| Saint-Astier | |
| Commune Status: | Commune |
| Arrondissement: | Marmande |
| Canton: | Les Coteaux de Guyenne |
| Insee: | 47229 |
| Postal Code: | 47120 |
| Mayor: | Céline Derouin[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays de Duras |
| Coordinates: | 44.73°N 0.2556°W |
| Elevation M: | 110 |
| Elevation Min M: | 57 |
| Elevation Max M: | 165 |
| Area Km2: | 9.56 |
Saint-Astier (in French pronounced as /sɛ̃.t‿astje/; Occitan (post 1500);: Sent Astier) is a commune in the Lot-et-Garonne department in south-western France.[2]