The list of shipwrecks in August 1918 includes ships sunk, foundered, grounded, or otherwise lost during August 1918.
World War I: The R-class destroyer struck a mine, from SM U-71 ( Imperial German Navy), and sank in the North Sea off IJmuiden (52°24′N 3°51′E / 52.400°N 3.850°E / 52.400; 3.850) with the loss of five of her crew.
[90] World War I: The cargo ship was torpedoed and sunk in the Atlantic Ocean 500 nautical miles (930 km) west of Le Verdon-sur-Mer, Gironde, France (46°47′N 13°42′W / 46.783°N 13.700°W / 46.783; -13.700) by SM U-90 ( Imperial German Navy) with the loss of five of the 86 people on board.
Survivors were rescued by USS Moma ( United States Navy).