Vallée-Jonction is a municipality in the Municipalité régionale de comté de la Nouvelle-Beauce in Quebec, Canada. It is part of the Chaudière-Appalaches region and the population is 1,864 as of 2021. In 1881, the Lévis and Kennebec Railway opened a train station between Sainte-Marie and Saint-Joseph-de-Beauce named Beauce-Jonction. When the Quebec Central Railway bought it in 1882, Beauce-Jonction became one of the most important train stations on the Lévis-Sherbrooke line.