| Perlenbach | |
| Subdivision Type1: | Countries |
| Mouth Coordinates: | 50.5488°N 6.2309°W |
| Length: | 17.6km (10.9miles) |
Perlenbach is a river of North Rhine-Westphalia, Germany and eastern Belgium. Its source is in the Belgian High Fens, north of Büllingen. It is dammed up to create a lake, before flowing from the right into the Rur near Monschau.