Châteauvilain should not be confused with Châteauvillain.
| Châteauvilain | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Chateauvilain.svg |
| Arrondissement: | La Tour-du-Pin |
| Canton: | Bourgoin-Jallieu |
| Insee: | 38091 |
| Postal Code: | 38300 |
| Mayor: | Daniel Gaude[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CA Porte de l'Isère |
| Coordinates: | 45.5175°N 5.3308°W |
| Elevation M: | 500 |
| Elevation Min M: | 345 |
| Elevation Max M: | 644 |
| Area Km2: | 8.82 |
Châteauvilain (in French pronounced as /ʃɑtovilɛ̃/) is a commune in the Isère department in south-eastern France.