| Herfabach | |
| Source1 Coordinates: | 50.8842°N 9.8694°W |
| Mouth Coordinates: | 50.8736°N 9.9939°W |
| Subdivision Type1: | Country |
| Length Km: | 11.3 |
| Basin Size Km2: | 39.9 |
| Tributaries Left: | Eitzeröder water |
Herfabach is a river located in Hersfeld-Rotenburg, Hesse, Germany. in length, it is a west tributary of the Werra. It has a river basin area of 40.011 km ².[1]