8th-century philologists

Sibawayh ( (also pronounced in many modern dialects) ; ' ; ), whose full name is Abu Bishr Amr ibn Uthman ibn Qanbar al-Basri (, '), was a Persian leading grammarian of Basra and author of the Third book on Arabic grammar. His famous unnamed work, referred to as Al-Kitāb, or "The Book", is a five-volume seminal discussion of the Arabic language.

Al-Asmaʿi (, ʿAbd al-Malik ibn Qurayb al-Aṣmaʿī ; –828/833), or Asmai was an Arab philologist and one of three leading Arabic grammarians of the Basra school. At the court of the Abbasid caliph, Hārūn al-Rashīd, as polymath and prolific author on philology, poetry, genealogy, and natural science, he pioneered zoology studies in animal-human anatomical science. He compiled an important poetry anthology, the ''Asma'iyyat'', and was credited with composing an epic on the life of Antarah ibn Shaddad. A protégé of Al-Khalil ibn Ahmad al-Farahidi and Abu 'Amr ibn al-'Ala', he was a contemporary and

Persian Arab grammarian and linguist (728–825)

Al-Kisā’ī (d. ca. 804 or 812) was a Persian polymath and founder of the Kufan School of Arabic grammar. He directly served caliph Harun al Rashid as the Abbasid court tutor for two future caliphs. He is also called one of the ‘Seven Readers’ of the seven canonical Qira'at.

8th c. Iraqi philologist and poet