Diocese or Archdiocese of Santiago may refer to the following (former and/or present) ecclesiastical jurisdictions — bishoprics or archbishoprics — with see in a city called Santiago (after Saint James, in Spanish):
Africa Roman Catholic Diocese of Santiago de Cabo Verde on Cape Verde
America Anglican Diocese of Santiago in Chile Roman Catholic Archdiocese of Santiago de Chile in Chile Roman Catholic Archdiocese of Santiago de Cuba on Cuba Roman Catholic Archdiocese of Santiago de los Caballeros on Hispaniola, in the Dominican Republic Roman Catholic Diocese of Santiago del Estero in Argentina Roman Catholic Diocese of Santiago de María in El Salvador Roman Catholic Diocese of Santiago de Veraguas in Panama
Asia Diocese of Santiago; see Episcopal Church in the Philippines#Dioceses Diocese of Santiago (Philippine Independent Church); see List of dioceses of the Philippine Independent Church
Europe Roman Catholic Archdiocese of Santiago de Compostela in Galicia, Spain