Andorra is officially the Principality of Andorra. Andorra is a sovereign landlocked microstate on the Iberian Peninsula, in the eastern Pyrenees, bordered by France to the north and Spain to the south. Believed to have been created by Charlemagne, Andorra was ruled by the count of Urgell until 988, when it was transferred to the Roman Catholic Diocese of Urgell. The present principality was formed by a charter in 1278. It is known as a principality as it is a diarchy headed by two princes: the Bishop of Urgell in Catalonia, Spain, and the President of the French Republic.

Andorra is the sixth-smallest nation in Europe, having an area of 468 square kilometres (181 sq mi) and a population of approximately 77,006. The Andorran people are a Romance ethnic group of originally Catalan descent. Andorra is the 16th-smallest country in the world by land and the 11th-smallest by population. Its capital, Andorra la Vella, is the highest capital city in Europe, at an elevation of 1,023 metres (3,356 feet) above sea level. The official language is Catalan, but Spanish, Portuguese, and French are also commonly spoken.

Due to its location in the eastern Pyrenees mountain range, Andorra consists predominantly of rugged mountains, the highest being the Coma Pedrosa at 2,942 metres (9,652 ft), and the average elevation of Andorra is 1,996 metres (6,549 ft). These are dissected by three narrow valleys in a Y shape that combine into one as the main stream, the Gran Valira river, leaves the country for Spain (at Andorra's lowest point of 840 m or 2,756 ft). Andorra's land area is 468 km2 (181 sq mi).