Algés (Portuguese pronunciation: [aɫˈʒɛʃ]) is a Portuguese parish, located in the municipality of Oeiras. It had a 2001 population of 19,540 inhabitants and a total area of 1.92 km², its density was 10,124.4/km². The parish is located near the Tagus river,and between the town of Oeiras and the capital city of Lisbon. It is also a part of the Greater Lisbon Area. It is mostly a residential suburb.
Algés was elevated to a town on August 16, 1991 and the parish was officially created on June 11, 1993 after separating from the parish of Carnaxide.