Ordained
Bishop | Years | Name | Current Title |
|---|
| Most Senior |
| 9 Jun 1957 |
| Archbishop Jorge Mayer | Archbishop Emeritus of Bahía Blanca |
| 21 Jul 1957 |
| Bishop Raúl Marcelo Pacífico Scozzina, O.F.M. | Bishop Emeritus of Formosa |
| 7 Sep 1958 |
| Bishop Pedro Reginaldo Lira | Bishop Emeritus of San Francisco |
| 24 Apr 1960 |
| Archbishop Moisés Julio Blanchoud | Archbishop Emeritus of Salta |
| 15 Oct 1961 |
| Bishop Andrés Sapelak, S.D.B. | Bishop Emeritus of Santa María del Patrocinio en Buenos Aires (Ukrainian) |
| 22 Jun 1969 |
| Pio Cardinal Laghi | Prefect Emeritus of the Congregation for Catholic Education (for Seminaries and Institutes of Study), Roman Curia |
| 29 May 1971 |
| Bishop Juan Rodolfo Laise, O.F.M. Cap. | Bishop Emeritus of San Luis |
| 8 Mar 1975 |
| Bishop Justo Oscar Laguna | Bishop Emeritus of Morón |
| 4 Jun 1975 |
| Bishop Miguel Esteban Hesayne | Bishop Emeritus of Viedma |
| 8 Aug 1975 |
| Bishop Guillermo Leaden, S.D.B. | Auxiliary Bishop Emeritus of Buenos Aires |
| 16 Aug 1975 |
| Archbishop Raúl Arsenio Casado | Archbishop Emeritus of Tucumán |
| 25 Mar 1976 |
| Bishop Emilio Bianchi di Cárcano | Bishop Emeritus of Azul |
| Most Junior |
| 9 Mar 2008 |
| Bishop Mariano Moreno García, O.S.A. | Prelate of Cafayate |
| 2 Mar 2008 |
| Bishop Jesús Tirso Blanco, S.D.B. | Bishop of Lwena, Angola |
| 30 Nov 2007 |
| Bishop César Daniel Fernández | Auxiliary Bishop of Paraná |
| 19 Mar 2007 |
| Bishop Hugo Norberto Santiago | Bishop of Santo Tomé |
| 10 Mar 2007 |
| Bishop Luis Urbanc | Bishop of Catamarca |
| 3 Feb 2007 |
| Bishop Abdo Arbach, B.C. | Exarch of Argentina, Faithful of the Oriental Rite (Melkite) |
| 21 Dec 2006 |
| Bishop Pedro María Laxague | Auxiliary Bishop of Bahía Blanca |
| 8 Dec 2006 |
| Bishop Marcelo Raúl Martorell | Bishop of Puerto Iguazú |
| 2 Sep 2006 |
| Bishop Óscar Vicente Ojea Quintana | Auxiliary Bishop of Buenos Aires |
| 21 Aug 2006 |
| Bishop Hugo Manuel Salaberry Goyeneche, S.J. | Bishop of Azul |
| 20 May 2006 |
| Bishop Raúl Martín | Auxiliary Bishop of Buenos Aires |
| 19 May 2006 |
| Bishop Eduardo Eliseo Martín | Bishop of Villa de la Concepción del Río Cuarto |
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