Ignatius Zakka I Iwas (Arabic: زكا عيواص‎, Zakkà ‘Īwāṣ, born Sanharib Iwas on 21 April 1933) is the 122th reigning Patriarch of Antioch and All the East, and as such, Supreme Head of the Universal Syriac Orthodox Church. Also known by his traditional episcopal name, Severios, he was enthroned as patriarch on 14 September 1980 in St. George's Patriarchal Cathedral in Damascus. He succeeded Ignatius Ya`qub III. As is traditional for the head of the church, Severios has adopted the name Ignatius.