Naṣr ibn Sayyār al-Laythi al-Kinani () (663–748) was an Arab general and the last Umayyad governor of Khurasan in 738–748. Nasr played a distinguished role in the wars against the Turgesh, although he failed to decisively confront the rebellion of al-Harith ibn Surayj in its early stages. Although respected as a soldier and a statesman, he owed his appointment as governor more to his obscure tribal background, which rendered him dependent on the Caliph. His tenure was nevertheless successful, as Nasr introduced long-overdue tax reforms that alleviated social tension and largely restored stabilized Umayyad control in Transoxiana, which had been greatly reduced under the Turgesh onslaught. His last years were occupied by inter-tribal rivalries and uprisings, however, as the Caliphate itself