Luxembourg, officially the Grand Duchy of Luxembourg, is a small landlocked country in western Europe, bordered by Belgium, France, and Germany. Luxembourg is a parliamentary representative democracy with a constitutional monarchy, ruled by a Grand Duke. It is the world's only remaining sovereign Grand Duchy. The country has a highly developed economy, with the highest Gross Domestic Product per capita in the world. Its historic and strategic importance dates back to its founding as a Roman era fortress site and Frankish count's castle site in the Early Middle Ages. It was an important bastion along the Spanish road when Spain was the principal European power influencing the whole western hemisphere and beyond in the 14th–17th centuries.

Luxembourg is a founding member of the European Union, NATO, the United Nations, Benelux, and the Western European Union, reflecting the political consensus in favour of economic, political, and military integration. The city of Luxembourg, the capital and largest city, is the seat of several institutions and agencies of the European Union.

Inhabitants: 480,222
Area: 2,586.4 km2
Capital: Luxembourg (city) (76,420)
Languages: French, German, and Luxembourgish
Religion: Roman Catholic
GDP per capita: $81,511
Government: Parliamentary democracy and Constitutional grand duchy
Climate: Temperate