The Dzungar genocide (Chinese: 準噶爾滅族; pinyin: Zhǔngáěr mièzú) was the mass extermination of the Dzungar people (Oirat Mongols) by the Qing dynasty. The Qianlong Emperor ordered the genocide after the rebellion in 1755 by Dzungar leader Amursana against Qing rule, after the dynasty first conquered the Dzungar Khanate with Amursana's support. The genocide was perpetrated by Manchu and Han generals of the Qing army, supported by Turkic oasis dwellers (now known as Uyghurs) who rebelled against Dzungar rule.
The Dzungar Khanate was a confederation of several Tibetan Buddhist Oirat Mongol tribes that emerged in the early 17th century, and the last great nomadic empire in Asia. Some scholars estimate that about 80% of the Dzungar population, or around 500,000 to 800,000 people, were killed by a combination of warfare and disease during or after the Qing conquest in 1755–1757. After wiping out the native population of Dzungaria, the Qing government then resettled Han, Hui, Uyghur, and Sibe people on state farms in Dzungaria, along with Manchu Bannermen to repopulate the area.