| Antagnac | |
| Commune Status: | Commune |
| Arrondissement: | Marmande |
| Canton: | Les Forêts de Gascogne |
| Insee: | 47010 |
| Postal Code: | 47700 |
| Mayor: | Jérémie Bezos[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Coteaux et Landes de Gascogne |
| Coordinates: | 44.3536°N 0.0094°W |
| Elevation M: | 147 |
| Elevation Min M: | 59 |
| Elevation Max M: | 168 |
| Area Km2: | 22.15 |
Antagnac (pronounced as /fr/; oc|Antanhac) is a commune in the Lot-et-Garonne department in southwestern France.