Llangynin
| Llangynin | |
|---|---|
| Village and community | |
| Llangynin school | |
| Location within Carmarthenshire | |
| Principal area | |
| Country | Wales | 
| Sovereign state | United Kingdom | 
| Police | Dyfed-Powys | 
| Fire | Mid and West Wales | 
| Ambulance | Welsh | 
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.
St Cynin's church is a grade II* listed building which stands some 2 km south of the centre of the village.
The community is bordered by the communities of: Llanwinio; Meidrim; St Clears; and Llanboidy, all being in Carmarthenshire.