Yesun Temur (Есөнтөмөр; Chinese: 也孙帖木儿) was a Tengric khan (r. 1337–1339)[1] of Chagatai Khanate.
Their father was prince Ebugen who was the son of Duwa, the Chagatai Khan.
Yesun Temur's name literally means "Nine Iron" in the Mongolian language.
In order to take power, Yesun Temur is said to have poisoned (murdered) his brother in 1337.
His guilt caused him to become very stressed, which led to excessive drinking.