Kuytun (Uyghur: كۈيتۇن) or Kuitun (Chinese: 奎屯) is a county-level city with about 285,000 residents (2000 census) in Ili Kazakh Autonomous Prefecture, Xinjiang, China.

Kuytun has historically been associated with the 7th Xinjiang Agriculture Construction Division (兵团第七师), which ran the city until 1975 but still administers its Tianbei New Area.

The Chinese name Kuiteng (奎騰) first appeared in the official historical book History of Yuan, and referred to the Kuytun River.

According to legend, during Genghis Khan's campaign of westard expansion, some of his troops were stationed in the area in wintertime and commented on the cold weather by repeatedly shouting "kuytun!"

[2] At the latest in the 3rd century BC (Qin dynasty), the Saka people appeared in the place of present Kuytun area.

Kuytun was the 1st township of the 2nd district in Wusu County, and it had five unincorporated villages of Huanggou (黄沟), Tashikuitun (塔什奎屯), Kalasu (喀拉苏), Diankuitun (店奎屯) and Kaiganqi (开干其) under its administration.

On March 25, 1975, the XPCC was withdrawn, the 7th Division with agriculture and animal husbandry farms, and its owned industrial enterprises were devolved to the local administration.

On August 29, 1975, the county-level city of Kuytun was approved to establish from Karamay by the State Council, and it was under administration of Ili Autonomous Prefecture.

On September 10 of the same year, Kuitun City was officially established and the seat of Ili Autonomous Prefecture was moved to Kuytun from Yining.

Based on the Kuytun Bureau of Farms and Land Reclamation which was revoked, the 7th Division of XPCC (兵团农七师) was restored in April 1982.