| The Orthbox Church in Toyohashi | | — | — | — | |
| The Original Lagro United Methodist Church | | — | — | — | |
| The Original Church of God | | — | 2580 Fullerton Street, Detroit, MI 48238 | — | |
| The Original Church of God | | — | — | — | |
| The Orchard Community | | — | 1175 Oak Street, North Aurora, IL 60542 | — | |
| The Orchard Church | | — | — | — | |
| The Orchard Church | | — | — | — | |
| The Orchard Church | | — | — | — | |
| The Orchard Church | | — | 20 Macloughlin Drive, Te Puke, 3119 | — | |
| The Orchard Church | | — | 7288 APD Highway, Ellijay, GA 30536 | — | |
| The Orchard Church | | — | 7190 McKenzie Road, Olmsted Township, OH 44138 | — | |
| The Orchard Arlington Heights | | — | 1330 North Douglas Avenue, Arlington Heights, IL 60004 | — | |
| The Orchard | | — | 1056 Portsmouth Boulevard, Suffolk, VA 23434 | — | |
| The Orchard | | — | 1 North Street, Gorham, ME 04038 | — | |
| The Orchard | | — | — | — | |
| The Oratory of Saint Francis Xavier | | — | — | — | |
| The Oratory Church of St. Boniface | | — | 190 Duffield Street, 11201 | Joseph Raffeiner 목사 | |
| The Oratory | | — | — | — | |
| The Oratory | | — | — | — | |
| The Oratory | | — | Ringaskiddy | — | |
| The Open Door Church of God in Christ | | — | — | — | |
| The Open Door Christian Fellowship | | — | 6 Ramsey Close, Norwich, NR4 7BQ | — | |
| The Open Door Christian Fellowship | | — | — | — | |
| The Open Door Assembly of God | | — | — | — | |
| The Open Church | | — | — | — | |
| The Open Bible Church | | — | — | — | |
| The One at Ederle Chapel | | — | — | — | |
| The Omaha Hub | | — | 10599 Burt Circle, Omaha, NE 68114 | — | |
| The Olive Branch Christian Fellowship | | — | 1101 Columbus Avenue, Waco, TX 76701 | — | |
| The Olive Branch | | — | — | — | |
| The Oldest Church | | — | — | — | |
| The old wooden church of Bârsana | | — | — | — | |
| The Old Rugged Cross Missionary Baptist Church | | — | — | — | |
| The Old Presbyterian Church Of Larne & Kilwaughter | | — | 5 Ballymena Road, Larne, BT40 2AD | — | |
| The Old Presbyterian Church | | — | Cairncastle Road, Carncastle | — | |
| The Old Pentecost Church | | — | — | — | |
| The old path revival commission | | — | — | — | |
| The Old Parish Church of Kirkmaiden | | — | — | — | |
| The Old Parish Centre | | — | — | — | |
| The Old Methodist Church | | — | 34 Herbert Street, Allora | — | |
| The Old Meetinghouse Church | | — | — | — | |
| The Old Meeting House Congregational Church | | — | Colegate, Norwich, NR3 1BW | — | |
| The Old Meeting House | | — | The Twitten, Hassocks, BN6 8UJ | — | |
| The Old Meeting | | — | — | — | |
| The Old Log Church | | — | — | — | |
| The Old Landmark Church of God Holiness in Christ | | — | 7201-7209 South Jeffery Boulevard, Chicago, IL 60649 | — | |
| The Old Kirk & Muirhouse Parish Church | | — | 42 Pennywell Gardens, Edinburgh, EH4 4PE | — | |
| The Old King James Church | | — | — | — | |
| The Old Haszard Street Church | | — | 29 Haszard Street, Waihi, 3610 | — | |
| The Old Grantsville Church | | — | 297 West Clark Street, Grantsville, UT 84029 | — | |