USS Seawolf (SS-197), a Sargo-class submarine, was the second submarine of the United States Navy named for the seawolf.
USS Bonefish (SS-223) was a Gato-class submarine, the first United States Navy ship to be named for the bonefish.
USS Guitarro (SS-363), a Gato-class submarine, was the first ship of the United States Navy to be named for the guitarro.
SS Kronprinz Wilhelm was a German passenger liner built for the Norddeutscher Lloyd, a former shipping company now part of Hapag-Lloyd, by the AG Vulcan shipyard in Stettin, Germany, in 1901. She took her name from Crown Prince Wilhelm, son of the German Emperor Wilhelm II, and was a sister ship of SS Kaiser Wilhelm der Grosse.
Convoy PQ 18 was an Arctic convoy of forty Allied freighters from Scotland and Iceland to Arkhangelsk in the Soviet Union in the war against Nazi Germany. The convoy departed Loch Ewe, Scotland on 2 September 1942, rendezvoused with more ships and escorts at Iceland and arrived at Arkhangelsk on 21 September. An exceptionally large number of escorts was provided by the Royal Navy in Operation EV, including the first escort carrier to accompany an Arctic convoy. Detailed information on German intentions was provided by the code breakers at Bletchley Park and elsewhere, through Ultra signals decrypts and eavesdropping on Luftwaffe wireless communications.
Vorwärts was a wolfpack of German U-boats that operated from 25 August to 26 September 1942, in the Battle of the Atlantic during World War II. They attacked several convoys, principally Convoy ON 127, sailing from Liverpool to New York, and sank fifteen ships for a total of 79,331 gross register tons (GRT), and damaged nine (81,141 GRT).
SS Oliver Ellsworth was a Liberty ship built in the United States during World War II. She was named after Oliver Ellsworth, an American lawyer, judge, politician, and diplomat. He was a framer of the United States Constitution, a United States Senator from Connecticut, and the third Chief Justice of the United States.
SS River Afton was a steam merchant built in 1935 by Lithgows, of Port Glasgow, Scotland and homeported in Glasgow. She was operated by Campbell Brothers & Co, Newcastle-upon-Tyne. She was named after the River Afton in Ayrshire, Scotland.
SS City of Nagpur was a British passenger steamship. She was built in 1922 by Workman, Clark and Company, Belfast for Ellerman Lines Ltd of London. She was registered in Glasgow. She was sunk in the Second World War in 1941.
SS Assyrian was a cargo ship that was built in Hamburg for German owners in 1914, transferred to British owners in 1920 as war reparations and sunk by a U-boat in 1940. She was launched as MS Fritz, and when she changed owners in 1920 she was renamed MS Assyrian. She had been built as a motor ship but in 1925 she was converted to a steamship and became SS Assyrian.
SS Soesterberg was a Dutch-owned cargo steamship that was built in Belgium in 1927 and sunk by a U-boat in 1940 in the Battle of the Atlantic.
The SS Winona was an American steam merchant vessel. She was built at the end of the First World War, surviving to see action during the Second World War. She had an eventful wartime career, sailing as part of a number of convoys and surviving being torpedoed by a U-boat on one occasion.
The SS Snefjeld was a steam merchant ship that saw service through two world wars, at first under the Dutch flag, followed by the Norwegian.
USS West Lianga (ID-2758) was a cargo ship for the United States Navy during World War I. She was later known as SS Helen Whittier and SS Kalani in civilian service under American registry, as SS Empire Cheetah under British registry, and as SS Hobbema under Dutch registry.
SS Corvus was a 1,317 GRT Norwegian steamship built in Copenhagen in 1920/21 by Kjøbenhavns Flydedok & Skibsværft A/S for the Norwegian passenger ship company Det Bergenske Dampskibsselskab of Bergen, which was attacked and sunk by two German U-boats in the Western Approaches of the English Channel on 27 February 1945.
I-12 was an Imperial Japanese Navy Type A2 long-range fleet submarine that served during World War II. Designed as a submarine aircraft carrier, she was commissioned in May 1944. Her crew committed a war crime when they attacked the survivors of a ship she sank in October 1944. She was sunk in November 1944 during her first war patrol.
Irish Willow was one of the few ships which maintained Irish trade during World War II.
SS Fuso Maru was a Japanese ocean liner that was torpedoed by the United States Navy submarine USS Steelhead (SS-280) in the South China Sea 280 nautical miles (520 km) northwest of Cape Mayraira, Luzon, the Philippines, at, while she was travelling in Convoy MI-11 from Moji, Japan, to Miri, Borneo.
I-37, originally numbered I-49, was a Japanese Type B1 submarine in service with the Imperial Japanese Navy during World War II. Commissioned in 1943, she made three war patrols, all in the Indian Ocean, during the last of which her crew committed war crimes by massacring the survivors of the merchant ships she sank. Subsequently, converted into a kaiten manned suicide attack torpedo carrier, she was sunk during her first kaiten mission in 1944.
SS Nailsea Court was a UK cargo steamship. She was launched in 1936 in Sunderland, England. She was named after Nailsea Court in Somerset, England, which is an historic Elizabethan manor house. A U-boat sank her in the North Atlantic in March 1943. 45 men died and only four survived.
Soviet Union 
