Ubaydallah ibn al-Sari | |
|---|---|
| عبيد الله بن السري | |
.jpg) Gold dinar minted in Egypt in 823/4, displaying the names of the caliph al-Ma'mun and Ubaydallah ibn al-Sari | |
| Governor of Egypt | |
| In office 822–826 | |
| Monarch | Al-Ma'mun |
| Preceded by | Abu Nasr ibn al-Sari |
| Succeeded by | Abdallah ibn Tahir al-Khurasani |
| Personal details | |
| Born | unknown |
| Died | April 865 Samarra |
| Parent | Al-Sari ibn al-Hakam Al-Zuti |
Ubaydallah ibn al-Sari (Arabic: عبيد الله بن السري) (died 865) was a governor of Egypt from 822 until 826. A son of al-Sari ibn al-Hakam, he was the third and last member of his family to autonomously rule over parts of Egypt during the troubled period following the great Abbasid civil war, and his surrender to Abdallah ibn Tahir in 826 marked the re-imposition of firm Abbasid control over the province for the first time since the outbreak of the conflict.