| North Rhine-Westphalia|
| 4 km|
Lollenbach is a stream of North Rhine-Westphalia, Germany. It spring is between Bürenbruch (a part of Ergste) and Letmathe. The stream has a length of 4,034 m. Near Reingsen, a part of Schwerte, Lollenbach and Reingser Bach merge to form the Elsebach. Lollenbach is used as a supplier of water for a small fish pond.