| Schwarzach | |
| Subdivision Type1: | Countries |
| Mouth Coordinates: | 49.3934°N 12.1529°W |
| Length: | 95km (59miles) |
| Basin Size: | 841km2 |
Schwarzach (Czech: Nemanický potok) is a river of Czech Republic and Bavaria, Germany. It is a left tributary of the Naab. It passes through Waldmünchen, Rötz and Neunburg vorm Wald, and flows into the Naab near Schwarzenfeld.