The Changbai Mountain Range (also called Šanggiyan Mountain Range) or Jangbaek Mountain Range (also called Ohnan Mountains) are a mountain range on the border between China and North Korea (41°41' to 42°51'N; 127°43' to 128°16'E). In Russia this range is called "Vostochno-Manchzhurskie gory" ("East Manchurian mountain range") and considered as a part of more long Manchu-Korean mountain range ("Manchzuro-Koreiskie gory"), which separates China from Korea and Russian Primorsky Krai. The range extends from the Northeast Chinese provinces of Heilongjiang, Jilin and Liaoning to the North Korean provinces of Ryanggang and Chagang. Most peaks exceed 2,000 metres in height, with the highest mountain being Baekdu Mountain.

The range represents the mythical birthplace of Bukūri Yongšon, ancestor of Nurhaci and the Aisin Gioro Imperial family, who were the founders of the Manchu state and the Chinese Qing Dynasty. The name literally means "Perpetually White Mountain Region" in Mandarin Chinese.

Changbaishan Nature Reserve, established in 1960, was involved in the UNESCO's "Man and Biosphere" program in 1980 and becomes part of the world's biosphere reserves. Approved by the State Council in 1986, it becomes a State-level reserve.