ʿAbd Allāh ibn ʿUmar ibn ʿAbd al-ʿAzīz (Arabic:عبد الله بن عمر بن عبد العزيز; died 750) was anUmayyad prince, the son of caliphUmar II (r. 717–720), and brieflygovernor of Iraq underYazid III in 744–745. In this capacity he quelled the pro-Alid rebellion ofAbd Allah ibn Mu'awiya atKufa, although Ibn Mu'awiya managed to flee toIstakhr inPersia.^[1]

Following the death of Yazid III,Marwan II (r. 744–750), who seized the throne, appointed a supporter of his own, theQaysial-Nadr ibn Sa'id al-Harashi, as governor of Iraq, but Abd Allah ibn Umar retained the loyalty of theKalbi majority of the Syrian garrison of Iraq. Ibn Umar remained atal-Hira, while Nadr and his followers installed themselves at the suburb of Dayr Hind, and for several months the two rival governors and their troops confronted and skirmished at each other around al-Hira.^[2]

The conflict between Ibn Umar and al-Nadr was abruptly ended by theKharijite revolt which had begun among theBanu Rabi'ah tribes inUpper Mesopotamia. Opposed to Marwan II's takeover and the tribes ofMudar and Qays who supported him, the Kharijites electedal-Dahhak ibn Qays al-Shaybani as their caliph, and in early 745 they invaded Iraq and defeated both rival Umayyad governors.^[3] Nadr fled back to Syria to join Marwan, but Ibn Umar and his followers withdrew toWasit. By the summer of 745 however Ibn Umar and his supporters surrendered and even embraced Kharijism and Dahhak—who was not even of theQuraysh tribe ofMuhammad—as their caliph. Ibn Umar was appointed as Dahhak's governor for Wasit, eastern Iraq, and western Persia, while Dahhak governed western Iraq from Kufa.^[3] After Dahhak was killed by Marwan's army at Kafartuta,Yazid ibn Hubayra was sent to establish Umayyad control over Iraq. Ibn Hubayra defeated the Kharijites at Kufa and then marched on Wasit, where he took Ibn Umar prisoner.^[4] He later died in Marwan's prison inHarran alongside his kinsmanal-Abbas ibn al-Walid and the Abbasid Ibrahim ibn Muhammad from a plague in the city.^[5]

• Hawting, Gerald R. (2000).The First Dynasty of Islam: The Umayyad Caliphate AD 661–750 (Second ed.). London and New York: Routledge.ISBN 0-415-24072-7.
• Williams, John Alden, ed. (1985).The History of al-Ṭabarī, Volume XXVII: The ʿAbbāsid Revolution, A.D. 743–750/A.H. 126–132. SUNY Series in Near Eastern Studies. Albany, New York: State University of New York Press.ISBN 978-0-87395-884-4.

• 750 deaths
• 8th-century Arab people
• 8th-century people from the Umayyad Caliphate
• People of the Third Fitna
• Sons of Umayyad caliphs
• Umayyad governors of Iraq

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• Articles containing Arabic-language text