Zhang Guan (張瓘) (died 359) was a general and regent of the Chinese state Former Liang, during the early reign of the young prince Zhang Xuanjing. Zhang Guan was a distant relative of the ruling family of Former Liang. He was serving as the governor of He Province (河州, modern southwestern Gansu and eastern Qinghai) under Zhang Xuanjing's uncle Zhang Zuo, who had seized the throne from Zhang Xuanjing's older brother Zhang Yaoling in 354. Zhang Zuo, whose reign was marked by violence and extravagance, was fearful of Zhang Guan's military power, so he sent his subordinate Suo Fu (索孚) to replace Zhang Guan while ordering Zhang Guan to attack Xiongnu tribes which had rebelled. He then set up an ambush against Zhang Guan, ready to seize him and/or kill him. However, news leaked, and Zhang Guan ex