|(3,000,000 – 3,500,000)|
|Regions with significant populations|
|Predominantly in Rioplatense Spanish. Minority speak Euskera (Basque) and/or French|
|Predominantly Roman Catholicism|
|Related ethnic groups|
|Basques, Basque Chileans, Basque Mexicans, Basque Uruguayans, Spanish Argentines|
Basque settlement in Argentina took place in the late 19th and early 20th centuries when many immigrants arrived in Argentina from the Basque Country. Basque people had already played a large part in the conquest and development of Argentina as a Spanish colony and in its independence, including Juan de Garay, the founder of the capital Buenos Aires.
Between 1857 and 1940 more than 2 million Spanish people emigrated to Argentina, mostly from Galicia and the Basque Country, which is a region in the western Pyrenees mountains straddling parts of France and Spain. Both Spanish and French Basques (including Navarrans) arrived in Argentina as part of a wider Basque diaspora.
Today, around 10% of the Argentine population are of Basque descent. The destination of the majority of Basque emigrants was Argentina, with Basque culture contributing much to Argentine culture. 
Basque cultural influences
There are Basque cultural centres (Euskal Etxeak) in most large cities, as well as pelota courts and Basque language schools. Buenos Aires has a major Basque centre, the Laurak Bat, and a cultural foundation, the Juan de Garay Institute, named after the city's Basque founder. Politicians from the Basque Country autonomous community of Spain, including the lehendakari, are regular visitors to the country, and the Basque government has diplomatic representation in Argentina, currently María Elisa Díaz de Mendibil.
Many places have been given Basque names, including the city of Ezeiza and its surrounding partido, best known as the location of Argentina's main international airport, Ministro Pistarini. The seaside resort of Necochea is a major centre of Basque culture and also has a Basque name. Several Presidents of Argentina have been of Basque descent, including Justo José de Urquiza, José Evaristo Uriburu, Hipólito Yrigoyen, José Félix Uriburu and Pedro Eugenio Aramburu, not to mention other figures, notably Eva Perón, Che Guevara, Maxima Zorreguieta and well-known football players as Julio Olarticoechea, Sergio Goycochea or Gonzalo Higuaín. There are an estimated 15,000 Basque surnames in Argentina.