Itter is a river of Hesse and of North Rhine-Westphalia, Germany. It is a left tributary of the Diemel. It flows through Willingen.
| Itter | |
|---|---|
 | |
| Location | |
| Country | Germany |
| States | |
| Physical characteristics | |
| Mouth | |
• location | Diemelsee |
• coordinates | 51°21′59″N 8°41′11″E / 51.36639°N 8.68639°E |
| Length | 19.3 km (12.0 mi) [1] |
| Basin features | |
| Progression | Diemel→ Weser→ North Sea |