| # | Tower | No | Year | Materials | Maker | Trusses | Layout |
|---|
| 6751 | Otham, Kent, S Nicholas | 1.2 | 2012 | Steel | John Taylor & Co | | 1 |
| 6752 | Othery, Somerset, S Michael | 1 | 1860 | Oak | Henry Boswell | | |
| 6753 | Otley, Suffolk, S Mary | 1 | 1933 | Timber | Local firm | 6.A | 6.5 R |
| 6754 | Otley, West Yorkshire, All Saints | 1 | 1922 | Cast iron | Gillett & Johnston | 8.3.C.e | 8.3 |
| 6755 | Otterford, Somerset, S Leonard | 1 | 1904 | Cast iron & timber | Thomas Doble | 7.A.a | 6.X |
| 6756 | Otterham, Cornwall, S Denis | 1 | 1953 | Cast iron | John Taylor & Co | 8.3.A.h | 6.X |
| 6757 | Otterhampton, Somerset, All Saints | 1 | † | Oak | | | |
| 6758 | Ottershaw, Surrey, Christ Church | 2 | 1885 | Cast iron | John Taylor & Co | 8.3.C.b | 2.X1 |
| 6759 | Ottershaw, Surrey, Christ Church | 1 | 1885 | Cast iron | John Taylor & Co | 8.3.C.b | 4.2 |
| 6760 | Otterton, Devon, S Michael | 2 | 1890 | Oak | Harry Stokes | 6.A | |
| 6761 | Otterton, Devon, S Michael | 1 | 1865 | Oak | Thomas I Hooper | 6.D | 5.12 |
| 6762 | Ottery St Mary, Devon, S Mary V | 1 | 1949 | Cast iron | John Taylor & Co | 8.3.A.h | 8.3 |
| 6763 | Ottringham, East Riding of Yorkshire, S Wilfrid | 1 | | Timber | | | |
| 6764 | Oulton, Suffolk, S Michael | 1 | 1980 | Cast iron | John Taylor & Co | 8.3.A.h | 6.1 |
| 6765 | Oundle, Northamptonshire, S Peter | 1 | 1869 | Timber | | | |
| 6766 | Ousden, Suffolk, S Peter | 1 | 1758 | Oak | E Willis | 5.H | 5.12 R |
| 6767 | Outwell, Norfolk, S Clement | 1 | | Oak | | 6.L | 6.4 |
| 6768 | Outwood, Surrey, S John Bapt | 1 | 1875 | Pine | John Warner & Sons | 6.A | 4.3 |
| 6769 | Over, Cambridgeshire, S Mary | 9 | | Stone | | ~ 9.A | 1 |
| 6770 | Over, Cambridgeshire, S Mary | 1 | 1931 | Cast iron | Mears & Stainbank | 8.3.A.h | 8.3 |
| 6771 | Over, Cheshire, S Chad | 1 | 1938 | Teak | John Taylor & Co | 6.A | 8.3 |
| 6772 | Over Compton, Dorset, S Michael | 1 | c1821 | Timber | (unidentified) | | |
| 6773 | Over Kellet, Lancashire, S Cuthbert | 2 | 2023 | Cast iron & steel | John Taylor & Co | 8.1.B.a & 8.3.A.h | 5.12 R |
| 6774 | Over Kellet, Lancashire, S Cuthbert | 1 | 2023 | Cast iron | John Taylor & Co | 8.3.A.h | 3.X |
| 6775 | Over Kellet, Lancashire, S Cuthbert | 1A | 2023 | Steel | John Taylor & Co | 8.1.E | 1 |
| 6776 | Over Stowey, Somerset, S Peter & S Paul | 1 | 1939 | Teak | John Taylor & Co | 6.A | 6.1 |
| 6777 | Over Whitacre, Warwickshire, S Leonard | 1 | 1933 | Cast iron | John Taylor & Co | 8.3.A.h | 2.X1 |
| 6778 | Over Winchendon, Buckinghamshire, S Mary Magd | 9 | | Timber | | 1.A & 1.D | |
| 6779 | Over Winchendon, Buckinghamshire, S Mary Magd | 1 | 1675 | Timber | | 6.A | 3.1 |
| 6780 | Overbury, Worcestershire, S Faith | 1 | 1880 | Timber | Frederick White | 6.A | 5.1 ➔ 6.X |
| 6781 | Overbury, Worcestershire, S Faith | 1.1 | 1903 | Oak | John Taylor & Co | 6.A | 1 |
| 6782 | Overseal, Derbyshire, S Matthew | 2 | 1919 | Cast iron | John Taylor & Co | | |
| 6783 | Overseal, Derbyshire, S Matthew | 1 | 1919 | Cast iron | John Taylor & Co | | |
| 6784 | Overstone, Northamptonshire, S Nicholas | 1 | 1903 | Timber | John Taylor & Co | 6.A | 3.1 |
| 6785 | Overton, Hampshire, S Mary | 1 | 1908 | Steel | Mears & Stainbank | 8.1.B.a | 6.1 ➔ 8.3 |
| 6786 | Overton, Hampshire, S Mary | 1.1 | 1945 | Steel | Mears & Stainbank | 8.1.B.a | 2.X2 |
| 6787 | Overton on Dee, Wrexham, Clwyd, Wales, S Mary V | 1 | 1826 | Oak | James Jacques | 6.A, 6.D & 6.J | 6.X |
| 6788 | Oving, Buckinghamshire, All Saints | 9 | | Timber | | 2 | 1 |
| 6789 | Oving, Buckinghamshire, All Saints | 1 | 1887 | Oak | John Warner & Sons | 6.A | 3.1 |
| 6790 | Ovingham, Northumberland, S Mary V | 1 | 2011 | Steel | Local labour/guild/assn | | 8.3 |
| 6791 | Owlsmoor, Berkshire, S George | 2 | | Steel | | 8.1.A | |
| 6792 | Owlsmoor, Berkshire, S George | 1 | | Steel | | 8.1.A | |
| 6793 | Owlswick, Buckinghamshire, Chapel of S Peter | 1 | | | | ~ 9.E | |
| 6794 | Owmby, Lincolnshire, S Peter & S Paul | 1 | | Timber | | ~ 3.B | |
| 6795 | Owslebury, Hampshire, S Andrew | 1 | 1905 | Cast iron | Mears & Stainbank | 8.3.A.e | 6.1 |
| 6796 | Owston, Leicestershire, S Andrew | 1 | 1860 | Timber | John Taylor & Co | 6.A | |
| 6797 | Owston Ferry, Lincolnshire, S Martin | 1 | 1955 | | Mears & Stainbank | | 8 |
| 6798 | Oxcombe, Lincolnshire, All Saints | 1 | 1925 | Timber | | | |
| 6799 | Oxenhall, Gloucestershire, S Anne | 2 | 1912 | Cast iron | Llewellins & James | 8.3.A.h | 1 |
| 6800 | Oxenhall, Gloucestershire, S Anne | 1 | 1912 | Cast iron | Llewellins & James | 8.3.A.h | 3.3 |