| Bietnitz | |
| Mouth Location: | Binnensee |
| Mouth Coordinates: | 53.6042°N 11.5527°W |
| Progression: | Binnensee→ |
| Subdivision Type1: | Country |
| Subdivision Name1: | Germany |
| Subdivision Type2: | State |
| Subdivision Name2: | Mecklenburg-Vorpommern |
Bietnitz is a river of Mecklenburg-Vorpommern, Germany.[1] It flows into the Binnensee in Pinnow. The Binnensee is drained via the Mühlensee and the Mühlenfließ to the Warnow.