| Bishop (2012.11.10 – ...): |  Bishop Serge Poitras Patrick (76) |
Cities (Ontario)  | Churches (24) |
| Belle-Vallée |  Notre-Dame-de-Bon-Secours (French)  Church of Our Lady of Help |
| Cobalt | St. Patrick |
| Earlton | Saint-Jean Baptiste (French) Church of St. John the Baptist |
| Elk Lake | Nativité (French) Church of the Nativity |
| Englehart | Holy Trinity |
| Haileybury |  Sainte-Croix (Former Cathedral) (French) Former Cathedral of the Holy Cross |
| Holtyre | Très-Saint-Rédempteur (French) Church of the Holy Redeemer |
| Iroquois Falls | Sainte-Anne (French) Church of St. Anne |
| Iroquois Falls | Saints-Martyrs-Canadiens (French) Church of the Canadian Martyr Saints |
| Kirkland Lake | Assomption-de-la-Bienheureuse-Vierge-Marie (French) Church of the Assumption of Mary |
| Kirkland Lake | Holy Name of Jesus |
| Larder Lake | Notre-Dame-du-Lac (French) Church of Our Lady of the Lake |
| Matheson | Marie-Reine-du-Monde (French) Church of the Mary Queen of the World |
| New Liskeard | Our Mother of Perpetual Help |
| New Liskeard | Sacré-Coeur-de-Jésus (French) Church of the Sacred Heart |
| Ramore | Saint-Laurent (French) Church of St. Lawrence |
| South Porcupine | St. Joachim (English, French) |
| Timmins |  Saint-Antoine-de-Padoue (Cathedral) Cathedral of St. Anthony of Padua |
| Timmins | Notre-Dame-de-la-Paix (French) Church of Our Lady of Peace |
| Timmins | Sacred Heart |
| Timmins | Saint-Dominique-du-Rosaire (French) Church of St. Dominic of the Rosary |
| Timmins | Saint-Joseph (French) Church of St. Joseph |
| Val-Gagné | Immaculée-Conception (French) Church of the Immaculate Conception |
| Virginiatown | Saint-Pierre-Apôtre (French) Church of St. Peter the Apostle |
| Cities | Other Churches Within the Diocesan Territory (2) |
| Kirkland Lake |  St. Vladimir (Parish) (Ukrainian) |
| Virginiatown | Dormition of the Mother of God (Ukrainian) |
Last updated on 2025.12.22
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