The Vieux Chaillol (French pronunciation: [vjø ʃajɔl]; Occitan: Vièlh Chalhòl) is a mountain in the Écrins National Park, located in Hautes-Alpes, southeastern France. It has an elevation of 3,163 Meters above sea level and forms a moderate to hard, full day hike from the starting point in the village of Chaillol 1600 or from the township of Saint-Michel-de-Chaillol.