The
Tym River is a river on the island of
Sakhalin,
Russia, and the second longest river on the island after the
Poronai River. The name of the river is translated from
Nivkh as "spawning river." The river flows through
Tymovsky and
Nogliki Districts of
Sakhalin Oblast. It begins on the southern slopes of Mount Lopatin in the East Sakhalin Mountains, flows through swampy lowlands in the Tym-Poronaiskaya Valley, and finally flows into Nyisky Bay in the
Sea of Okhotsk. The villages of
Tymovskoye and
Nogliki are located beside the river.