German submarine U-273 was a Type VIIC U-boat of the Nazi German Kriegsmarine during World War II. The submarine was laid down on 5 December 1941 at the Bremer Vulkan yard at Bremen-Vegesack as 'werk' 38, she was launched on 2 September 1942 and commissioned on 21 October under the command of Oberleutnant zur See Hans-Adolf Engel.