卡斯凯什（葡萄牙语：Cascais）是位于葡萄牙西部里斯本大区的一座沿海城市，面积97.4平方公里，人口181,444人。

• Municipality official website
• A flickr album of Cascais

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 (named after Estoril, a town in the municipality), 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.