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. He later became the chief deputy of his brother Yazid ibn al-Muhallab during the latter's revolt against the Umayyads in Iraq. He became head of the Muhallabid family when Yazid was slain but was pursued and soon after killed by Umayyad forces.