| St. Oswald | | — | 13 Marktplatz, Lonnerstadt, 91475 | — | |
| St. Oswald | | — | 104 Tannenberg, Burggen, 86977 | — | |
| St. Oswald | | — | 42 Hauptstraße, Klingenmünster, 76831 | — | |
| St. Oswald | | — | 8 Obere Kirchgasse, Giebelstadt, 97232 | — | |
| St. Oswald | | — | 1 Wimpinaplatz, Buchen (Odenwald), 74722 | — | |
| St. Oswald | | — | 4 Grantschener Straße, Weinsberg, 74189 | — | |
| St. Oswald | | — | 26 Hauptstraße, Hepberg, 85120 | — | |
| St. Osmunds | | — | Castelnau, London, SW13 9RT | — | |
| St. Osio's Orthodox Church | | — | — | — | |
| St. Osdag | | — | 21 Sankt-Osdag-Straße, Neustadt am Rübenberge, 31535 | — | |
| St. Oscar Romero Catholic Community | | — | 57 South Broadview Street, Greenbrier, AR 72058 | — | |
| St. Onge United Church of Christ | | — | — | — | |
| St. Oliver Plunkett Catholic Church | | — | — | — | |
| St. Olga Orthodox Church | | — | 9495 Crockett Road, Brentwood, TN 37027 | — | |
| St. Olga church | | — | Ворзельський провулок | — | |
| St. Olavs kapell | | — | — | — | |
| St. Olaves Anglican Church | | — | 360 Windermere Avenue, Toronto | Verschoyle Wigmore 목사 | |
| St. Olave's Church | | — | — | — | |
| St. Olav's Danish Church | | — | — | — | |
| St. Olav kirke | | — | — | — | |
| St. Olav Kapell | | — | — | — | |
| St. Olav domkirke | | — | — | — | |
| St. Olaf's Church, Tyrvää | | — | 50 Kallialan kirkkotie, Sastamala, 38210 | — | |
| St. Olaf's Church | | — | — | — | |
| St. Olaf's Church | | — | — | — | |
| St. Olaf Lutheran Church | | — | — | — | |
| St. Olaf Lutheran Church | | — | — | — | |
| St. Olaf Lutheran Church | | — | 2901 North Emerson Avenue | Dale Hulme 목사 | |
| St. Olaf Catholic Church | | — | — | — | |
| St. Olaf | | — | — | — | |
| St. Olaf | | — | 1 Am Osterbach, Breklum, 25821 | — | |
| St. Odulph | | — | — | — | |
| St. Odisho Church | | — | — | — | |
| St. Odilon's Church | | — | — | — | |
| St. Odilia Kirche | | — | — | — | |
| St. Odilia | | — | — | — | |
| St. Odilia | | — | — | — | |
| St. Odilia | | — | 3495 Victoria Street, Shoreview, MN 55126 | — | |
| St. Odilia | | — | 5 Kirchplatz, Dormagen, 41542 | — | |
| St. Odigitria Cathedral | | — | — | — | |
| St. Oaul | | — | — | — | |
| St. Notburgis | | — | — | — | |
| St. Notburga | | — | Viersen, 41748 | — | |
| St. Notburga | | — | 2 Am Maurerberg, Petershausen, 85238 | — | |
| St. Nossonous | | — | Innishrush Road | — | |
| St. Norbertus Kapelle | | — | — | — | |
| St. Norbert Kirche | | — | 13 Ahornstraße, Lünen, 44534 | — | |
| St. Norbert Catholic Church | | — | 300 East Taft Avenue, Orange, CA 92865 | — | |
| St. Norbert Abbey | | — | 1016 North Broadway Street, De Pere, WI 54115 | — | |
| St. Norbert | | — | 6 Köldererstraße, Innsbruck, 6020 | — | |