Siek is a municipality in the district of Stormarn in Schleswig-Holstein, Germany. It is situated approximately 6 kilometres southeast of Ahrensburg, and 24 kilometres northeast of Hamburg. Siek is the seat of the Amt Siek.
Wikipedia https://en.wikipedia.org/wiki/Siek,_Holstein
Coordinates 53°38'5.867" N 10°17'52.185" E