Birthactive
Brazilian citizenship by territorial birth
A person born in Brazil is generally Brazilian at birth, including a child of foreign parents, unless the parents are serving their country.
Sources: Constitution of Brazil — Article 12
Citizenship routes
Ancestryreviewed
Naturalizationreviewed
Birthreviewed
Investmentreviewed
Naturalizationactive
Naturalization as the spouse of a citizen
A foreigner with a Brazilian spouse or partner (or a Brazilian child) may naturalize after one year of residence, instead of four.
Sources: Constitution of Brazil — Article 12
Ancestryactive
Brazilian citizenship through a Brazilian parent
A child born abroad to a Brazilian parent can acquire Brazilian nationality through the constitutional service, consular-registration, or later residence-and-option rules.
Sources: Constitution of Brazil — Article 12
Naturalizationactive
Brazilian naturalization after residence
Ordinary naturalization generally requires four years of residence. The minimum falls to one year for a parent of a Brazilian child and for a person originating from a Portuguese-speaking country, subject to the remaining conditions.
Sources: Brazil Migration Law No. 13,445/2017 · Constitution of Brazil — Article 12 · Brazil Ministry of Justice — naturalization residence periods · Brazil Federal Police — family-reunification guidance