The Yana-Oymyakon Highlands (Russian: Яно-Оймяконское нагорье, romanized: Yano-Oymyakonskoye Nagorye; Yakut: Дьааҥы хаптал хайалара),[1] also known as Oymyakon Highlands (Russian: Оймяконское нагорье, romanized: Oymyakonskoye Nagorye),[2] are a mountainous area in the Sakha Republic, Khabarovsk Krai and Magadan Oblast, Far Eastern Federal District, Russia.

The highlands include the Kuydusun and Agalkin intermontane basins, as well as mountain chains of moderate altitude, such as the Nelgesin and Tirekhtyakh ranges.

The main towns are Oymyakon and Verkhoyansk, the latter close to the northwestern end of the highland area.

[5] The upper course of the Yana River flows through the northwestern part of the Yana-Oymyakon Highlands with its following tributaries: Bytantay, Dulgalakh, Sartang, Adycha, Borulakh, Nelgese, Derbeke and Charky, among others.

The Delinya, a right tributary of the Tompo —part of the Lena basin, flows from the central part of the highlands, and the Indigirka River flows in the southeastern part with its tributaries Tuora-Yuryakh, Kuydusun, Agayakan, Kyuyente, Elgi, and other minor ones.