Can you keep your South Sudan citizenship when you become a U.S. citizen?
Allowed
Yes, in general
South Sudanese citizens who become U.S. citizens keep their South Sudanese citizenship, since dual nationality has been allowed since independence in 2011.
What the law says
- Dual nationality has been allowed in South Sudan since its independence in 2011.
- South Sudanese nationals can renounce their nationality, but only pending approval by the president.
- Nationals may be denaturalized for behaving as if one is a national of another country, or for working for a foreign government or military without authorization.
- Denaturalization can also occur for disloyal acts or crimes against the state or state security, or for fraud or concealment in a naturalization petition.
“Dual nationality has been allowed in South Sudan since its independence in 2011.”
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 South Sudan lets you keep yours.
Source: South Sudanese nationality law (Wikipedia, summarized on 2026-11-11). Laws change — confirm with the South Sudan embassy or consulate before your oath ceremony. This is not legal advice.
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