Football Club Sochaux-Montbéliard (; commonly referred to as FCSM or simply Sochaux) is a French association football club based in the city of Montbéliard. ###>Le Football Club Sochaux-Montbéliard, couramment abrégé en "FC Sochaux" ou "FCSM", est un club de football français basé à Montbéliard en Franche-Comté.