Llangynin (Welsh for 'the church of St. Cynin') is a village and community located in Carmarthenshire, Wales.

The population of the community taken at the 2011 census was 284.

[1] St Cynin's church is a grade II* listed building which stands some 2 km south of the centre of the village.

[2] The community is bordered by the communities of: Llanwinio; Meidrim; St Clears; and Llanboidy, all being in Carmarthenshire.

This Carmarthenshire location article is a stub.