Li Fengji (Chinese: 李逢吉; 758 – February 27, 835[1][2]), courtesy name Xuzhou (虛舟), formally Duke Cheng of Zheng (鄭成公) or Duke Cheng of Liang (涼成公),[3] was an official of the Chinese Tang dynasty, serving as a chancellor during the reigns of Emperor Xianzong, Emperor Xianzong's son Emperor Muzong, and grandson Emperor Jingzong. He was portrayed by traditional accounts as full of machinations against his political opponents.