Abu'l-Sāj Dēvdād (in Arabic: أبو الساج ديوداد Abū al-Sāj Dīwdād) (died 879) was a Sogdian prince, who was of the most prominent emirs, commanders and officials of the Abbasid Caliphate.
[2] In 875, Abu'l-Saj was appointed as the governor of Ahvaz by the caliph and was given a task to assignment to suppress the rebellion of 'Ali ibn Muhammad, who had assembled and encouraged a group of Zanji slaves to rebel.
However, when Abu'l-Saj was in Dulab (a village near Ahvaz), news reached to him about the defeat and death of 'Abd al-Rahman, which made him go to 'Askar Mukram instead.
The following year, Abu'l-Saj joined the Saffarid amir Ya'qub bin Layth, who had led his army into Khuzistan during his advance into Iraq against the caliph.
In 879, Ya'qub died after of colic disease, and was succeeded by his younger brother Amr ibn al-Layth, who made peace with the Abbasid Caliphate.