| Johannisbach | |
| Mouth Location: | Pau |
| Mouth Coordinates: | 50.776°N 6.0891°W |
| Progression: | Pau→ |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
Johannisbach is a stream in North Rhine-Westphalia, Germany. It flows through Aachen, merges with the Pau and the Paunell and then discharges into the river Wurm.