Slovenian nationality law

Slovenian nationality law is based primarily on the principles of Jus sanguinis, in that descent from a Slovenian parent is the primary basis for acquisition of Slovenian citizenship. However, although children born to foreign parents in Slovenia do not acquire Slovenian citizenship on the basis of birthplace, place of birth is relevant for determining whether the child of Slovenian parents acquires citizenship.
Slovenia became independent from Yugoslavia on June 25, 1991, and transitional provisions were made for the acquisition of Slovenian citizenship by certain former Yugoslav citizens.
Dual citizenship is permitted in Slovenia, with the exception that those acquiring Slovenian citizenship by naturalisation are normally required to renounce any foreign citizenship they hold.
Transitional provisions on independence - 25 June 1991.
Prior to independence in 1991, Slovenians were citizens of Yugoslavia. However, within Yugoslavia an internal "citizenship of the Republic of Slovenia" existed, and at independence any Yugoslav citizen who held this internal "Slovenian citizenship" automatically became a Slovenian citizen.
Certain other former Yugoslav citizens were permitted to acquire Slovenian citizenship under transitional provisions:
Citizenship by birth and adoption.
A child born in Slovenia is a Slovenian citizen if "either" parent is a Slovenian citizen
Where the child is born outside Slovenia the child will be automatically Slovenian if:
A person born outside Slovenia with one Slovenian parent who is not Slovenian automatically may acquire Slovenian citizenship through:
Children adopted by Slovenian citizens may be granted Slovenian citizenship.
Citizenship by naturalization.
A person may acquire Slovenian citizenship by naturalization upon satisfying the following conditions:
Exceptions to the requirements for naturalization
Children aged under 18 can normally be naturalized alongside their parent, if resident in Slovenia. Those aged 14 or over must normally give their own consent.
Deprivation of citizenship.
Involuntary deprivation of citizenship.
Involuntarily deprivation of citizenship occurred in Slovenia during a period of 'identity erasure' whereby a number of vital records and registries were cleansed of people when the former Yugoslavia collapsed. Involuntary deprivation of Slovenian citizenship may only occur, though, when the Slovenian holds a second nationality, and only deprived in circumstances of which are based on "activities ... contrary to the international and other interests of the Republic of Slovenia". These are generally defined as:
Voluntary deprivation of citizenship.
Slovenian citizens who possess another nationality may normally renounce Slovenian citizenship if resident outside Slovenia.
Dual citizenship.
Dual citizenship is restricted but not prohibited in Slovenia. Persons who become Slovenian through naturalisation may be required to renounce their former nationality upon acquisition of Slovenian nationality. Slovenians by birth who hold a multiple nationality may be subject to circumstances where they can be legally deprived of their citizenship in certain circumstances.
Citizenship of the European Union.
Because Slovenia forms part of the European Union, Slovenian citizens are also citizens of the European Union under European Union law and thus enjoy rights of free movement and have the right to vote in elections for the European Parliament. When in a non-EU country where there is no Slovenian embassy, Slovenian citizens have the right to get consular protection from the embassy of any other EU country present in that country. Slovenian citizens can live and work in any country within the EU as a result of the right of free movement and residence granted in Article 21 of the EU Treaty.
Travel freedom of Slovenian citizens.
Visa requirements for Slovenian citizens are administrative entry restrictions by the authorities of other states placed on citizens of Slovenia. As of January 2019, Slovenian citizens had visa-free or visa-on-arrival access to 180 countries and territories, ranking the Slovenian passport 11th in the world according to the Visa Restrictions Index.
In 2017, the Slovenian nationality is ranked seventeenth in Nationality Index (QNI). This index differs from the Visa Restrictions Index, which focuses on external factors including travel freedom. The QNI considers, in addition, to travel freedom on internal factors such as peace & stability, economic strength, and human development as well.