German submarine U-270 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 15 October 1941 at the Bremer-Vulkan-Vegesacker Werft (yard) in Bremen as 'werk' 35. She was launched on 11 July 1942 and commissioned on 5 September under the command of Oberleutnant Paul-Fredrich Otto. In six patrols, she caused one British warship of to be declared a total loss. She was a member of seven wolf packs. She was sunk in August 1943 in the Bay of Biscay by an Australian aircraft.