German Submarine U-507

German Submarine U-507

German submarine U-507 was a Type IXC U-boat of the Nazi German Kriegsmarine built for service in the Second World War and the Battle of the Atlantic. She was mainly notable for two patrols she conducted during the "Second Happy Time" in mid-1942, during the first of which she caused havoc in the Gulf of Mexico amongst unprotected American shipping, and then in the second she attacked ships along the coast of Brazil, in an inexplicable and shocking attack on a neutral nation's shipping in its own waters which almost single-handedly provoked the Brazilian declaration of war on Germany.

The U-boat was built during 1941 by the Deutsche Werft shipyards in Hamburg, and commissioned on 8 October 1941, with Korvettenkapitän Harro Schacht in command. Schacht commanded the boat for its entire lifespan, receiving the Knight's Cross of the Iron Cross on 9 January 1943 in recognition of his successful patrols in the preceding year. He never wore his award however, as he was killed with his entire crew when the boat was sunk four days later.