Al-Khwarizmi or Muḥammad ibn Mūsā al-Khwārizmī (c. 780 – c. 850) was a Persian scholar who produced works in mathematics, astronomy, and geography. Al-Khwarizmi may also refer to: People Muhammad ibn Ahmad al-Khwarizmi, 10th-century encyclopedist who wrote Mafātīḥ al-ʿulūm ("Key to the Sciences") Abū Bakr Muḥammad b. al-ʿAbbās al-Khwarizmi, Arabic poet and writer (934-93) Al-Khwarizmi al-Khati, 11th-century alchemist Shuja al-Khwarazmi (d. 861) was the mother of Abbasid caliph Ja'far al-Mutawakkil Places Al-Khwarizmi (crater), a crater on the far-side of the moon named after Muhammad ibn Musa al-Khwarizmi Khwarizmi International Award, a research award for achievements in science and technology research See also Khwarezmian (disambiguation)