|Surface area||712.59 km²|
|Surface elevation||75.7 m|
|Settlements||Punkaharju, Savonlinna, Sulkava|
Pihlajavesi is a lake in Finland. The area of the lake is 712.59 km², making it the sixth largest lake in the country. Pihlajavesi is the second-largest basin in the complex Saimaa lake system. Pihlajavesi lacks large open lake areas but has more islands than any other lake in Finland.