Ordinaries Prelates of the Roman Catholic Territorial Prelature of El Oro • Bishop
Silvio Luis Haro Alvear (1954 – 23 Mar 1955);
Apostolic Administrator; previously,
Auxiliary Bishop of the
Roman Catholic Archdiocese of Guayaquil and
Titular Bishop of
Antaeopolis; subsequently, Bishop of the
Roman Catholic Diocese of Ibarra • Father
Vicente Felicísimo Maya Guzmán (1956 – 29 Nov 1963); Apostolic Administrator; subsequently Bishop-Prelate of El Oro, and then first Bishop of Machala • Bishop-Prelate
Vicente Felicísimo Maya Guzmán (29 Nov 1963 – 31 Jan 1969); Titular Bishop of
Comana pontica; previously, Apostolic Administrator of El Oro; subsequently, first Bishop of Machala
Bishops of the Roman Catholic Diocese of Machala • Bishop
Vicente Felicísimo Maya Guzmán (31 Jan 1969 – 30 Jan 1978); previously, Apostolic Administrator and then Bishop-Prelate of El Oro • Bishop
Antonio José González Zumárraga (30 Jan 1978 – 28 Jun 1980); previously, Auxiliary Bishop of the
Roman Catholic Archdiocese of Quito and Titular Bishop of
Tagarata; subsequently, Coadjutor Archbishop and then
Metropolitan Archbishop of Quito, then Cardinal-Priest of
Chiesa di Santa Maria in Via,
Rome, Italy, and President of the
Episcopal Conference of Ecuador • Father
Jesús Ramón Martínez de Ezquerecocha Suso (1980 – 14 Jan 1982); Apostolic Administrator; subsequently, Bishop-Prelate of the
Roman Catholic Territorial Prelature of Los Ríos and then Bishop there (
Roman Catholic Diocese of Babahoyo) • Bishop
Néstor Rafael Herrera Heredia (14 Jan 1982 – 22 Feb 2010); served as President of the Episcopal Conference of Ecuador • Bishop
Luis Antonio Sánchez Armijos, S.D.B. (22 Feb 2010 – 22 Oct 2012); previously, Bishop of the
Roman Catholic Diocese of Tulcán • Bishop
Ángel Polivio Sánchez Loaiza (20 Jul 2013 – 27 Sep 2022); previously, Bishop of the
Roman Catholic Diocese of Guaranda • Bishop
Vicente Horacio Saeteros Sierra (27 Sep 2022 – ...)
Auxiliary bishop •
Hermenegildo José Torres Asanza (2007-2018), appointed Bishop of Guaranda ==Special churches==