Carmarthenshire ( or Sir Gâr) is a unitary authority in the south west of Wales and one of thirteen historic counties. It is the third largest in Wales. The three largest towns are Llanelli, Carmarthen and Ammanford. The county town and administrative centre of Carmarthenshire is Carmarthen and the most populous settlement is the area in and around the town of Llanelli.
With its fertile land and agricultural produce, Carmarthenshire is known as the "Garden of Wales".