Aumühle is a municipality in Schleswig-Holstein, about 21 km east of Hamburg.
Aumühle lies at the river Bille
in the Sachsenwald, the largest forest in Schleswig-Holstein.
In 1350 Aumühle was first recorded as "Au-Mühle" (Mill on the black Au).
In 1871 Kaiser Wilhelm I of Germany gave the Sachsenwald to Otto von Bismarck in recognition of his services to Germany.
In 1884 a train stop "Aumühle" on the railroad Hamburg-Berlin was created, the construction of a train station started in 1909. Neighboring Friedrichsruh already had a train station in 1850, which was commonly used by Otto von Bismarck.
Karl Dönitz, a convicted war criminal, moved to Aumühle after his release from Spandau Prison in 1956. He remained there until his death.
Aumühle is twinned with: