List of shipwrecks in September 1916

The list of shipwrecks in September 1916 includes some ships sunk, foundered, grounded, or otherwise lost during September 1916.

1 September

 * SS Baron Yarborough (1913) ( undefined: World War I: The cargo ship was scuttled in the Mediterranean Sea 27 nmi north west of Dragonera, Spain by SMU U-34 (Germany) . Her crew survived.
 * SS Dronning Maud (1907) (🇳🇴 Norway): World War I: The cargo ship struck a mine and sank in the North Sea 5 nmi north east of Southwold, Suffolk, United Kingdom with the loss of three of her crew.
 *  Giuseppe ( undefined): World War I: The brigantine was sunk in the Mediterranean Sea 30 nmi north of Ibiza, Spain (39.7°N, 1.76667°W) by SMU U-34 (Germany).
 * San Francesco di Paola ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea east of Algiers, Algeria by SMU U-38.
 * SS Swift Wings (1911) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 18 nmi east of Cape Bengut, Algeria by SMU U-38 with the loss of two crew. Her captain was taken as a prisoner of war.
 * SS Wissman ( undefined): The cargo ship caught fire a Kilindini, Kenya and was scuttled.

2 September

 * SS Gioconda (1902) : World War I: The transport ship was damaged in the Black Sea 45 nmi off Trabzon, Turkey by SMU UB-45 . She was towed to Trabzon and beached for use as a landing stage. Not repaired post-war.
 * SS Kelvinia (1913) ( undefined): World War I: The cargo ship struck a mine in the Bristol Channel 9 nmi south by west of Caldey Island, Pembrokeshire (52.205°N, -4.64583°W). Her crew survived.
 * SS Strathallan (1907) ( undefined): World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 20 nmi north east of Philippeville, Algeria (37.16667°N, 7.16667°W) by SMU U-38 . Her crew survived, but her captain was taken as a prisoner of war.
 * Uranie (🇫🇷 France): World War I: The sailing vessel was sunk in the Mediterranean Sea off Philippeville by SMU U-38.

3 September

 *  General Archinard (🇫🇷 France): World War I: The barque was sunk in the English Channel 16 nmi south east of the Royal Sovereign Lightship ( undefined) (50.58333°N, 0.83333°W) by SMU UB-23 . Her crew survived.
 * SS Gotthard (1906) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel 45 nmi west south west of Beachy Head, East Sussex, United Kingdom (50.28333°N, -0.21667°W) by SMU UB-29 . Her crew survived.
 * SS Mascotte (1885) ( undefined): World War I: The cargo ship struck a mine and sank in the North Sea 6.5 nmi off Southwold, Suffolk (52.25°N, 1.83333°W) with the loss of a crew member. by SMU UC-6 . Her crew survived.
 * SS Netta (1909) ( undefined): World War I: The coaster was scuttled in the English Channel 35 nmi north east of Cap d'Antifer, Manche, France by SMU UB-18 . Her crew survived.
 * Notre Dame de Lourdes (🇫🇷 France): World War I: The fishing vessel was sunk in the English Channel (50.43333°N, -0.01667°W) by SMU UB-29.
 * RUSSIAN TRANSPORT Peter Darcy : World War I: The transport ship was sunk in the Black Sea north of Snake Island (45.46667°N, 30.3°W) by SMU UB-42 . Her crew survived.
 * SS Rievaulx Abbey (1908) ( undefined): World War I: The cargo liner struck a mine and sank in the Humber Estuary (53.51111°N, 0.29167°W) with the loss of two lives.
 * SS Teesborough (1912) ( undefined): World War I: The coaster was scuttled in the English Channel 30 nmi off Fécamp, Seine-Maritime, France by SMU UB-18 . Her crew survived.
 * Villa de Oro ( undefined): World War I: The sailing vessel was sunk in the Mediterranean Sea 60 nmi off Zembra, Tunisia by SMU U-38 . Her crew survived.

4 September

 * HMT Jessie Nutten : World War I: The naval trawler struck a mine and sank in the North Sea off Lowestoft, Suffolk (52.28333°N, 1.76667°W) with the loss of five of her crew.
 * SS Laristan (1910) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 30 nmi south east of Gozo, Malta (36.06667°N, 13.21667°W) by SMU U-38 . Her crew survived but her captain was taken as a prisoner of war.
 *  Pasquale Lauro ( undefined): World War I: The barque was scuttled in the Gulf of Lion (41.91667°N, 5.26667°W) by SMU U-34 (Germany) . Her crew took to the lifeboats but were not seen again.
 *  Silverstream ( undefined): World War I: The barque was scuttled in the Gulf of Lion (42.41667°N, 5.36667°W) by SMU U-34 (Germany).
 * SS Stadion (🇳🇴 Norway): The cargo ship capsized whilst being loaded at Hull, Yorkshire, United Kingdom of Great Britain and Ireland.

5 September

 * SS City of Ghent (1871) ( undefined): World War I: The coaster was scuttled in the English Channel 18 nmi south east of Barfleur, Manche, France by SMU UB-18 . Her crew survived.
 * SS Jeanne (1904) (🇩🇰 Denmark): World War I: The cargo ship was sunk in the English Channel 16 nmi north east of the Casquets, Channel Islands (49.85°N, -2.28333°W) by SMU UB-29 . Her crew survived.
 * SS Marcel (1908) (🇧🇪 Belgium): World War I: The cargo ship was torpedoed and sunk in the English Channel 20 nmi north of Barfleur by SMU UB-18.
 * SS Saint Marc (1913) (🇫🇷 France): World War I: The cargo ship was sunk in the Mediterranean Sea 58 nmi south east of Malta (35.13333°N, 15.38333°W) by SMU U-38 . Her crew survived and were rescued by FRENCH NAVAL TRAWLER La Savoie.
 *  Spence ( undefined): The schooner was driven ashore 3 nmi west of Point of Ayre, Isle of Man and was wrecked. Her three crew were rescued.

6 September

 * Britannia ( undefined): World War I: The ketch was scuttled in the English Channel 12 nmi north of Alderney, Channel Islands by SMU UB-23 . Her crew survived.
 * HMT Manzanita : The naval trawler was lost in the Mediterranean Sea on this date.
 * SS Rilda (1883) (🇳🇴 Norway): World War I: The coaster was sunk in the North Sea east of the Noord Hinder Lightship (🇳🇱 Netherlands) by SMU UB-12 . Her crew survived.
 * SS Strathtay (1906) ( undefined): World War I: The cargo ship was torpedoed and sunk in the English Channel 4 nmi north of the Point de Pontsuval, Finistère, France (48.78333°N, -4.41667°W) by SMU UB-39 . Her crew survived.
 * SS Tagus (1898) ( undefined): World War I: The coaster was scuttled in the English Channel 35 nmi north east by east of Ouessant, Finistère (48.91667°N, -4.4°W) by SMU UB-39 . Her crew survived.
 * SS Torridge (1912) ( undefined): World War I: The cargo ship was scuttled in the English Channel 40 nmi south south west of Start Point, Devon (49.55°N, -3.65°W) by SMU UB-29.
 * Yvonne (🇫🇷 France): World War I: The sailing vessel was sunk in the English Channel (49.53333°N, -5.05°W) by SMU UB-29.

7 September

 * SS Achaia (1907) ( undefined): World War I: The cargo ship struck a mine and sank in the Mediterranean Sea 300 yd off Oran, Algeria (36°N, 0.83333°W). Her crew survived. The motor boats Allegro, Doreen and Griffin (all ) were being carried as cargo and were also lost.
 *  Alcyon (🇫🇷 France): World War I: The schooner was set afire and sunk in the English Channel 30 nmi north west of the Créac'h Lighthouse (48.83333°N, -5.33333°W) by SMU UB-39 . Her crew survived; they were rescued by SS Hafursfjord (🇳🇴 Norway).
 *  Alice (🇫🇷 France): World War I: The schooner was scuttled in the English Channel 30 nmi north of Ouessant, Finistère by SMU UB-29 . Her crew survived; they were rescued by HMS Martin (1910).
 * Emma (🇫🇷 France): World War I: The fishing vessel was scuttled in the English Channel 8 nmi north of Sept Îles, Côtes-du-Nord by SMU UB-23 . Her crew survived.
 * Farfadet (🇫🇷 France): World War I: The fishing vessel was sunk in the English Channel off the Triagoz Lighthouse, Finistère by SMU UB-23 . Her crew survived.
 * SS Heathdene (1901) ( undefined): World War I: The cargo ship was scuttled in the English Channel 38 nmi south south west of The Lizard, Cornwall by SMU UB-39 . Her crew survived.
 * SS Hiso (1898) (🇳🇴 Norway): World War I: The cargo ship struck a mine and sank in the Mediterranean Sea off Oran. Her crew survived.
 * Jeanne D'Arc (🇫🇷 France): World War I: The fishing vessel was sunk in the English Channel off the Triagoz Lighthouse by SMU UB-23 . Her crew survived.
 * Leonine (🇫🇷 France): World War I: The fishing vessel was scuttled in the English Channel off the Triagoz Lighthouse by SMU UB-23 . Her crew survived.
 *  Luigia ( undefined): World War I: The barque was scuttled in the Gulf of Genoa (42.7°N, 7.91667°W) by SMU U-34 (Germany).
 * Marguerite (🇫🇷 France): World War I: The sailing vessel was sunk in the Atlantic Ocean 50 nmi north west of Ouessant (49.11667°N, -5.91667°W) by SMU UB-39 . Her crew survived; they were rescued by SS Øifjeld (1912) (🇳🇴 Norway).
 * SS Messicano (1891) ( undefined): World War I: The cargo ship was sunk in the Atlantic Ocean 50 nmi south east of the Wolf Rock, Cornwall (48.95°N, -5.8°W) by SMU UB-39 . Her crew survived.

8 September

 * SS Butetown (1905) ( undefined): World War I: The collier was torpedoed and sunk in the Mediterranean Sea 55 nmi west south west of Cape Matapan, Greece (36°N, 21.25°W) by SMU UB-47 . Her crew survived.
 * SS Elizabeth IV (🇳🇴 Norway): World War I: The cargo ship was sunk in the Mediterranean Sea west of Sardinia, Italy by SMU U-34 (Germany) . Her crew survived.
 * SS Gamen (1902) (🇸🇪 Sweden): World War I: The cargo ship was sunk in the Atlantic Ocean 35 nmi south west of the Bishop Rock, Isles of Scilly, United Kingdom by SMU UB-18 . Her crew survived.
 *  Jeune Union (🇫🇷 France): World War I: The schooner was sunk in the Atlantic Ocean 28 nmi west by north of Ouessant, Finistère by SMU UB-39.
 * SS Llangorse (1900) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 48 nmi west south west of Cape Matapan (36°N, 21.91667°W) by SMU UB-47 . Her crew survived.
 * SS Lyderhorn (1906) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean 25 nmi south east of Ouessant by SMU UB-39 . Her crew survived.
 * Marie Louise (🇫🇷 France): World War I: The sailing vessel was set afire and sunk in the Atlantic Ocean 23 nmi north by west of Ouessant (48.83333°N, -5.3°W) by SMU UB-23 . Her crew survived.
 * SS Mayo (1896) (🇪🇸 Spain): World War I: The cargo ship was sunk in the Atlantic Ocean off Ouessant (48.88333°N, -5.46667°W) by SMU UB-23 . Her crew survived.
 * SS Olazarri (1890) (🇪🇸 Spain): World War I: The cargo ship was scuttled in the Atlantic Ocean 20 nmi south west of Ouessant by SMU UB-39.
 * SS Prince Georgios (🇬🇷 Greece): The coaster caught fire at Malta. She was towed out of port but sank 4 nmi offshire.
 * SS Spetzai (1891) (🇬🇷 Greece): World War I: The cargo ship was sunk in the Mediterranean Sea 60 nmi west of Cape Matapan (36°N, 21.2°W) by SMU UB-47 . Her crew survived.

9 September

 * Consolation ( undefined): World War I: The fishing smack was scuttled in the English Channel 15 nmi south south east of Start Point, Devon by SMU UB-29 . Her crew survived.
 * Dorado ( undefined): World War I: The fishing smack was scuttled in the English Channel 20 nmi south south east of Start Point by SMU UB-29 . Her crew survived.
 *  Europe (🇫🇷 France): World War I: The three-masted schooner was scuttled in the English Channel 30 nmi off the Île de Sein, Finistère (48.08333°N, -5.73333°W) by SMU UB-39 . Her crew survived.
 * Favourite ( undefined): World War I: The fishing vessel was shelled and sunk in the English Channel 20 nmi south east of Start Point by SMU UB-29 . Her crew survived.
 * SS Gemma (1896) ( undefined): World War I: The cargo ship was sunk in the Atlantic Ocean 43 nmi south west of the Wolf Rock, Cornwall, United Kingdom (49.26667°N, -6.16667°W) by SMU UB-23 . Her crew survived.
 *  Georges André (🇫🇷 France): World War I: The schooner was sunk in the Atlantic Ocean 30 nmi south west of the Bishop Rock, Isles of Scilly, United Kingdom (50°N, -6.33333°W) by SMU UB-18 . Her crew survived.
 * SS Lodsen (1899) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean 42 nmi off the Longships Lighthouse (49.48333°N, -6.33333°W) by SMU UB-18 . Her crew survived.
 * Muriel Franklin ( undefined): World War I: The fishing vessel was shelled and sunk in the English Channel 20 nmi south east of Start Point by SMU UB-29 . Her crew survived.
 * Myosotis (🇫🇷 France): World War I: The sailing vessel was sunk in the Atlantic Ocean 50°N, -6.33333°W) by SMU UB-18 . Her crew survived.
 * SS Pronto (1910) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean 13 nmi north west of Ouessant by SMU UB-39 . Her crew survived.
 * Remora (🇫🇷 France): World War I: The sailing vessel was sunk in the Atlantic Ocean south of the Wolf Rock by SMU UB-23 . Her crew survived, but were taken as prisoners of war.

10 September

 *  Elli (🇬🇷 Greece): World War I: The barque was sunk in the Mediterranean Sea south of Sardinia, Italy (38.3°N, 9.23333°W) by SMU U-34 (Germany).
 * SS Furu (1900) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean off the Bishop Rock, Isles of Scilly, United Kingdom by SMU UB-18 . Her crew survived.
 * SS Lexie (1911) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 42 nmi south west of Ouessant, Finistère, France (47.85°N, -5.83333°W) by SMU UB-39 . Her crew survived.
 * SS Lindborg (1890) (🇳🇴 Norway): World War I: The coaster was scuttled in the North Sea 9 nmi north west of the Maas Lightship (🇳🇱 Netherlands) by SMU UB-6 . Her crew survived.
 *  Marechal de Villars (🇫🇷 France): World War I: The barque was sunk in the Atlantic Ocean off the Isles of Scilly (49.1°N, -6.25°W) by SMU UB-18.
 * HMML 149 : The motor launch was lost in the Mediterranean Sea on this date.
 * SS Polynesia (1895) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean north west of Ouessant by SMU UB-18 . Her crew survived.
 *  Spiridon (🇬🇷 Greece): World War I: The barque was sunk in the Mediterranean Sea south of Sardinia (39.48333°N, 8.71667°W) by SMU U-34 (Germany).

11 September

 * SS Assimacos (1890) (🇬🇷 Greece): World War I: The cargo ship was scuttled in the Atlantic Ocean 45 nmi south of the Seven Stones Reef (45.25°N, -6.13333°W) by SMU UB-18.
 * SS Fredavore (1882) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Atlantic Ocean 28 nmi north west of Ouessant, Finistère, France by SMU UB-39 . Her crew survived.
 * SS Kong Ring (1913) (🇳🇴 Norway): World War I: The cargo liner was sunk in the Atlantic Ocean 30 nmi south of the Isles of Scilly, United Kingdom (49.53333°N, -6.68333°W) by SMU UB-18 . Her crew survived.
 * SS Lindborg (🇳🇴 Norway): The cargo ship foundered in te North Sea. Her crew were rescued.
 * SS Luis Vives (1890) (🇪🇸 Spain): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean off the Isles of Scilly by SMU UB-18.

12 September

 * SS Antwerpen (1916) (🇳🇱 Netherlands): World War I: The tanker was sunk in the Atlantic Ocean 30 nmi south west of the Isles of Scilly, United Kingdom (49.5°N, -6.78333°W) by SMU UB-18.
 * RUSSIAN TRANSPORT Elizabeth : World War I: The transport ship was sunk in the Baltic Sea off Grassgrund (59.33333°N, 23.76667°W) by SMU U-19 (Germany).
 * RUSSIAN TRANSPORT Ije : World War I: The transport ship was sunk in the Baltic Sea off Grassgrund by SMU U-19 (Germany) . Her crew survived.
 *  Panaghia Akathistou (🇬🇷 Greece): World War I: The barque was sunk in the Mediterranean Sea south east of Sicily, Italy (36.31667°N, 16.26667°W) by SMU U-34 (Germany).

13 September

 * Ariel (🇫🇷 France): World War I: The sloop was scuttled in the English Channel 35 nmi north west of Sept Îles, Côtes-du-Nord by SMU UB-18 . Her crew survived.
 * SS Hans Jensen (1914) (🇩🇰 Denmark): World War I: The cargo ship was sunk in the English Channel 52 nmi north east of the Île de Batz, Finistère, France (49.63333°N, -3.71667°W) by SMU UB-18 . Her crew survived.
 * SS J. N. Madvig (1884) (🇩🇰 Denmark): World War I: The cargo ship was sunk in the English Channel 54 nmi north north west of Paimpol, Finistère (49.33333°N, -3.85°W) by SMU UB-18 . Her crew survived.
 * SS Tolosa (1915) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel 30 nmi north north east of the Île de Batz by SMU UB-18 . Her crew survived.

14 September

 * SS Congress (🇺🇸 United States): The passenger ship was severely damaged by fire in Coos Bay.
 * SS Counsellor (1903) ( undefined): World War I: The cargo ship struck a mine and sank in the Atlantic Ocean 5 nmi west of Galley Head, County Donegal (51.63333°N, -9.05°W). Her crew survived.
 * SS Ethel (1884) (🇳🇴 Norway): World War I: The cargo ship was sunk in the English Channel off the Casquets, Channel Islands by SMU UB-18 . Her crew survived.
 * SS Inverbervie (1913) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranea Sea 17 nmi south by west of Capo Rizzuto, Calabria, Italy (37.91667°N, 16.25°W) by SMU U-4 (Austria-Hungary) with the loss of six of her crew.
 * SS Italiana (1898) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 112 nmi east of Malta (36°N, 16.83333°W) by SMU UB-43 . Her crew survived.
 * HMT Loch Garry : The naval trawler foundered on this date.
 * HMML 230 : World War I: The motor launch was shelled and sunk in the Mediterranean Sea 37.91667°N, 16.25°W by SMU U-4 (Austria-Hungary).
 * HMML 253 : World War I: The motor launch was shelled and sunk in the Mediterranean Sea (37.91667°N, 16.25°W) by SMU U-4 (Austria-Hungary).
 * HMML 255 : World War I: The motor launch was shelled and sunk in the Mediterranean Sea (37.91667°N, 16.25°W) by SMU U-4 (Austria-Hungary).

15 September

 * FRENCH SUBMARINE Foucault : World War I: The Brumaire-class submarine was bomber and sunk in the Adriatic Sea 10 nmi off Cattaro, Austria-Hungary by two Austro-Hungarian Navy seaplanes. Survivors were rescued by an Austro-Hungarian Navy torpedo boat.
 * SS Ida (🇳🇴 Norway): The cargo ship collided with SS Anine (🇩🇰 Denmark) at Oporto, Portugal and was beached.

17 September

 * SS Dewa (1913) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 45 nmi east by north of Malta by SMU UB-43 with the loss of three of her crew.
 * SS Lord Tredegar (1914) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 51 nmi south east by east of Malta (35.51667°N, 15.43333°W) by SMU UB-43 with the loss of four of her crew.

18 September

 * HMS Glenfoyle : World War I: The Q-ship was torpedoed and sunk in the Atlantic Ocean south west of Ireland (50.76667°N, -11.06667°W) by SMU U-43 (Germany) with the loss of eighteen crew.
 *  J. Holmes Hirdsall (🇺🇸 United States): The schooner was driven ashore at San Juan, Puerto Rico and was a total loss.

19 September

 *  Doride ( undefined): World War I: The barque was shelled and sunk in the Mediterranean Sea 70 nmi west of Isola Marittimo (38.4°N, 10.75°W) by SMU U-35 (Germany) . Her crew survived.
 *  Janie ( undefined): The schooner was driven ashore on Salt Island, Anglesey and was wrecked.
 *  Teresa C. ( undefined): World War I: The schooner was sunk in the Mediterranean Sea off Cape Carbonara (38.58333°N, 9.83333°W) by SMU U-35 (Germany).

20 September

 * SS Etton (1905) ( undefined): World War I: The collier struck a mine and sank in the White Sea off Sviatoi Nos, Russia (67.6°N, 41.33333°W) with the loss of a crew member.

22 September

 *  Garibaldi ( undefined): World War I: The barque was sunk in the Mediterranean Sea 60 nmi west of Algiers, Algeria (37.75°N, 2.83333°W) by SMU U-35 (Germany).
 * SS Giovanni Zambelli (1900) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea (38.16667°N, 2.91667°W) by SMU U-35 (Germany).
 * SS Kennett (1889) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Gulf of Finland off Keri, Estonia by SMU U-19 (Germany) with the loss of a crew member.

23 September

 * Andromeda ( undefined): World War I: The trawler was shelled and sunk in the North Sea 39 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Beechwold ( undefined): World War I: The trawler was shelled and sunk in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) (53.2°N, 1.16667°W) by SMU UC-16 . Her crew survived.
 * Britannia III ( undefined): World War I: The trawler was shelled and sunk in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * SS Charterhouse (1895) ( undefined): World War I: The cargo ship was scuttled in the Mediterranean Sea 26 nmi east by south of Formentera, Spain by SMU U-35 (Germany) . Her crew survived, but three of them were taken as prisoners of war.
 * Cockatrice ( undefined): World War I: The trawler was shelled and sunk in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * SS Dresden (1865) ( undefined): World War I: The coaster was scuttled in the English Channel 41 nmi south by east of the Nab Lightship ( undefined) by SMU UB-37 . Her crew survived.
 *  Faith ( undefined): The schooner ran aground and sank at Milford Haven, Pembrokeshire.
 * Germaine (🇧🇪 Belgium): World War I: The lighter was sunk in the North Sea off the Maas Lightship (🇳🇱 Netherlands) by SMU UB-6.
 * Lichtevreden II (🇧🇪 Belgium): World War I: The vessel was sunk in the North Sea off the Maas Lightship (🇳🇱 Netherlands) by SMU UB-6 . Her crew survived.
 * Maria da Jonge (🇧🇪 Belgium): World War I: The barge was sunk in the North Sea off the Maas Lightship (🇳🇱 Netherlands) by SMU UB-6.
 * Marie (🇫🇷 France): The sailing vessel collided with SS Wheatlands ( undefined) in the Irish Sea and sank. Her crew were rescued.
 * Mercury ( undefined): World War I: The trawler was shelled and sunk in the North Sea 65 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * SS Pearl (1904) ( undefined): World War I: The cargo ship was scuttled in the English Channel 41 nmi south by east of the Nab Lightship ( undefined) by SMU UB-37 . Her crew survived.
 * Phoenix ( undefined): World War I: The trawler was shelled and sunk in the North Sea 45 nmi east south east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Refino ( undefined): World War I: The trawler was shelled and sunk in the North Sea 39 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Rego ( undefined): World War I: The trawler was shelled and sunk in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Restless ( undefined): World War I: The trawler was shelled and sunk in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Rosalie (🇧🇪 Belgium): World War I: The barge was sunk in the North Sea off the Maas Lightship (🇳🇱 Netherlands) by SMU UB-6.
 * Viella ( undefined): World War I: The trawler was scuttled in the North Sea 38 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.
 * Weelsby ( undefined): World War I: The trawler was scuttled in the North Sea 40 nmi south east by east of the Spurn Lightship ( undefined) by SMU UC-16 . Her crew survived.

24 September

 * Albatross ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi east of Flamborough Head, Yorkshire by SMU U-57 . Her crew survived.
 * Aphelion ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi east of Flamborough Head by SMU U-57 . Her crew survived.
 * Briton ( undefined): World War I: The trawler was shelled and sunk in the North Sea 18 nmi south east by south of Flamborough Head by SMU U-57 . Her crew survived.
 * SS Bronwen (1913) ( undefined): World War I: The cargo ship was shelled and sunk 25 nmi north by east of Dragonera, Spain (40.35°N, 2.3°W) by SMU U-35 (Germany) . Her crew survived, but three of them were taken as prisoners of war.
 * SS Bufjord (1888) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Mediterranean Sea 8 nmi off Dragonera by SMU U-35 (Germany) . Her crew survived.
 * Devonshire ( undefined): World War I: The trawler was shelled and sunk in the North Sea 33 nmi north east of the Spurn Lightship ( undefined) by SMU U-57 . Her crew survived.
 * SS Laila (1899) (🇳🇴 Norway): World War I: The coaster was sunk in the North Sea 10 nmi north east of Flamborough Head (54.63333°N, 0.43333°W) by SMU U-57 . Her crew survived.
 * Marguerite ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough, Yorkshire by SMU U-57 . Her crew survived.
 * SS Nicolo (1916) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea 19 nmi north of Dragonera by SMU U-35 (Germany).
 * Oceanien (🇫🇷 France): The fishing vessel was sunk in the North Sea 35 nmi south of the Eddystone Lighthouse, Northumberland, United Kingdom (49.81667°N, -4.25°W) by SMU UB-37.
 * Otter ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Otterhound ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Sunshine ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Tarantula ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.

25 September

 * SS Afrique (1886) (🇫🇷 France): World War I: The cargo ship was sunk in the Atlantic Ocean 38 nmi south of the Longships Lighthouse (49.45°N, -5.58333°W) by SMU UB-37.
 * Bella ( undefined): World War I: The trawler was scuttled in the North Sea off the Tod Head Lighthouse, Aberdeenshire by SMU U-64 (Germany) . Her four crew survived but were taken as prisoners of war.
 * SS Benpark (1910) ( undefined): World War I The cargo ship was sunk in the Mediterranean Sea 40 nmi south east of Barcelona, Spain by SMU U-35 (Germany) . Her crew survived.
 * Cynthia ( undefined): World War I: The trawler was sshelled and sunk in the North Sea 23 nmi east by south of Flamborough Head, Yorkshire by SMU U-57 . Her crew survived.
 * Fisher Prince ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough, Yorkshire by SMU U-57 . Her crew survived.
 * Gamecock ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Harrier ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Loch Ness ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Nil Desperandum ( undefined): World War I: The trawler was scuttled in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Quebec ( undefined): World War I: The trawler was shelled and sunk in the North Sea 16 nmi east by north of Whitby, Yorkshire by SMU U-57 . Her crew survived.
 * Seal ( undefined): World War I: The trawler was shelled and sunk in the North Sea 33 nmi east by south of Hartlepool, County Durham by SMU U-57 . Her crew survived.
 * St. Hilda ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.
 * Trinidad ( undefined): World War I: The trawler was shelled and sunk in the North Sea 20 nmi north east of Scarborough by SMU U-57 . Her crew survived.

26 September

 * American (🇫🇷 France): The cargo ship caught fire and sank at Hong Kong.
 * HMY Conqueror II : World War I: The naval yacht was torpedoed and sunk in the Atlantic Ocean north west of Fair Isle by SMU U-52 with the loss of seventeen crew.
 * SS Dania (1881) (🇳🇴 Norway): World War I: The coaster was sunk in the Barents Sea 7 nmi north east of Cape Nordkinn, Finnmark by SMU U-43 (Germany) . Her crew survived.
 * SS Enrico Millo (1899) ( undefined): The cargo ship collided with SS Savoie (🇫🇷 France) in the Mediterranean Sea and sank with some loss of life.
 * SS Knut Hilde (1915) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Barents Sea 5 nmi off the Stetnes Lighthouse, Finnmark by SMU U-43 (Germany) . Her crew survived.
 * HMT Loch Shiel : World War I: The naval trawler struck a mine and sank in the Irish Sea 7 nmi west of the Helwick Lighthouse (51.48333°N, -4.75°W) with the loss of three of her crew
 * SS Newby (1890) ( undefined): World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 53 nmi east of Barcelona, Spain (41.5°N, 3.33333°W) by SMU U-35 (Germany) . Her crew survived.
 * SS Roddam (1910) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea 76 nmi east south east of Barcelona (40.88333°N, 3.3°W) by SMU U-35 (Germany) . Her crew survived.
 * HMT Sarah Alice : World War I: The naval trawler was torpedoed and sunk in the Atlantic Ocean north west of Fair Isle (59.75°N, -1.66667°W) by SMU U-52 with the loss of all sixteen crew.
 * SS Stathe (1892) ( undefined): World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 50 nmi east by south of Barcelona (41.41667°N, 3.33333°W) by SMU U-35 (Germany) . Her crew survived.
 * SS St. Gothard (1903) ( undefined): World War I: The collier was sunk in the Atlantic Ocean 12 nmi north by west of Fair Isle (59.68333°N, -1.75°W) by SMU U-52 . Her crew survived.
 * HMS Stirling Castle (1899) : The auxiliary minesweeper was lost in the Mediterranean Sea on this date.
 * SS Thelma (1903) ( undefined): World War I: The cargo ship was torpedoed and sunk in the North Sea 24 nmi east of Fair Isle by SMU U-20 (Germany) . Her crew survived.

27 September

 *  Avis ( undefined): The schooner was abandoned in the Atlantic Ocean 30 nmi west of Miquelon.
 * SS Exchange ( undefined): The cargo ship struck the pier at the mouth of the River Bann. She consequently sank at her moorings in Coleraine, County Antrim.
 * SS Kachidate Maru (1888) (🇯🇵 Japan): The cargo ship foundered in the South China Sea off Quelpart, Korea.
 * SS Rallus (1915) ( undefined): World War I: The cargo ship was shelled and sunk in the Mediterranean Sea 45 nmi north east by north of Dragonera, Spain by SMU U-35 (Germany) . Her crew survived.
 * SS Secondo (1904) ( undefined): World War I: The cargo ship was torpedoed and sunk in the Mediterranean Sea 40 nmi north north east of Dragonera by SMU U-35 (Germany) . Her crew survived.
 * SS Thurso (1909) ( undefined): World War I: The cargo ship was sunk in the North Sea 60 nmi north east by east of Rattray Head, Aberdeenshire by SMU U-44 . Her crew survived, but two were taken as prisoners of war.
 * SMU UB-7 : World War I: The Type UB I submarine departed Varna, Bulgaria on patrol. Subsequently lost in the Black Sea with the loss of all fifteen crew.
 * SS Vindeggen (1895) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Mediterranean Sea 30 nmi off Cape Frontera, Spain (40.3°N, 3.16667°W) by SMU U-35 (Germany) . Her crew survived.

28 September

 *  Benguela (🇸🇪 Sweden): World War I: The barque was scuttled in the North Sea 40 nmi east of the Longstone Lighthouse, Northumberland, United Kingdom by SMU U-49 . Her crew survived.
 * Emanuel (🇳🇴 Norway): World War I: The sailing vessel was sunk south of the Firth of Forth (55.46667°N, 0.16667°W) by SMU U-49 . Her crew survived.
 *  Emma ( undefined): World War I: The three-masted schooner was sunk in the Atlantic Ocean 75 nmi west north west of Slyme Head, Shetland Islands, United Kingdom by SMU UC-22.
 * Fuschia ( undefined): World War I: The trawler was shelled and sunk in the North Sea (56.11667°N, 0.5°W) by SMU U-45 . Her nine crew were taken as prisoners of war.
 * Marjorie ( undefined): World War I: The fishing smack was scuttled in the North Sea off Norfolk by SMU UB-12 . Her crew survived.
 * HMT Orsino : World War I: The naval trawler was shelled and sunk in the Atlantic Ocean north of Strathie Point, Sutherland (58.66667°N, -4.08333°W) by SMU U-55 with the loss of six crew.
 * SS Rolf Jarl (1911) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Barents Sea 10 nmi off Alexandrosk, Russia by SMU U-43 (Germany) . Her crew survived.

29 September

 * SS Knut Jarl (1909) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Barents Sea off Vardø, Finnmark (69.63333°N, 33.26667°W) by SMU U-43 (Germany) . Her crew survived.
 * SS Nesjar (1916) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Barents Sea 5 nmi north west of Zyp-Navolok, Russia (69.63333°N, 33.26667°W) by SMU U-43 (Germany) . Her crew survived.
 * Nornen (🇳🇴 Norway): World War I: The sailing vessel was sunk in the North Sea (56.25°N, 3.56667°W) by SMU U-49 . Her crew survived.
 * SS Ravn (1904) (🇳🇴 Norway: World War I: The cargo ship was sunk in the Barents Sea 7 nmi off Kildin Island, Russia by SMU U-46 with the loss of ten crew.
 * SS Sinsen (1914) (🇳🇴 Norway): World War I: The cargo ship was torpedoed and sunk in the Barents Sea 8 nmi off the Lineberka Lightship (flag unknown) (69.08333°N, 34.83333°W) by SMU U-46 . Her crew survived.
 * SS Venus (1899) ( undefined): World War I: The cargo ship was sunk in the Mediterranean Sea 20 nmi off Cape San Antonio, Spain by SMU U-35 (Germany).
 * SS Viola(🇸🇪 Sweden): The cargo ship was run in to by another vessel and sank in the English Channel off St Helen's, Isle of Wight, United Kingdom.

30 September

 * SS Fancy (1883) (🇳🇴 Norway): World War I: The cargo ship was sunk in the Barents Sea 6 nmi south east of Shipnavalok, Russia by SMU U-43 (Germany) . Her crew survived.
 * SS Hafnia (1896) (🇳🇴 Norway): World War I: The coaster was scuttled in the Barents Sea 5 nmi north of the Rybatchi Peninsula, Russia by SMU U-46 . Her crew survived.
 * SS Hekla (1907) (🇳🇴 Norway): World War I: The coaster was sunk in the Barents Sea 30 nmi off Kilberg, by SMU U-46 . Her crew survived.
 * SS Irma (1911) (🇫🇷 France): World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean off Wolf Rock, Cornwall, United Kingdom (49.48333°N, -5.7°W) by SMU UB-38.
 * SS Maywood (1901) ( undefined): World War I: The cargo ship struck a mine and sank in the English Channel off Le Havre, Seine-Maritime, France. Her crew survived.
 *  Pearl ( undefined): World War I: The schooner was scuttled in the English Channel 6 nmi south south east of The Lizard, Cornwall (49.88333°N, -5.1°W) by SMU UB-38 . Her crew survived.
 *  William George ( undefined): World War I: The schooner was shelled and sunk in the English Channel 10 nmi north north east of Cap de la Hague, Manche, France by SMU UC-26 . Her crew survived.

Unknown date

 * GS Bremen ( undefined): The merchant submarine departed Bremerhaven in September 1916 for Norfolk, Virginia, United States. No further trace, lost with all hands.
 * SS Gustave Vigeland (🇳🇴 Norway): The cargo ship ran aground off the Longstone Lighthouse, Northumberland, United Kingdom. She later broke up and sank.
 *  Norden ( undefined): The barque was set afire and abandoned in the Atlantic Ocean before 10 September.