Alentejo is a geographical, historical and cultural region of south-central and southern Portugal. Literally, in Portuguese means "beyond" (além) Tagus river (Tejo).
Alentejo includes the regions of Alto Alentejo and Baixo Alentejo. It corresponds to the districts of Beja, Évora, Portalegre and the municipalities of Alcácer do Sal, Grândola, Santiago do Cacém and Sines, in the district of Setúbal. According to the interpretations, the municipality of Ponte de Sor (in the district of Portalegre) may be included either in Alentejo or, alternatively, in Ribatejo.
It has borders with Beira Baixa in the North, with Spain (Andalucia and Extremadura in the east, with Algarve in the South and with the Atlantic Ocean, Ribatejo and Estremadura in the West.
Alentejo's area extends to 27,272 square kilometres (10,530 sq mi) (29.6% of the country) and has a population of 537,556 (5.1% of the country). Excluding Ponte de Sor, its area is 26,432 square kilometres (10,205 sq mi) and its population 520,834. The population density of Alentejo is 19.1/km².
The Alentejo is a region known for its traditional polyphonic singing groups, similar to those found on Sardinia, Corsica, etc.