Argentina, officially the Argentine Republic, is a country in the southern half of South America. Argentina covers an area of 2,780,400 km², making it the second-largest country in South America after Brazil, the fourth-largest country in the Americas, and the eighth-largest country in the world.

Argentina is a federal state subdivided into twenty-three provinces, and one autonomous city, which is the federal capital and largest city of the nation, Buenos Aires. The provinces and the capital have their own constitutions but exist under a federal system. Argentina claims sovereignty over the Falkland Islands, South Georgia, the South Sandwich Islands, and a part of Antarctica.