Estoril (Portuguese pronunciation: [(ɨ)ʃtuˈɾiɫ]) is a town and a former civil parish in the municipality of Cascais, Portugal. In 2013, the parish merged into the new parish Cascais e Estoril. In 2011, the population of Estoril included 26,397 inhabitants, occupying an area of approximately 8.79 km2 (3.39 sq mi). One of the suburbs of Lisbon.