| Castelculier | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Castelculier 47.svg |
| Arrondissement: | Agen |
| Canton: | Le Sud-Est agenais |
| Insee: | 47051 |
| Postal Code: | 47240 |
| Mayor: | Olivier Grima[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Agglomération d'Agen |
| Coordinates: | 44.1756°N 0.6936°W |
| Elevation M: | 57 |
| Elevation Min M: | 49 |
| Elevation Max M: | 177 |
| Area Km2: | 14.95 |
Castelculier (in French pronounced as /kastɛlkylje/; Languedocien: Castelculhèr) is a commune in the Lot-et-Garonne department in south-western France.
The name of the village comes from the medieval fortress known as Chasteau Cullier. This castle was destroyed by the duke of Épernon in 1633 by order of Louis XIII, king of France.
The Séoune forms most of the commune's south-eastern border.
List of mayors since 1791 :
The town hall is located in the village of Grandfonds.
List of the lords of Castelculier