656 – c. 685) was an Arab tribal noble and commander under the Umayyad governor of Syria and later caliph Mu'awiya I. Hatim ibn al-Nu'man was a sharif (tribal noble) of the Bahila, a Qays tribe, in Basra, one of the principal Arab garrison towns of Iraq.
Hatim fought on the side of Mu'awiya, the governor of Syria and Ali's chief opponent, at the Battle of Siffin in 657.
During his reign, in 665 or 666, Hatim was among the commanders dispatched to govern parts of Khurasan, the eastern frontier of the Caliphate, according to the 9th-century history of al-Tabari.
[2] During the Second Muslim Civil War, he defected from the Umayyads, and joined their rivals, the Zubayrids, who held sway over Iraq and much of the Jazira.
[3] His descendants, known as the 'Banu Hatim' after him, served as governors of the Jazira and the affiliated provinces of Armenia and Adharbayjan under the Umayyads and were active participants of the Qaysi faction against the Yaman, their rivals for power and influence in the Caliphate.