| Brotenaubach | |
| Source1 Location: | Wildsee and Mannsloh |
| Source1 Coordinates: | 48.7183°N 8.4592°W |
| Mouth Location: | Eyach |
| Mouth Coordinates: | 48.7568°N 8.4842°W |
| Progression: | Eyach→ |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Baden-Württemberg |
| Length: | 7.1km (04.4miles) |
| Source1 Elevation: | 930m (3,050feet) |
| Mouth Elevation: | 570m (1,870feet) |
The Brotenaubach is a river in Baden-Württemberg, Germany. At its confluence with the Dürreych west of Bad Wildbad, the Eyach is formed.