Wang Xiaojie (王孝傑) (died February 8, 697[1]), formally the Duke of Geng (耿國公), was a Chinese military general and politician of the Chinese Tang dynasty and Wu Zetian's Zhou dynasty, serving in campaigns against Tibet, Eastern Turks, and Khitan and briefly serving as chancellor during Wu Zetian's reign.
In 678, he served under the general Liu Shenli (劉審禮), the assistant to the chancellor Li Jingxuan in a campaign against Tibet.
In 694, Wang again achieved victories near Qinghai Lake against Tibetan general Gar Tsenyen Gungton ("Bolun Zanren" (勃論贊刃) in Chinese) and Western Turks' Shixing Khan Ashina Tuizi (阿史那俀子).
He was soon made the minister of defense (夏官尚書, Xiaguan Shangshu) and given the designation Tong Fengge Luantai Sanpin (同鳳閣鸞臺三品).
In spring 697, Wang engaged Sun at Dongxia Rocky Valley (東硤石谷, near modern Tangshan, Hebei).
Wang himself commanded the forward troops and had initial successes, but as he fought near a cliff, Khitan forces counterattacked, and Su Honghui fled.