Llangennech is a village in the area of Llanelli, Carmarthenshire, Wales. It is governed by Carmarthenshire County Council and Llanelli Rural council. It falls in the Llanelli parliament Constituency. Llangennech is also the name of an electoral ward coterminous with the village and has its own community council. It was formerly a coal mining community, with several local collieries mining steam coal. There is also a large Labour tradition in the village emanating from the mine workers.