Al-Mufaddal ibn al-Muhallab al-Azdi (died 720) was an Umayyad commander and governor of Khurasan in 704/705, during which he conquered Badghis and asserted caliphal control of the rebel-held fortress of Tirmidh.
Al-Mufaddal was a son of al-Muhallab ibn Abi Sufra of the Azd tribe, who was the leading general in the Iraqi wars against the Azariqa Kharijites in 683–698 and governor of Khurasan in 698–704.
Al-Mufaddal was Yazid's field commander when they engaged and defeated the rebels of Ibn al-Ash'ath's abortive revolt against the Umayyads in Iraq when they fled and set up base in Khurasan.
[3] Yazid was made governor of Iraq and Khurasan by Sulayman in 715, but was dismissed and imprisoned again by his successor, Caliph Umar II, in 717.
The Umayyad army of Maslama ibn Abd al-Malik defeated and killed Yazid, causing al-Mufaddal to retreat to Basra where he was chosen as the Muhallabid family's new head.