The information presented here is a summary of the basic rules determining who is entitled to be attributed the Portuguese Nationality or who can acquire Portuguese Nationality, in accordance to Portuguese Nationality Law 37/81, of 3rd of October and the relevant revisions of that law and all additional legislation on the subject.
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Attribution of Portuguese Nationality
INDIVIDUALS OF PORTUGUESE MOTHER OR PORTUGUESE FATHER BORN OUTSIDE PORTUGAL:
Individuals of Portuguese mother or Portuguese father are Portuguese citizens of Origin if they register their birth with the Portuguese Civil Registry Office or if they declare their wish to be Portuguese citizens.
Who is eligible?
• Underage individuals, children of Portuguese mother or Portuguese father, born outside Portugal;
• Adults aged 18 years or more, direct descendents of Portuguese mother or Portuguese father, born outside Portugal, who can submit documentary evidence that the relationship with the Portuguese mother or Portuguese father was established under the age of 18 years old. Usually, this can be easily confirmed by the date of registration of birth in the birth certificate.