Be born in Portugal to at least one Portuguese parent
Be born in Portugal and meet legal conditions for nationality by birth
Have a Portuguese parent and register your birth
Have a Portuguese grandparent and meet eligibility rules
Marry or enter a legal partnership with a Portuguese citizen and meet residency or connection requirements
Live legally in Portugal for the required period and apply for naturalization
Prove sufficient knowledge of Portuguese
Prove no serious criminal record
Show effective ties to the Portuguese community when required
Be a minor or dependent child of a Portuguese citizen and apply through family nationality rules
Be adopted by a Portuguese citizen under legal conditions
Recover Portuguese nationality if you previously lost it or were entitled to it
Submit the application to the Portuguese civil registry or competent authority
Provide required documents such as identity, birth certificate, residence proof, and criminal record certificates
Pay the applicable fees
Wait for the nationality decision and registration of citizenship