Dual nationality is permissible under Swiss law.
This means that Swiss nationals may acquire foreign citizenship rights without forfeiting their rights as a Swiss citizen. However, certain countries demand that a person who acquires the nationality of that country must renounce their previous citizenship rights. Please contact the competent authority in the country concerned for more information on its nationality legislation.
Expatriate Swiss nationals who have acquired foreign citizenship rights must inform the Swiss representation where they are registered of their dual nationality.
Foreign nationals seeking to obtain Swiss citizenship should note that domestic legislation in their country of origin may require them to forfeit their previous citizenship rights. Authoritative information on this matter can be obtained from the authorities in the country of origin.