German submarine U-520

German submarine U-520 was a Type IXC U-boat of the Nazi German Kriegsmarine during World War II. The U-boat was laid down on 1 July 1941 at the Deutsche Werft yard in Hamburg as 'werk' 335, launched on 2 March 1942 and commissioned on 19 May 1942 under the command of Kapitänleutnant Volkmar Schwartzkopff. After training with the 4th U-boat Flotilla, she was transferred to the 2nd flotilla for front-line service on 1 October 1942.

Service history
U-520 sailed from Kiel on 3 October 1942, she negotiated the gap between the Faeroe and Shetland Islands and then turned west toward Cape Farewell, (the southern tip of Greenland). After a brief journey in the direction of Iceland, she headed southwest, then south, before being sunk east of Newfoundland in position 47.78333°N, -49.83333°W by depth charges from a Canadian Douglas Digby light bomber of No. 10 Squadron RCAF. All 53 crew were lost.

In January 2006 an article in the Edmonton Journal reported that a team of divers planned to search for U-520 and another U-boat, GS U-190.