ʿAbd al-ʿAzīz ibn Marwān (Arabic: عبد العزيز بن مروان; died 705) was the Umayyad governor and de facto viceroy of Egypt between 685 and his death. He was appointed by his father, Caliph Marwan I (r. 684–685). Abd al-Aziz's reign was marked by stability and prosperity, partly due to his close relations and reliance on the Arab military settlers of Fustat. Under his direction and supervision, an army led by Musa ibn Nusayr completed the Muslim conquest of North Africa. He was removed from the line of succession to the caliphal throne and, in any case, died before his brother, Caliph Abd al-Malik. However, one of Abd al-Aziz's sons, Umar II, would become caliph in 717–720.
Abd al-Aziz's wife Umm Asim Layla bint Asim was the granddaughter of the second Caliph Umar ibn al-Khattab.
Abd al-Aziz is most notable for his twenty-year-long tenure as governor (wali) of Egypt, from AH 65 (685 CE) to his death in AH 86 (705 CE). He was placed in the post by Marwan I immediately after the Umayyads regained control of the province during the civil war against Ibn al-Zubayr, and held it until his death. He enjoyed wide autonomy in the governance of Egypt, and functioned as a de facto viceroy of the country.
He proved himself a capable governor, and his rule was a period of peace and prosperity, marked by his conciliatory and co-operative attitude towards the leaders of the local Arab settlers (the jund): throughout his tenure, Abd al-Aziz relied on them rather than the Syrians, who elsewhere were the main pillar of the Umayyad regime. He resided chiefly at Fustat, leaving it only for two visits to the caliphal court at Damascus and four more to Alexandria, although when the plague struck Fustat in 690, he moved the seat of his government to the nearby town of Hulwan. Abd al-Aziz also supervised the completion of the Muslim conquest of North Africa; it was he who appointed Musa ibn Nusayr in his post as governor of Ifriqiya.