| Rotbach | |
|---|---|
 | |
 | |
| Location | |
| Country | Germany |
| State | North Rhine-Westphalia |
| Physical characteristics | |
| Mouth | |
• location | Erft |
• coordinates | 50°49′36″N 6°46′44″E / 50.8266°N 6.7790°E / 50.8266; 6.7790 |
| Length | 39.2 km (24.4 mi)1 |
Basin size | 236 km2 (91 sq mi)1 |
| Basin features | |
| Progression |
Erft→ Rhine→ North Sea |
Rotbach is a river of North Rhine-Westphalia, Germany. It is a left tributary of the Erft.
The source of the Rotback is located 1 km north of main town Kall nearly at the town border to Mechernich. The course reaches the town areas of Zülpich and Erftstadt.
Within the town area of Zülpich, the Vlattener Bach tributes into the Rotbach.