Kisilyakh-Tas (Russian: гора Кисилях-Тас) is a mountain in Yakutia, Far Eastern Federal District, Russia.

[6] Mount Kisilyakh-Tas is a small, isolated mountain massif of the Kolyma Lowland, located 40 kilometers (25 mi) east of the Suor Uyata range.

It rises above the tundra on the right bank of the Alazeya, roughly 160 kilometres (99 mi) south of the river's mouth in the shores of the East Siberian Sea.

[4] Kisilyakh-Tas is located in a flat area, where there are only two other mountains nearby, a higher one to the SW and a smaller one to the west, both on the other side of the river.

[1] Andryushkino, the only inhabited place nearby, is located 60 kilometers (37 mi) to the SSW of Kisilyakh-Tas mountain, up the Alazeya.