| Berner Au | |
| Mouth Location: | Wandse |
| Mouth Coordinates: | 53.5923°N 10.1157°W |
| Progression: | Wandse→ |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | Location |
| Subdivision Name2: | Hamburg |
| Length Km: | 8.3 |
Berner Au is a small river of Hamburg, Germany. It flows into the Wandse near Tonndorf (a district of Wandsbek).