Konstanzer Ach
| Konstanzer Ach | |
|---|---|
| Location | |
| Country | Germany |
| State | Bavaria |
| Physical characteristics | |
| Mouth | |
• location | Iller |
• coordinates | 47°34′07″N 10°14′01″E / 47.5685°N 10.2336°E |
| Length | 21.3 km (13.2 mi) |
| Basin features | |
| Progression | Iller→ Danube→ Black Sea |
Konstanzer Ach is a river of Bavaria, Germany. It passes through the Großer Alpsee, and flows into the Iller in Immenstadt.