Umar ibn Ubayd Allah ibn Ma'mar

Umar ibn Ubayd Allah ibn Ma'mar al-Taymi
Died702 or 703
OccupationsMilitary commander, governor
Years activeLate 7th century
Known forCommand against the Kharijites; role in the Second Muslim Civil War
OfficeGovernor of Fars; Acting governor of Basra; Governor of Bahrayn

Umar ibn Ubayd Allah ibn Ma'mar al-Taymi (died 702 or 703) was a commander of the Zubayrid and Umayyad caliphates in their wars with the Kharijites and the chief of the Banu Taym clan of the Quraysh in the late 7th century.