- Source: Grubenhagen Castle
- Grubenhagen Castle
- Grubenhagen Castle (Einbeck)
- Grubenhagen Castle (Vollrathsruhe)
- Grubenhagen
- Principality of Grubenhagen
- Ernest I, Duke of Brunswick-Grubenhagen
- Henry IV, Duke of Brunswick-Grubenhagen
- List of castles and palaces in Lower Saxony
- Ernest III, Duke of Brunswick-Grubenhagen
- Philip I, Duke of Brunswick-Grubenhagen
Grubenhagen Castle is the name of the following castles in Germany:
Grubenhagen Castle (Einbeck), a ruined castle near Einbeck, Lower Saxony
Grubenhagen Castle (Vollrathsruhe), a ruined castle in Schloß Grubenhagen, Mecklenburg-Western Pomerania