Horneburg is a municipality southwest of Hamburg (Germany) in the district of Stade in Lower Saxony.

In 1648 the Prince-Archbishopric was transformed into the Duchy of Bremen, which was first ruled in personal union by the Swedish and from 1715 on by the Hanoverian Crown.

300 Hungarian women coming from a subcamp of Groß Rosen and Auschwitz were transported to Horneburg on February 24, 1945.

[3] On October 22, 1997 a memorial stone with a plaque were installed at the location of the camp, at the street crossing Vordamm/Auedamm, Horneburg.

[3] The rapid transit system of Hamburg S-Bahn—with the trains of the line S3—and the regional rail serve Horneburg at the railway station.