Barbençon is a village in Wallonia, Belgium. It is part of the municipality of Beaumont in the Hainaut Province. The village is a member of the association Les Plus Beaux Villages de Wallonie.
From c. 1400, glass was produced in the village. In 1559 a larger glass factory was established here, active until around 1750. From 1678 until 1815 the village belonged to France. The village church dates from the 12th century and has a richly sculpted portal. There are remnants of medieval ramparts and a château from the Napoleonic era in the village, and a preserved fortified farm from the 17th century.