Yao Xing (366–416), courtesy name Zilue, formally Emperor Wenhuan of (Later) Qin, is an emperor of the Chinese/Qiang state Later Qin.

He is the son of the founding emperor Yao Chang (Emperor Wucheng).

For most of his reign, he does not use the title of emperor, but uses the title Heavenly Prince (Tian Wang).

During his reign, he destroys the rival Former Qin state and proceeds to expand his hegemony over nearly all of western China, as he temporarily seizes all of Western Qin's territory and forces Southern Liang, Northern Liang, Western Liáng, and Qiao Zong's Western Shu all to at least nominally submit to him, but late in his reign, defeats on the battlefield, particularly at the hands of the rebel general Helian Bobo (who founds Xia), and internecine struggles between his sons and nephews greatly damage the Later Qin state, which is destroyed soon after his death.

Yao Xing is an avid Buddhist, and it is during his reign that Buddhism first receives official state support in China.

The monk Kumarajiva also visits Chang'an at Yao Xing's request in 401.