| # | Dove’s Guide Entry | Grid Ref
 | Map |
|---|
| 2551 | Old Buckenham, Norfolk, All Saints.
6 (chime), 8–2–0 (432 kg). Ellacombe apparatus. | TM067914 | Map |
| 2552 | Old Clee, Lincolnshire, Christ Church.
1 (chime). | TA300091 | Map |
| 2553 | Old Cleeve, Somerset, S Andrew.
8 (full-circle ring), 18–1–6 (930 kg) in F. Mon 14:00. | ST040419 | Map |
| 2554 | Old Dalby, Leicestershire, S John Bapt (GF).
4 (full-circle ring), 9–2–2 (484 kg) in G. | SK673235 | Map |
| 2555 | Old Fletton, Cambridgeshire, S Margaret (GF, T).
5 (full-circle ring), 7–3–26 (406 kg) in A♭. | TL197970 | Map |
| 2556 | Old Hill, West Midlands, Holy Trinity.
8 (full-circle ring), 23–1–0 (1181 kg) in F. | SO955862 | Map |
| 2557 | Old Lakenham, Norfolk, S John Bapt & All Saints.
3 (chime), 4–0–22 (213 kg) in B. | TG233060 | Map |
| 2558 | Old Leake, Lincolnshire, S Mary (GF).
6 (full-circle ring), 11 cwt (~560 kg) in F♯. | TF407502 | Map |
| 2559 | Old Swinford, West Midlands, S Mary (T).
8 (full-circle ring), 10–3–12 (552 kg) in F♯. | SO907831 | Map |
| 2560 | Old Warden, Bedfordshire, S Leonard (GF).
6 (full-circle ring), 9–0–22 (467 kg) in G. | TL136443 | Map |
| 2561 | Old Whittington, Derbyshire, S Bartholomew (T).
6 (full-circle ring), 5–0–20 (263 kg) in C. Fri. | SK384752 | Map |
| 2562 | Old Woking, Surrey, S Peter (T).
8 (full-circle ring), 17–0–18 (872 kg) in E. Wed. | TQ020568 | Map |
| 2563 | Oldham, Greater Manchester, S John Bapt, Hey.
1 (chime), in F. | SD955050 | Map |
| 2564 | Oldham, Greater Manchester, S Mary (T).
12 (full-circle ring) plus 6♭, 35–0–4 (1780 kg) in D♭. | SD927051 | Map |
| 2565 | Ollerton, Nottinghamshire, S Paulinus.
1 (chime), 3–0–23 (163 kg) in F. | SK664681 | Map |
| 2566 | Olveston, Gloucestershire, S Mary V (T).
8 (full-circle ring), 18–3–8 (956 kg) in F. Fri. | ST600872 | Map |
| 2567 | Ombersley, Worcestershire, S Andrew (T).
6 (full-circle ring), 16–2–4 (840 kg) in E. | SO844635 | Map |
| 2568 | Onchan, Isle of Man, S Peter, Conchan, Kirk Onchan.
2 (chime), 5–0–9 (258 kg) in D. Steel bell: Disused. | SC400781 | Map |
| 2569 | Openshaw, Greater Manchester, S Barnabas.
1 (chime), 1–0–24 (62 kg) in A♯. | SJ876975 | Map |
| 2570 | Orange, New South Wales, Australia, Holy Trinity.
8 (full-circle ring), 6–3–15 (350 kg) in B♭. Tue (confirm first) 18:00. | | Map |
| 2571 | Orcheston, Wiltshire, S Mary (GF).
3 (full-circle ring), 7–1–25 (380 kg) in B♭. | SU058456 | Map |
| 2572 | 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 |
| 2573 | Ordsall, Nottinghamshire, All Hallows (T).
6 (full-circle ring), 6–2–22 (340 kg) in A. Tue. | SK704797 | Map |
| 2574 | Orford, Cheshire, S Andrew.
1 (chime), 5–0–14 (260 kg). | SJ612912 | Map |
| 2575 | Ormesby, North Yorkshire, S Cuthbert (T).
8 (full-circle ring), 18–0–14 (921 kg) in E. Wed. | NZ530167 | Map |
| 2576 | Ormskirk, Lancashire, S Peter & S Paul.
8 (full-circle ring), 21–1–26 (1091 kg) in E♭. In the tower. Tue (3rd, 4th, 5th: 1st & 2nd are at Aughton, Christ Church). | SD412084 | Map |
| 2577 | Orpington, Greater London, Christ Church.
1 (chime). | TQ468649 | Map |
| 2578 | Orrell, Greater Manchester, S Luke.
1 (chime), 2–3–14 (146 kg). | SD530038 | Map |
| 2579 | Orton, Cumbria, All Saints (T).
8 (full-circle ring), 12–3–13 (654 kg) in F♯. Sat (2nd) 10:00. | NY622083 | Map |
| 2580 | Orwell, Cambridgeshire, S Andrew (GF).
8 (full-circle ring), 11–0–7 (562 kg) in F♯. | TL362505 | Map |
| 2581 | Osgathorpe, Leicestershire, S Mary V.
2 (chime), 9–3–26 (507 kg) in G. | SK431195 | Map |
| 2582 | Osmondthorpe, West Yorkshire, S Philip.
1 (chime), 2–0–4 (103 kg) in G. | SE331337 | Map |
| 2583 | Osmotherley, North Yorkshire, S Peter (GF, T).
4 (chime), 6–2–13 (336 kg) in B♭. | SE455971 | Map |
| 2584 | Ospringe, Kent, S Peter & S Paul.
8 (full-circle ring), 17–1–8 (880 kg) in F♯. Fri. | TR000603 | Map |
| 2585 | Ossett, West Yorkshire, Holy & Undivided Trinity.
15 (full-circle ring) plus 5♯, 27–1–25 (1396 kg) in D. Thu. | SE276211 | Map |
| 2586 | Ossington, Nottinghamshire, Holy Rood (GF).
6 (full-circle ring), 6–0–17 (313 kg) in B♭. | SK759651 | Map |
| 2587 | Ossington, Nottinghamshire, Holy Rood.
(other bells). | SK759651 | Map |
| 2588 | Oswaldtwistle, Lancashire, Immanuel (T).
8 (full-circle ring), 11–0–21 (568 kg) in G. Thu. | SD733267 | Map |
| 2589 | Oswaldtwistle, Lancashire, S Paul.
1 (chime), 2–0–6 (104 kg). | SD743275 | Map |
| 2590 | Oswestry, Shropshire, S Oswald K&M (S).
8 (full-circle ring), 13–3–19 (707 kg) in F. Ellacombe apparatus. Thu. | SJ288293 | Map |
| 2591 | Otham, Kent, S Nicholas (T).
6 (full-circle ring), 7–1–3 (370 kg) in A. | TQ789540 | Map |
| 2592 | Otley, Suffolk, S Mary (GF, T).
6 (full-circle ring), 9–3–18 (503 kg) in G. Tue. | TM203549 | Map |
| 2593 | Ottershaw, Surrey, Christ Church.
6 (full-circle ring), 16–1–14 (832 kg) in F. Wed. | TQ020634 | Map |
| 2594 | Otterton, Devon, S Michael.
6 (full-circle ring), 12–0–4 (611 kg) in F♯. Wed. | SY080851 | Map |
| 2595 | Ottery St Mary, Devon, S Mary V (GF, T).
8 (full-circle ring), 18–2–14 (946 kg) in E. Rung from transept: south. Mon. | SY098955 | Map |
| 2596 | Oughtibridge, South Yorkshire, The Ascension.
1 (chime), 1–3–27 (101 kg). | SK305932 | Map |
| 2597 | Oughtrington, Cheshire, S Peter.
1 (chime), 17–1–14 (883 kg) in F. | SJ694871 | Map |
| 2598 | Oulton Broad, Suffolk, S Mark.
1 (chime), 2–1–3 (116 kg) in F♯. | TM520923 | Map |
| 2599 | Over, Cheshire, S Chad (T).
8 (full-circle ring), 13–2–15 (693 kg) in F♯. Wed. | SJ650650 | Map |
| 2600 | Over Compton, Dorset, S Michael.
4 U/R (full-circle ring), 11–3–1 (597 kg) in F♯. Unringable. | ST594169 | Map |