Abū al-Faḍl ‘Abd al-Raḥmān ibn Abī Bakr ibn Muḥammad Jalāl al-Dīn al-Khuḍayrī al-Suyūṭī (; 1445–1505 AD) was an Egyptian religious scholar, juristic expert and teacher, and one of the most prolific Arab writers of the Middle Ages, whose works deal with Islamic theology. In 1486, he was appointed to a chair in the mosque of Baybars in Cairo. He adhered to the Shafi'i Maslak and is one of the latter-day authorities of the Shafi'i School, considered to be one of the Ashabun-Nazzar (Assessors) whose degree of ijtihad is agreed upon. An alternative spelling of his name is Jalaluddin.