Llangyndeyrn

Llangyndeyrn is a village and community in the River Gwendraeth river valley, Carmarthenshire, in Dyfed region of West Wales, United Kingdom. The village name is often misspelt as Llangendeirne.

The Welsh language name of the village means "the church of St. Cyndeyrn". A Welsh saint named Cyndeyrn is the equivalent of the English Kentigern and the Scottish St. Mungo; but the St Cyndeyrn associated with Llangyndeyrn is believed to be a different one, a descendant of Cunedda whose festival is on 5/6 August.

Both St Cyndeyrn's parish church and Capel Salem are grade II* listed buildings.

The small village is well known for its resistance against the attempt to flood the village in order to create a reservoir for the Borough of Swansea.

Within the village is the Ysgol Y Fro school for infants.

The community is bordered by the communities of: Llangunnor; Llanddarog; Pontyberem; Llanelli Rural; Trimsaran; Kidwelly; and Llandyfaelog, all being in Carmarthenshire.