| Windach | |
| Mouth Coordinates: | 48.0809°N 11.1329°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | State |
| Subdivision Name2: | Bavaria |
| Length: | 35.8km (22.2miles) |
| Basin Size: | 129km2 |
Windach is a river of Bavaria, Germany. It flows into the Amper near Eching am Ammersee.