German submarine U-83 was a Type VIIB U-boat of the Nazi German Kriegsmarine during World War II. She was laid down in the Flender Werke at Lubeck as Werk 291 on 5 October 1939. Launched on 9 December 1940, she was commissioned on 8 February 1941. U-83 served with 1st U-boat Flotilla from 8 February 1941 to 31 December, with the 23rd flotilla from 1 January 1942 to 30 April and with the 29th flotilla from 1 March 1942 until she was sunk.