| Location | Kreis Segeberg, Schleswig-Holstein |
|---|---|
| Coords | 53°58′32″N 10°25′10″E |
| Inflow | Trave, Bißnitz |
| Outflow | Trave |
| Basin countries | Germany |
| Area | 3.6 km2 (1.4 sq mi) |
| Max-depth | 10.8 m (35 ft) |
Wardersee is a lake in Kreis Segeberg, Schleswig-Holstein, Germany. At its elevation, its surface area is 3.6 km².
The federal highway 432 crosses the lake in a west-east direction near the village of Warder .