|
# | Tower | Bell | Weight | Note | Diameter | Cast | Founder |
| 30101 | Otham, Kent, S Nicholas | 4 of 6 | 5–0–19 | C♯ | 30.23″ | 1755 | Lester & Pack |
| 30102 | Otham, Kent, S Nicholas | 5 of 6 | 6–1–7 | B | 32.75″ | c1400† | William Dawe |
| 30103 | Otham, Kent, S Nicholas | 6 of 6 | 7–1–3 | A | 35.23″ | 1906 | Mears & Stainbank |
| 30104 | Othery, Somerset, S Michael | 1 of 5 | 6–2–17 | B | 31.63″ | 1692 | Thomas Purdue |
| 30105 | Othery, Somerset, S Michael | 2 of 5 | 7–1–16 | A | 34.25″ | c1650† | Robert II Austen |
| 30106 | Othery, Somerset, S Michael | 3 of 5 | 9 cwt | G♯ | 37.25″ | 1729 | Thomas II Wroth |
| 30107 | Othery, Somerset, S Michael | 4 of 5 | 12 cwt | F♯ | 41.75″ | 1811 | Thomas (Castleman) III Bilbie |
| 30108 | Othery, Somerset, S Michael | 5 of 5 | 18–1–6 | E | 46.50″ | 1785 | William Bilbie |
| 30109 | Otley, Suffolk, S Mary | 1 of 6 | 4–0–11 | E | 27.75″ | 1878 | John Warner & Sons |
| 30110 | Otley, Suffolk, S Mary | 2 of 6 | 4–3–20 | D | 28.50″ | 1933 | John Taylor & Co |
| 30111 | Otley, Suffolk, S Mary | 3 of 6 | 5–3–2 | C | 31.13″ | c1550† | Bury St Edmunds foundry |
| 30112 | Otley, Suffolk, S Mary | 4 of 6 | 6–1–15 | B | 32.75″ | c1500† | Brasyers of Norwich (generic) |
| 30113 | Otley, Suffolk, S Mary | 5 of 6 | 8–0–13 | A | 35.88″ | c1500† | Brasyers of Norwich (generic) |
| 30114 | Otley, Suffolk, S Mary | 6 of 6 | 9–3–18 | G | 39.50″ | 1576† | Stephen II Tonne |
| 30115 | Otley, West Yorkshire, All Saints | 1 of 8 | 4–0–12 | F | 26.00″ | 1922 | Gillett & Johnston |
| 30116 | Otley, West Yorkshire, All Saints | 2 of 8 | 4–1–12 | E | 27.00″ | 1922 | Gillett & Johnston |
| 30117 | Otley, West Yorkshire, All Saints | 3 of 8 | 5–0–0 | D | 29.00″ | 1922 | Gillett & Johnston |
| 30118 | Otley, West Yorkshire, All Saints | 4 of 8 | 5–3–23 | C | 31.25″ | 1922 | Gillett & Johnston |
| 30119 | Otley, West Yorkshire, All Saints | 5 of 8 | 7–1–2 | B♭ | 34.00″ | 1922 | Gillett & Johnston |
| 30120 | Otley, West Yorkshire, All Saints | 6 of 8 | 8–0–19 | A | 35.88″ | 1922 | Gillett & Johnston |
| 30121 | Otley, West Yorkshire, All Saints | 7 of 8 | 11–1–13 | G | 40.25″ | 1922 | Gillett & Johnston |
| 30122 | Otley, West Yorkshire, All Saints | 8 of 8 | 16–0–20 | F | 44.88″ | 1922 | Gillett & Johnston |
| 30123 | Otterford, Somerset, S Leonard | 1 of 4 | 5 cwt | C♯ | 31.00″ | 1676 | Thomas Purdue |
| 30124 | Otterford, Somerset, S Leonard | 2 of 4 | 6¾ cwt | B | 33.38″ | c1499† | Exeter foundry |
| 30125 | Otterford, Somerset, S Leonard | 3 of 4 | 8 cwt | A | 36.50″ | c1499† | Exeter foundry |
| 30126 | Otterford, Somerset, S Leonard | 4 of 4 | 11 cwt | G | 40.25″ | c1499† | Exeter foundry |
| 30127 | Otterham, Cornwall, S Denis | 1 of 6 | 2–3–14 | F♯ | 24.00″ | 1894 | John Warner & Sons |
| 30128 | Otterham, Cornwall, S Denis | 2 of 6 | 3–2–7 | E | 25.88″ | 1894 | John Warner & Sons |
| 30129 | Otterham, Cornwall, S Denis | 3 of 6 | 3–2–7 | D | 27.25″ | c1499† | Exeter foundry |
| 30130 | Otterham, Cornwall, S Denis | 4 of 6 | 4–2–2 | C♯ | 29.75″ | c1699† | (unidentified) |
| 30131 | Otterham, Cornwall, S Denis | 5 of 6 | 6–0–11 | B | 32.63″ | c1499† | Exeter foundry |
| 30132 | Otterham, Cornwall, S Denis | 6 of 6 | 7–0–0 | A | 35.00″ | 1892 | Mears & Stainbank |
| 30133 | Otterhampton, Somerset, All Saints | 1 of 4 | 4–0–19 | D | 27.75″ | c1350† | Bristol foundry |
| 30134 | Otterhampton, Somerset, All Saints | 2 of 4 | 5–1–23 | C♯ | 29.00″ | 1647 | William III Purdue |
| 30135 | Otterhampton, Somerset, All Saints | 3 of 4 | 4–3–25 | B | 31.00″ | 1737 | Thomas II Wroth |
| 30136 | Otterhampton, Somerset, All Saints | 4 of 4 | 7–3–2 | A | 35.13″ | 1926 | Mears & Stainbank |
| 30137 | Ottershaw, Surrey, Christ Church | 1 of 6 | 5–2–14 | D | 29.50″ | 1885 | John Taylor & Co |
| 30138 | Ottershaw, Surrey, Christ Church | 2 of 6 | 6–2–14 | C | 31.25″ | 1885 | John Taylor & Co |
| 30139 | Ottershaw, Surrey, Christ Church | 3 of 6 | 7–3–7 | B♭ | 33.88″ | 1885 | John Taylor & Co |
| 30140 | Ottershaw, Surrey, Christ Church | 4 of 6 | 8–2–14 | A | 35.63″ | 1885 | John Taylor & Co |
| 30141 | Ottershaw, Surrey, Christ Church | 5 of 6 | 10–3–18 | G | 39.25″ | 1885 | John Taylor & Co |
| 30142 | Ottershaw, Surrey, Christ Church | 6 of 6 | 16–1–14 | F | 44.50″ | 1885 | John Taylor & Co |
| 30143 | Otterton, Devon, S Michael | 1 of 6 | 5–0–6 | D♯ | 28.00″ | 1890 | John Taylor & Co |
| 30144 | Otterton, Devon, S Michael | 2 of 6 | 5–0–22 | C♯ | 30.00″ | 1824 | William Pannell |
| 30145 | Otterton, Devon, S Michael | 3 of 6 | | B | 31.00″ | 1777 | Thomas II Bilbie |
| 30146 | Otterton, Devon, S Michael | 4 of 6 | | A♯ | 32.50″ | 1777 | Thomas II Bilbie |
| 30147 | Otterton, Devon, S Michael | 5 of 6 | | G♯ | 35.50″ | 1777 | Thomas II Bilbie |
| 30148 | Otterton, Devon, S Michael | 6 of 6 | 12–0–4 | F♯ | 41.50″ | 1846 | Charles & George Mears |
| 30149 | Ottery St Mary, Devon, S Mary V | 1 of 8 | 4–2–20 | E | 27.63″ | 1949 | John Taylor & Co |
| 30150 | Ottery St Mary, Devon, S Mary V | 2 of 8 | 5–0–2 | D♯ | 28.38″ | 1949 | John Taylor & Co |