Vallée-Jonction (French pronunciation: [vale ʒɔ̃ksjɔ̃]) is a municipality in La Nouvelle-Beauce Regional County Municipality, in Quebec, Canada. It is part of the Chaudière-Appalaches region and had a population of 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.

In 1900, the parish of L'Enfant-Jésus was constituted, and part of its territory was detached in 1924 to form a village that has the same name but is known locally as Beauce-Junction, after the post office opened in 1883. The village changed its name to Vallée-Jonction in 1949. L'Enfant-Jésus and Vallée-Jonction amalgamated in 1989 to form the current municipality.

The following waterways pass through or are situated within the municipality's boundaries:

• Chaudière River a river with its source near the Town of Lac-Mégantic.
• Morency River a tributary of the east bank of the Chaudière River.

• Commission de toponymie du Québec
• Ministère des Affaires municipales, des Régions et de l'Occupation du territoire