List of shipwrecks in September 1917
Ship Country Description
HM CMB-8 Royal Navy The Coastal Motor Boat was lost on this date
Cydonia United Kingdom The collier was lost on this date
Deux Jeannes France World War I : The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles ( 56 km ) south west of Ouessant , Finistère ( 48°06′N 5°40′W / 48.100°N 5.667°W / 48.100 ; -5.667 ) by SM U-90 ( Imperial German Navy )
Greltoria United Kingdom World War I : The cargo ship was torpedoed and sunk in the North Sea 3 nautical miles ( 5.6 km ) north west by north of Flamborough Head , Yorkshire by SM UB-34 ( Imperial German Navy ) . Her crew survived
Liberté France World War I : The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles ( 56 km ) south west of Ouessant ( 48°06′N 5°40′W / 48.100°N 5.667°W / 48.100 ; -5.667 ) by SM U-90 ( Imperial German Navy )
Peuples Frères France World War I : The fishing vessel was sunk in the Atlantic Ocean 30 nautical miles ( 56 km ) south west Ouessant ( 48°06′N 5°40′W / 48.100°N 5.667°W / 48.100 ; -5.667 ) by SM U-90 ( Imperial German Navy )
SM UC-6 Imperial German Navy World War I : The Type UC I submarine struck a mine and sank in the North Sea off North Foreland , Kent , United Kingdom ( 51°30′N 1°34′E / 51.500°N 1.567°E / 51.500 ; 1.567 ) with the loss of all sixteen crew
The list of shipwrecks in September 1917 includes some ships sunk, foundered, grounded, or otherwise lost during September 1917.