| Ronchaux | |
| Commune Status: | Commune |
| Coordinates: | 47.0531°N 5.8994°W |
| Insee: | 25500 |
| Postal Code: | 25440 |
| Arrondissement: | Besançon |
| Canton: | Saint-Vit |
| Mayor: | Sylvie Lheritier[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Loue-Lison |
| Elevation Min M: | 283 |
| Elevation Max M: | 593 |
| Area Km2: | 5.24 |
Ronchaux (in French pronounced as /ʁɔ̃ʃo/) is a commune in the Doubs department in the Bourgogne-Franche-Comté region in eastern France.
Ronchaux lies 6km (04miles) from Quingey on the banks of the Bief de Caille, a stream that issues from the Mittonière cave.