| Zwönitz | |
| Mouth Coordinates: | 50.7897°N 12.9239°W |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Saxony |
The Zwönitz is a river in Saxony, Germany, being the right source river of the Chemnitz river, which it joins near the city of Chemnitz.