| Palmbach | |
| Mouth Location: | Aar |
| Mouth Coordinates: | 50.2895°N 8.0642°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
| Length: | 10.5km (06.5miles) |
Palmbach is a river of Hesse and Rhineland-Palatinate, Germany. It flows into the Aar near Hahnstätten.