Marienhagen
Marienhagen is the name of the following places:
- Marienhagen (Duingen) , district of Duingen in the district of Hildesheim in Lower Saxony
- Marienhagen (Vöhl) , part of the municipality of Vöhl in the Waldeck-Frankenberg district in Hesse
- Marienhagen (Wiehl) , part of the town Wiehl in the Oberbergisches Kreis in North Rhine-Westphalia
- Marienhagen in Pomerania, see Oświno , village in the powiat Stargardzki, West Pomeranian Voivodeship, Poland
- Marienhagen in East Prussia, see Semjonowo (Kaliningrad) , settlement in Gwardeisk Rajon, Kaliningrad Oblast, Russia