Trap, or
Trapp, is a hamlet in the county of
Carmarthenshire in southwest
Wales, located on the western border of the
Brecon Beacons National Park, around four miles southeast of the town of
Llandeilo. It is unclear whether the name – which often appears as Trapp on maps, although the spelling with a single
p is generally preferred locally – refers to a fish-trap, a water-trap (
mill-leat), or, given that the village is in Cwm Lladron ("robbers' valley"), an ambush point.