U-556

German submarine U-556 was a Type VIIC U-boat of Germany's Kriegsmarine during World War II. She was laid down on 2 January 1940 at the Blohm & Voss yard in Hamburg as yard number 532, launched on 7 December 1940, and commissioned on 6 February 1941 under the command of Kapitänleutnant Herbert Wohlfarth, who commanded her for her entire career. U-556 conducted only two patrols, sinking six ships totalling 29,552 gross register tons (GRT) and damaging one other of 4,986 tons, before she was sunk on 27 June 1941.