|
# | Tower | Bell | Weight | Note | Diameter | Cast | Founder |
| 40901 | Onibury, Shropshire, S Michael & All Angels | 2 of 4 | 4 cwt | E | 26.13″ | c1350† | John of Gloucester |
| 40902 | Onibury, Shropshire, S Michael & All Angels | 3 of 4 | 4½ cwt | D | 28.38″ | c1350† | John of Gloucester |
| 40903 | Onibury, Shropshire, S Michael & All Angels | 4 of 4 | 5¾ cwt | C♯ | 31.25″ | 1676 | Henry Clibury |
| 40904 | Openshaw, Greater Manchester, S Barnabas | 1 of chime | 1–0–24 | A♯ | 17.63″ | 1961 | John Taylor & Co |
| 40905 | Openwoodgate, Derbyshire, S Mark | 1 of chime | | | | | |
| 40906 | Orange, New South Wales, Australia, Holy Trinity | 1 of 8 | 2–3–14 | B♭ | 22.00″ | 2005 | John Taylor Bellfounders Ltd |
| 40907 | Orange, New South Wales, Australia, Holy Trinity | 2 of 8 | 2–3–24 | A | 22.50″ | 2005 | John Taylor Bellfounders Ltd |
| 40908 | Orange, New South Wales, Australia, Holy Trinity | 3 of 8 | 2–3–4 | G | 23.50″ | 1879 | John Taylor & Co |
| 40909 | Orange, New South Wales, Australia, Holy Trinity | 4 of 8 | 2–3–10 | F | 24.00″ | 1964 | John Taylor & Co |
| 40910 | Orange, New South Wales, Australia, Holy Trinity | 5 of 8 | 3–2–16 | E♭ | 26.00″ | 2004 | John Taylor Bellfounders Ltd |
| 40911 | Orange, New South Wales, Australia, Holy Trinity | 6 of 8 | 4–2–4 | D | 28.38″ | 1907 | Gillett & Johnston |
| 40912 | Orange, New South Wales, Australia, Holy Trinity | 7 of 8 | 5–2–24 | C | 32.00″ | 1814 | Thomas II Mears |
| 40913 | Orange, New South Wales, Australia, Holy Trinity | 8 of 8 | 6–3–15 | B♭ | 33.88″ | 1754 | Abel Rudhall |
| 40914 | Orby, Lincolnshire, All Saints | 1 of 3 | | D | 30.00″ | 1663 | Thomas Norris |
| 40915 | Orby, Lincolnshire, All Saints | 2 of 3 | | B | 33.00″ | 1663 | Thomas Norris |
| 40916 | Orby, Lincolnshire, All Saints | 3 of 3 | 8–0–20 | A | 36.88″ | c1499† | ROS |
| 40917 | Orby, Lincolnshire, All Saints | Sanctus | | E♭ | 13.00″ | 1610 | (unidentified) |
| 40918 | Orchard Portman, Somerset, S Michael | 1 of 4 | 3½ cwt | E | 24.38″ | 1657† | William III & Richard II Purdue |
| 40919 | Orchard Portman, Somerset, S Michael | 2 of 4 | 3½ cwt | D♯ | 25.25″ | 1746 | William Knight |
| 40920 | Orchard Portman, Somerset, S Michael | 3 of 4 | 4 cwt | C♯ | 28.00″ | 1657† | William III & Richard II Purdue |
| 40921 | Orchard Portman, Somerset, S Michael | 4 of 4 | 5 cwt | B | 30.00″ | 1892 | Llewellins & James |
| 40922 | Orchardleigh, Somerset, The Blessed Virgin Mary | 1 of chime | | D | 16.75″ | c1700 | Unidentified (blank) |
| 40923 | Orcheston, Wiltshire, S George | 1 of 4 | | D | 26.00″ | 1896 | John Warner & Sons |
| 40924 | Orcheston, Wiltshire, S George | 2 of 4 | | C♯ | 27.13″ | 1615 | John Wallis |
| 40925 | Orcheston, Wiltshire, S George | 3 of 4 | | B | 30.25″ | c1400† | Salisbury foundry |
| 40926 | Orcheston, Wiltshire, S George | 4 of 4 | 7 cwt | A | 33.00″ | 1896 | John Warner & Sons |
| 40927 | Orcheston, Wiltshire, S Mary | 1 of 3 | 3–3–6 | D | 27.50″ | 1916 | John Taylor & Co |
| 40928 | Orcheston, Wiltshire, S Mary | 2 of 3 | 5–0–2 | C | 30.63″ | 1916 | John Taylor & Co |
| 40929 | Orcheston, Wiltshire, S Mary | 3 of 3 | 7–1–25 | B♭ | 34.50″ | 1916 | John Taylor & Co |
| 40930 | Orcop, Herefordshire, S John Bapt | 1 of 5 | 4½ cwt | E | 27.00″ | 1907 | James Barwell & Co |
| 40931 | Orcop, Herefordshire, S John Bapt | 2 of 5 | 4 cwt | D | 26.75″ | 1663† | John I Pennington ('IP') |
| 40932 | Orcop, Herefordshire, S John Bapt | 3 of 5 | 5¾ cwt | C♯ | 30.50″ | 1731 | Abraham II Rudhall |
| 40933 | Orcop, Herefordshire, S John Bapt | 4 of 5 | 5¼ cwt | B | 31.50″ | 1663† | John I Pennington ('IP') |
| 40934 | Orcop, Herefordshire, S John Bapt | 5 of 5 | 7½ cwt | A♯ | 34.25″ | 1679† | ? John II Pennington ('IP') |
| 40935 | Ordsall, Greater Manchester, S Clement | 1 of chime | 4–3–4 | C♯ | 29.75″ | 1878 | Gillett & Bland |
| 40936 | Ordsall, Greater Manchester, S Ignatius Centre (formerly S Ignatius) | 1 of 1 | 9–0–6 | A | 36.63″ | 1903 | John Taylor & Co |
| 40937 | Ordsall, Nottinghamshire, All Hallows | 1 of 6 | 3–1–12 | F♯ | 24.50″ | 1892 | John Taylor & Co |
| 40938 | Ordsall, Nottinghamshire, All Hallows | 2 of 6 | 4–1–6 | E | 26.50″ | 1892 | John Taylor & Co |
| 40939 | Ordsall, Nottinghamshire, All Hallows | 3 of 6 | 5–0–0 | D | 28.50″ | 1892 | John Taylor & Co |
| 40940 | Ordsall, Nottinghamshire, All Hallows | 4 of 6 | 5–1–9 | C♯ | 29.50″ | 1892 | John Taylor & Co |
| 40941 | Ordsall, Nottinghamshire, All Hallows | 5 of 6 | 5–2–10 | B | 31.63″ | 1743 | Daniel Hedderly |
| 40942 | Ordsall, Nottinghamshire, All Hallows | 6 of 6 | 6–2–22 | A | 34.50″ | 1661 | George I Oldfield |
| 40943 | Ore, East Sussex, Christ Church | 1 of chime | | | 26.13″ | 1859 | G Mears & Co |
| 40944 | Ore, East Sussex, S Barnabas | 1 of chime | | | 13.75″ | | John Warner & Sons |
| 40945 | Ore, East Sussex, S Helen | 1 of chime | | | 30.25″ | 1814 | Thomas II Mears |
| 40946 | Oreston, Devon, Good Shepherd | 1 of chime | | | 12.00″ | | John Warner & Sons |
| 40947 | Orford, Cheshire, S Andrew | 1 of chime | 5–0–14 | | 30.00″ | | John Taylor & Co |
| 40948 | Orford, Cheshire, S Margaret | 1 of chime | 4–3–5 | D | 28.38″ | 1909 | Gillett & Johnston |
| 40949 | Orford, Suffolk, S Bartholomew | 1 of 8 | 3–1–26 | G | 24.60″ | 1998 | Eijsbouts |
| 40950 | Orford, Suffolk, S Bartholomew | 2 of 8 | 3–2–22 | F♯ | 25.20″ | 1998 | Eijsbouts |