The YJ-91 () is an anti-radiation air-to-surface cruise missile produced by the People's Republic of China. It is a derivative of the Zvezda-Strela Kh-31P anti-radiation variant.
In 1994, China purchased the right to manufacture the Kh-31P missile but reportedly modified the seeker for the PLA's needs.
The YJ-91A is the anti-ship variant.