| Sainte-Gemme | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Sainte-Gemme (Charente-Maritime).svg |
| Arrondissement: | Saintes |
| Canton: | Saint-Porchaire |
| Insee: | 17330 |
| Postal Code: | 17250 |
| Mayor: | Philippe Gachet[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 45.7722°N -0.8875°W |
| Elevation M: | 35 |
| Elevation Min M: | 7 |
| Elevation Max M: | 44 |
| Area Km2: | 40.91 |
Sainte-Gemme (in French pronounced as /sɛ̃t ʒɛm/) is a commune in the Charente-Maritime department in southwestern France.