Al-Faḍl ibn Ṣāliḥ ibn ʿAlī ibn ʿAbd Allāh ibn al-ʿAbbās (Arabic: الفضل بن صالح بن علي بن عبد الله العباسي) (740–789) was the Abbasid governor of a number of different provinces in Syria during the late 8th-century CE. He was also governor of Egypt for a brief period of time. He was related to the Abbasid caliphs and was part of the Banu Salih branch of the Abbasid dynasty.