Can you keep your Madagascar citizenship when you become a U.S. citizen?
Not allowed
No, in general
Malagasy nationals of origin who voluntarily acquire another citizenship, such as U.S. citizenship, lose their Malagasy nationality.
What the law says
- Dual nationality is not allowed in Madagascar for Malagasy of origin.
- Nationals of origin may be denaturalized for voluntarily acquiring another nationality.
- Naturalized persons may retain their prior nationality, unlike nationals of origin.
- Nationals of origin can renounce their nationality only if approved by the state.
“Dual nationality is not allowed in Madagascar for Malagasy of origin”
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 Madagascar lets you keep yours.
Source: Malagasy nationality law (Wikipedia, summarized on 2026-11-11). Laws change — confirm with the Madagascar embassy or consulate before your oath ceremony. This is not legal advice.
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