Nantmel is a village and a community in Radnorshire, Powys, Wales, and is 76.5 miles (123.1 km) from Cardiff and 150.5 miles (242.2 km) from London.[1][2] In 2011 the population of Nantmel was 621 with 11.8% of them able to speak Welsh.[3] The population of the community was 637 as of the 2011 UK Census.
In 1870, John Marius Wilson described the village as a parish and village in the Rhayader district or Radnor.[4]