German submarine U-884 was a Type IXD/42 U-boat of the Kriegsmarine during World War II. Her construction was ordered on 2 April 1942 and her keel was laid down on 29 August 1943 by AG Weser of Bremen. She was launched on 17 May 1944, but was never commissioned, and was badly damaged on 30 March 1945 by United States bombs.