German submarine U-489 was a Type XIV supply and replenishment U-boat ("Milchkuh") of Nazi Germany's Kriegsmarine during World War II.
Her keel was laid down on 28 January 1942, by Germaniawerft of Kiel as yard number 558. She was launched on 24 December 1942 and commissioned on 8 March 1943, with Leutnant zur See Adalbert Schmandt in command. He remained in command throughout the boat's short career.