| Rotbach | |
| Mouth Coordinates: | 48.0992°N 9.7951°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 15.2km (09.4miles) |
Rotbach is a river of Baden-Württemberg, Germany. It is a left tributary of the Riss; the confluence is in the town of Biberach an der Riss.