| Estillac | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Estillac.svg |
| Arrondissement: | Agen |
| Canton: | L'Ouest agenais |
| Insee: | 47091 |
| Postal Code: | 47310 |
| Mayor: | Jean-Marc Gilly[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Agglomération d'Agen |
| Coordinates: | 44.1575°N 0.5653°W |
| Elevation M: | 150 |
| Elevation Min M: | 54 |
| Elevation Max M: | 164 |
| Area Km2: | 7.94 |
Estillac (pronounced as /fr/; oc|Estilhac) is a commune in the Lot-et-Garonne department in south-western France.