Diocese of San Isidro Dioecesis Sancti Isidori in Argentina Diócesis de San Isidro
Cathedral of St. Isidor the Worker
Location
Country	Argentina
Ecclesiastical province	Buenos Aires
Metropolitan	Buenos Aires
Statistics
Area	1,379 km2 (532 sq mi)
Population - Total - Catholics	(as of 2010) 1,145,000 1,091,000 (95.3%)
Parishes	66
Information
Denomination	Roman Catholic
Rite	Roman Rite
Established	11 February 1957
Cathedral	Cathedral of St Isidore the Laborer in San Isidoro
Patron saint	St Isidore the Laborer
Current leadership
Pope	Francis
Bishop	Óscar Vicente Ojea
Metropolitan Archbishop	Mario Aurelio Poli
Auxiliary Bishops	Guillermo Eduardo Caride, Raúl Pizarro
Bishops emeritus	Jorge Casaretto
Website
Website of the Diocese

The Diocese of San Isidro is an administrative division of the Roman Catholic Church in Argentina. It was established on 11 February 1957 and covers an area of 1,379 square kilometres (532 sq mi).^[1]

Bishops

Ordinaries

• Antonio María Aguirre (1957–1985)
• Jorge Casaretto (1985–2011)
• Óscar Vicente Ojea (since 2011)

Coadjutor bishop

• Jorge Casaretto (1983–1985)

Auxiliary bishops

• Justo Oscar Laguna (1975–1980), appointed Bishop of Morón
• Martín Fassi (2014–2020), appointed Bishop of San Martín
• Guillermo Eduardo Caride (2018–
• Raúl Pizarro, elect (2020–

Other priests of this diocese who became bishops

• Carlos María Franzini, appointed Bishop of Rafaela in 2000
• Miguel Ángel D’Annibale, appointed Auxiliary Bishop of Río Gallegos in 2011
• Jorge Eduardo Scheinig, appointed Auxiliary Bishop of Mercedes-Luján in 2017
• Marcelo Fabián Mazzitelli, appointed Auxiliary Bishop of Mendoza in 2017
• Jorge Ignacio García Cuerva, appointed Auxiliary Bishop of Lomas de Zamora in 2017