| Jarnac-Champagne | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Jarnac-Champagne (Charente-Maritime).svg |
| Arrondissement: | Jonzac |
| Canton: | Jonzac |
| Insee: | 17192 |
| Postal Code: | 17520 |
| Mayor: | Christelle Neau[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC de la Haute Saintonge |
| Coordinates: | 45.5597°N -0.3986°W |
| Elevation M: | 67 |
| Elevation Min M: | 37 |
| Elevation Max M: | 81 |
| Area Km2: | 21.95 |
Jarnac-Champagne (in French pronounced as /ʒaʁnak ʃɑ̃paɲ/) is a commune in the Charente-Maritime department in southwestern France.