| Metropolitan Archbishop (2020.12.04 – ...): |  Archbishop Marcel Damphousse (62) |
| Cities (Ontario) | Churches (140)  |
| Gloucester (Beacon Hill North) |  Annunciation of the Lord  |
| Ottawa | Assumption of the Blessed Virgin Mary |
| Cornwall | Blessed Sacrament |
| Ottawa | Blessed Sacrament |
| Orleans | Divine Infant |
| Ottawa |  Dominican University College (University) Collège Universitaire Dominicain |
| Gloucester (Blackburn Hamlet) | Good Shepherd |
| Ottawa | Holy Canadian Martyrs |
| Ottawa | Holy Cross |
| Ottawa | Holy Korean Martyrs (Korean) |
| Almonte | Holy Name of Mary |
| Kanata | Holy Redeemer |
| Gloucester (Cyrville) | Holy Spirit (Chinese) Sheng Shen Chinese Church 聖神天主堂 |
| Stittsville | Holy Spirit |
| Ottawa | Immaculate Heart of Mary |
| Ottawa | Madonna della Risurrezione (Italian) Church of Our Lady of the Resurrection |
| Ottawa | Marie-Médiatrice (French) Paroisse Saint-Frère-André Church of Mary Mediatrix |
| Cornwall |  Nativité de la Bienheureuse Vierge Marie (Former Cathedral, Parish) (French) Church of the Nativity of the Blessed Virgin Mary |
| Ottawa | Nativité-de-Notre-Seigneur-Jésus-Christ (French) Church of the Nativity of Jesus |
| Ottawa |  Notre-Dame-d’Ottawa (Cathedral, Minor Basilica) Cathedral Basilica of Our Lady of Ottawa |
| Ottawa | Notre-Dame-de-Lourdes (French) Church of Our Lady of Lourdes |
| Moose Creek | Notre-Dame des Anges (French) Church of Our Lady of the Angels |
| Navan | Notre-Dame-des-Champs (French) Church of Our Lady of the Fields |
| Crysler | Notre-Dame du Rosaire (French) Church of Our Lady of the Rosary |
| Pendleton | Our Lady of Divine Love |
| Ottawa | Our Lady of Fatima |
| Ingleside | Our Lady of Grace |
| Ottawa | Our Lady of La Vang (Vietnamese) |
| Ottawa | Our Lady of Mount Carmel |
| Russell | Our Lady of the Miraculous Medal |
| Greely | Our Lady of the Visitation |
| Glen Walter | Precious Blood |
| Ottawa | Queen of the Most Holy Rosary |
| Ottawa | Resurrection of Our Lord |
| Alexandria | Sacré-Coeur (French) Church of the Sacred Heart |
| Bourget | Sacré-Coeur (French) Church of the Sacred Heart |
| Ottawa | Sacré-Coeur (French) Church of the Sacred Heart |
| Ottawa | Sagrada Familia (Spanish) |
| Saint-Albert | Saint-Albert (French) Church of St. Albert |
| Ottawa | St. Albertus (German) |
| Lochiel | Saint-Alexandre (French) Church of St. Alexander |
| Saint Andrew’s West | St. Andrew |
| Ottawa | St. Anne (Latin) Parish of St. Clement |
| Sainte-Anne-de-Prescott | Sainte-Anne (French) Church of St. Anne |
| Apple Hill | St. Anthony |
| Ottawa | St. Anthony of Padua (Italian) |
| Ottawa | St. Augustine |
| Ottawa | St. Basil |
| Wendover | Saint-Benoît-Labre (French) Church of St. Benedict Joseph Labre |
| Finch | St. Bernard |
| Fournier | Saint-Bernard (French) Church of St. Bernard |
| Gloucester (Blossom Park) | St. Bernard |
| Saint-Bernardin | Saint-Bernardin (French) Church of St. Bernardine of Siena |
| Ottawa | Saint-Bonaventure (French) Church of St. Bonaventure |
| Manotick Station | St. Brigid |
| Greenfield |  St. Catherine of Siena |
| Metcalfe | St. Catherine of Siena |
| Dwyer Hill | St. Clare |
| Cornwall | St. Columban |
| Cornwall | Sainte-Croix (French) Church of the Holy Cross |
| Brightside | St. Declan |
| Rockland | St. Edith Stein |
| Ottawa | St. Elizabeth |
| Saint-Eugène | Saint-Eugène (French) Church of St. Eugene |
| Casselman | Sainte-Euphémie (French) |
| Clarence Creek | Sainte-Félicité (French) Church of St. Felicity |
| Cornwall | Saint-Félix-de-Valois (French) Church of St. Felix |
| Alexandria |  St. Finnan (Former Cathedral, Minor Basilica, Parish) |
| Cornwall | St. Francis de Sales |
| Ottawa | Saint-François-d’Assise (French) Church of St. Francis of Assisi |
| Constance Bay (Woodlawn) | St. Gabriel |
| Gloucester (Beacon Hill South) | Saint-Gabriel (French) Church of St. Gabriel |
| Ottawa | Sainte-Geneviève (French) Church of St. Genevieve |
| Ottawa | St. George |
| Vankleek Hill | Saint-Grégoire-de-Nazianze (French) Church of St. Gregory of Nazianzus |
| Vars | Saint-Guillaume (French) Church of St. William |
| Sarsfield | Saint-Hugues (French) Church of St. Hugh |
| Ottawa | St. Hyacinth (Polish) |
| Ottawa | St. Ignatius Martyr |
| Kanata (South March) | St. Isidore |
| Saint-Isidore | Saint-Isidore (French) Church of St. Isidore |
| Embrun | Saint-Jacques (French) Church of St. James |
| Maxville | St. James |
| L’Orignal | Saint-Jean-Baptiste (French) Church of St. John the Baptist |
| Ottawa | Saint-Jean-Baptiste (French) Church of St. John the Baptist |
| Chute-à-Blondeau | Saint-Joachim (French) Church of St. Joachim |
| Nepean | St. John the Apostle |
| Osgoode | St. John the Evangelist |
| Lancaster | St. Joseph |
| Orleans | Saint-Joseph (French) Church of St. Joseph |
| Ottawa | St. Joseph |
| Hawkesbury | St. Jude |
| Carlsbad Springs | Saint-Laurent (French) Church of St. Lawrence |
| Treadwell | Saint-Léon-le-Grand (French) Church of St. Leo the Great |
| Manotick | St. Leonard |
| Ottawa | St. Leopold Mandic (Croatian) |
| Ottawa | Saint-Louis-Marie-de-Montfort (French) Church of St. Louis de Montfort |
| Curran | Saint-Luc (French) Church of St. Luke |
| Cumberland | St. Margaret Mary |
| Ottawa | St. Margaret Mary |
| North Lancaster (South Glengarry) | St. Margaret of Scotland |
| Orleans | Sainte-Marie (French) Church of St. Mary |
| Green Valley | Sainte-Marie de l’Assomption (French) Church of St. Mary of the Assumption |
| Nepean (Bell’s Corners) | St. Martin de Porres |
| Glen Robertson | Saint-Martin-de-Tours (French) Church of St. Martin of Tours |
| Ottawa | St. Mary Church of Our Lady of Good Counsel |
| Williamstown | St. Mary |
| Hammond | Saint-Mathieu (French) Church of St. Matthew |
| Nepean | St. Maurice |
| Corkery (Carp) | St. Michael |
| Fitzroy Harbour | St. Michael |
| Monkland | St. Michael |
| Nepean | St. Monica |
| Saint-Pascal-Baylon | Saint-Pascal-Baylon (French) Church of St. Pascal Baylon |
| Ottawa |  St. Patrick (Minor Basilica, Parish) |
| Nepean (Fallowfield) | St. Patrick |
| Plantagenet | Saint-Paul (French) Church of St. Paul |
| Ottawa |  St. Paul’s University (Seminary) Séminaire universitaire Saint-Paul |
| Cornwall | St. Peter |
| Ottawa | St. Peter |
| Pakenham | St. Peter Celestine |
| Richmond | St. Philip |
| Hawkesbury | Saint-Pierre-Apôtre (French) Church of St. Peter the Apostle |
| Long Sault | St. Pius X |
| Saint Raphaels (South Glengarry) | St. Raphael |
| Saint Raphaels (South Glengarry) | St. Raphael |
| Ottawa | Saint-Remi (French) Church of St. Remigius |
| Ottawa | Saint-Sébastien (French) Church of St. Sebastian |
| Ottawa | St. Theresa of the Child Jesus |
| Marionville | Sainte-Thérèse d’Avila (French) Church of St. Teresa of Avila |
| Cornwall | Sainte-Thérèse-de-Lisieux (French) Church of St. Therese of the Child Jesus |
| Lefaivre | Saint-Thomas (French) Church of St. Thomas |
| Ottawa | Saint-Thomas d’Aquin (French) Church of St. Thomas Aquinas |
| Limoges | Saint-Viateur (French) Church of St. Viator |
| Alfred | Saint-Victor (French) Church of St. Victor |
| Martintown | St. William |
| Gloucester (Cyrville) | Senhor Santo Cristo (Portuguese) Church of the Holy Christ the Lord |
| Ottawa |  Soeurs de la Charité (Monastery) Motherhouse of the Sisters of Charity |
| Rockland | Très-Sainte-Trinité (French) Church of the Holy Trinity |
| Ottawa | (Grotto of Our Lady of Lourdes) (Shrine) |
| Cities | Other Churches Within the Diocesan Territory (7) |
| Ottawa | Annunciation of the Blessed Virgin Mary |
| Ottawa | Annunciation of the Blessed Virgin Mary (Parish) |
| Gloucester | Our Lady of the Airways |
| Ottawa |  St. Charbel (Maronite) |
| Ottawa |  St. John the Baptist (National Shrine, Parish) (Ukrainian) |
| Ottawa | St. Paul (Syriac) |
| Ottawa | Saints-Pierre-et-Paul (Greek-Melkite) Church of Sts. Peter and Paul |
Last updated on 2025.12.22
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