| Dürnach | |
| Mouth Location: | Westernach |
| Mouth Coordinates: | 48.2591°N 9.8708°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Baden-Württemberg |
| Length: | 32.3km (20.1miles) |
Dürnach is a river of Baden-Württemberg, Germany. At its confluence with the Rottum near Laupheim, the Westernach is formed.