12th-century Iranian mathematicians

Persian mathematician and poet (1048–1131)

Abū al-Fath Abd al-Rahman Mansūr al-Khāzini or simply al-Khāzini (; flourished 1115–1130) was an Iranian astronomer, mechanician and physicist of Byzantine Greek origin who lived during the Seljuk Empire. His astronomical tables, written under the patronage of Sultan Sanjar ('''', 1115), are considered to be one of the major works in mathematical astronomy of the medieval period. He is considered to have been one of the greatest scientists of his era, among the greatest makers of scientific instruments of any time, and as "the physicist of all physicists".

Persian mathematician and astronomer

Iranian writer and academic

Khorasani writer and Islamic jurist

Abū Ḥātim al-Muẓaffar al-Isfazārī (; fl. late 11th or early 12th century) was an Islamic mathematician, astronomer and engineer from Khurasan. According to the historian and geographer Ibn al-Athir and the polymath Qutb al-Din al-Shirazi, he worked in the Seljuq observatory of Isfahan. The Persian writer Nezami Aruzi met him in Balkh in (in present-day Afghanistan) in 1112 or 1113.

thumb|Note of Guillaume Postel on the Arabic astronomical manuscript of al-Kharaqī, Muntahā al-idrāk fī taqāsīm al-aflāk ("The Ultimate Grasp of the Divisions of Spheres"). '''Abū Muḥammad 'Abd al-Jabbār al-Kharaqī, also Al-Kharaqī' (1084-1158) was a Persian astronomer and mathematician of the 12th century, born in Kharaq near Merv. He was in the service of Sultan Sanjar at the Persian Court. Al-Kharaqī challenged the astronomical theory of Ptolemy in the Almagest, and established an alternative theory of the spheres, imagining huge material spheres in which the planets moved inside tubes. He

Iranian linguist