The castle of Castelbouc (French: Château de Castelbouc) is a ruin of a medieval castle located in the French municipality of Sainte-Enimie. This castle is a protected historical monument and is situated in the Lozère department, within the Languedoc-Roussillon region. Perched above the village of Castelbouc, it overlooks the Gorges du Tarn.
The castle was originally constructed in the 12th century by Etienne de Castelbouc, a vassal of Elie de Montbrun, the provincial commander of the Knights Templar. However, during the 16th century, the états particuliers (French Provincial Estates-General) of the Gévaudan province ordered the destruction of several castles in the region. These castles had served as hiding places for Protestant Huguenots during the Wars of Religion. As a result, Castelbouc was demolished in 1592