Rabban Hormizd Monastery is an important monastery of the Chaldean Catholic Church, founded about 640 AD, carved out in the mountains about 2 miles from Alqosh, Iraq, 28 miles north of Mosul. It has been the official residence of the patriarchs of the Eliya line of the Church of the East from 1551 to the 18th century, and after the union with Rome in the early 19th century, it became a prominent monastery of the Chaldean Catholic Church.