| Saint-Gelais | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Gelais 79.svg |
| Arrondissement: | Niort |
| Canton: | La Plaine Niortaise |
| Insee: | 79249 |
| Postal Code: | 79410 |
| Mayor: | Gérard Bobineau[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Niortais |
| Coordinates: | 46.3836°N -0.3886°W |
| Elevation M: | 64 |
| Elevation Min M: | 30 |
| Elevation Max M: | 93 |
| Area Km2: | 16.40 |
Saint-Gelais is a commune in the Deux-Sèvres department in western France.