| # | Tower | No | Year | Materials | Maker | Trusses | Layout |
| 5401 | Llanblethian, The Vale of Glamorgan, South Glamorgan, Wales, S John Bapt | 1 | 1994 | Cast iron | Eayre & Smith | | |
| 5402 | Llanbrynmair, Powys, Wales, S Mary, Llan | 1 | c1799 | Oak | | | |
| 5403 | Llancarfan, The Vale of Glamorgan, South Glamorgan, Wales, S Cadoc | 1 | 1998 | Cast iron | Nicholson Engineering Ltd | 8.3.A.h | 6.1 |
| 5404 | Llandaff, Cardiff, South Glamorgan, Wales, Cath Ch of S Peter & S Paul | 9 | c1986 | Metal | Arthur C Berry | | |
| 5405 | Llandaff, Cardiff, South Glamorgan, Wales, Cath Ch of S Peter & S Paul | 2 | 1992 | Metal | Whitechapel Bell Foundry | | |
| 5406 | Llandaff, Cardiff, South Glamorgan, Wales, Cath Ch of S Peter & S Paul | 1 | 1992 | Metal | Whitechapel Bell Foundry | | |
| 5407 | Llandefaelog, Powys, Wales, S Maelog | 1 | c1718 | Timber | ? Henry Williams | | 6.1 |
| 5408 | Llandeilo, Carmarthenshire, Dyfed, Wales, S Teilo | 1 | 1887 | Cast iron | John Taylor & Co | 8.3.C.b | 6.4 |
| 5409 | Llandeilo Graban, Powys, Wales, S Teilo | 1 | 1908 | Oak | James Barwell | | |
| 5410 | Llandenny, Monmouthshire, Wales, S John | 1 | | Oak | | | |
| 5411 | Llandinam, Powys, Wales, S Llonio | 1 | | Oak | John Warner & Sons | 6.A | 6.1 |
| 5412 | Llandovery, Carmarthenshire, Dyfed, Wales, S Dingad, Llandingat | 1 | 1933 | Cast iron | John Taylor & Co (Bellfounders) Ltd | 8.3.A.h | 8.3 |
| 5413 | Llandrillo yn Edeyrnion, Denbighshire, Wales, S Trillo | 1 | 1877 | | John Taylor & Co | | |
| 5414 | Llandudno, Conwy, Wales, Holy Trinity | 1 | 1892 | Cast iron & timber | John Taylor & Co | 7.A | |
| 5415 | Llandybie, Carmarthenshire, Dyfed, Wales, S Tybie | 1 | 1892 | Timber | Local labour/guild/assn | 6.A | 4.1 |
| 5416 | Llandyssil, Powys, Wales, S Tyssil | 2 | | Timber | | | |
| 5417 | Llandyssil, Powys, Wales, S Tyssil | 1 | | Timber | | | |
| 5418 | Llandysul, Ceredigion, Dyfed, Wales, S Tysul | 1 | 1969 | Cast iron | John Taylor & Co | 8.3.A.h | 6.1 |
| 5419 | Llanelli, Carmarthenshire, Dyfed, Wales, S Elli | 1 | 1967 | Timber | Mears & Stainbank | | |
| 5420 | Llanelly, Monmouthshire, Wales, S Elli | 1 | 1908 | Composite | Charles Carr | | |
| 5421 | Llanfaes, Powys, Wales, S David | 2 | 1924 | Cast iron | John Taylor & Co | | 3 |
| 5422 | Llanfaes, Powys, Wales, S David | 1 | 1924 | Cast iron | John Taylor & Co | | 5.1 |
| 5423 | Llanfair Waterdine, Shropshire, S Mary | 1 | | Stone | | 9.A | 1 |
| 5424 | Llanfeugan, Powys, Wales, S Meugan | 1 | 1921 | Cast iron & steel | John Taylor & Co | | |
| 5425 | Llanfihangel Rhydithon, Powys, Wales, S Michael & All Angels | 1 | 1838 | Oak | | | 6 |
| 5426 | Llanfihangel Tal-y-llyn, Powys, Wales, S Michael | 1 | 1949 | Cast iron | John Taylor & Co | 8.3.A.h | 6 |
| 5427 | Llanfrechfa, Torfaen, Wales, All Saints | 2 | 1873 | Oak | William Blews and Sons | | |
| 5428 | Llanfrechfa, Torfaen, Wales, All Saints | 1 | 1937 | Metal | John Taylor & Co | | |
| 5429 | Llanfwrog, Denbighshire, Wales, S Mwrog & S Mary | 2 | | | | | |
| 5430 | Llanfwrog, Denbighshire, Wales, S Mwrog & S Mary | 1 | | Timber | | ~ 4.G | 3.1 |
| 5431 | Llanfyllin, Powys, Wales, S Myllin | 1 | c1714 | Oak | | | |
| 5432 | Llangadog, Carmarthenshire, Dyfed, Wales, S Cadoc | 1 | 1889 | Cast iron | John Taylor & Co | 8.3.C.b | 4.1 |
| 5433 | Llangarron, Herefordshire, S Deinst | 3 | | Steel | | 8.1.A.b | 1 |
| 5434 | Llangarron, Herefordshire, S Deinst | 2 | 1986 | Cast iron | John Taylor & Co | 8.3.D.a | 2.X1 |
| 5435 | Llangarron, Herefordshire, S Deinst | 1 | 1986 | Cast iron | John Taylor & Co | 8.3.D.a | 4.3 |
| 5436 | Llangasty Talyllyn, Powys, Wales, S Gastyn | 1 | c1845 | Softwood | | | |
| 5437 | Llangathen, Carmarthenshire, Dyfed, Wales, S Cathen | 1 | | Timber | | 6.A | 3.1 |
| 5438 | Llangattock, Powys, Wales, S Cattwg | 1 | 1886 | Cast iron | John Taylor & Co | 8.3.C.b | |
| 5439 | Llangattock Vibon Avel, Monmouthshire, Wales, S Cadoc | 1 | 1858 | Oak | John Warner & Sons | 6.A | 6.1 |
| 5440 | Llangefni, Ynys Mon, Gwynedd, Wales, S Cyngar | 1 | | Timber | | | 3.1 |
| 5441 | Llangollen, Denbighshire, Wales, S Collen | 1 | 1887 | Cast iron | John Taylor & Co | 8.3.C.b | |
| 5442 | Llangors, Powys, Wales, S Paulinus | 1 | c1721 | Timber | | | 6.9 |
| 5443 | Llangua, Monmouthshire, Wales, S James | 1 | c1955 | Timber | Locally manufactured | 1.E | 2.X1 |
| 5444 | Llangunllo, Powys, Wales, S Cynllo | 1 | 1870 | Oak | William Blews and Sons | | |
| 5445 | Llangybi, Monmouthshire, Wales, S Cybi | 2 | 1902 | Cast iron | John Taylor & Co | 8.3.C.e | 6.4 |
| 5446 | Llangybi, Monmouthshire, Wales, S Cybi | 1 | 1907 | Steel | John Taylor & Co | 8.1.A.a | 2 |
| 5447 | Llangyfelach, Swansea, West Glamorgan, Wales, S David & S Cyfelach | 1 | 1914 | Oak | ? Mears & Stainbank | 6.A | 6.1 |
| 5448 | Llanigon, Powys, Wales, S Eigon | 1 | c1699 | Timber | | | 3.1 |
| 5449 | Llanishen, Cardiff, South Glamorgan, Wales, S Isan | 2 | 1977 | Steel | Whitechapel Bell Foundry | 8.1.F.g | |
| 5450 | Llanishen, Cardiff, South Glamorgan, Wales, S Isan | 1 | 1977 | Steel | Whitechapel Bell Foundry | 8.1.A.b | 5.1 |