| Teuillac | |
| Commune Status: | Commune |
| Arrondissement: | Blaye |
| Canton: | L'Estuaire |
| Insee: | 33530 |
| Postal Code: | 33710 |
| Mayor: | Jean-Franck Blanc[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Grand Cubzaguais |
| Coordinates: | 45.0933°N -0.5467°W |
| Elevation M: | 20 |
| Elevation Min M: | 22 |
| Elevation Max M: | 86 |
| Area Km2: | 7.15 |
Teuillac (pronounced as /fr/) is a commune in the Gironde department in Nouvelle-Aquitaine in southwestern France.