Tunguska (Noun) — A river in Siberia that flows northwest to become a tributary of the Yenisei River.
Tunguska (Noun) — A river in southeastern Siberia that flows northwest from Lake Baikal to become a tributary of the Yenisei River.
Tunguska (Noun) — A river that arises to the north of Lake Baikal and flows north and west to the Yenisei River.