Mafra is a city of 77,000 people (2011) in Greater Lisbon, Estremadura, Portugal. It is mostly known for the sumptuous Mafra National Palace, which is a UNESCO World Heritage Site. Other points of interest around the municipality include the Tapada Nacional de Mafra, an enclosed wildlife and game reserve, and Ericeira's World Surf Reserve, the second in the world.
Mafra is mainly rural with some tourist activity centred in the town and especially in the seaside town of Ericeira, which has become a key destination for national and international surfers. Since the completion of the A8 motorway, linking the eastern part of the municipality to the centre of Lisbon, commuter population has increased substantially.