Ja'far ibn Sulayman ibn Ali al-Hashimi () was an early Abbasid prince. He served as provisional governor for Abbasid Caliphate.
He was the son of Sulayman ibn Ali. Ja'far was a paternal cousin of the first two Abbasid caliphs al-Saffah (r. 750âÂÂ754) and al-Mansur (r. 754âÂÂ775).
His father, Sulayman died in Basra in October 759 at the age of 59, and was succeeded by several sons, including Muhammad and Ja'far.
His first cousin al-Mansur, appointed him governor of Medina in 763 and he was dismissed in 766/77. He was re-appointed in 780 by al-Mahdi and he was dismissed in 783.