| Rätzsee | |
| Location: | Mecklenburgische Seenplatte, Mecklenburg-Vorpommern |
| Pushpin Map: | Mecklenburg-Vorpommern |
| Coords: | 53.2417°N 12.8869°W |
| Inflow: | Müritz–Havel–Wasserstraße über die Oberbek |
| Outflow: | Drosedower Bek |
| Basin Countries: | Germany |
| Area: | 2.92km2 |
| Max-Depth: | 20m (70feet) |
| Elevation: | 57.5m (188.6feet) |
Rätzsee is a lake in the Mecklenburgische Seenplatte district in Mecklenburg-Vorpommern, Germany. At an elevation of 57.5 m, its surface area is 2.92 km2.