Schönhagen may refer to:
Germany
- Schönhagen, Thuringia, in the Eichsfeld district, Thuringia
- , in the Teltow-Fläming district, Brandenburg
- A locality in Uslar, Lower Saxony
- A locality in Brodersby, Rendsburg-Eckernförde, Schleswig-Holstein
- Schönhagen Airport, Brandenburg
Poland
- the former German name of Osina, Goleniów County, Poland