Ansião (Portuguese pronunciation: [ɐ̃siˈɐ̃w] ) is a municipality in Leiria District in Portugal. The population in 2011 was 13,128, in an area of 176.09 km².

The present Mayor is António José Domingues, elected by the Socialist Party. The municipal holiday is Ascension Day.

Parishes

Administratively, the municipality is divided into 6 civil parishes (freguesias):

• Alvorge
• Ansião (parish)
• Avelar
• Chão de Couce
• Pousaflores
• Santiago da Guarda

International relations

Ansião is twinned with the cities of Erbach in Germany, the Brazilian cities of Santos and São Vicente, and Mosteiros in the Cape Verdian Islands.