Narberth is a town and community in Pembrokeshire, Wales. It was founded around a Welsh court and later became a Norman stronghold on the Landsker Line. It became the headquarters of the hundred of Narberth. It was once a marcher borough. George Owen described it in 1603 as one of nine Pembrokeshire "boroughs in decay".

The A478 road is a major road in Wales. The route is from its junction with the A487 at Cardigan, Ceredigion, to Tenby, Pembrokeshire. It crosses the Preseli Hills and winds through farmland for almost all of its route. The road just touches the very west of Carmarthenshire.