Ubayd Allah ibn Abi Bakra

Ubayd Allah ibn Abi Bakra (عبيد الله بن أبي بكرة, died CE) was an Umayyad governor of Sijistan and a military commander.

He was the son of Abu Bakra, a former Abyssinian slave and mawla (client or freedman) who had been a companion of the Islamic prophet Muhammad and converted to Islam in 630. Ubayd Allah's mother was an Arab. He was physically described as having "a dark and swarthy complexion". This corresponded to a resurgence of Islamic expansionism, following the second civil war (683–692). He then retreated, with 5,000 of his men remaining, to the city of Bust.

Around 700, al-Hajjaj appointed an Arab noble from Kufa, Ibn al-Ash'ath, who was tasked by al-Hajjaj with a renewed offensive against the Zunbils. After some initial successes, he reached an agreement with the Zunbils, who agreed to return the hostages captured from Ubayd Allah and resume paying the tribute at the original rate. Afterward, he took his army back to Iraq and led a revolt against al-Hajjaj.