List of catholicoi (a title of heads of many Eastern churches - singular catholicos):
List of catholicoi of all Armenians List of Armenian catholicoi of Cilicia List of Armenian Catholic patriarchs of Cilicia List of Chaldean Catholic patriarchs of Baghdad List of patriarchs of the Church of the East List of heads of the Georgian Orthodox Church List of Caucasian Albanian catholicoi
See also Catholicos Catholicos of All Armenians Catholicos of The East and Malankara Metropolitan Catholicos-Patriarch of All Georgia Catholicos of India Lists of patriarchs