Zhang Xianzhong or Chang Hsien-chung (18 September 1606 – 2 January 1647), nicknamed Yellow Tiger, was a leader of a peasant revolt from Yan'an, Shaanxi Province.
He conquered Sichuan in 1644, and named himself king of the Xi (Da-Xi) dynasty.
His rule in Sichuan was brief and he was killed by the invading Manchu army.
He is commonly associated with the massacres in Sichuan that depopulated the region.