The Wusun Mountains or Ketmen Mountains are a small range in the central part of the Tianshan Mountains. They lie north of the Tekes River valley and south of the main Ili River valley in southeastern Kazakhstan and in western Xinjiang Province, China. The highest point is Baishi Peak (), about above sea level.
is the pinyin form of the Chinese name written in traditional characters and in simplified ones, taken from the ancient Wusun people. It is sometimes distinguished as particularly the Chinese part of the range, the Kazakh area being the Ketmen Ridge.
The mountains have also been known as the (), (, "Black Mountain"), (, "Iron-Bearing" or "Producing"), and (, "South" or "Southern Mountains").