Su Dingfang (traditional Chinese: 蘇定方; simplified Chinese: 苏定方; pinyin: Sū Dìngfāng; Wade–Giles: Su Tingfang) (591–667), formal name Su Lie (蘇烈) but went by the courtesy name of Dingfang, formally Duke Zhuang of Xing (邢莊公), was a Chinese military general of the Tang Dynasty who succeeded in destroying the Western Turkic Khaganate in 657. He was born in Wuyi (武邑, in modern Hengshui, Hebei). Su Dingfang's victory over Western Turks expanded the western borders of the Tang Empire to their farthest extent. He was also instrumental in conquering Baekje in 660.