| Chadenac | |
| Commune Status: | Commune |
| Arrondissement: | Jonzac |
| Canton: | Pons |
| Insee: | 17078 |
| Postal Code: | 17800 |
| Mayor: | Patrick Chatelain[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Haute-Saintonge |
| Coordinates: | 45.5422°N -0.4408°W |
| Elevation Min M: | 32 |
| Elevation Max M: | 112 |
| Area Km2: | 14.11 |
Chadenac (in French pronounced as /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.