Cascais (Portuguese pronunciation: [kɐʃˈkajʃ]) is a coastal town and a municipality in Portugal, 30 kilometres (19 miles) west of Lisbon. It is a cosmopolitan suburb of the Portuguese capital and one of the richest municipalities in Portugal. The population in 2011 was 206,479, in an area of 97.40 km². The former fishing village gained fame as a resort for Portugal's royal family in the late 19th century and early 20th century. Nowadays, it is a popular vacation spot for both Portuguese and foreign tourists.
It is located on the Estoril Coast (also known as the Portuguese Riviera), in the Greater Lisbon subregion. It has an airport for general aviation serving the Lisbon Region in Tires (S. Domingos de Rana), the Cascais Aerodrome, that also offers domestic scheduled flights by Aero VIP.