Le Chamossaire is a mountain part of the Alpes Vaudoises, overlooking Villars-sur-Ollon on its south face and Les Ormonts valley on its north face. It is located in the canton of Vaud. The mountain is part of Villars ski area and its summit is easily accessible from Bretaye with the Bex–Villars–Bretaye railway and then a fast chairlift.