| Bishop (2022.06.24 – ...): |  Bishop Pierre-Olivier Tremblay, O.M.I. (55) |
| Cities (Ontario) | Churches (34)  |
| Moosonee |  Christ the King (Former Cathedral, Minor Basilica, Parish)  |
| Fort Albany |  Holy Angels |
| Pickle Lake | Holy Rosary |
| Aroland | Immaculate Heart of Mary |
| Kapuskasing | Immaculée-Conception (French) Church of the Immaculate Conception |
| Longlac | Infant Jesus |
| Landsowne House | Marie-Médiatrice (French) Church of Mary Mediatrix |
| Moonbeam | Nativité-de-Marie (French) Church of the Nativity of Mary |
| Hearst |  Notre-Dame-de-l’Assomption (Cathedral) (French) Cathedral of Our Lady of the Assumption |
| Foleyet | Notre-Dame-des-Sept-Douleurs (French) Church of Our Lady of the Seven Sorrows |
| Kapuskasing | Notre-Dame-des-Victoires (French) Church of Our Lady of Victory |
| Gogama | Notre-Dame-du-Rosaire (French) Church of Our Lady of the Rosary |
| Genier | Notre-Dames-des-Oliviers (French) Church of Our Lady |
| Fort Hope | Our Lady of Hope |
| Chapleau | Sacré-Coeur-de-Jésus (French) Church of the Sacred Heart |
| Ogoki | Sacred Heart of Jesus |
| Fort Severn | Sacrés-Coeurs de Jésus et Marie (French) Church of the Sacred Hearts of Jesus and Mary |
| Fauquier | Sainte-Agnès (French) Church of St. Agnes |
| Opasatika | Saint-Antoine-de-Padoue (French) Church of St. Anthony of Padua |
| Nakina | St. Brigid |
| Attawapiskat | Saint-François-Xavier (French) Church of St. Francis Xavier |
| Mattice | Saint-François-Xavier (French) Church of St. Francis Xavier |
| Smooth Rock Falls | Sainte-Gertrude (French) Church of St. Gertrude |
| Longlac | Saint-Jean-Baptiste (French) Church of St. John the Baptist |
| Sultan | Saint-Jean-de-Brébeuf (French) Church of St. John Brébeuf |
| Peawanuck | St. Kateri Tekakwitha |
| Jogues-Coppell | Saints-Martyrs-Canadiens (French) Church of the Canadian Martyr Saints |
| Hornepayne | Saint-Nom-de-Jésus (French) Church of the Holy Name of Jesus |
| Kapuskasing | Saint-Patrick (French) Church of St. Patrick |
| Val-Rita | Sainte-Rita (French) Church of St. Rita |
| Harty | Saint-Stanislas (French) Church of St. Stanislaus |
| Geraldton | Sainte-Thérèse (French) Church of St. Therese |
| Cochrane | Transfiguration (French) Church of the Transfiguration |
| Ivanhoe Lake | (Chapelle d’été) (French) |
Last updated on 2025.12.22
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