German submarine U-507 was a Type IXC U-boat of Nazi Germany's Kriegsmarine built for service in the Second World War and the Battle of the Atlantic.

[5] Once the U-507 had completed her working up period of six months following her commissioning, she departed German waters and entered the Atlantic Ocean for her first patrol; an uneventful and simple cruise to Lorient in occupied France, which was to be her permanent home port for the remainder of her life.

The second patrol was more eventful, as the boat rounded Florida at the end of April 1942, taking full advantage of the lit-up settlements on the shoreline to pick and choose her targets amongst the unescorted shipping which bottlenecked between Cuba and the Floridan peninsula.

The then Brazilian dictatorship went from a neutral nation somewhat favourable towards the Axis powers, to an enraged opponent in the space of few days, declaring war on Nazi Germany and Fascist Italy.

Brazil would send an Expeditionary Force to the Mediterranean theatre of operations, besides the full involvement of its navy in the Battle of the Atlantic.

[8][9] The third patrol of U-507, was also highly significant, as after two months ineffective cruising between the West African and Brazilian coasts of the South Atlantic, U-507 received a radio call from U-156 on 15 September reporting that she had sunk a ship carrying 1,500 Italian prisoners of war.

She returned to Germany with her human cargo, and there received the orders which were the result of the Laconia incident, which consisted of a total ban on aiding shipwreck survivors, except ships' officers who were to be captured for information purposes.

On 13 January 1943 U-507 was spotted by a U.S. Navy PBY Catalina aircraft of VP-83 flying from a newly available Brazilian base, which dropped several depth charges on the boat.

There were no survivors from the entire crew of 56 including the three captives and the boat's new captain Heinz Radau, who was conducting an observation and familiarization patrol.