| # | Tower | No | Year | Materials | Maker | Trusses | Layout |
|---|
| 5501 | Lympstone, Devon, Nativity of BV | 1 | 1902 | Cast iron | Harry Stokes | 8.3.A.i | 6.5 |
| 5502 | Lyndhurst, Hampshire, S Michael & All Angels | 1 | c1948 | Cast iron | ? John Taylor & Co | | 8.3 |
| 5503 | Lyndon, Rutland, S Martin | 2 | 1889 | Cast iron & oak | John Taylor & Co | | |
| 5504 | Lyndon, Rutland, S Martin | 1 | 1889 | Cast iron & oak | John Taylor & Co | | |
| 5505 | Lyneham, Wiltshire, S Michael | 1 | 1925 | Cast iron | Mears & Stainbank | | |
| 5506 | Lyng, Norfolk, S Margaret | 1 | | Metal | | 8.1.B.a | 5.1 |
| 5507 | Lyng, Somerset, S Bartholomew | 1 | 1905 | Cast iron & oak | Thomas Doble | 7.A.a | 6 |
| 5508 | Lynsted, Kent, S Peter & S Paul | 1 | 1944 | | | | 6 |
| 5509 | Lynton, Devon, S Mary V | 1 | c1902 | Oak | ? Mears & Stainbank | 6.A | 6.1 |
| 5510 | Lyonshall, Herefordshire, S Michael & All Angels | 1 | 1924 | Metal | Mears & Stainbank | 8.1.B.b | 6.1 |
| 5511 | Lytchett Matravers, Dorset, S Mary V | 2 | 1931 | Cast iron | Mears & Stainbank | 8.3.A | |
| 5512 | Lytchett Matravers, Dorset, S Mary V | 1 | 1931 | Cast iron | Mears & Stainbank | 8.3.A.h | 5.1 |
| 5513 | Lytchett Minster, Dorset, dedication unknown | 1 | 1903 | Cast iron | Thomas Blackbourn | 8.3.A.g | 6.1 |
| 5514 | Lytham, Lancashire, S Cuthbert | 1 | 1957 | | Mears & Stainbank | | |
| 5515 | Lytham, Lancashire, S John Div | 2 | | Oak | | | |
| 5516 | Lytham, Lancashire, S John Div | 1 | | Oak | | | |
| 5517 | Lytham, Lancashire, S Peter (RC) | 1 | 1878 | Oak | Mears & Stainbank | 6.A | 6.1 |
| 5518 | Mabe, Cornwall, S Laudus | 1 | 1930 | Cast iron | John Taylor & Co | | 6 |
| 5519 | Mablethorpe, Lincolnshire, S Mary | 1 | 1907 | Cast iron | John Taylor & Co | | |
| 5520 | Macclesfield, Cheshire, Christ Church | 1 | 1947 | Cast iron | John Taylor & Co | | |
| 5521 | Macclesfield, Cheshire, S Michael & All Angels | 1 | 1923 | Cast iron | John Taylor & Co | | |
| 5522 | Machen, Newport, Wales, S Michael, Lower Machen | 1 | 1911 | Metal | Llewellins & James | | |
| 5523 | Machynlleth, Powys, Wales, S Peter | 1 | 1892 | Timber | James Barwell | 6.B | 6.1 ➔ 9.X |
| 5524 | Machynlleth, Powys, Wales, S Peter | 1.1 | 1911 | Cast iron & timber | James Barwell | 7.C.d | 3.X |
| 5525 | Mackworth, Derbyshire, All Saints | 1 | | Oak | | 5.A | |
| 5526 | Maddington, Wiltshire, S Mary | 1 | | Timber | | | 3.1 |
| 5527 | Madeley, Staffordshire, All Saints | 1 | 1931 | Cast iron | John Taylor & Co | 8.3.A | 6.1 |
| 5528 | Madingley, Cambridgeshire, S Mary Magd | 1 | 1927 | Cast iron | John Taylor & Co | 8.3.A.h | 4.2 |
| 5529 | Madley, Herefordshire, Nativity of BVM | 9 | | Oak | | | |
| 5530 | Madley, Herefordshire, Nativity of BVM | 1 | 1983 | Steel | John Taylor & Co | | |
| 5531 | Madresfield, Worcestershire, S Mary | 1 | 1867 | Timber | | | |
| 5532 | Madron, Cornwall, S Maddern | 1 | | Steel | | | |
| 5533 | Magor, Monmouthshire, Wales, S Mary V | 1 | 1979 | Cast iron | Arthur Fidler | 8.3.A.h | 6.1 |
| 5534 | Maiden Bradley, Wiltshire, All Saints | 1 | 1895 | Oak | | 6.A | 6.1 |
| 5535 | Maiden Newton, Dorset, S Mary | 1 | 1924 | Steel | Mears & Stainbank | | 6.1 |
| 5536 | Maidenhead, Berkshire, All Saints, Boyne Hill | 9 | | | | | |
| 5537 | Maidenhead, Berkshire, All Saints, Boyne Hill | 1 | 1922 | Cast iron | | | |
| 5538 | Maidenhead, Berkshire, Hospital Chapel of S Mark | 1 | | Stone | | 9.A | 1 |
| 5539 | Maids Moreton, Buckinghamshire, S Edmund | 1 | 1906 | Cast iron & steel | Alfred Bowell | 8.2.D.a & 8.2.D.b | 6.1 |
| 5540 | Maidstone, Kent, All Saints | 1 | 1957 | Cast iron | John Taylor & Co | 8.3.A.h | ~ 10.4 |
| 5541 | Maidstone, Kent, S Michael & All Angels | 8 | | | | | |
| 5542 | Maidstone, Kent, S Michael & All Angels | 1 | 1876 | Oak | John Warner & Sons | 6.A | 8.3 |
| 5543 | Maidwell, Northamptonshire, S Mary | 1 | 1933 | Cast iron | Gillett & Johnston | 8.3.A.m | 6.1 |
| 5544 | Maisemore, Gloucestershire, S Giles | 1 | 1884 | Oak | John Warner & Sons | 6.A | 6.4 |
| 5545 | Maker, Cornwall, S Mary & S Julian | 1 | 1907 | Timber | William Aggett and Sons | 6.A | 6.5 R |
| 5546 | Makhanda, Eastern Cape, South Africa, Cath Ch of S Michael & S George | 1 | 1993 | Steel | Locally manufactured | | |
| 5547 | Makhanda, Eastern Cape, South Africa, Holy Cross Monastery, Hillandale | 1 | 1999 | Steel | Locally manufactured | | |
| 5548 | Malborough, Devon, All Saints | 2 | 1973 | Cast iron | John Taylor & Co | 8.3.D.a | |
| 5549 | Malborough, Devon, All Saints | 1 | 1973 | Cast iron | John Taylor & Co | 8.3.D.a | |
| 5550 | Maldon, Essex, All Saints | 9 | | | | | |