| # | Dove’s Guide Entry | Grid Ref
 | Map |
|---|
| 10201 | Old Wolverton, Buckinghamshire, Holy Trinity (T).
6 (full-circle ring), 13 cwt (~700 kg) in G. Anticlockwise. Tue. | SP803412 | Map |
| 10202 | Oldberrow, Warwickshire, S Mary.
3 U/R (full-circle ring), 5 cwt (~250 kg) in C. Unringable; tuning: 1,1,4 of 4. | SP121659 | Map |
| 10203 | Oldbury, Shropshire, S Nicholas.
1 (chime), 4 cwt (~200 kg) in A♭. | SO710920 | Map |
| 10204 | Oldbury, West Midlands, Christ Church.
8 U/R (full-circle ring), 10½ cwt (~530 kg) in G. Unringable: electronic chiming only. | SO990894 | Map |
| 10205 | Oldbury on Severn, Gloucestershire, S Arilda (GF).
1 (full-circle ring), 5½ cwt (~280 kg) in D. | ST608919 | Map |
| 10206 | Oldbury on the Hill, Gloucestershire, S Arild (GF).
1 (full-circle ring), 5½ cwt (~280 kg) in B. | ST818882 | Map |
| 10207 | Oldcotes, Nottinghamshire, S Mark.
1 (chime). | SK587886 | Map |
| 10208 | Oldham, Greater Manchester, S Barnabas.
1 (chime). | SD943051 | Map |
| 10209 | Oldham, Greater Manchester, S James.
1 (chime), 2–3–25 (151 kg) in F♯. | SD937054 | Map |
| 10210 | Oldham, Greater Manchester, S John Bapt, Hey.
1 (chime), in F. | SD955050 | Map |
| 10211 | Oldham, Greater Manchester, S Mary (T).
12 (full-circle ring) plus 6♭, 35–0–4 (1780 kg) in D♭. | SD927051 | Map |
| 10212 | Oldham, Greater Manchester, S Stephen & All Martyrs.
1 (chime). | SD931057 | Map |
| 10213 | Oldham, Greater Manchester, S Thomas, Moorside.
8 (full-circle ring), 11–1–12 (577 kg) in F♯. Mon. | SD950075 | Map |
| 10214 | Oldhurst, Cambridgeshire, S Peter.
2 (chime), 2–1–11 (119 kg). | TL300773 | Map |
| 10215 | Oldland, Gloucestershire, S Anne.
1 (chime), 2 cwt (~100 kg). | ST668711 | Map |
| 10216 | Oldridge, Devon, S Thomas.
1 (chime). | SX828962 | Map |
| 10217 | Ollerton, Nottinghamshire, S Giles.
6 (hemispherical chime), 1–3–2 (90 kg) in D. | SK653673 | Map |
| 10218 | Ollerton, Nottinghamshire, S Giles.
1 (full-circle ring), 13–1–16 (680 kg). | SK653673 | Map |
| 10219 | Ollerton, Nottinghamshire, S Paulinus.
1 (chime), 3–0–23 (163 kg) in F. | SK664681 | Map |
| 10220 | Olney, Buckinghamshire, S Peter & S Paul (S, T).
10 (full-circle ring), 24–0–9 (1223 kg) in D. | SP889509 | Map |
| 10221 | Olton, West Midlands, S Margaret.
1 (chime), in C♯. | SP132822 | Map |
| 10222 | Olveston, Gloucestershire, S Mary V (T).
8 (full-circle ring), 18–3–8 (956 kg) in F. Fri. | ST600872 | Map |
| 10223 | Ombersley, Worcestershire, S Andrew (T).
6 (full-circle ring), 16–2–4 (840 kg) in E. | SO844635 | Map |
| 10224 | Onchan, Isle of Man, S Peter, Conchan, Kirk Onchan.
1 (chime), 5–0–9 (258 kg) in D. | SC400781 | Map |
| 10225 | Onecote, Staffordshire, S Luke.
1 (chime). | SK048551 | Map |
| 10226 | Onehouse, Suffolk, S John Bapt.
2 (chime), 2¾ cwt (~140 kg). Round tower. | TM016593 | Map |
| 10227 | Onibury, Shropshire, S Michael & All Angels.
4 U/R (full-circle ring), 5¾ cwt (~290 kg) in C♯. Unringable; tuning: (approx) 2,4-6 of 8. | SO455791 | Map |
| 10228 | Openshaw, Greater Manchester, S Barnabas.
1 (chime), 1–0–24 (62 kg) in A♯. | SJ876975 | Map |
| 10229 | Openwoodgate, Derbyshire, S Mark.
1 (chime). | SK369473 | Map |
| 10230 | Orange, New South Wales, Australia, Holy Trinity.
8 (full-circle ring), 6–3–15 (350 kg) in B♭. Tue (confirm first) 18:00. | | Map |
| 10231 | Orby, Lincolnshire, All Saints (GF, T).
3 (full-circle ring), 8–0–20 (415 kg) in A. Ringing temporarily suspended owing to the condition of the wheels; tuning: 1,3,4 of 4. | TF490672 | Map |
| 10232 | Orchard Portman, Somerset, S Michael.
4 (full-circle ring), 5 cwt (~250 kg) in B. | ST243216 | Map |
| 10233 | Orchardleigh, Somerset, The Blessed Virgin Mary.
1 (chime), in D. | ST773509 | Map |
| 10234 | Orcheston, Wiltshire, S George (GF).
4 (full-circle ring), 7 cwt (~360 kg) in A. No mains electricity. | SU059448 | Map |
| 10235 | Orcheston, Wiltshire, S Mary (GF).
3 (full-circle ring), 7–1–25 (380 kg) in B♭. | SU058456 | Map |
| 10236 | Orcop, Herefordshire, S John Bapt (GF).
5 (full-circle ring), 7½ cwt (~380 kg) in A♯. Tuning: 1-4,5♯ of 5. | SO473262 | Map |
| 10237 | Ordsall, Greater Manchester, S Clement.
1 (chime), 4–3–4 (243 kg) in C♯. | SJ817973 | Map |
| 10238 | Ordsall, Greater Manchester, S Ignatius Centre (formerly S Ignatius).
1 U/R (full-circle ring), 9–0–6 (460 kg) in A. Unringable. | SJ818977 | Map |
| 10239 | Ordsall, Nottinghamshire, All Hallows (T).
6 (full-circle ring), 6–2–22 (340 kg) in A. Tue. | SK704797 | Map |
| 10240 | Ore, East Sussex, Christ Church.
1 (chime). | TQ836113 | Map |
| 10241 | Ore, East Sussex, S Barnabas.
1 (chime). | TQ825114 | Map |
| 10242 | Ore, East Sussex, S Helen.
1 (chime). | TQ820123 | Map |
| 10243 | Oreston, Devon, Good Shepherd.
1 (chime). | SX499533 | Map |
| 10244 | Orford, Cheshire, S Andrew.
1 (chime), 5–0–14 (260 kg). | SJ612912 | Map |
| 10245 | Orford, Cheshire, S Margaret.
1 (chime), 4–3–5 (244 kg) in D. | SJ615900 | Map |
| 10246 | Orford, Suffolk, S Bartholomew.
8 (full-circle ring), 10–2–27 (546 kg) in G. | TM422499 | Map |
| 10247 | Orleans, Massachusetts, United States of America, The Transfiguration (GF, T).
10 (full-circle ring), 21–2–23 (1103 kg) in E♭. Detached tower. | | Map |
| 10248 | Orlestone, Kent, S Mary (GF).
3 (full-circle ring), 5 cwt (~300 kg) in C. Anticlockwise. | TR000346 | Map |
| 10249 | Orleton, Herefordshire, S George.
3 U/R (full-circle ring), 8½ cwt (~430 kg). Unringable: modified for chiming only but ringing fittings remain in tower. | SO494671 | Map |
| 10250 | Orlingbury, Northamptonshire, S Mary.
6 (full-circle ring), 10–2–18 (542 kg) in F. Tue. | SP859723 | Map |