German submarine U-771
 German submarine U-771 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. She was ordered	on 21 November 1940 and was laid down on 21 August 1942 at Kriegsmarinewerft Wilhelmshaven as 'werk 154'. She was launched on 26 September 1943 and commissioned under the command of Oberleutnant zur See Helmut Block on 18 November of that year.