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Dual Citizenship - Dual Nationality

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Dual Citizenship, Dual Nationality

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The concept of dual citizenship or dual nationality means that a person is a citizen of two countries at the same time. 

Because each country has its own citizenship laws based on its own policies, persons may have dual nationality by automatic operation of different laws rather than by choice.

For example, a child born in a foreign country to U.S. citizen parents may be both a U.S. citizen and a citizen of the country of birth. Also, a U.S. citizen may acquire foreign citizenship by marriage, or a person naturalized as a U.S. citizen may not lose the citizenship of the country of birth.

U.S. law does not mention dual nationality (dual citizenship) or require a person to choose one citizenship or another.

A person who is automatically granted another citizenship does not risk losing U.S. citizenship.

However, a person who acquires a foreign citizenship by applying for it may lose U.S. citizenship. In order to lose U.S. citizenship, the law requires that the person must apply for the foreign citizenship voluntarily, by free choice, and with the intention to give up U.S. citizenship.  Intent can be shown by the person's statements or conduct.

The U.S. Government recognizes that dual citizenship (dual nationality) exists but does not encourage it as a matter of policy because of the problems it may cause.  Dual nationals owe allegiance to both the United States and the foreign country, and they are required to obey the laws of both countries.

Claims of other countries on dual national U.S. citizens may conflict with U.S. law.  Either country has the right to enforce its laws, particularly if the person is in that country (even just for traveling). The country where a dual national is located generally has a stronger claim to that person's allegiance. 

It is important to note that dual citizenship (dual nationality) may limit U.S. Government efforts to assist citizens abroad.

Most U.S. citizens, including dual nationals, must use a U.S. passport to enter and leave the United States. Dual nationals may also be required by the foreign country to use its passport to enter and leave that country. Use of the foreign passport does not endanger U.S. citizenship.

Most countries permit a person to renounce or otherwise lose citizenship. Information on losing foreign citizenship can be obtained from the foreign country's embassy or consulate in the United States. Americans can renounce U.S. citizenship in the proper form at U.S. embassies and consulates abroad.

HELP! with Dual Citizenship (Dual Nationality)

  • Have a specific question? To help you find an answer quickly, we have placed "Ask a Visa & Immigration Lawyer" boxes on this page. Simply type a question in any of the boxes to receive a response online from a visa and immigration lawyer.

  • For advice in the U.S., call the Office of Overseas Citizens Services at 202-647-5226.

  • Information on losing foreign citizenship can be obtained from the foreign country's embassy or consulate in the United States.

  • For assistance outside of the U.S., contact the nearest U.S. Consulate or Embassy.
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