| Grézac | |
| Commune Status: | Commune |
| Arrondissement: | Saintes |
| Canton: | Saintonge Estuaire |
| Insee: | 17183 |
| Postal Code: | 17120 |
| Mayor: | Bernard Pourpoint[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Royan Atlantique |
| Coordinates: | 45.605°N -0.8397°W |
| Elevation Min M: | 11 |
| Elevation Max M: | 54 |
| Area Km2: | 20.06 |
Grézac (in French pronounced as /ɡʁezak/) is a commune in the Charente-Maritime department in southwestern France.