| Saint Agnes Catholic Church | — | 75 Bluevale Street North, Waterloo | — | |
| Saint Aidan | — | — | — | |
| Saint Aidan's Anglican Church | — | 1246 Oxford Street West, London | — | |
| Saint Alban the Martyr | — | 1350 Huron Street, London | — | |
| Saint Alban the Martyr Anglican Church | — | 19 Saint Albans Drive, Acton | — | |
| Saint Alban the Martyr Anglican Church | — | — | — | |
| Saint Alban the Martyr Anglican Church | — | — | — | |
| Saint Alban's | — | 87 Rue Osborne | — | |
| Saint Alban's Anglican Church | — | 28 Main Street North, Grand Valley | — | |
| Saint Alban's Anglican Church | — | 7260 Saint Albans Road | — | |
| Saint Alban's Anglican Church | — | 3 Post Office Road | — | |
| Saint Alban's Anglican Church | — | — | — | |
| Saint Albans Anglican Church | — | 19 Talbot Road, Delhi | — | |
| Saint Aloysius | — | 11 Traynor Avenue, Kitchener, N2C 1W1 | — | |
| Saint Aloysius Gonzaga Church | — | 300 Rue de l'Abbé-Murray, J8P 4Z4 | — | |
| Saint Alphonsus Catholic Church | — | — | — | |
| Saint Alphonsus Church | — | 315 Munroe Avenue | — | |
| Saint Alphonsus Roman Catholic Church | — | 22 Church Street, Hampton | — | |
| Saint Ambrose Anglican | — | — | — | |
| Saint Ambrose Church | — | 210 South Street, Cambridge | — | |
| Saint Ambrose Church | — | 17 Flora Street, Brussels | — | |
| Saint Ambrose Co-Cathedral | — | 65 Green Street, B5A 1Z6 | — | |
| Saint Andrew and Saint David | — | 164 Germain Street, Saint John | — | |
| Saint Andrew Bobola | — | 541 Marion Street | — | |
| Saint Andrew Kim Korean Catholic Church | — | 258 Clarke Road, London | — | |
| Saint Andrew Memorial Anglican Church | — | 55 Foxbar Road, London | — | |
| Saint Andrew Presbyterian Church | — | 5378 Nauvoo Road, Watford | — | |
| Saint Andrew Presbyterian Church | — | 25 St. Andrew Street, Stratford | — | |
| Saint Andrew Romanian Orthodox Church | — | 10401 Braeside Drive SW, Calgary | — | |
| Saint Andrew The Apostle Church | — | 1 Fallons Lane, London | — | |
| Saint Andrew's | — | 441 Boulevard de York Ouest, Gaspé, G4X 2M5 | — | |
| Saint Andrew's | — | — | — | |
| Saint Andrew's Anglican Church | — | 545 Route 860, French Village | — | |
| Saint Andrew's by the Sea United Church | — | — | — | |
| Saint Andrew's Cathedral | — | 740 View Street, V8W 1J8 | — | |
| Saint Andrew's Catholic Church | — | — | — | |
| Saint Andrew's Catholic Church | — | — | — | |
| Saint Andrew's Church | — | 325 St George Street West, Fergus | — | |
| Saint Andrew's Hespeler Presbyterian Church | — | 73 Queen Street East, Cambridge | — | |
| Saint Andrew's Kirk | — | 198 Hammond River Road, Quispamsis | — | |
| Saint Andrew's Memorial Anglican Church | — | 275 Mill Street, Kitchener, N2M 3R4 | — | |
| Saint Andrew's Parish | — | 480 East 47th Avenue, V5W 2B4 | — | |
| Saint Andrew's Presbyterian Chruch | — | 81 Main Street, Hillsburgh | — | |
| Saint Andrew's Presbyterian Church | — | 8503 Scotchmere Drive, Strathroy | — | |
| Saint Andrew's Presbyterian Church | — | 54 Queen Street North, Kitchener | — | |
| Saint Andrew's Presbyterian Church | — | 161 Norfolk Street, Guelph, N1H 2J7 | — | |
| Saint Andrew's Presbyterian Church | — | 152 Albert Street, Strathroy | — | |
| Saint Andrew's Presbyterian Church | — | 8 Peel Street East, Alma | — | |
| Saint Andrew's Presbyterian Church | — | 281 Josephine Street, Wingham | — | |
| Saint Andrew's Presbyterian Church | — | 48 Brock Street West, Tillsonburg | — | |