The Catholic Church in Argentina comprises fourteen ecclesiastical provinces each headed by a Metropolitan archbishop. The provinces are in turn subdivided into 48 dioceses and 14 archdioceses each headed by a bishop or an archbishop.

• Eparchy of San Gregorio de Narek en Buenos Aires
• Melkite Catholic Apostolic Exarchate of Argentina
• Ordinariate for Eastern Catholics in Argentina (other Eastern Catholic rites)

• The seat of the Archdiocese of Bahía Blanca is Catedral Nuestra Señora de la Merced.
• The seat of the Archdiocese of Buenos Aires is Catedral Metropolitana de Buenos Aires.
• The seat of the Archdiocese of Córdoba is Catedral Nuestra Señora de la Asunción.
• The seat of the Archdiocese of Corrientes is Catedral Nuestra Señora del Rosario.
• The seat of the Archdiocese of La Plata is Catedral Nuestra Señora de los Dolores .
• The seat of the Archdiocese of Paraná is Catedral Nuestra Señora del Rosario.
• The seat of the Archdiocese of Resistencia is Catedral San Fernando Rey.
• The seat of the Archdiocese of Rosario is Catedral Basílica de Nuestra Señora del Rosario .
• The seat of the Archdiocese of Salta is Catedral Santuario Nuestro Señor y la Virgen del Milagro.
• The seat of the Archdiocese of San Juan de Cuyo is Catedral San Juan Bautista.
• The seat of the Archdiocese of Santa Fe de la Vera Cruz is Catedral Metropolitana Todos los Santos.
• The seat of the Archdiocese of Tucumán is Catedral Nuestra Señora de la Encarnación.

• Catholicism in Argentina.
• List of Catholic dioceses (structured view)
• List of Catholic dioceses (alphabetical)

• Argentine Episcopal Conference
• Catholic Hierarchy
• Argentine Catholic Informative Agency Dioceses and map.

• GCatholic.org.
• Catholic-Hierarchy^{[self-published source]}