| Rißbach | |
| Mouth Coordinates: | 47.5583°N 11.4333°W |
| Subdivision Type1: | Countries |
| Subdivision Type2: | States |
| Length: | 29.7km (18.5miles) |
| Basin Size: | 217km2 |
Rißbach is a river of Tyrol, Austria and Bavaria, Germany. Its source is in the Karwendel mountains in Austria. It passes through the valley, and flows into the Isar in, Lenggries, Germany.