Hardt Castle
Schloss Hardt or Schloss Hart stands for:
- Hardt Castle (Großaitingen) in the Augsburg district
- Harter Schlössel in Naarn, Upper Austria
- Hart (Edling) Castle in Edling , Rosenheim district
- Hart Castle (Kindberg-Hadersdorf) , Styria
- Hardt Castle in Thal , Styria
