Can you keep your Argentina citizenship when you become a U.S. citizen?
Allowed
Yes, in general
Argentine citizens who become U.S. citizens keep their Argentine citizenship, since dual nationality is accepted and Argentine nationality cannot be relinquished.
What the law says
- Dual nationality is accepted in Argentina.
- Argentine nationality cannot be relinquished and remains with individuals throughout their lifetime.
- A 2009 court ruling reaffirmed nationality as inalienable and rejected renunciation requests.
- Citizenship may be revoked only if obtained through criminal means or for activities deemed harmful to the state.
- The United States is listed among countries with a reciprocity agreement (until 20 October 1981) regarding how naturalized Argentines are treated on entry.
“Dual nationality is accepted in Argentina.”
What about the U.S. side?
The United States allows dual citizenship. At the oath ceremony you promise to renounce allegiance to other countries, but U.S. law does not make you formally give up your other passport. The question is only whether Argentina lets you keep yours.
Source: Argentine nationality law (Wikipedia, summarized on 2026-11-11). Laws change — confirm with the Argentina embassy or consulate before your oath ceremony. This is not legal advice.
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