Welsh place names in other countries is a list of placenames in countries outside of Wales which are named after places in Wales, or derived from the Welsh language, or are known to be named after a Welsh person.
Puerto Madryn - named after the Welsh estate of Sir Love Jones-Parry.
Trelew - named after Welsh settler Lewis Jones.
Trevelin - from Trefelin, the Welsh for 'Mill Town'.
New South Wales - Captain James Cook originally called it 'New Wales', later adding the 'South'.Aberdare
Aberglasslyn - likely corruption of Aberglaslyn
Allynbrook - from River Alyn
Bangor - named after the birthplace of the landowner.
Cardiff - name suggested by a Welsh settler in 1889.
Llanarth - suburb of Bathurst, from Llanarth
Llangothlin - anglicisation of Llangollen
Swansea - a coal mining community.
Swansea - settled by people from Pembrokeshire, Wales
Anglesea - corruption of Anglesey
Llanelly - either from Llanelly or Llanelli
Carnarvon - named after Henry Herbert, 4th Earl of Carnarvon; anglicisation of Caernarfon
Cardiff - a hamlet near Alberta's first coal mine.
Cardiff - a small mining community.
Pontypool - unincorporated village, used as the setting for a movie of the same name
Herefordshire: Numerous villages, parishes and farms in the Archenfield region adjacent to Wales, including:
Shropshire: Numerous villages, parishes and farms, notably in the Oswestry area adjacent to Wales, including:
Welsh place names in other countries Wikipedia
Welsh settlers arrived on the island, most notably the infamous Welsh governor, Henry Morgan, and influenced placenames.Bangor Ridge (Portland)
Llandovery (St Ann)
Llandewey (St Thomas)
Western Cwm - a glacial valley on the face of Mount Everest (cwm is Welsh for 'valley')
Swansea - a former copper mining town.
Swansea - a former mining town.
Cardiff - formerly a coal mining town
Powell Observatory in Wea Township, Miami County
Owensboro - named for Abraham Owen.
Cardiff - formerly a slate mining town
Howell Township, Livingston
Powell, Cass County
Powell Gardens in Kingsville
Powell Hall, St. Louis
Powell, McDonald County
Howell Township, Monmouth County
Pennsylvania See Welsh tract for more information
Bangor - the first Chief Burgess an emigrant from Wales.
Bryn Mawr - founded by Welsh Quakers.
Upper Gwynedd and Lower Gwynedd Townships.
Nanty Glo - from the Welsh nant y glo, stream of coal.
Powell, Edmunds County
Powell, Haakon County
Cardiff - an iron and coal mining town
Lake Powell on the border between San Juan & Kane counties