The Alazeya (Russian: Алазея; Yakut: Алаһыай, romanized: Alahıay) is a river in the northeastern part of Yakutia, Russia which flows into the Arctic between the basins of the larger Indigirka to the west and the Kolyma to the east. Mount Kisilyakh-Tas is a notable kigilyakh site on the right bank of the Alazeya River at 69°42′N 155°0′E.
