German submarine U-2337 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 20 September 1943, and was laid down on 2 August 1944 at Deutsche Werft, Hamburg, as yard number 491. She was launched on 15 September 1944 and commissioned under the command of Oberleutnant zur See Günter Behnisch on 4 October 1944.