Can I Keep My South Korean Citizenship if I Become a U.S. Citizen?
It depends on your situation
South Korea restricts dual citizenship for most adults.
South Korea generally requires adults who naturalize abroad to choose one nationality, although there are exceptions, including for some seniors. Confirm your situation with a Korean consulate.
What the United States does
The United States allows dual citizenship. It does not require you to give up your previous citizenship to naturalize, and taking the Oath of Allegiance does not, by itself, make the U.S. treat your other citizenship as lost. Whether you actually keep it depends on the laws of your country of origin, described below.
Before you decide
Citizenship laws change, and your individual case can have details that matter. Before you naturalize, confirm the current rules with a South Korea consulate or embassy, and consider speaking with an immigration attorney if keeping your other citizenship is important to you.
This is general information, not legal advice, and is current as of 2026. Always confirm with official sources.