Biligtü Khan or The Emperor Zhaozong of Yuan, born Ayushiridara (?????? ???? ?????????) (temple name: ??, Zhaozong; r.
1370–1378), was a ruler of the Northern Yuan dynasty based in Mongolia.
Ascended to the throne after the death of his father who was the last Yuan emperor, he defeated the invading Ming army in 1372 and recaptured some Chinese borderlands that were previously lost to the newly founded Ming dynasty.