| Lake Segozero | |
| Pushpin Map: | Russia Karelia#Russia |
| Basin Countries: | Russia |
| Area: | 906km2 |
| Max-Depth: | 103m (338feet) |
Lake Segozero is a large freshwater lake in the Republic of Karelia, northwestern part of Russia. It is located at . The Segezha is a major outflow from Segozero and it empties to Vygozero. After the hydroelectric power plant was built on Segezha River the surface area of Segozero have risen from 815 km² to 906 km².