Château de Sévérac, Medieval fortress in Sévérac-d'Aveyron, France.

Château de Sévérac is a ruined 13th-century fortress in Sévérac-d'Aveyron, Aveyron. Its light grey stone walls link a cylindrical tower with a conical roof to a squarer tower with rougher masonry; three red banners with white symbols hang along the crenellated wall. Inside are a fortified enclosure, a chapel dedicated to Saint John the Baptist, stables, and a ramp leading to a rectangular hall restored in the 16th century.

The castle belonged in the Middle Ages to the barons of Sévérac, a family that died out at the end of the 12th century; its name passed to the Caylus and then, in 1427, to the house of Arpajon. Louis Arpajon (1590-1679) modernised it with the help of a Florentine architect, Gargioli. The roof collapsed in 1921 and the building was classified as a monument historique in 1922; the commune bought it in 1970.

The castle's chapel, dedicated to Saint John the Baptist, displays an exhibition of medieval costumes, and troubadour music recitals with demonstrations of period instruments are held there. In summer, evening sound-and-light shows are staged in the courtyard by the association Mémoires de Sévérac. In 2024 the courtyard hosted a six-hour production of Victor Hugo's Cromwell, with 22 professional actors among more than 45 participants.

The castle stands in ruins on the heights of Sévérac-d'Aveyron and is visible from the A75 motorway. Guided tours are offered in summer, and since 2022 sound-and-light shows take place in the evening in the cour d'honneur. The south facade, the salle des hommages and the stair tower were restored between 2012 and 2017, and the chapel roof was redone in 2018-2019.

In 2024 the castle hosted the first near-complete staging of Victor Hugo's play Cromwell, reputedly unperformable because of its length. With intervals and a meal it ran six hours and involved more than 45 people, among them 22 professional actors and about ten amateurs. A second performance followed in August 2025.