Al-Muzaffar Taqi al-Din Umar (Arabic: المظفر تقي الدين عمر‎‎) (died 1191) was the Ayyubid prince of Hama from 1179 to 1191 and a general of Saladin. He was the son of Saladin's brother Nur al-Din Shahanshah and brother of Farrukh Shah of Baalbek.

After the conquest of Syria and northern Iraq, Saladin named al-Muzaffar Umar the sovereign of Ayyubid-ruled Mesopotamia. In the city of Edessa located in the Mesopotamian territory, al-Muzaffar Umar also built a madrasa. He particularly showed favor for those who worked in religious law and the Sufis. He was handed the principality of Hama four years after helping Saladin conquer it in 1175. His ascendancy ushered in an era of prosperity for Hama that lasted until the end of Ayyubid rule in 1341. During al-Muzaffar Umar's reign, the city was walled, and palaces, markets, madrasas, and mosques were built.

In 1181, while in Manbij, he attempted to block the Zengid forces of Izz ad-Din Mas'ud from reaching Aleppo, but failed and was forced to retreat to Hama. Two years later, Saladin's brother and his deputy ruler in Egypt, al-Adil, was sent to besiege Kerak in southern Transjordan which was in Crusader hands. Saladin therefore sent al-Muzaffar Umar as al-Adil's replacement.

While in Egypt, he was granted the province of Fayyum as a fief. He founded two Sunni Muslim madrasas (Islamic education institutions) in the province, one for the Shafi'i denomination and the other for the Maliki denomination. In Cairo, he erected a madrasa bearing the name Manazil al-Izz which was a former residence of his—originally taken from the Fatimids. All of his Egyptian properties were made a part of his waqf ("religious endowment"). However, in 1185, Saladin appointed his son, al-Aziz Uthman, to rule Egypt on his behalf.

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