Cwmdauddwr

{{Short description|Village in Powys, Wales}}

{{Use dmy dates|date=October 2019}}

{{Infobox UK place

| country = Wales

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| static_image_caption = Cwmdauddwr

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| community_wales = Rhayader

| unitary_wales = Powys

| lieutenancy_wales = Powys

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| coordinates = {{coord|52.2984|-3.5167|display=inline,title}}

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Cwmdauddwr (rarely referred to by its correct full name of Llansanffraid Cwmteuddwr{{cite web|title=Llansanffraid Cwmteuddwr Radnorshire|url=http://www.visionofbritain.org.uk/place/6617|website=Vision of Britain}}) is a village in Powys, Wales. It is contiguous with the town of Rhayader on the opposite side of the River Wye. The village is located on the B4518 road linking Rhayader with the Elan Valley Reservoirs.

File:Map of the Cantrefs and Commotes of Rhwng Gwy a Hafren.svg

The parish of Cwmdauddwr corresponds approximately to the medieval commote of {{langnf|cy|Cwmwd Deuddwr|Commote of the Confluence|paren=left}}; {{literal|commote of the two waters}}). It was so called because of its location where the rivers Elan and Wye join.{{cite book|last1=Morgan|first1=Thomas|title=HANDBOOK OF THE ORIGIN OF PLACE-NAMES IN WALES AND MONMOUTHSHIRE|date=1887|publisher=H V Southey|page=96|url=http://llennatur.com/files/u1/on__Place-names_ThosMorgan_Pr_HWSouthey_1887.pdf|access-date=2015-04-15|archive-url=https://web.archive.org/web/20160304203847/http://llennatur.com/files/u1/on__Place-names_ThosMorgan_Pr_HWSouthey_1887.pdf|archive-date=2016-03-04|url-status=dead}} It has also been referred to as Elenydd and Elenid.{{cite book |title=A History of Wales from the Earliest Times to the Edwardian Conquest|last= Lloyd|first= John Edward|author-link= John Edward Lloyd|year= 1912|publisher= Longmans, Green, and Co.|page=253 |url= https://archive.org/stream/historyofwalesfr01lloyuoft#page/253/mode/2up|access-date=16 April 2015}} It was in the area known as Rhwng Gwy a Hafren.{{cite book|last1=Richards|first1=Melville|title=Welsh Administrative and Territorial Units|date=1969|publisher=University of Wales|isbn=978-0900768088|url=http://powysenc.weebly.com/crickhowell-fountain---cynog.html}} It was also associated with Gwrtheyrnion on the east of the Wye, together they formed a cantref.{{cite book|last1=Rees|first1=William|title=An Historical Atlas of Wales from Early to Modern Times|date=1951|publisher=Faber & Faber|quote=Plate 28}} This commote should not be confused with the commote of Deuddwr in Ystlyg which is also in Powys.

The village is home to a pub (The Triangle Inn), village hall and a parish church dedicated to St Bride ({{langx|cy|Sant Ffraid}}).

The Groe, a large park on the banks of the river, has walks, play areas and sports pitches.

Rhayader railway station was situated in the village until its closure in 1963.