Nazif ibn Yumn al-qass al-Rūmī al-Baghdādī (died 990) was a Melkite Christian[1] priest, philosopher and physician.
He flourished under the Buyid emir Adud al-Dawla.
He was also a translator of Greek into Arabic, translating the Tenth book of Euclid.
(H. Suter: Mathematiker, 68, 1900).