Rhandirmwyn Welsh: Rhandir-mwyn
The Royal Oak Inn in the centre of Rhandirmwyn
Rhandirmwyn Location within Carmarthenshire
OS grid reference	SN7838843758
Community	Llanfair-ar-y-bryn
Principal area	Carmarthenshire
Preserved county	Dyfed
Country	Wales
Sovereign state	United Kingdom
Post town	Llandovery
Postcode district	SA20
Dialling code	01550
Police	Dyfed-Powys
Fire	Mid and West Wales
Ambulance	Welsh
UK Parliament	Caerfyrddin
Senedd Cymru – Welsh Parliament	Carmarthen East and Dinefwr
List of places UK Wales Carmarthenshire 52°04′42″N 3°46′29″W / 52.0784°N 3.7748°W / 52.0784; -3.7748

Rhandirmwyn (or Rhandir-mwyn) is a small village in the north east of Carmarthenshire, Wales. Located in the upper Towy valley, 3 km north of Cilycwm village, it extends on both sides of the river. It lies in the parish of Llanfair-ar-y-bryn.

The Nantymwyn Lead Mine, above the village, was in existence since Roman times, and closed in 1932.^[1] Tourism is now the main industry.

The village is also the location of Coleg Elidyr.

The Pwllpriddog Oak stands nearby.

• Morgan B. Williams (1831–1903), a coal industry executive and US politician; Republican member of the U.S. House of Representatives for Pennsylvania from 1897 to 1899. He was born in Rhandir-Mwyn.

• Rhandirmwyn home page
• Map sources for Rhandirmwyn