The Koryak Mountains or Koryak Highlands (Russian: Корякское нагорье) are an area of mountain ranges in Far-Eastern Siberia, Russia, located in Chukotka Autonomous Okrug and in Kamchatka Krai, with a small part in Magadan Oblast.

The highest point in the system is the 2,562-metre high (8,406 ft) Mount Ledyanaya, located in the Ukelayat Range,[2] in the central part of the mountains.

[3] The Koryak Mountains rise south of the Anadyr River, and northeast of the Kamchatka Peninsula.

The Koryak Highlands are one of the largest glacial systems in the northern part of the Russian Far East.

There are numerous glaciers and ice fields in some of the ranges, with a total surface of 303.5 km2 (117.2 sq mi).