Begelly (Welsh: Begeli) is a village and parish in Pembrokeshire, Wales. It is situated in the south of the county, 7 km north of Tenby. In addition to the village, the parish includes the hamlet of Thomas Chapel (51°44′36″N4°44′42″W). It has a web of small settlements associated with the 19th century anthracite mining industry. The parish, together with the parish of Reynalton and part (Kilgetty) of St.