The Château d'Entrechaux is a ruined castle in the commune of Entrechaux in the Vaucluse département of France. The castle stands on a rocky peak above the village and is undergoing restoration. From the site, there is a good view of the village and of the surrounding area, extending to the castles at Crestet and Beaumont-du-Ventoux. Entrechaux, the Château de Crestet and the Château de Beaumont-du-Ventoux formed an effective lookout network. The castle is private property. Visits are possible during the summer.