Kuolimo is a medium-sized lake in south-eastern Finland, in the municipalities of Savitaipale and Suomenniemi.

[1] Lake Kuolimo is closely linked to Finland's largest lake Saimaa, and discharges into it through two separate routes, featuring the rapids of Partakoski and Kärnänkoski.

It is inhabited by a relict population of the Arctic char.

The critically endangered fish lives only certain parts of southern Lake Saimaa, including Yövesi, Luonteri and Ruokovesi.

The original population lives only in Lake Kuolimo.