Name Change in Chile

Changing a name or surname

Names in Chile are part of the civil registry, and they can only be changed in the cases the law allows. The main statute is Ley 17.344, which authorizes a change of first names, surnames or both, once, on listed grounds. The request is filed with the Juzgado de Letras en lo Civil of the applicant's domicile, with a lawyer.

The listed grounds include a name that is ridiculous or causes moral or material harm, having been known publicly by another name for more than five years for plausible reasons, certain filiation situations such as adding a missing surname, and translating or changing foreign names that are hard to pronounce or write in Spanish. A newer rule, Ley 21.334, lets adults invert the order of their surnames. Expect the process to require patience, because the court, the publication and the registry each add time.

What we handle

The court route, step by step

The petition explains the ground and gives the full registry details. The court asks the Registro Civil for the applicant's filiation record. An extract of the request is published in the Diario Oficial, and anyone with an interest has 30 days to oppose. If there is no opposition, the judge usually decides after hearing witnesses.

The change takes effect only when the judgment is recorded in the civil registry. The national ID number (RUT) does not change. Spouses and children may need their records adjusted in the same proceeding, so we plan for it.

Limits and what counts for foreigners

The law restricts name changes for people with pending criminal proceedings or certain convictions, and judges can refuse if there is a security risk or a risk of fraud. A change cannot be used to avoid obligations, and misuse is penalized.

Chilean courts act on Chilean civil registry entries. A foreign national's name is generally governed by the passport and the law of their own country, so a Chilean court is not the place to change it. It becomes relevant for naturalized citizens, for people born in Chile and for foreigners whose Chilean-born children carry a registered name. If your residence card name differs from your passport, that is usually an administrative matter with the migration authority.