| Bishop (2020.12.05 – ...): |  Bishop Martín Fassi (65) |
Cities (Buenos Aires)  | Churches (40) |
| Billinghurst |  La Sagrada Familia (Parish)  Church of the Holy Family |
| Caseros | Monte Calvario–Santa Teresita (Parish) Church of Mount Calvary and St. Therese |
| Caseros | Nuestra Señora de la Medalla Milagrosa (Parish) Church of Our Lady of the Miraculous Medal |
| Caseros | Nuestra Señora de la Merced (Parish) Church of Our Lady of Mercy |
| Caseros | Sagrado Corazón de Jesús (Parish) Church of the Sacred Heart of Jesus |
| Caseros | San José Obrero (Parish) Church of St. Joseph the Worker |
| Chilavert de Villa Ballester | María Madre de la Iglesia (Parish) Church of Mary Mother of God |
| Chilavert de Villa Ballester | Nuestra Señora de Luján (Parish) Church of Our Lady of Lujan |
| Ciudad Jardín Lomas del Palomar | La Sagrada Familia (Parish) Church of the Holy Family |
| Ciudadela | Nuestra Señora de Fátima (Parish) Church of Our Lady of Fatima |
| Ciudadela | Nuestra Señora de Lourdes (Parish) Church of Our Lady of Lourdes |
| Ciudadela | San Antonio de Padua (Parish) Church of St. Anthony of Padua |
| Ciudadela | Santa Juana de Arco (Parish) Church of St. Joan of Arc |
| Ciudadela | Santa Sinforosa (Parish) Church of St. Symphorosa |
| El Libertador | Inmaculado Corazón de María (Parish) Church of the Immaculate Heart of Mary |
| José Ingenieros | San Cristo (Parish) Church of the Holy Christ |
| José León Suarez | Inmaculada Concepción (Parish) Church of the Immaculate Conception |
| José León Suárez | San Cayetano (Parish) Church of St. Cajetan |
| José León Suárez | San Juan Bosco (Parish) Church of St. John Bosco |
| Loma Hermosa | Nuestra Señora de Luján del Buen Viaje (Parish) Church of Our Lady of Lujan of Good Voyage |
| Loma Hermosa | San José (Parish) Church of St. Joseph |
| Malaver de Villa Ballester | María Auxiliadora (Parish) Church of Mary Help of Christians |
| Martín Coronado | Nuestra Señora de Betharram y San José (Parish) Church of Our Lady of Betharram and St. Joseph |
| Pablo Podestá | Nuestra Señora de Castelmonte (Parish) Church of Our Lady |
| Sáenz Peña | Santa Teresa del Niño Jesús (Parish) Church of St. Therese of the Infant Jesus |
| San Andrés | La Asunción y San Andrés (Parish) Church of the Assumption and St. Andrew |
| San Andrés | Nuestra Señora de Luján (Parish) Church of Our Lady of Lujan |
| San Martín |  Jesús Buen Pastor (Cathedral, Parish) Cathedral of Jesus the Shepherd |
| San Martín | María Inmaculada (Parish) Church of the Immaculate Mary |
| San Martín | Nuestra Señora del Santísimo Sacramento (Parish) Church of Our Lady of the Blessed Sacrament |
| Santos Lugares |  Nuestra Señora de Lourdes (Parish, Shrine) Shrine of Our Lady of Lourdes |
| Villa Ballester | Eucarístico (Parish, Shrine) Diocesan Eucharistic Shrine |
| Villa Ballester | Nuestra Señora de la Merced (Parish) Church of Our Lady of Mercy |
| Villa Ballester | Sagrado Corazón de Jesús (Parish) Church of the Sacred Heart of Jesus |
| Villa Bosch | Asunción de la Virgen y San Juan XXIII (Parish) Church of the Assumption of Mary and St. John XXIII |
| Villa Bosch | Nuestra Señora del Carmen (Parish) Church of Our Lady of Carmel |
| Villa Bosch | San Francisco de Asís (Parish) Church of St. Francis of Assisi |
| Villa Lynch | Santísimo Calvario (Parish) Church of the Sacred Calvary |
| Villa Maipú | San José (Parish) Church of St. Joseph |
| Villa Progreso de San Martín | Nuestra Señora del Rosario (Parish) Church of Our Lady of the Rosary |
| Cities | Other Churches Within the Diocesan Territory (1) |
| Buenos Aires |  Nuestra Señora del Líbano (Parish) (Maronite) Parish of Our Lady of Lebanon |
Last updated on 2025.12.22
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