SS Heimwehr "Danzig" was an SS unit established in the Free City of Danzig (today Gdańsk and environs, Poland) before the Second World War. It fought with the German Army against the Polish Army during the invasion of Poland, and some of its members committed a massacre of Polish civilians. After this it became part of the 3rd SS Totenkopf Division and ceased to exist as an independent unit.
Also known as Heimwehr Danzig (Danzig Home Defense), it was officially established on 20 June 1939, when the Danzig senate under Albert Forster decided to set up its own armed force; a cadre of this new unit primarily formed the Danzig SS Wachsturmbann "Eimann". This unit committed a number of massacres of Polish civilians, and its members were also transferred to the Totenkopf division.
Reichsführer-SS Heinrich Himmler supported this project and sent SS-Obersturmbannführer Hans Friedemann Götze to Danzig. Goetze was the commander of the III. Sturmbann (Battalion) of the 4th SS-Totenkopfstandarte "Ostmark," established in October 1938 in Berlin-Adlersheim.
The III. Sturmbann was strengthened with the help of anti-tank defense forces (the Panzerabwehr-Lehrsturm of the SS- Totenkopfstandarten) as well as about 500 additional volunteers from Danzig who named their new unit SS Sturmbann "Goetze". It was formed to conduct police actions in and around Danzig. The Danzig SS-men had been members a special SS troop established in July 1939 - the Wachsturmbann "Eimann" - and at the beginning of August this self-named Sturmbann "Goetze" reached the peninsula at the mouth of the Vistula called the Danzig Westerplatte. There it hid on German ships, including the naval training ship Schleswig-Holstein.