Italy citizenship: grandfather naturalized after your parent's birth

If your Italian grandfather became a US citizen only after your parent was born, the chain stayed intact and citizenship likely passed down — the naturalization date is the decisive fact.

What you'll need

Government fee: ~€600 consulate appointment (locked USD rates vary by consulate)
Typical timeline: Consular 18 months–3 years incl. appointment wait; 1948 judicial ~12–24 months
Where: Your Italian consulate (by residence), or the Court of Rome for 1948 cases

Whether this line carries citizenship depends on the specifics — dates of birth, naturalization timing, and whether the chain was ever broken. The free eligibility check walks your exact line and tells you which route applies and what documents you'll need.

Required documents Cost calculator

Other ancestor paths

Through your father Through your paternal grandfather Through your paternal grandmother Through your maternal grandmother Through your paternal great-grandfather Through your maternal great-grandfather Through your paternal great-great-grandfather Through an adopted ancestor Mother born before 1948

See if you qualify for Italy citizenship

Check your eligibility — free

Not affiliated with Consulates / Tribunal of Rome or any government. A document-organization tool, not legal advice — always verify with the relevant authority.