| Abd al-Samad ibn Ali عبد الصمد بن علي | |||||
| Term Start: | 780 | ||||
| Term End: | 780s | ||||
| Term Start1: | 772 | ||||
| Term End1: | 776 | ||||
| Successor1: | Muhammad ibn Abdallah al-Kathiri | ||||
| Death Date: | c. 780s | ||||
| Death Place: | Abbasid Caliphate | ||||
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Abd al-Samad ibn Ali al-Hashimi (Arabic: عبد الصمد بن علي الهاشمي) was an eighth century Abbasid personage. He served as the governor of al-Jazira for the Abbasid Caliphate.
Abd al-Samad was the son of Ali ibn Abd Allah ibn al-Abbas. He was a paternal uncle of the first two Abbasid caliphs al-Saffah (r. 750–754) and al-Mansur (r. 754–775), making him one of the "uncles" ('umumah) that held a high degree of influence during the early years following the Abbasid Revolution.
His nephew, al-Mansur appointed him[1] governor of Medina and Mecca in 772. He was dismissed from the office in 776.
In 775, Al-Fadl ibn Salih was appointed governor of the region of al-Jazira north of Damascus by the Abbasid caliph al-Mahdi. He moved to al-Jazira the same year. Al-Fadl returned to Damascus following his trip to Jerusalem in 780 where he accompanied al-Mahdi as part of his entourage.[2] It was around this time when he was deposed as governor of al-Jazira and replaced by Abd al-Samad ibn Ali.[3]