Heidensee
Heidensee is a water and place name:
- Heidensee (Holstein) , lake near Plön in Schleswig-Holstein
- Heidensee (Karow) , lake near Karow in Mecklenburg-Western Pomerania
- Heidensee (Schwerin) , lake in Schwerin in Mecklenburg-Western Pomerania
- Heidensee , until 1938 Schillinnen , Goldap district, East Prussia, since 1945: Szyliny , village in the powiat Gołdapski, Warmian-Masurian Voivodeship, Poland