German submarine U-4704 was a Type XXIII U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 7 July 1944, and was laid down on 9 November 1944 at Friedrich Krupp Germaniawerft AG, Kiel, as yard number 946. She was launched on 13 February 1945 and commissioned under the command of Leutnant zur See Gerhard Franceschi on 14 March 1945.
Like all Type XXIII U-boats, U-4704 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-4704 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 5 May 1945, U-4704 was scuttled in the Hørup Hav, southeast of Sønderborg, as part of Operation Regenbogen. The wreck was later raised and broken up.