Iranian orientalists

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.

Russian orientalist, historian and philologist

American philosopher