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We’ve all heard of Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch (known locally as Llanfair Pwllfwyn or Llanfair P.G), the longest place name in Wales and the second longest in the world, only to be beaten by a town in New Zealand1 (source: World Atlas). But there are plenty of other places with long names hidden across Wales, and I can almost guarantee that you won’t be able to pronounce most of them.
Most of these ridiculously long names can be found in North and Mid-Wales with Powys being the county with the most places along the 30 longest.
Longest Place Names in Wales
Below is a table with the 30 longest places names in Wales according to the open-source data from Ordnance Survey.
|Place||County||Number of Letters|
|Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch||Village on Anglesey||58|
|Llanarmon Dyffryn Ceiriog||Village in Wrexham||25|
|Llanfihangel-geneu'r-glyn||Village in Ceredigion||25|
|Llansantffraed-Cwmdeuddwr||Village in Powys||25|
|Llanfihangel near Rogiet||Hamlet in Monmouthshire||24|
|Llanfihangel-yng-Ngwynfa||Village in Powys||24|
|Llansanffraid Glan Conwy||Village in Conwy||24|
|Llanfihangel Glyn Myfyr||Village in Conwy||23|
|Llanfihangel Tal-y-llyn||Village in Powys||23|
|Llanfihangel-Nant-Melan||Hamlet in Powys||23|
|Llanfihangel-y-Creuddyn||Village in Ceredigion||23|
|Llanrhaeadr-ym-Mochnant||Village in Powys||23|
|Llansantffraed-in-Elwel||Hamlet in Powys||23|
|Hen Bentref Llandegfan||Village on Anglesey||22|
|Llanbedr-Dyffryn-Clwyd||Village in Denbighshire||22|
|Llanfair Dyffryn Clwyd||Village in Denbighshire||22|
|Llanfihangel Nant Bran||Hamlet in Powys||22|
|Llanfihangel Rhydithon||Hamlet in Powys||22|
|Llanfihangel yn Nhowyn||Village on Anglesey||22|
|Llanfihangel-y-pennant||Hamlet in Gwynedd||22|
|Llangattock-Vibon-Avel||Hamlet in Monmouthshire||22|
|Llanvihangel Crucorney||Village in Monmouthshire||22|
|Llanfair-yng-Nghornwy||Village on Anglesey||21|
|Llansanffraid-ar-Elai||Hamlet in the Vale of Glamorgan||21|
|Eglwys Fair y Mynydd||Hamlet in the Vale of Glamorgan||20|
|Llanddewi Nant Hodni||Hamlet in Monmouthshire||20|
|Llanddewi Ystradenni||Village in Powys||20|
|Llanfihangel-ar-arth||Village in Carmarthenshire||20|
|Llangattock Nigh Usk||Village in Monmouthshire||20|
Longest One-Word Place Names in Wales
Here’s a second table I put together that only looks at the place names that are a single word.
|Place||Number of Letters||County|
|Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch||58||Isle of Anglesey|
|Llanfair-yng-Nghornwy||21||Isle of Anglesey|
|Llansanffraid-ar-Elai||21||The Vale of Glamorgan|
|Peterston-super-Ely||19||The Vale of Glamorgan|
Kieren is the founder and editor-in-chief of Wales Guidebook. Originally from rural Mid-Wales, he has lived all over the country from Cardiff to Wrexham. A true Welshman, Kieren created this site to share his passion for Wales and help others discover this beautiful country.