German submarine U-239 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 14 May 1942 at the Friedrich Krupp Germaniawerft yard at Kiel as 'werk' 669, launched on 28 January 1943 and commissioned on 13 March under the command of Leutnant Ulrich Vöge. After training with the 5th U-boat Flotilla at Kiel, she went to the 22nd flotilla as a 'school' boat and then back to the 5th flotilla. She was damaged in Kiel by British bombs in July 1944 and broken up in the same year.