| Oelsabach | |
| Mouth Coordinates: | 50.9606°N 13.6408°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | States |
| Subdivision Name2: | Saxony |
The Oelsabach is a river of Saxony, Germany. It is a right tributary of the Rote Weißeritz, which it joins in Rabenau.