Mar Addai II, Catholicos-Patriarch of the Ancient Church of the East (Syriac: ??? ???), born Shlemun Giwargis, (born in Iraq on 1 August 1946, although some sources cite 1948) is the incumbent Catholicos-Patriarch of the Ancient Church of the East and resides in the Apostolic See of Seleucia-Ctesiphon in Baghdad, Iraq.