| Petruma | |
| Pushpin Map: | Finland |
| Location: | Heinävesi |
| Coords: | 62.498°N 28.814°W |
| Catchment: | Vuoksi |
| Basin Countries: | Finland |
| Area: | 11.024km2 |
| Shore: | 44.64km (27.74miles) |
| Elevation: | 89.4m (293.3feet) |
| Frozen: | December–April |
Petruma is a medium-sized lake in the Vuoksi main catchment area. It is located in the region of North Karelia in Finland. Petruma is also the name of a nearby village in the municipality of Heinävesi.[1]