Ansião est une municipalité du Portugal, située dans le district de Leiria et la région Centre.

Ansião is a municipality in Portugal with a total area of 176.2 km² and a total population of 13,673 inhabitants. The municipality is composed of 8 parishes, and is located in the district of Leiria. The present Mayor is Fernando Ribeiro Marques, elected by the Social Democratic Party. The municipal holiday is the Ascension on May 25.