Dulgalakh(Russian: Дулгалах), Yakut: Дулҕалаах is a river in Yakutia, a left tributary of Yana River. Length -507 km (315 mi), basin size - 27,300 square kilometres (10,541 sq mi).
It rises on the northern slopes of Verkhoyansk Range. Flows through Kobyaysky and Verkhoyansky districts. Above Verkhoyansk it merges with Sartang River, forming Yana.
