| Siechenbach | |
| Mouth Location: | Bächingen an der Brenz, Germany |
| Mouth Coordinates: | 48.5502°N 10.3047°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
Siechenbach is a river of Baden-Württemberg, Germany. It is a right tributary of the Brenz in Bächingen an der Brenz.