|Country||People's Republic of China|
|• Total||910.5 km2 (351.5 sq mi)|
|• Density||84/km2 (220/sq mi)|
|Time zone||China Standard (UTC+8)|
Beitun (Chinese: 北屯; pinyin: Běitún) is a city in the north of Xinjiang, People's Republic of China. Administratively, it is a county-level city under the direct administration of the regional government, though it is geographically located in Altay Prefecture.
Beitun City covers an area of 910.5 square kilometres (351.5 sq mi) and has a population of 76,300. The city is located on the Irtysh River. Its name comes from the accolade "China's northernmost cultivation land" (Chinese: 中国最北的屯垦重地; pinyin: Zhōngguó zuìběi de túnkěn zhòngdì).
As a terminus of the Kuytun–Beitun Railway, Beitun is an important transportation hub between Mongolia, northern Xinjiang, and Kazakhstan. Beitun Station, located a few kilometers southwest of the city center ( ), has direct passenger railway service from Urumqi.