Tahir ibn Husayn

Tahir ibn Husayn
Dirham under Tahir ibn Husayn governorship
Governor of Khurasan
In office 821–822
Monarch	Al-Ma'mun
Succeeded by	Talha ibn Tahir
Governor of Mosul
In office 813–814
Monarch	Al-Ma'mun
Preceded by	al-Hasan ibn Umar (812)
Succeeded by	Ali ibn al-Hasan ibn Sailh (814–817)
Personal details
Born	Pushang, Abbasid Empire now Afghanistan
Died	822 Merv, Abbasid Empire now Turkmenistan
Relations	Ruzaiq (great-grandfather) Mus'ab ibn Ruzaiq (grandfather)
Children	Talha ibn Tahir Abdallah ibn Tahir
Parent	Husayn ibn Mus'ab

Ṭāhir ibn Ḥusayn, (Arabic: طاهر بن الحسين, Tahir bin al-Husayn), also known as Dhul-Yamīnayn (Arabic: ذو اليمينين, "the ambidextrous"), and al-Aʿwar (Arabic: الأعور, "the one-eyed"), was a general and governor during the Abbasid Caliphate. Specifically, he served under al-Ma'mun during the Fourth Fitna and led the armies that would defeat al-Amin, making al-Ma'mun the caliph.

Tahir bin al-Husayn was then appointed governor of Khorasan as a reward, which marked the beginning of the Tahirids.