Lake Tolvajärvi (Russian: Толваярви; Finnish: Tolvajärvi) is a group of lakes in the Republic of Karelia, in the Ladoga Karelia.

Before the Winter War, the lake was part of the Korpiselkä municipality.

[1] During the war the area was a scene of the battle of Tolvajärvi.

The Tolvajärvi area also served as a battlefield during the Continuation War.

This Republic of Karelia location article is a stub.