| St Oswald and St Edmund Arrowsmith Church | | — | Liverpool Road, Wigan, WN4 9NP | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | — | — | |
| St Oswald | | — | Scunthorpe, DN17 3HX | — | |
| St Oswald | | — | Scunthorpe, DN17 4LE | — | |
| St Oswald | | — | Houghton-le-Spring, DH4 7JU | — | |
| St Oswald | | — | Bollington Road, Macclesfield, SK10 5EG | — | |
| St Oswald | | — | Lancaster Road, Poulton-le-Fylde, FY6 0DU | — | |
| St Oswald | | — | Bristol, GL13 9DX | — | |
| St Oswald | | — | Church Lane, Chester, CH2 4BE | — | |
| St Oswald | | — | Front Street, Thirsk, YO7 1JG | — | |
| St Oswald | | — | Newark, NG23 5QF | — | |
| St Oswald | | — | Cheddar Grove, Bristol, BS13 7EN | — | |
| St Oswald | | — | Leathley Lane, Otley, LS21 2JU | — | |
| St Ostwald Church | | — | 1/4 to 2/4, Bakloh, 176301 | — | |
| St Osmund's RC Church | | — | — | — | |
| St Osmund's | | — | — | — | |
| St Osmund Chapel of Ease | | — | — | — | |
| St Osmund Catholic Church | | — | 95 Exeter Street, Salisbury | — | |
| St Osmund | | — | — | — | |
| St Osmond | | — | DT3 6EL | — | |
| St Osburg | | — | — | — | |
| St Oran's Church | | — | — | — | |
| St Oran's Chapel | | — | — | — | |
| St Oliver Plunkett's Church Kilcloon | | — | Kilgraigue, Kilcloon | — | |
| St Oliver Plunkett's Church | | — | Parkmore Drive, Strathfoyle, BT47 6XY | — | |
| St Oliver Plunkett's Church | | — | Mayogall Road, Clady | — | |
| St Oliver Plunkett's Church | | — | — | — | |
| St Oliver Plunkett | | — | — | — | |
| St Oliver Plunkett | | — | Main Street, Newry | — | |
| St Oliver Plunket'sChurch | | — | Roxborough Road | — | |
| St Olga Ukrainian Catholic Church | | — | 67 New Road, Peterborough, PE2 9HD | — | |
| St Olcans | | — | Glenshesk Road | — | |
| St Olaves | | — | Marygate, York, YO30 7BH | — | |
| St Olave's Woodberry Down | | — | — | — | |
| St Olave's Church | | — | — | — | |
| St Olave's Church | | — | Church Walk, London, SW16 5JH | — | |
| St Olave's Anglican Church | | — | — | — | |
| St Olave's | | — | 162 Fore Street, Exeter, EX4 3AT | — | |
| St Olave Hart Street | | — | 8 Hart Street, London, EC3R 7NB | — | |
| St Olave | | — | — | — | |
| St Olave | | — | North Street, Fritwell, OX27 7QW | — | |
| St Olav's Norwegian | | — | — | — | |