Sun Dafa (; born November 1945) is a general of the People's Liberation Army (PLA) of the People's Republic of China and the current political commissar of the PLA General Logistics Department. Born in Jinzhai, Anhui Province, Sun joined the army in 1964 and the Communist Party of China in 1968. After 1977, he served as the secretary of Li Desheng, then the commander of the Shenyang Military Region. In May 1984, he became the political commissar of the 115th division of the PLA 39th army. In June 1990, he was elevated to the position of director of the political department of the PLA 16th army group, and achieved the rank of major general. He was later promoted to political commissar of the army group.