German submarine U-2337

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.

Design
Like all Type XXIII U-boats, U-2337 had a displacement of 232 t when at the surface and 256 t while submerged. She had a total length of 34.14 m (o/a), a beam width of 3.02 m (o/a), and a draught depth of 3.66 m. The submarine was powered by one MWM six-cylinder RS134S diesel engine providing 575 PS, one AEG GU4463-8 double-acting electric motor electric motor providing 572 PS, and one BBC silent running CCR188 electric motor providing 35 PS.

The submarine had a maximum surface speed of 9.7 kn and a submerged speed of 12.5 kn. When submerged, the boat could operate at 4 kn for 202 nmi; when surfaced, she could travel 2600 nmi at 8 kn. U-2337 was fitted with two 53.3 cm torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14 – 18 men. This class of U-boat did not carry a deck gun.

Service history
On 9 May 1945, U-2337 surrendered at Kristiansand, Norway. She was later transferred to Loch Ryan, Scotland on 29 May 1945. 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. U-2337 was towed out to be sank on 28 November 1945, by gunfire from the British destroyer HMS Onslow (G17) and the Polish destroyer ORP Piorun (G65).

The wreck now lies at 56.16667°N, -10.08333°W.