| Rognon | |
| Pushpin Map: | France#France Bourgogne-Franche-Comté |
| Subdivision Type1: | Country |
| Subdivision Name1: | France |
| Mouth: | Scey |
| Progression: | Scey→ |
| Length: | 18.8km (11.7miles) |
The Rognon is an 18.8 km long river in Haute-Saône department, eastern France. It rises in Magny-Danigon and flows generally southwest to join the Scey in Beveuge. Its tributaries include the Clairegoutte and the Fau.