| Erlau | |
| Source1 Location: | Erlauzwieseler See |
| Mouth Coordinates: | 48.5624°N 13.5814°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Bavaria |
| Length: | 33.7km (20.9miles) |
| Mouth Elevation: | 290m (950feet) |
| Basin Size: | 218km2 |
Erlau is a river of Bavaria, Germany. It flows into the Danube in the village Erlau.