| Kellersee | |
|---|---|
 The Kellersee between 1890 and 1905 | |
  Kellersee | |
| Coordinates | 54°10′20″N 10°35′40″E / 54.17222°N 10.59444°E |
| Primary inflows | Schwentine |
| Primary outflows | Schwentine |
| Surface area | 5.6 km2 (2.2 sq mi) |
| Max. depth | 27 m (89 ft) |
| Surface elevation | 24 m (79 ft) |
| Settlements | Malente, Eutin-Fissau |
The Kellersee () is a lake in the Holstein Switzerland region of North Germany. It lies east of the village of Malente on the River Schwentine, has an area of 560 hectares (1,400 acres), is up to 27 metres deep and lies at a height of 24 m above sea level (NN). Southeast of the lake is the village of Fissau in the borough of Eutin.