Alvaiázere (European Portuguese pronunciation: [alvɐˈjazɨɾɨ] ⓘ) is a municipality in the district of Leiria in Portugal.

[2] The municipality is bordered by the municipalities of Ansião (to the north), Figueiró dos Vinhos (to the northeast and east), Ferreira do Zêzere (to the southeast), Ourém (to the southwest) and Pombal (to the west).

The present Mayor is Paulo Delgado Morgado, elected by the Social Democratic Party.

Manuel Vieira da Silva Borges e Abreu, 1st Baron of Alvaiázere was the main physician of King John VI of Portugal.

Administratively, the municipality is divided into 5 civil parishes (freguesias):[3]