The Lisbon Metropolitan Area is a metropolitan area in Portugal centered on Lisbon, the capital and largest city of the country. The metropolitan area, covering 18 municipalities is the largest urban area in the country and the 10th largest in the European Union, with a population in 2015 of 2,812,678 in an area of 3,015.24 km².

Lisbon is the capital and largest city of Portugal, with an estimated population of 548,703 as of 2022 within its administrative limits and 2,871,133 within the metropolis. Lisbon is mainland Europe's westernmost capital city and the only one along the Atlantic coast, the others being on islands. The city lies in the western portion of the Iberian Peninsula, on the northern shore of the River Tagus. The western portion of its metro area, the Portuguese Riviera, hosts the westernmost point of Continental Europe, culminating at Cabo da Roca.