| Liebenstein Castle | |
| Native Name: | Burg Liebenstein |
| Map Type: | Thuringia#Germany |
| Coordinates: | 50.7697°N 10.8529°W |
| Location: | Liebenstein, Germany |
| Type: | castle |
Liebenstein Castle (German: Burg Liebenstein) is a castle in Liebenstein in the Ilm-Kreis, Thuringia, Germany. It was originally built in the 12th century by the counts of Käfernburg; the castellans were the counts' ministeriales, the lords of Liebenstein.
The castle was extensively reconstructed in the 16th century, and subsequently used as a quarry for building-stone.