Abū Bishr Mattā b. Yūnus al-Qunnāʾī;
(Arabic: ﺍﺑﻮ ﺑﺸﺮ ﻣﺘﺎ ﺑﻦ ﻳﻮﻧﺲ ﺍﻟﻘﻨﺎﻱء; c. 870-20 June 940) was a Christian philosopher who played an important role in the transmission of the works of Aristotle to the Islamic world. He is famous for founding the Baghdad School of Aristotelian Philosophers.
He was trained at the dayr Qunnā monastery (hence the name “al-Qunnāʾī”), a Nestorian institution not far from Baghdad, which supplied the government of the Abbasid Caliphate with many high-ranking officials. He then taught in Baghdad where the Muslim philosopher Al Farabi and the Syriac Christian philosopher Yahya ibn Adi were among his pupils.