Vaux () or Vaux-en-Couhé () is a former commune in the Vienne department in the Nouvelle-Aquitaine region in western France. On 1 January 2019, it was merged into the new commune Valence-en-Poitou.Arrêté préfectoral 22 November 2018

Its inhabitants are called the Valois and Valoises. It covered 25.8 km2 and had 786 inhabitants in 2022. Surrounded by the communes of Chatillon, Romagna and Ceaux-en-Couhé, Vaux is located 33 km southwest of Poitiers, the largest city nearby.

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