Can you keep your Colombia citizenship when you become a U.S. citizen?
Allowed
Yes, in general
Colombian citizens who become U.S. citizens keep their Colombian nationality, since acquiring another nationality does not in itself cause loss of Colombian nationality.
What the law says
- Colombian nationality law acknowledges that a Colombian by birth or by naturalization can also have other nationalities.
- Colombians who acquired Colombian nationality by birth cannot be deprived of it under any circumstances, so acquiring another nationality does not in itself result in loss of Colombian nationality.
- Certain government positions are barred for those with dual nationality; for example, career diplomats may not hold dual nationality, and a dual national appointed to a diplomatic position cannot acquire career rights.
- Colombian citizens can renounce their nationality, which requires appearing at a Colombian embassy or consulate (if abroad) or the Ministry for Foreign Affairs (if residing in Colombia), and the petitioner must hold a nationality from a different country.
- A person who renounced Colombian nationality may recover it later.
“acquiring another nationality does not in itself result in the loss of Colombian nationality”
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 Colombia lets you keep yours.
Source: Colombian nationality law (Wikipedia, summarized on 2026-11-11). Laws change — confirm with the Colombia embassy or consulate before your oath ceremony. This is not legal advice.
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