| Dornbach | |
| Mouth Location: | Eschbach |
| Mouth Coordinates: | 50.2208°N 8.6265°W |
| Progression: | Eschbach→ |
| Subdivision Type1: | Country |
| Length: | 9.9km (06.2miles) |
Dornbach (in its upper course: Kaltes Wasser) is a river of Hesse, Germany. It flows into the Eschbach in Bad Homburg vor der Höhe.