The Château de Ventadour is a ruined castle in the commune of Tournon-sur-Rhône in the Ardèche département of France.
Situated to the south east of Meyras, the castle has architectural elements dating from the 11th, 12th, 15th and 16th centuries.
The Solignacs left at the end of the 14th century, and in 1472 the lord of Meyras married Blanche de Ventadour.
According to research works on site and a paper by Georges Grégoire, the oldest part of the castle is the square keep.
The square tower in the south west corner is topped by two bartizans dating from work carried out in the 14th century.