Hey, I'm Argentinian, and since this was about linguistic and I saw several question about language in this pecific American country, here you have some info from a couple of sites:
Argentina is predominantly a Spanish-speaking country with 33 million speakers—the fourth largest after Mexico, Spain, and Colombia. Argentines pronounce Spanish, which they call castellano, with a distinctive Italian accent—a legacy inherited from European immigration (which is the predominant ethnic group in the country, with over 50% of the population being of Italian-Argentines).
Argentines are the only large Spanish-speaking country that universally use what is known as voseo—the use of the pronoun vos instead of tú (the familiar "you"). The most prevalent dialect is Rioplatense (spoken also in Uruguay).
A phonetic study conducted by the Laboratory for Sensory Investigations of CONICET and the University of Toronto showed that the accent of the inhabitants is closer to the Neapolitan dialect of Italian than any other spoken language. Italian immigration influenced Lunfardo
2nd language
Italian
Argentina has more than 1,500,000 Italian speakers; this tongue is the second most spoken language in the nation. Italian immigration from the second half of the 19th century to the beginning of the 20th century made a lasting and significant impact on the pronunciation and vernacular of the nation's spoken Spanish, giving it an Italian flare. In fact, Italian has contributed so much to Rioplatense that many foreigners mistake it for Italian.
Cocoliche, a Spanish-Italian creole, was spoken mainly by first and second-generation immigrants from Italy, but is no longer in daily use; it is sometimes used in comedy. Some Cocoliche terms were adopted into Lunfardo slang.
3rd language
German
Standard German is spoken by 500,000[2] Argentines of German ancestry, though it has also been stated that the there could be as much as 1,800,000.[3] German today, is the third most spoken language in Argentina.
Welsh Language
Argentina has the largest amount of Welsh speakers outside the UK. Welsh is spoken by over 30,000, in Southern Argentina (mostly in cities with stron welsh heritage such as Trelew, Madryn, Rawson, Gaiman...).
Hebrew and Yiddish
Argentina is home to a large Jewish community (2nd largest in the Western world after the US), some of whom speak Hebrew as a second language, while others speak Eastern Yiddish[1].
Argentina is predominantly a Spanish-speaking country with 33 million speakers—the fourth largest after Mexico, Spain, and Colombia. Argentines pronounce Spanish, which they call castellano, with a distinctive Italian accent—a legacy inherited from European immigration (which is the predominant ethnic group in the country, with over 50% of the population being of Italian-Argentines).
Argentines are the only large Spanish-speaking country that universally use what is known as voseo—the use of the pronoun vos instead of tú (the familiar "you"). The most prevalent dialect is Rioplatense (spoken also in Uruguay).
A phonetic study conducted by the Laboratory for Sensory Investigations of CONICET and the University of Toronto showed that the accent of the inhabitants is closer to the Neapolitan dialect of Italian than any other spoken language. Italian immigration influenced Lunfardo
2nd language
Italian
Argentina has more than 1,500,000 Italian speakers; this tongue is the second most spoken language in the nation. Italian immigration from the second half of the 19th century to the beginning of the 20th century made a lasting and significant impact on the pronunciation and vernacular of the nation's spoken Spanish, giving it an Italian flare. In fact, Italian has contributed so much to Rioplatense that many foreigners mistake it for Italian.
Cocoliche, a Spanish-Italian creole, was spoken mainly by first and second-generation immigrants from Italy, but is no longer in daily use; it is sometimes used in comedy. Some Cocoliche terms were adopted into Lunfardo slang.
3rd language
German
Standard German is spoken by 500,000[2] Argentines of German ancestry, though it has also been stated that the there could be as much as 1,800,000.[3] German today, is the third most spoken language in Argentina.
Welsh Language
Argentina has the largest amount of Welsh speakers outside the UK. Welsh is spoken by over 30,000, in Southern Argentina (mostly in cities with stron welsh heritage such as Trelew, Madryn, Rawson, Gaiman...).
Hebrew and Yiddish
Argentina is home to a large Jewish community (2nd largest in the Western world after the US), some of whom speak Hebrew as a second language, while others speak Eastern Yiddish[1].