻿ / 48.950; -8.133) by SM U-62 ( Imperial German Navy with the loss of five crew. |
| Marie | Russia | World War I: The barge was sunk in the Baltic Sea off Rauma by SM UC-57 ( Imperial German Navy). |
| Martinniemi | Russia | World War I: The tug was sunk in the Baltic Sea off Rauma by SM UC-57 ( Imperial German Navy). |
| Serapis | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 106 nautical miles (196 km) north north west of Tory Island, County Donegal (56°20′N 10°45′W﻿ / ﻿56.333°N 10.750°W﻿ / 56.333; -10.750) by SM U-79 ( Imperial German Navy) with the loss of nineteen of her 22 crew. Two of the survivors were taken as prisoners of war. |
| Tervo | Russia | World War I: The barge was sunk in the Baltic Sea off Rauma by SM UC-57 ( Imperial German Navy). |
| Vonin | Denmark | World War I: The schooner was set afire in the Atlantic Ocean west of the Hebrides, United Kingdom by SM U-50 ( Imperial German Navy). She was later towed to Londonderry Port but was declared a constructive total loss. Her crew survived. |

## 27 June

List of shipwrecks: 27 June 1917 :
| Ship | State | Description |
| Armadale | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 160 nautical miles (300 km) north west of Tory Island, County Donegal (56°17′N 12°42′W﻿ / ﻿56.283°N 12.700°W﻿ / 56.283; -12.700) by SM U-60 ( Imperial German Navy) with the loss of three crew. |
| Baltic | Sweden | World War I: The auxiliary barge was sunk in the North Sea 75 nautical miles (139 km) west of Holmengråa Island, Vestland, Norway by SM U-21 ( Imperial German Navy). |
| Baron Ogilvy | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 172 nautical miles (319 km) north west of Tory Island by SM U-93 ( Imperial German Navy) with the loss of two of her crew. |
| Doxa | Hellenic Navy | World War I: The Niki-class destroyer was torpedoed and sunk in the Aegean Sea off Milos by SM UB-47 ( Imperial German Navy). |
| Kléber | French Navy | World War I: The Dupleix-class cruiser struck a mine and sank in the Bay of Biscay off Brest, Finistère with the loss of 42 of her crew. |
| Indrani | United Kingdom | The cargo ship was torpedoed and sunk in the Atlantic Ocean 36 nautical miles (67 km) south west of the Tuskar Rock, Ireland by a Kaiserliche Marine submarine. |
| Longbenton | United Kingdom | World War I: The collier was torpedoed and sunk in the North Sea 12 nautical miles (22 km) off Flamborough Head, Yorkshire (53°55′N 0°03′W﻿ / ﻿53.917°N 0.050°W﻿ / 53.917; -0.050) by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Solway Prince | United Kingdom | World War I: The coaster was scuttled in the English Channel 8 nautical miles (15 km) north of Alderney, Channel Islands by SM UB-40 ( Imperial German Navy). Her crew survived. |
| Tong Hong | United Kingdom | World War I: The cargo ship was sunk in the Mediterranean Sea 55 nautical miles (102 km) south by west of Cape Sicie, Var, France (42°09′N 5°40′E﻿ / ﻿42.150°N 5.667°E﻿ / 42.150; 5.667) by SM U-63 ( Imperial German Navy). Her crew survived, but her captain was taken as a prisoner of war. The rest of the survivors were rescued by Vega ( French Navy). |
| Ultonia | United Kingdom | World War I: The cargo liner was torpedoed and sunk in the Atlantic Ocean 190 nautical miles (350 km) south west of the Fastnet Rock by SM U-53 ( Imperial German Navy) with the loss of a crew member. |

## 28 June

List of shipwrecks: 28 June 1917 :
| Ship | State | Description |
| Corona | United Kingdom | World War I: The fishing vessel was shelled and sunk in the North Sea 65 nautical miles (120 km) east of Sumburgh Head, Shetland Islands by SM UC-33 ( Imperial German Navy). Her crew survived. |
| Don Arturo | 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 Isles of Scilly by SM UC-62 ( Imperial German Navy) with the loss of all 34 crew. |
| Elsie | United Kingdom | World War I: The fishing vessel was scuttled in the North Sea 10 nautical miles (19 km) north east of Spurn Point, Yorkshire by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Frances | United Kingdom | World War I: The fishing vessel was scuttled in the North Sea 10 nautical miles (19 km) north east of Spurn Point by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Frigate Bird | United Kingdom | World War I: The fishing vessel was sunk in the North Sea 10 nautical miles (19 km) north east of Spurn Point by SM UC-63 ( Imperial German Navy) with the loss of all five crew. |
| Glenelg | United Kingdom | World War I: The fishing vessel was scuttled in the North Sea north east of Spurn Point (53°56′N 1°04′E﻿ / ﻿53.933°N 1.067°E﻿ / 53.933; 1.067) by SM UC-63 ( Imperial German Navy). |
| Harbinger | United Kingdom | World War I: The fishing schooner was scuttled in the North Sea off Spurn Point by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Lizzie Ellen | United Kingdom | World War I: The schooner was scuttled in the English Channel 46 nautical miles (85 km) south of Start Point, Devon (49°29′N 3°19′W﻿ / ﻿49.483°N 3.317°W﻿ / 49.483; -3.317) by SM UC-65 ( Imperial German Navy). Her crew survived. |
| SMS M63 | Imperial German Navy | World War I: The Type 1916 minesweeper struck a mine and sank in the North Sea. |
| Marguerite | France | World War I: The cargo ship was torpedoed in the English Channel 19 nautical miles (35 km) south west of Portland Bill, Dorset, United Kingdom (50°36′06″N 2°58′39″W﻿ / ﻿50.60167°N 2.97750°W﻿ / 50.60167; -2.97750) by SM UB-40 ( Imperial German Navy). |
| Marne | France | World War I: The cargo ship was torpedoed and sunk in the Bay of Biscay 5 nautical miles (9.3 km) off the Île d'Yeu, Vendée (46°59′N 2°29′W﻿ / ﻿46.983°N 2.483°W﻿ / 46.983; -2.483) by SM UC-71 ( Imperial German Navy) with the loss of twelve of her 40 crew. Survivors were rescued by Sauterelle ( French Navy). |
| Minerve | France | World War I: The cargo ship was sunk in the Mediterranean Sea 20 nautical miles (37 km) north of Cape Sigli, Algeria (37°28′N 4°43′E﻿ / ﻿37.467°N 4.717°E﻿ / 37.467; 4.717) by SM U-34 ( Imperial German Navy). |
| Neotsfield | United Kingdom | World War I: The full-rigged ship was scuttled in the Atlantic Ocean 112 nautical miles (207 km) south west by west of the Bishop Rock, Isles of Scilly (48°28′N 8°19′W﻿ / ﻿48.467°N 8.317°W﻿ / 48.467; -8.317) by SM UC-62 ( Imperial German Navy). Her crew survived. |
| Rose of June | United Kingdom | World War I: The fishing vessel was scuttled in the North Sea 10 nautical miles (19 km) off Spurn Point by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Sonnin | Imperial German Navy | World War I: The Ditmar Koel-class Vorpostenboot was sunk by mines north west of Terschelling. |
| William and Betsy | United Kingdom | World War I: The fishing vessel was scuttled in the North Sea 10 nautical miles (19 km) north east of Spurn Point by SM UC-63 ( Imperial German Navy). Her crew survived. |

## 29 June

List of shipwrecks: 29 June 1917 :
| Ship | State | Description |
| HMS Bayard | Royal Navy | The Q-ship was lost on this date. |
| Driskos | Greece | World War I: Convoy 430: The cargo ship was shelled and sunk in the Bay of Biscay 5 nautical miles (9.3 km) south west of the Île de Noirmoutier, Vendée, France (46°55′N 2°31′W﻿ / ﻿46.917°N 2.517°W﻿ / 46.917; -2.517) by SM UC-71 ( Imperial German Navy) with the loss of a crew member. |
| Escondido | Norway | World War I: The cargo ship was sunk in the Atlantic Ocean 20 nautical miles (37 km) north north west of St. Kilda, Inverness-shire, United Kingdom by SM U-88 ( Imperial German Navy). Her crew survived. |
| Gem | United Kingdom | World War I: The fishing vessel was shelled and sunk in the North Sea 18 nautical miles (33 km) east by south of Rattray Head, Aberdeenshire by SM UC-33 ( Imperial German Navy). Her crew survived. |
| Lauwerzee | Netherlands | World War I: The trawler was shelled and sunk in the North Sea off Hook of Holland, South Holland by SM UC-21 ( Imperial German Navy). Her seven crew took to the lifeboats but were not rescued. |
| Manx Princess | United Kingdom | World War I: The fishing vessel was shelled and sunk in the North Sea 18 nautical miles (33 km) east by south of Rattray Head by SM UC-33 ( Imperial German Navy). Her crew survived. |

## 30 June

List of shipwrecks: 30 June 1917 :
| Ship | State | Description |
| Alkelda | Italy | World War I: The yacht was sunk in the Ligurian Sea by SM U-63 ( Imperial German Navy). |
| Asalia | Norway | World War I: The four-masted barque was damaged in the Western Approaches (51°00′N 13°50′W﻿ / ﻿51.000°N 13.833°W﻿ / 51.000; -13.833) by SM UC-44 ( Imperial German Navy). She sank the next day; her crew survived. |
| Benguela | Norway | World War I: The cargo ship, which had been captured on 14 June, was sunk in the Atlantic Ocean off Punta Delgada, Canary Islands, Spain (40°22′N 26°05′W﻿ / ﻿40.367°N 26.083°W﻿ / 40.367; -26.083) by SM U-155 ( Imperial German Navy). |
| Borgund I | Norway | World War I: The coaster was sunk in the English Channel off Dartmouth, Devon, United Kingdom (50°33′N 2°33′W﻿ / ﻿50.550°N 2.550°W﻿ / 50.550; -2.550) by SM UB-40 ( Imperial German Navy). Her crew survived. |
| Bröderna | Sweden | World War I: The fishing vessel was sunk in the North Sea north east of the Shetland Islands, United Kingdom by SM U-79 ( Imperial German Navy). |
| Caledonien | France | World War I: The passenger ship struck a mine and sank in the Mediterranean Sea 30 nautical miles (56 km) north of Port Said, Egypt (31°45′N 32°23′E﻿ / ﻿31.750°N 32.383°E﻿ / 31.750; 32.383). |
| Château Yquem | France | World War I: The cargo ship was sunk in the English Channel 22 nautical miles (41 km) west of Portland Bill, Dorset, United Kingdom by SM UB-40 ( Imperial German Navy). |
| HMS Cheerful | Royal Navy | World War I: The Mermaid-class destroyer struck a mine and sank in the Atlantic Ocean off the Shetland Islands (60°02′N 1°07′W﻿ / ﻿60.033°N 1.117°W﻿ / 60.033; -1.117) with the loss of 40 of her 62 crew. |
| Concettina | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea east of Sicily by SM UB-47 ( Imperial German Navy). |
| Enrichetta | Italy | World War I: The cargo ship was torpedoed and sunk in the Gulf of Genoa (44°12′N 9°23′E﻿ / ﻿44.200°N 9.383°E﻿ / 44.200; 9.383) by SM U-63 ( Imperial German Navy) with the loss of a crew member. |
| Flying Falcon | United Kingdom | The tug was driven ashore in Machrie Bay, Islay and was abandoned. She was salvaged in 1919, repaired and returned to service. |
| Germania | Sweden | World War I: The cargo ship was torpedoed and sunk in the North Sea whilst in convoy, 40 nautical miles (74 km) east of the Orkney Islands, United Kingdom (59°00′N 1°10′W﻿ / ﻿59.000°N 1.167°W﻿ / 59.000; -1.167) by SM UC-33 ( Imperial German Navy). Her crew survived. |
| Haigh Hall | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 40 nautical miles (74 km) east of Malta (36°12′N 15°24′E﻿ / ﻿36.200°N 15.400°E﻿ / 36.200; 15.400) by SM U-28 ( Austro-Hungarian Navy). Her crew survived. |
| Il Nuovo Gasperino Gabriele | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea south west of Marsala, Sicily by SM UC-67 ( Imperial German Navy). |
| Ilston | United Kingdom | World War I: The cargo ship was torpedoed and sunk in the English Channel 4 nautical miles (7.4 km) south east of The Lizard, Cornwall (49°56′N 5°07′W﻿ / ﻿49.933°N 5.117°W﻿ / 49.933; -5.117) by SM UB-23 ( Imperial German Navy) with the loss of six of her crew. |
| Lady of the Lake | United Kingdom | World War I: The ketch was scuttled in the Atlantic Ocean 25 nautical miles (46 km) south east by east of Mine Head, County Cork by SM UC-30 ( Imperial German Navy). Her crew survived. |
| Lancaster | Sweden | World War I: The fishing vessel was sunk in the North Sea north east of the Shetland Islands by SM U-79 ( Imperial German Navy). |
| Leytenant Zatsarenni | Imperial Russian Navy | World War I: The Leytenant Shestakov-class destroyer struck a mine and sank in the Black Sea off the mouth of the Danube. |
| Markersdal | Denmark | World War I: The cargo ship was sunk in the North Sea 12 nautical miles (22 km) south of Flamborough Head, Yorkshire, United Kingdom by SM UC-63 ( Imperial German Navy). Her crew survived. |
| Mont Viso | France | World War I: The troopship was sunk in the Mediterranean Sea off Gourraya, Algeria (36°39′N 1°55′E﻿ / ﻿36.650°N 1.917°E﻿ / 36.650; 1.917) by SM U-34 ( Imperial German Navy). |
| Phoebus | Italy | World War I: The cargo ship was torpedoed and sunk in the Irish Sea off Castletownbere, Ireland by SM UC-44 ( Imperial German Navy). Her crew survived. |
| Preceptor | Sweden | World War I: The fishing vessel was sunk in the North Sea north east of the Shetland Islands (61°42′N 1°17′E﻿ / ﻿61.700°N 1.283°E﻿ / 61.700; 1.283) by SM U-79 ( Imperial German Navy). |
| Sacra Famiglia | Italy | World War I: The sailing vessel was sunk in the Mediterranean Sea east of Sicily by SM UB-47 ( Imperial German Navy). |
| Siraa | Norway | World War I: The full-rigged ship was sunk in the Atlantic Ocean off Ponta Delgada, Azore Islands (40°22′N 26°51′W﻿ / ﻿40.367°N 26.850°W﻿ / 40.367; -26.850) by SM U-155 ( Imperial German Navy). Her crew survived. |

## Unknown date

List of shipwrecks: Unknown date 1917 :
| Ship | State | Description |
| Edouard Corbiere | French Navy | The naval trawler was lost in June. |
| Keeper | United Kingdom | World War I: The coaster was sunk in the Irish Sea by a Kaiserliche Marine submarine with the loss of ten of her crew. |
| Toro | Argentina | World War I: The cargo ship was sunk in the Strait of Gibraltar by enemy action in the week ending 26 June. |