German submarine U-2354 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 20 September 1944, and was laid down on 14 October 1944 at Deutsche Werft AG, Hamburg, as yard number 508. She was launched on 10 December 1944 and commissioned under the command of Oberleutnant zur See Hans-Dieter Wex on 11 January 1945.
Like all Type XXIII U-boats, U-2354 had a displacement of when at the surface and while submerged. She had a total length of (o/a), a beam width of (o/a), and a draught depth of . The submarine was powered by one MWM six-cylinder RS134S diesel engine providing , one AEG GU4463-8 double-acting electric motor electric motor providing , and one BBC silent running CCR188 electric motor providing .
The submarine had a maximum surface speed of and a submerged speed of . When submerged, the boat could operate at for ; when surfaced, she could travel at . U-2354 was fitted with two torpedo tubes in the bow. She could carry two preloaded torpedoes. The complement was 14âÂÂ18 men. This class of U-boat did not carry a deck gun.
On 9 May 1945, U-2354 surrendered at KristiansandâÂÂSüd, Norway. She was later transferred to Loch Ryan, Scotland, Northern Ireland on 29 May 1945. Of the 156 U-boats that eventually surrendered to the Allied forces at the end of the war, U-2354 was one of 116 selected to take part in Operation Deadlight. U-2354 was towed out and sank on 22 December 1945, by gunfire from the British destroyer .
The wreck now lies at .