Hasan ibn an-Nu`uman al-Ghasani (Arabic: حسان بن النعمان الغساني Hasān ibn an-Nu‘umān al-Ghasānī) (d. c. 700), amir (general) of the Umayyad army in North Africa. The nisba indicates he either came from Ghassān in Yemen or was part of an Arab tribe originally from that area.
Dates in this section are according to Ibn Abd al-Hakam (work cited below), other medieval sources give a range of 4 years before and after.
He was appointed governor of the Maghreb about the year 692. At this time, the Arab forces had still not managed to entirely defeat the Byzantine Greeks in North Africa. He captured the Byzantine city of Carthage after defeating Ioannes the Patrician and Tiberios III at the Battle of Carthage in 698. After a defeat by the Berber warrior queen al-Kahina, he retired to Libya for several years, then returned to Ifriqiya and killed al-Kahina in battle. This effectively brought Ifriqiya (modern Tunisia and eastern Algeria) under Arab control.
He appointed Abu Salih as emir over Ifriqiya while keeping the emirates of Cyrenaica and other parts of Libya for himself. He returned to Kairouan and re-established it as the capital of Ifriqiya, building (or re-building) the mosque, establishing official registers and levying land taxes (against Muslims) and poll taxes (against Christians).