A rebel leader in northern Shanxi who was suppressed by Duan Yunsheng. After Duan Yunsheng's death, An Youliang appointed Sun Haohan as the Governor of Yanzhou with military command over Yanzhou, Dan, Fu, and Fang. Sun Haohan became the de facto ruler of the four northern provinces, officially breaking away from the court. He later sent eight thousand troops to assist An Youliang in suppressing rebel forces in Hedong due to a personal vendetta against the Duan family.
