Musa ibn Abi al-Abbas (Arabic: موسى بن أبى العباس‎) was a governor of Egypt for the Abbasid Caliphate, from 834 until 839. He received his appointment from the Turkish general Ashinas, who additionally granted him oversight over the provincial taxes on an intermittent basis. During his tenure in office Egypt was in a relatively quiet state, but at the same time the Inquisition officially remained in place. In his last years he was also forced to deal with a dispute with some of the residents of the district, which he at length settled.