| Aue | |
| Pushpin Map: | Lower Saxony |
| Pushpin Map Caption: | Location of the mouth |
| Mouth Location: | Leine |
| Mouth Coordinates: | 51.8419°N 9.9683°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Lower Saxony |
| Length: | 22.6km (14miles) |
Aue (in its upper course: Kneppelbach) is a river of Lower Saxony, Germany. It flows into the Leine near Kreiensen.