Abdallah ibn Khazim (Arabic: عبدالله بن خازم) (fl.
780–812) was a son of the famed Khurasani Arab general Khazim ibn Khuzayma al-Tamimi and a senior official in the Abbasid Caliphate.
Through Khazim, the family achieved a prominent place among the Khurasaniyya, the Khurasani soldiers who had come west during the Revolution and formed the main power-base of the early Abbasid regime.
[2] Caliph Harun al-Rashid (r. 786–809) appointed him governor of Tabaristan on the Caspian Sea.
As al-Ma'mun's forces laid siege to Baghdad in 812, he and his family abandoned the city and fled to nearby Mada'in.