| Grabenbach | |
| Mouth Coordinates: | 47.9931°N 9.1158°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
Grabenbach is a river of Baden-Württemberg, Germany.
The Grabenbach is a left tributary of the Ablach in Meßkirch. During its course, it changed its name several times: Dorfbach, Talbach, Weiherbach, Mühlenbach, Stadtbach, Grabenbach; in former times partly also Heudorfer Bach; this is also how it is called on its entire length by Baden-Württemberg's authority for water protection.