Ottenstein Castle (disambiguation)
Ottenstein Castle stands for:
- Ottenstein Castle , also Ottenstein Castle , castle in Lower Austria
- Ottenstein Castle (Ahaus) , lost castle in Ahaus, North Rhine-Westphalia
- Castle Ottenstein (Wittlich) , lost castle in Wittlich, Rhineland-Palatinate
- Ottenstein Castle (Wolfenbüttel) , lost castle in Wolfenbüttel, Lower Saxony