| Mittelbach | |
| Mouth Location: | Werre |
| Mouth Coordinates: | 52.2089°N 8.7782°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Length: | 8.2km (05.1miles) |
Mittelbach is a river of North Rhine-Westphalia, Germany. It flows into the Werre near Bad Oeynhausen.