Chadenac (French pronunciation: [ʃadnak]) is a commune in the Charente-Maritime department in the Nouvelle-Aquitaine region, in the former province of Saintonge in southwestern France.

Chadenac has a notable romanesque church and a small museum containing Merovingian and Roman artefacts.

It lies 8 km from Jonzac and 9 km from Pons off the D142 road, close to the Way of St. James.

Inhabitants are known as Chadenacais (M) and Chadenacaises (F) in French.

This Charente-Maritime geographical article is a stub.