卢森堡（卢森堡文：Lëtzebuerg、法文：Luxembourg、德文：Luxemburg），全称为卢森堡大公国(卢森堡语：Groussherzogtum Lëtzebuerg, 法语：Grand-Duché de Luxembourg, 德语：Großherzogtum Luxemburg), ，被邻国法国、德国和比利时包围，是一个位于欧洲的内陆国家，也是现今欧洲大陆仅存的大公国，首都卢森堡市。卢森堡是欧盟成员国，拥有欧盟多个下设机构，如欧洲法院、欧洲审计院以及欧洲投资银行，被称为继布鲁塞尔和斯特拉斯堡之后的欧盟“第三首都”。

Luxembourg /ˈlʌksəmbɜːrɡ/ (Luxembourgish:Lëtzebuerg; German:Luxemburg), officially the Grand Duchy of Luxembourg, is a landlocked country in western Europe. It is bordered by Belgium to the west and north, Germany to the east, and France to the south. Its capital Luxembourg City is together with Brussels and Strasbourg one of the three official capitals of the European Union and seat of the European Court of Justice, highest juridical instance in the EU. Its culture, people and languages are highly intertwined with its neighbors, making it essentially a mixture of French and Germanic cultures. The repeated invasions by its neighbor countries, especially in World War II, resulted in the country's strong will for mediation between France and Germany and led to the foundation of the European Union.