| Castillon-Savès | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Castillon-Savès (Gers).svg |
| Arrondissement: | Auch |
| Canton: | Val de Save |
| Insee: | 32090 |
| Postal Code: | 32490 |
| Mayor: | Julien Délix[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 43.5706°N 0.9864°W |
| Elevation M: | 214 |
| Elevation Min M: | 147 |
| Elevation Max M: | 246 |
| Area Km2: | 11.96 |
Castillon-Savès (in French pronounced as /kastijɔ̃ savɛs/; Occitan (post 1500);: Castilhon de Savés) is a commune in the Gers department in southwestern France.