240px|thumbnail|right|Abdullah Ibn Bakhtishu with a student.
Abu Sa'id 'Ubayd Allah ibn Bakhtishu (980–1058), also spelled Bukhtishu, Bukhtyashu, and Bakhtshooa in many texts, was an 11th-century Syriac physician, descendant of Bakhtshooa Gondishapoori. He spoke the Syriac language. He lived in Mayyāfāriqīn.
He was the last representative of the Bukhtyashu family of Church of the East physicians, who emigrated from Jundishapur to Baghdad in 765.