German submarine U-506 was a Type IXC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 11 July 1940 at the Deutsche Werft yard in Hamburg as 'werk' 296, launched on 20 June 1941 and commissioned on 15 September 1941 under the command of Kapitänleutnant Erich Würdemann. After completing her training with the 4th U-boat Flotilla based at Stettin, U-506 was transferred to the 10th U-boat Flotilla for front-line service on 1 February 1942. She sank 14 ships, three were classified as 'damaged' another vessel was declared a 'total loss'.