German submarine U-305 was a Type VIIC U-boat of Nazi Germany's Kriegsmarine during World War II. The submarine was laid down on 30 August 1941 at the Flender Werke yard at Lübeck as yard number 305, launched on 25 July 1942 and commissioned on 17 September under the command of Oberleutnant zur See Rudolf Bahr. During her career, the U-boat sailed on four combat patrols, sinking four ships, before she was sunk in January 1944 in mid-Atlantic, southwest of Ireland. She was part of eight wolfpacks.