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.

The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575–630 metric horsepower (423–463 kilowatts; 567–621 shaft horsepower), one AEG GU4463-8 double-acting electric motor electric motor providing 580 PS (430 kW; 570 shp), and one BBC silent running CCR188 electric motor providing 35 PS (26 kW; 35 shp).

Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-2337 was one of 116 selected to take part in Operation Deadlight.