Ismaʿīl ibn ʿĪsā ibn Mūsā al-Hāshimī () was an Abbasid personage and governor of Egypt.

The son of Isa ibn Musa, gives his full name as "Isma'il ibn Isa ibn Musa ibn Muhammad ibn Ali ibn Abdallah ibn Ali(?) ibn al-Abbas al-Abbasi al-Hashimi." See also . he was appointed to Egypt by his second cousin Harun al-Rashid () in 798. After an administration lasting for a few months, he was dismissed and replaced with al-Layth ibn al-Fadl.; . does not mention him as a governor. See also . The genealogy of the Abbasids including their rival Zaydi imams Caliphs of the Abbasid Caliphate Caliphs of Cairo Zaydi imams

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