| Ransbach | |
| Mouth Coordinates: | 50.2013°N 10.2526°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Bavaria |
| Length: | 13.6km (08.5miles) |
Ransbach is a river of Bavaria, Germany. It is a right tributary of the Lauer near Poppenlauer.