イタリアの国籍を取得する方法

Person has been the spouse of a citizen for 3 years. If person has been resident in Italy for 2 years, 3 years of marriage is not required. The provision applies also to foreign citizens who established a same-sex civil partnership with italian citizens. Other conditions: no serious crimes, no threat to security of Italy, certified knowledge of the Italian language at a level no lower than B1 of the 'Common reference framework for knowledge of languages'.

血統（国内出生）

Person is born in Italy to a citizen.

血統（国外出生）

Person is born abroad to a citizen.

Person is born in Italy and has resided there legally and without interruption since birth until the age of majority.

person declares the wish to acquire Italian citizenship within a year of the age of majority.Person has been resident in Italy for 3 years (discretionary)

Person is a minor who resides with a parent who is acquiring citizenship. Person can renounce acquired citizenship after coming of legal age, if in possession of other citizenship (see L01)

Person is a minor who is adopted by a citizen.

Person is an adult who is adopted by a citizen and has been resident in Italy for 5 years. Other conditions: see the rules for ordinary naturalisation.

Person is the child or grandchild of someone who was a citizen by birth and the person has been resident in Italy for 3 years. Other conditions: see the rules for ordinary naturalisation.

Person is the child or grandchild of someone who was a citizen by birth and the person has done military or civil service for Italy, in the country or abroad, or is 18 years and has been resident in Italy for 2 years before the age of 18.

Person is a former citizen and has done military service in Italy, or takes up residence in Italy or establishes it within 1 year of the declaration, or lost citizenship because of civil or military service in another country, leaves that position and has been resident in Italy for 2 years.

Person has been resident in Italy for 1 year (person can refuse by declaration).

Person is a citizen of an EU Member State and has been resident in Italy for 4 years. Other conditions: see the rules for ordinary naturalisation.

Person is a former Italian citizen (a) or a descendant in a straight line (b) residing in a State in the territories belonging to Italy transferred to the Yugoslav Republic under the signed Peace Treaty in Paris on 10 February 1947 or by virtue of the Treaty of Osimo of 10 November 1975. Other conditions: person provides proof of knowing Italian language and culture .

Person is a recognised refugee and has been resident in Italy for 5 years. Other conditions: see the rules for ordinary naturalisation.

棄児

Person is found in Italy of unknown parentage.

他の方法では無国籍となる場合（国内出生）

Person is born in Italy to parents who are unknown or stateless, or is not entitled to citizenship of the parents' country.

無国籍者

Person is stateless and has been resident in Italy for 5 years. Other conditions: see the rules for ordinary naturalisation.

Person has rendered distinguished services to Italy or the acquisition of citizenship would serve outstanding public interests.

Person has been in civil service for Italy, in the country or abroad, for 5 years. Other conditions: see the rules for ordinary naturalisation. See also the rules for reacquisition.