Alcanena (Portuguese pronunciation: [ɐɫkɐˈnenɐ]) is a municipality in Santarém District in Portugal. The population in 2011 was 13,868, in an area of 127.33 km².
The current Mayor is Fernanda Maria Pereira Asseiceira (Partido Socialista) and the president of the Municipal Assembly is Silvestre Pereira (Partido Socialista). The municipal holiday is Ascension Day.
Administratively, the municipality is divided into 7 civil parishes (freguesias):