Rio Maior

Rio Maior () is a municipality in the Santarém district and the Ribatejo historic province of Portugal. The population in 2011 was 21,192, in an area of 272.76 km².
The present mayor is Isaura Morais of the Social Democratic Party (PSD), the first woman to be elected mayor in the municipality. The municipal holiday is November 6.
Parishes.
Administratively, the municipality is divided into ten civil parishes ("freguesias"):