Beja (Portuguese pronunciation: [ˈbɛʒɐ]) is a city in the Beja Municipality in the Alentejo region, Portugal. The municipality has a total area of 1,147.1 km² and a total population of 34,970 inhabitants. The city proper has a population of 21,658.

The municipality is composed of 18 parishes, and is the capital of the Beja District. The present Mayor is Francisco Santos, elected by the Unitarian Democratic Coalition. The municipal holiday is Ascension Day. The Portuguese Air Force has an airbase in the area - the Air Base No. 11.

Situated on a hill (277 m), commanding a strategic position over the vast plains of the Baixo Alentejo, Beja was already an important place in antiquity. Already inhabited in Celtic times, the town was later named Pax Julia by Julius Caesar in 48 BCE, when he made peace with the Lusitanians. He raised the town to be the capital of the southernmost province of Lusitania (Santarém and Braga were the other capitals of the conventi). During the reign of emperor Augustus the thriving town became "Pax Augusta". It was already then a strategic road junction.

Portugal ⁱ/ˈpɔrtʃʉɡəl/ (Portuguese: Portugal, IPA: [puɾtuˈɣaɫ]), officially the Portuguese Republic (Portuguese: República Portuguesa) is a country situated in southwestern Europe on the Iberian Peninsula . Portugal is the westernmost country of mainland Europe, and is bordered by the Atlantic Ocean to the West and South and by Spain to the North and East. The Atlantic archipelagos of the Azores and Madeira are part of Portugal. The country is named after its second largest city, Porto, whose Latin name was Portus Cale.

The land within the borders of the current Portuguese Republic has been continuously settled since prehistoric times: occupied by Celts like the Gallaeci and the Lusitanians, integrated into the Roman Republic and later settled by Germanic peoples such as the Suebi, Swabians, Vandals and the Visigoths. In the 8th century most of the Iberian Peninsula was conquered by Moorish invaders professing Islam, which were later expelled by the Knights Templar under the Order of Christ. During the Christian Reconquista, Portugal established itself as an independent kingdom from León in 1139, claiming to be the oldest European nation state.