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.

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).

[2] On 5 May 1945, U-4704 was scuttled in the Hørup Hav, southeast of Sønderborg, as part of Operation Regenbogen.