Abu Sa'id Uthman I

Uthman ibn Abd al-Haqq (1196–1240), also called Abu Sa'id Uthman I, was the second ruler of the Marinids. In 1217 he succeeded his father Abd al-Haqq I, who had fallen in battle against the Almohads.

He spent his reign campaigning in the western Maghreb against the Almohad Caliphate. In 1240 he was assassinated by one of his Christian slaves. His brother Muhammad ibn Abd al-Haqq succeeded him.