| Lake Roś | |
|---|---|
| sunset | |
| Location | Masurian Lake District, Poland |
| Primary inflows | Swięcek and Konopka |
| Primary outflows | Pisa |
| Basin countries | Poland |
| Surface area | 18.9 km² |
| Max. depth | 31.8 m |
Lake Roś (Polish: Jezioro Roś, German: Roschsee) is a lake in the Masurian Lake District of the Warmian-Masurian Voivodeship of Poland. This S-shaped glacial lake has an area of 18.9 km² and a depth of 31.8 meters. The Swięcek and Konopka rivers flow into the lake, while the Pisa River flows out of it. The largest town on the lake is Pisz.