Mar Ukba ben Judah, also known as Mar Ukban IV (Hebrew: מר עוקבא בן יהודה; early tenth century) was the Babylonian Exilarch from 890 until his banishment in 917 AD.
Mar Ukba ben Judah, also known as Mar Ukban IV, served as the Babylonian Exilarch from 890 to 917 AD.