Diocese of Bahía Blanca

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Bahía Blanca is a Latin rite metropolitan archdiocese in southern Buenos Aires province, Argentina, erected as a diocese in 1934 and elevated to an archdiocese in 1957. It is the metropolitan see of the ecclesiastical province covering Patagonia, with its seat at the Cathedral of Our Lady of Mercy.

Archbishop
Most Rev. Carlos Alfonso Azpiroz Costa, O.P.
Latin name
Sinus Albi
Erected
20 April 1934
Cathedral
Cathedral of Our Lady of Mercy
Patron
Our Lady of Mercy
Rank
Metropolitan See
Rite
Latin
Province
Bahía Blanca
Catholics
635,000
Chancery
Arzobispado, Avenida Colón 164, b8000fto Bahía Blanca [Buenos Aires], Argentina
Telephone
Tel. e fax [0291]455.07.07

Contact as printed in the Annuario Pontificio.

Parishes near the see

Sources: official site + Wikipedia · Annuario code 001000790 · ontology v0.3.2 · updated 2026-06-08

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