| Klosterbach | |
| Mouth Coordinates: | 48.6494°N 10.6925°W |
| Subdivision Type1: | Country |
| Subdivision Type2: | States |
| Length: | 34.4km (21.4miles) |
| Basin Size: | 147km2 |
Klosterbach is a river of Baden-Württemberg and Bavaria, Germany. It is left a tributary of the Danube near Schwenningen.
One of its tributaries is the Nebel (German Nebelbach), which played a tactical role in the Battle of Blenheim and is often mentioned in accounts of that battle.[1]