Sibt al-Maridini, full name Muḥammad ibn Muḥammad ibn Aḥmad Abū ʿAbd Allāh Badr [Shams] al‐Dīnal‐Miṣrī al‐Dimashqī (1423 – 1506 AD), was an Egyptian-born astronomer and mathematician. His father came from Damascus. The word "Sibt al-Maridini" means "the son of 's daughter". His maternal grandfather, , was a reputed astronomer of the eighth century AH. He was a disciple of the astronomer Ibn al-Majdi (d. 850/1506), according to tradition.