Dawachi (Chinese: 達瓦齊; pinyin: Dáwǎqí; Mongolian: Даваач; died 1759) was the last khan of the Dzungar Khanate from 1753 until his defeat at the hands of Qing and Mongol forces at Ili in 1755.

Dawachi refused and instead attacked Amursana in 1754, forcing him to flee east to Khovd where he swore allegiance to the Qianlong Emperor of the Qing Empire.

The Qianlong Emperor agreed to support Amursana's plans to defeat Dawachi, which included the retaking of Ili and neighboring Kashgar.

Late 1754 and early 1755, in an attempt to definitively settle the 60-year-old Dzungaria problem, the Qianlong Emperor gave orders for a final advance on Ili.

In desperation, Dawachi sent a delegation to Beijing led by his son, who expressed his father's desire to become a vassal of the Qing Empire.

[2] There, the Qianlong Emperor showed leniency, granting Dawachi a princely title and permitting him to marry a princess from the Qing imperial family.