Aljezur (Portuguese pronunciation: [alʒɨˈzuɾ] ), officially the Town of Aljezur (Portuguese: Vila de Aljezur), is a town and municipality of the District of Faro and Algarve region, in Portugal. The population in 2011 was 5,884, in an area of 323.50 km. The municipality comprises 4 parishes.
The Portuguese conquest of the Algarve, the southern-most region in modern-day Portugal, occurred between 1238, when the castle of Estômbar was captured by the Order of Santiago, and 1249, when king Afonso III of Portugal captured Faro, Loulé, Aljezur, Porches and Albufeira.
Barlavento is the western region of the Algarve, comprising the municipalities of Albufeira, Aljezur, Lagoa, Lagos, Monchique, Portimão, Silves and Vila do Bispo.