| Lake Niegocin | |
| Coords: | 53.9833°N 21.7847°W |
| Type: | glacial |
| Basin Countries: | Poland |
| Islands: | 2 |
| Pushpin Map: | Warmian-Masurian Voivodeship#Poland |
Lake Niegocin is a lake in the Masurian Lake District of Poland's Warmian-Masurian Voivodeship. It is the seventh largest lake in Poland, with an area of 26.04km2. Maximum depth is 39.7m (130.2feet); average is 9.9m (32.5feet).[1]