Diao Wenyuan () is a former international table tennis player and coach from China.
He won a silver medal at the 1973 World Table Tennis Championships in the Swaythling Cup (men's team event) with Li Ching-kuang, Liang Ko-liang, Hsi En-ting and Hsu Shao-Fa for China.
He was the Chinese national singles and doubles champion in 1972.