Brecon Beacons National Park, officially Bannau Brycheiniog National Park , is a national park in Wales. It is named after the Brecon Beacons, or Bannau Brycheiniog in Welsh, the mountain range at its centre. The national park includes the highest mountain in South Wales, italic=, which has an elevation of 886 m.

The national park has a total area of 1344 km2.