German submarine U-983 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 25 May 1941, and was laid down on 7 September 1942 at Blohm & Voss, Hamburg, as yard number 183. She was launched on 12 May 1943 and commissioned under the command of Leutnant zur See Hans Reimers on 16 June 1943.