Nikolassee is a locality of Berlin in the borough of Steglitz-Zehlendorf, named after the small Nikolassee lake. Located in the affluent Southwest of the city, the area comprises parts of the Schlachtensee neighbourhood and the eastern shore of the Großer Wannsee lake with the large Strandbad Wannsee lido, as well as the islets of Schwanenwerder and Lindwerder.