Al-Fadl ibn Salih
| Al-Fadl ibn Salih  الفضل بن صالح | |
|---|---|
| Abbasid governor of Syria | |
| In office 766–775 | |
| Monarch | al-Mahdi | 
| Preceded by | Abd al-Wahhab ibn Ibrahim ibn Muhammad al-Abbasi (754–764) | 
| Succeeded by | Harun ibn al-Mahdi | 
| Abbasid governor of al-Jazira | |
| In office 775–780 | |
| Monarch | al-Mahdi | 
| Succeeded by | Abd al-Samad ibn Ali | 
| Abbasid governor of Egypt | |
| In office 785–786 | |
| Monarch | al-Hadi | 
| Preceded by | Assamah ibn Amr | 
| Succeeded by | Ali ibn Sulayman | 
| Personal details | |
| Born | 740 | 
| Died | 789 | 
| Parent | 
 | 
| Relatives | Ibrahim, (brother) Isma'il, (brother) Abd al-Malik (brother) | 
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.