Shen Faxing (died AD 620) was an official of the Chinese Sui dynasty who, after Emperor Yang was killed in a coup led by the general Yuwen Huaji in 618, seized the area of present-day Zhejiang and southern Jiangsu and declared himself the King of Liang (梁王). He was defeated by Li Zitong (Emperor of Wu) in 620 and, believing that he was doomed, committed suicide by jumping into a river.