| Frontenac | |
| Commune Status: | Commune |
| Arrondissement: | Langon |
| Canton: | L'Entre-Deux-Mers |
| Insee: | 33175 |
| Postal Code: | 33760 |
| Mayor: | Josette Mugron[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.7389°N -0.1611°W |
| Elevation M: | 30 |
| Elevation Min M: | 24 |
| Elevation Max M: | 105 |
| Area Km2: | 14.4 |
Frontenac (in French pronounced as /fʁɔ̃tnak/) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.