Bwlch is a village and an electoral ward in the community of Cwmdu and District, Powys, south Wales. The settlement is strung out along the A40 road which crosses a low col above the Usk Valley at this point on its route between Brecon and Crickhowell.
Population: 1,026 (Llanfihangel Cwmdu with Bwlch and Cathedine) (2011)