German submarine U-826 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered on 8 June 1942, and was laid down on 6 August 1943 at F Schichau GmbH, Danzig, as yard number 1589. She was launched on 9 March 1944 and commissioned under the command of Oberleutnant zur See Olaf Lübcke on 11 May 1944.