The Comunidade Intermunicipal da Beira Baixa is an administrative division in eastern Portugal. It was created in 2013. The seat of the intermunicipal community is Castelo Branco. Beira Baixa comprises a large part of the former Castelo Branco District. The population in 2011 was 89,063, in an area of 4,614.64 km².
The intermunicipal community of Beira Baixa consists of 6 municipalities:
Coordinates: 39°49′N 7°30′W / 39.82°N 7.50°W