Área Metropolitana de Lisboa (Lisbon Metropolitan Area, AML) is a territorial zone that includes 18 municipalities.

The Metropolitan Area of Lisbon (AML) is the largest population concentration in Portugal. Preliminary data from the 2001 Portuguese census puts the population of the metropolitan area at 2,661,850 (about ¼ of the Portuguese population), of which 20.9% lives in the city of Lisbon. About 27.1% of the population of continental Portugal lives in the 3,219 km² of AML (3.3% of the continental territory of Portugal), which has an active population of about 1.3 million people. With 32.7% of the national employment being located in its territory, the contribution of AML for the Gross Domestic Product surpasses 36%.

The municipalites north of the Tagus River are from Lisbon District, South are from de Setubal District.