Duan Xiushi (段秀實) (719 – November 6, 783[1]), courtesy name Chenggong (成公), formally Prince Zhonglie of Zhangye (張掖忠烈王), was a general of the Chinese Tang dynasty. He was known for his strict military discipline. In 783, after Emperor Dezong fled the capital Chang'an in the midst of a revolt at Chang'an led by the general Zhu Ci, Duan made a desperate attempt to assassinate Zhu and was killed in the attempt.