T The phenomenon of dual citizenship has emerged as one of the evolving legal issues in contemporary international law, as it gives rise to significant consequences concerning an individual\\\'s legal status, rights, and obligations. indonesia adheres to the principle of single citizenship, with a limited exception in the form of restricted dual citizenship for children born of mixed marriages. in contrast, the united states adopts a more flexible approach toward dual citizenship. this thesis examines the legal regulation of limited dual citizenship under the citizenship laws of indonesia and the united states, as well as the legal implications for individuals holding such status. the findings indicate that indonesia permits limited dual citizenship only until the individual reaches the age of 18 or marries, after which the individual is granted a period of three years to elect one nationality, as stipulated under law number 12 of 2006 concerning the citizenship of the republic of indonesia. conversely, the united states does not expressly prohibit dual citizenship under its constitution, the immigration and nationality act, or judicial precedents. these differing legal approaches give rise to various legal implications concerning political rights, immigration status, taxation, diplomatic protection, and potential conflicts of jurisdiction. accordingly, a comprehensive understanding of the legal systems of both countries is essential to ensure legal certainty.