| Wieseth | |
| Mouth Coordinates: | 49.1703°N 10.6487°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Bavaria |
| Length: | 31.8km (19.8miles) |
| Basin Size: | 127km2 |
Wieseth is a river in Bavaria, Germany. It flows into the Altmühl near Ornbau.