Muhammad ibn Tahir

Abu 'Abdallah Muhammad ibn Tahir ibn 'Abdallah (Arabic: أبو عبد الله محمد بن طاهر بن عبد الله‎‎, died c. 910) was the last Tahirid governor of Khurasan, from 862 until 873.

When Muhammad's father Tahir ibn Abdallah died in 862, the caliph wanted to replace him with Tahir's brother Muhammad ibn Abdallah ibn Tahir, but after the latter refused he appointed Muhammad as governor. The caliph however did not grant Muhammad other titles usually reserved for the Tahirid governor of Khurasan, such as the military governorship of Iraq and Baghdad (sahib al-shurta), but instead gave them to Muhammad ibn Abdallah.

When he became governor, Muhammad was still young and rather inexperienced. Only two years after he succeeded his father, Tabaristan was lost to a Zaydi revolt under Hasan ibn Zayd ibn Muhammad, and the Tahirids were unable to recover the province. In 867 the Saffarid amir of Sistan, Ya'qub al-Saffar, took Herat and imprisoned its Tahirid governor. An army was dispatched under the Samanid Ibrahim ibn Ilyas to stop Ya'qub, but was defeated, after which Muhammad was forced to come to terms. During this time Muhammad also tried to gain the offices in the West that had been given to his uncle Muhammad. After the latter died in 867 his brother 'Ubaydallah had taken over the offices. In opposition to Ubaydallah, Muhammad sent another uncle, Sulayman ibn 'Abdallah, as his representative in Iraq, and Sulayman was able to gain the posts at the expense of Ubaydallah, although the latter would eventually recover them.

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