| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Llanfaches | city | Newport | United Kingdom | 51.62 | -2.82 | 232 | 19218 |
| Llanfachraeth | city | Sir Ynys Mon | United Kingdom | 53.32 | -4.53 | 59 | 2667 |
| Llanfachreth | city | Gwynedd | United Kingdom | 52.78 | -3.85 | 830 | 3129 |
| Llanfachreth | city | Sir Ynys Mon | United Kingdom | 53.32 | -4.53 | 59 | 2667 |
| Llanfaelog | city | Sir Ynys Mon | United Kingdom | 53.23 | -4.47 | 59 | 2589 |
| Llanfaelrhys | city | Gwynedd | United Kingdom | 52.80 | -4.65 | 0 | 1449 |
| Llanfaenor | city | Sir Fynwy | United Kingdom | 51.85 | -2.83 | 252 | 2770 |
| Llanfaes | city | Sir Ynys Mon | United Kingdom | 53.27 | -4.10 | 0 | 8369 |
| Llanfaethlu | city | Sir Ynys Mon | United Kingdom | 53.35 | -4.53 | 164 | 2527 |
| Llanfaethly | city | Sir Ynys Mon | United Kingdom | 53.35 | -4.53 | 164 | 2527 |
| Llanfair | city | Sir Ddinbych | United Kingdom | 53.08 | -3.30 | 331 | 8581 |
| Llanfair | city | Gwynedd | United Kingdom | 52.83 | -4.12 | 193 | 2075 |
| Llanfair | city | Pennsylvania | United States | 40.29 | -78.72 | 2509 | |
| Llanfair Caereinion | city | Powys | United Kingdom | 52.67 | -3.32 | 830 | 1490 |
| Llanfair Clydogau | city | Ceredigion | United Kingdom | 52.13 | -4.02 | 830 | 2061 |
| Llanfair P.G. | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfair Pwllgwyngyll | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfair Talhaiarn | city | Conwy | United Kingdom | 53.22 | -3.60 | 830 | 6075 |
| Llanfair Waterdine | city | Shropshire | United Kingdom | 52.38 | -3.12 | 885 | 2324 |
| Llanfair ym Muallt | city | Powys | United Kingdom | 52.17 | -3.42 | 830 | 1490 |
| Llanfair-Dyffryn-Clwyd | city | Sir Ddinbych | United Kingdom | 53.08 | -3.30 | 331 | 8581 |
| Llanfair-ar-y-bryn | city | Carmarthenshire | United Kingdom | 52.03 | -3.73 | 830 | 2 |
| Llanfair-ym-Muallt | city | Powys | United Kingdom | 52.17 | -3.42 | 830 | 1490 |
| Llanfairfechan | city | Conwy | United Kingdom | 53.25 | -3.98 | 830 | 13684 |
| Llanfairpwllgwyngyll | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfairpwllgwyngyllgogerychwyrndrobwyll-llantysiliogogogoch | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch | city | Sir Ynys Mon | United Kingdom | 53.22 | -4.20 | 32 | 13548 |
| Llanfallteg | city | Carmarthenshire | United Kingdom | 51.84 | -4.69 | 216 | 2190 |
| Llanfallteg East | city | Carmarthenshire | United Kingdom | 51.84 | -4.69 | 216 | 2190 |
| Llanfallteg West | city | Sir Benfro | United Kingdom | 51.83 | -4.70 | 249 | 2706 |
| Llanfalteg | city | Carmarthenshire | United Kingdom | 51.84 | -4.69 | 216 | 2190 |
| Llanfaredd | city | Powys | United Kingdom | 52.15 | -3.37 | 830 | 1490 |
| Llanfechain | city | Powys | United Kingdom | 52.77 | -3.20 | 282 | 1729 |
| Llanfechan | city | Powys | United Kingdom | 52.77 | -3.20 | 282 | 1729 |
| Llanfechell | city | Sir Ynys Mon | United Kingdom | 53.38 | -4.47 | 177 | 2533 |
| Llanferres | city | Sir Ddinbych | United Kingdom | 53.13 | -3.22 | 935 | 11524 |
| Llanfflewyn | city | Sir Ynys Mon | United Kingdom | 53.37 | -4.48 | 193 | 2668 |
| Llanffynhonwen | city | Shropshire | United Kingdom | 52.58 | -3.08 | 830 | 2483 |
| Llanfihangel | city | Powys | United Kingdom | 52.73 | -3.37 | 830 | 1490 |
| Llanfihangel | city | Sir Ynys Mon | United Kingdom | 53.30 | -4.13 | 275 | 6976 |
| Llanfihangel | city | Powys | United Kingdom | 52.22 | -3.20 | 1115 | 1490 |
| Llanfihangel | city | Ceredigion | United Kingdom | 52.47 | -4.02 | 272 | 6642 |
| Llanfihangel | city | Gwynedd | United Kingdom | 52.88 | -4.52 | 265 | 3065 |
| Llanfihangel Abergwessin | city | Powys | United Kingdom | 52.15 | -3.68 | 990 | 1490 |
| Llanfihangel Abergwesyn | city | Powys | United Kingdom | 52.15 | -3.68 | 990 | 1490 |
| Llanfihangel Bachellaeth | city | Gwynedd | United Kingdom | 52.88 | -4.52 | 265 | 3065 |
| Llanfihangel Crucornau | city | Sir Fynwy | United Kingdom | 51.88 | -2.98 | 830 | 2881 |
| Llanfihangel Cwm-du | city | Powys | United Kingdom | 51.90 | -3.18 | 889 | 1490 |
| Llanfihangel Lledrod | city | Ceredigion | United Kingdom | 52.30 | -3.98 | 830 | 2831 |
| Llanfihangel Rhydithon | city | Powys | United Kingdom | 52.28 | -3.25 | 1013 | 1490 |
| Llanfihangel Rogiet | city | Sir Fynwy | United Kingdom | 51.58 | -2.81 | 13 | 22446 |
| Llanfihangel-Bryn-Pabuan | city | Powys | United Kingdom | 52.20 | -3.50 | 830 | 1490 |
| Llanfihangel-Glyn-Myfyr | city | Conwy | United Kingdom | 53.02 | -3.50 | 921 | 2370 |
| Llanfihangel-Nant-Bran | city | Powys | United Kingdom | 51.98 | -3.55 | 954 | 1490 |
| Llanfihangel-Rhos-y-corn | city | Carmarthenshire | United Kingdom | 51.98 | -4.12 | 830 | 0 |
| Llanfihangel-Ystrad | city | Ceredigion | United Kingdom | 52.18 | -4.17 | 416 | 2831 |
| Llanfihangel-ar-Arth | city | Carmarthenshire | United Kingdom | 52.02 | -4.25 | 830 | 682 |
| Llanfihangel-geneu'r-glyn | city | Ceredigion | United Kingdom | 52.47 | -4.02 | 272 | 6642 |
| Llanfihangel-geneu’r-glyn | city | Ceredigion | United Kingdom | 52.47 | -4.02 | 272 | 6642 |
| Llanfihangel-nant-Melan | city | Powys | United Kingdom | 52.22 | -3.20 | 1115 | 1490 |
| Llanfihangel-ty'n-Sylwy | city | Sir Ynys Mon | United Kingdom | 53.30 | -4.13 | 275 | 6976 |
| Llanfihangel-ty’n-Sylwy | city | Sir Ynys Mon | United Kingdom | 53.30 | -4.13 | 275 | 6976 |
| Llanfihangel-uwch-Gwili | city | Carmarthenshire | United Kingdom | 51.88 | -4.20 | 193 | 1075 |
| Llanfihangel-y-Creiddyn | city | Ceredigion | United Kingdom | 52.37 | -3.95 | 830 | 2831 |
| Llanfihangel-y-Pennant | city | Gwynedd | United Kingdom | 52.67 | -3.97 | 830 | 3129 |
| Llanfihangel-y-creuddyn | city | Ceredigion | United Kingdom | 52.37 | -3.95 | 830 | 2831 |
| Llanfihangel-y-pennant | city | Gwynedd | United Kingdom | 52.97 | -4.20 | 830 | 3115 |
| Llanfihangel-yng-Ngheri | city | Powys | United Kingdom | 52.50 | -3.27 | 830 | 1490 |
| Llanfihangel-yng-Ngwynfa | city | Powys | United Kingdom | 52.73 | -3.37 | 830 | 1490 |
| Llanfor | city | Gwynedd | United Kingdom | 52.92 | -3.58 | 830 | 3028 |
| Llanfrothen | city | Gwynedd | United Kingdom | 52.95 | -4.05 | 239 | 3129 |
| Llanfrynach | city | Powys | United Kingdom | 51.92 | -3.35 | 830 | 1490 |
| Llanfyllin | city | Powys | United Kingdom | 52.75 | -3.25 | 830 | 1490 |
| Llanfyndd | city | Carmarthenshire | United Kingdom | 51.93 | -4.10 | 830 | 0 |
| Llanfynydd | city | Carmarthenshire | United Kingdom | 51.93 | -4.10 | 830 | 0 |
| Llanfyrnach | city | Sir Benfro | United Kingdom | 51.95 | -4.58 | 830 | 3123 |