Roman Catholic Diocese of Lomas de Zamora

The Roman Catholic Diocese of Lomas de Zamora (erected 11 February 1957) is in Argentina and is a suffragan of the Archdiocese of Buenos Aires.

Ordinaries

 * Filemón Castellano (1957–1963)
 * Alejandro Schell (1963–1972)
 * Desiderio Elso Collino (1972–2001)
 * Agustín Roberto Radrizzani, S.D.B. (2001–2007 ), appointed Archbishop of Mercedes-Luján
 * Jorge Ruben Lugones, S.J. (2008– )

Coadjutor bishop

 * Alejandro Schell (1958–1963)

Auxiliary bishops

 * Héctor Gabino Romero (1978–1984), appointed Bishop of Rafaela
 * José María Arancedo (1988–1991), appointed Bishop of Mar del Plata
 * Juan Carlos Maccarone (1993–1996), appointed Bishop of Chascomús
 * Jorge Vázquez (2013–2017), appointed Coadjutor Bishop of Morón
 * Carlos Alberto Novoa de Agustini, O.F.M. Cap. (2013); did not take effect
 * Jorge Martín Torres Carbonell (2014–2020), appointed Bishop of Gregorio de Laferrere
 * Jorge Ignacio García Cuerva (2017–2019), appointed Bishop of Río Gallegos
 * Ignacio Damián Medina (2019-)

Other priests of this diocese who became bishops

 * Gustavo Arturo Help, appointed Bishop of Venado Tuerto in 2000
 * Luis Alberto Fernández Alara, appointed Auxiliary Bishop of Buenos Aires in 2009