| Saint-Gilles | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Saint-Gilles (Ille-et-Vilaine).svg |
| Coordinates: | 48.1544°N -1.8244°W |
| Insee: | 35275 |
| Postal Code: | 35590 |
| Arrondissement: | Rennes |
| Canton: | Melesse |
| Mayor: | Philippe Thébault[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Rennes Métropole |
| Elevation Min M: | 34 |
| Elevation Max M: | 96 |
| Area Km2: | 20.72 |
Saint-Gilles (in French pronounced as /sɛ̃ ʒil/; ; Gallo: Saent-Jill) is a commune in the Ille-et-Vilaine department in Brittany in northwestern France.
Inhabitants of Saint-Gilles are called saint-gillois in French.