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|30,000 – 50,000|
|Regions with significant populations|
|Buenos Aires, Comodoro Rivadavia, La Plata, Mar del Plata|
|Rioplatense Spanish, Greek|
|Christianity (mostly Greek Orthodox)|
Greek Argentines (Greek: Ελληνοαργεντινοί; Spanish: Greco-argentinos) are Argentine citizens of Greek descent or Greek-born people who reside in Argentina. Despite not being as large as other European communities, the Greeks have contributed a lot to their new country. The first immigrants arrived at the end of the 18th century, while the bulk of immigration occurred during the first half of the 20th century. Included are Aromanians and Megleno-Romanians, who became adjusted to Argentine society because of the linguistic similarities between Romanian and Spanish, as well as Latin identity of Aromanians and Megleno-Romanians.
Rear Admiral Giorgos "Jorge" Kolmaniatis, a native from Hydra who arrived in the United Provinces of the Río de la Plata in 1811, strongly contributed in the Argentine War of Independence by leading and training the newly formed fleet. Samuel Spiro, a fellow naval officer, either from Spetses or Mytilene, scuttled his ship in the Uruguay River rather than surrender it to the Spanish Armada. Both men's names were honored with Argentine Navy ships christened after them in 1937.
The second wave of Greeks arriving in Argentina came in the 20th century, mainly after the Asia Minor Campaign and the disaster in 1922, with the end of the Megali Idea. Again huge masses of refugees who were sent to Greece by the population exchange agreement between Kemal Ataturk and Eleftherios Venizelos, came towards these latitudes seeking for a change to restart their lives from zero. Most of them were from Smyrna, Ayvalik and other Ionian cities. They settled in what is today known as the capital of foreign immigration in Argentina, the city of Berisso, near La Plata.
The third wave, taking part in the early 1930s instead was the first one with a strong concentration of immigrants coming from the mainland, mostly villagers and peasants from Arcadia, Laconia and Messenia in the Peloponnese. The choosing of Argentina as a destination was due the temporary denial for immigration in the United States, making South America and Argentina in particular the new Eldorado.
The majority chose Buenos Aires as their place to stay, but others instead made their way far in the interior such as Córdoba and Mendoza. Port cities like Rosario, Zárate, Campana, Berisso and Necochea are also places where Hellenic immigrants established.