| Siechenbach | |
| Mouth Location: | Beckum, North Rhine-Westphalia, Germany |
| Mouth Coordinates: | 51.7581°N 8.0481°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
Siechenbach is a small river in Beckum, North Rhine-Westphalia, Germany. It is a left tributary of the Kollenbach, the upper course of the Werse.