Trittau (German pronunciationⓘ; West Low German: Trittow) is a municipality in Schleswig-Holstein, Germany, located 30 km east of Hamburg.

It is the economical and administrative center of Amt Trittau, which is part of the Stormarn district.

Other villages in the county are Grönwohld, Lütjensee, Großensee, Rausdorf and Grande.

Trittau is located close to the Hahnheide forest.

The Trittau village dates back to the 12th century.