| Aitrach | |
| Pushpin Map: | Germany |
| Pushpin Map Caption: | Location of mouth |
| Mouth Coordinates: | 47.9243°N 8.6759°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Baden-Württemberg |
| Length: | 15.9km (09.9miles) |
The Aitrach is a river in Baden-Württemberg, Germany. It is a right tributary of the Danube, which it joins near Geisingen.