| # | Tower | No | Year | Materials | Maker | Trusses | Layout |
|---|
| 6301 | Norwich, Norfolk, S Peter Hungate | 1 | c1500 | Timber | | 5.D & 6.A | 2.X1 |
| 6302 | Norwich, Norfolk, S Peter Hungate | 1A | c1888 | Timber | | | 1 |
| 6303 | Norwich, Norfolk, S Peter Mancroft | 2 | 1997 | Steel | Whitechapel Bell Foundry | 8.1.B.a | 1 |
| 6304 | Norwich, Norfolk, S Peter Mancroft | 1 | 1925 | Cast iron | John Taylor & Co | 8.3.C.e | 13.X |
| 6305 | Norwich, Norfolk, S Stephen | 1 | c1606 | Oak | Thomas Dymee (or Dymond) | | |
| 6306 | Norwood Green, Greater London, S Mary V | 1 | 1897 | Wrought iron | Webb and Bennett | | |
| 6307 | Notgrove, Gloucestershire, S Bartholomew | 2 | c1907 | Steel | Henry Bond | 8.1.A | 1 |
| 6308 | Notgrove, Gloucestershire, S Bartholomew | 1 | c1907 | Steel | Henry Bond | 8.1.A | 2.X1 |
| 6309 | Nottingham, Nottinghamshire, All Saints | 1 | 1999 | Steel | Hayward Mills Associates | 8.1.B.a | 10.3 |
| 6310 | Nottingham, Nottinghamshire, S Mary V | 1 | 1935 | Cast iron | Gillett & Johnston | 8.3.A.m | 8.X D ➔ 12.X D |
| 6311 | Nottingham, Nottinghamshire, S Mary V | 1.1 | 1981 | Cast iron | Eayre & Smith | 8.3.A.m | 2.X1 D |
| 6312 | Nottingham, Nottinghamshire, S Mary V | 1.2 | 1981 | Cast iron | Eayre & Smith | 8.3.A.m | 2.X1 D |
| 6313 | Nottingham, Nottinghamshire, S Peter | 2A | 1965 | Cast iron | John Taylor & Co | 8.3.D.a | 3.3 |
| 6314 | Nottingham, Nottinghamshire, S Peter | 2B | 1994 | Cast iron | Hayward Mills Associates | 8.3.A.h | 1 |
| 6315 | Nottingham, Nottinghamshire, S Peter | 1 | 1965 | Cast iron | John Taylor & Co | 8.3.D.a | 9 |
| 6316 | Nowton, Suffolk, S Peter | 2 | 1829 | Oak | | 6.A | 2.X1 |
| 6317 | Nowton, Suffolk, S Peter | 1 | 1829 | Oak | | 6.A | 4.2 |
| 6318 | Nun Monkton, North Yorkshire, S Mary | 1 | | Timber | | 6.A | 3.1 |
| 6319 | Nunburnholme, East Riding of Yorkshire, S James | 1 | 1902 | Cast iron | John Taylor & Co | 8.3.C | 6.4 |
| 6320 | Nuneaton, Warwickshire, All Saints, Chilvers Coton | 2 | 1947 | Cast iron | John Taylor & Co | 8.3.A.h | |
| 6321 | Nuneaton, Warwickshire, All Saints, Chilvers Coton | 1 | 1907 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 6322 | Nuneaton, Warwickshire, S Nicolas | 1 | 1809 | Timber | John Over | | 8.3 |
| 6323 | Nuneaton, Warwickshire, S Nicolas | 1.1 | 1908 | Cast iron | John Taylor & Co | 8.3.C.e | 8.3 |
| 6324 | Nunney, Somerset, All Saints | 1 | 1920 | Steel | John Warner & Sons | 8.1.E.c | 8.X11 |
| 6325 | Nunnington, North Yorkshire, All Saints | 1 | 1884 | Timber | Thomas Mallaby | 6.A | 3.X |
| 6326 | Nunton, Wiltshire, S Andrew | 1 | c1800 | Oak | | | |
| 6327 | Nursling, Hampshire, S Boniface | 1 | | Timber | | 6.K | 1 |
| 6328 | Nutfield, Surrey, S Peter & S Paul | 1 | | Timber | | 6.A | 6.1 |
| 6329 | Nuthall, Nottinghamshire, S Patrick | 1 | 1987 | Cast iron | Fred Pembleton | 8.3.A.h | 8.3 |
| 6330 | Nynehead, Somerset, All Saints | 1 | c1902 | Oak | ? John Sully | | |
| 6331 | Oakdale, Dorset, S George | 1 | 1989 | Steel | Whitechapel Bell Foundry | 8.1.B.c | 6.X |
| 6332 | Oake, Somerset, S Bartholomew | 1 | c1911 | Oak | ? John Warner & Sons | | 5 |
| 6333 | Oakford, Devon, S Peter | 1 | | Oak | | 6.A | 8.3 |
| 6334 | Oakham, Rutland, All Saints | 9 | | | | | |
| 6335 | Oakham, Rutland, All Saints | 1 | 1911 | Cast iron | Gillett & Johnston | 8.3.C.e | 8.3 |
| 6336 | Oakhanger, Hampshire, S Mary Magd | 1 | | Brick | | 9.A | 1 |
| 6337 | Oakington, Cambridgeshire, S Andrew | 1 | 1977 | Cast iron | John Taylor & Co | 8.3.A.h | 6.1 |
| 6338 | Oakley, Bedfordshire, S Mary | 1 | 1900 | Cast iron | John Taylor & Co | 8.3.C.e | 5.4 ➔ 6.4 |
| 6339 | Oakley, Bedfordshire, S Mary | 1.1 | 1978 | Steel | Whitechapel Bell Foundry | 8.1.F.e | 1 |
| 6340 | Oakley, Buckinghamshire, S Mary | 9 | | Timber | | 2.A | |
| 6341 | Oakley, Buckinghamshire, S Mary | 1 | c1876 | Timber | ? Henry Bond | 6.A | 3.3 |
| 6342 | Oakley, Suffolk, S Nicholas | 1 | 1958 | Cast iron | John Taylor & Co | 8.3.C.e | 6.4 |
| 6343 | Oaks in Charnwood, Leicestershire, S James Greater | 2 | 1971 | Steel | John Taylor & Co | 8.1.A.a | |
| 6344 | Oaks in Charnwood, Leicestershire, S James Greater | 1 | 1883 | Oak | John Taylor & Co | 6.A | 6.4 |
| 6345 | Oaksey, Wiltshire, All Saints | 1 | 1960 | Cast iron | John Taylor & Co | 8.3.A.h | 6.1 |
| 6346 | Oare, Somerset, Blessed Virgin Mary | 8 | | | | | |
| 6347 | Oare, Somerset, Blessed Virgin Mary | 1 | 1873 | Oak | | 6.A | 3.3 |
| 6348 | Occold, Suffolk, S Michael | 1 | c1699 | Timber | | 5.A | 5.7 R |
| 6349 | Ockbrook, Derbyshire, All Saints | 1 | 1890 | Cast iron | John Taylor & Co | | 3 ➔ 6 |
| 6350 | Ockbrook, Derbyshire, All Saints | 1.1 | 1926 | Cast iron | Mears & Stainbank | | 3.1 |