Fronteira (pronounced [fɾõˈtɐjɾɐ] ⓘ) is a municipality in Portalegre District in Portugal.

The population in 2011 was 3,410,[1] in an area of 248.60 km2.

[2] The present Mayor is Rogério David Sádio da Silva, elected by the Social Democratic Party.

The municipal holiday is April 6.

Administratively, the municipality is divided into 3 civil parishes (freguesias):[3] This Portalegre location article is a stub.