| Grenzbach | |
| Mouth Location: | Darmühlenbach |
| Mouth Coordinates: | 52.2308°N 8.5225°W |
| Progression: | Darmühlenbach→ |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
Grenzbach is a river of North Rhine-Westphalia, Germany. It is 1.3 km long and a left tributary of the Darmühlenbach.[1]
It should not be confused with the ten other streams in North Rhine-Westphalia named Grenzbach. These are tributaries of the Bach vom Dachsberg, Gausbach, Rinderbach (Ruhr), Lippe, Schölsbach, Mühlengraben, Linnebach, Babenhauser Bach, Ostbach (Else) and Rhine.[1]