Complete Guide 2026
Baby Name Laws in Spain
Spain is one of the most permissive countries in Europe when it comes to baby naming. There is no official list of approved names — instead, a small set of rules determines what the Registro Civil will accept or reject.
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How the Spanish naming system works
Spain's naming rules are governed by the Ley del Registro Civil (Civil Registry Law) and the Reglamento del Registro Civil. When you register your baby's birth at the Registro Civil (civil registry office), the registrar evaluates whether the name meets legal requirements.
Unlike Portugal or Iceland, Spain does not maintain an official whitelist of approved names. Instead, the system works on a principle of freedom with exceptions — almost anything goes, unless it violates one of a few specific rules. This makes Spain one of the most flexible countries in Europe for baby naming.
The registrar at the Registro Civil has the authority to reject a name on the spot. If you disagree with the decision, you can appeal to the Direccion General de los Registros y del Notariado (DGRN), which has issued hundreds of resolutions clarifying what is and isn't acceptable.
The rules: what Spain allows and doesn't
The name must not harm the child
Names that are objectively offensive, degrading, or could cause ridicule or social harm to the child are rejected. This is the primary and broadest rule.
Maximum two simple names or one compound name
Spanish law limits first names to two simple names (e.g. "Maria Carmen") or one compound name (e.g. "Juan Carlos"). You cannot register three or more first names.
Siblings cannot share the same name
Two living siblings cannot be registered with the same name, unless one has passed away. This prevents confusion in legal and administrative records.
Surnames used as first names may be restricted
A surname cannot be used as a first name unless it has an established tradition as a given name. For example, "Gonzalez" would be rejected, but "Martin" is accepted because it has centuries of use as a first name.
Foreign names are fully accepted
Spanish law explicitly allows names from any language or culture. "Yuki", "Mohammed", "Aoife", "Kai" — all are registrable as long as they don't violate the harm rule. This makes Spain especially welcoming for multicultural families.
No gender requirement
Unlike Germany or some other European countries, Spain does not require names to indicate the child's gender. Unisex names are perfectly acceptable.
Regional language names are protected
Names in Catalan, Basque (Euskera), Galician, Valencian, and other co-official languages are fully accepted. "Iker", "Aitana", "Biel", "Xoan" are registered without issue. Parents can also choose the regional spelling variant.
Famous rejected names in Spain
While Spain is permissive, registrars have drawn the line on several occasions:
Caca
Rejected — offensive meaning in Spanish
Judas
Rejected — harmful cultural associations
Mandarina
Rejected — not a recognized personal name
Hitler
Rejected — harmful to the child
Lobo
Approved — has precedent as a given name
Naira
Approved — accepted foreign origin name
Spain vs. other European countries
How does Spain compare to the rest of Europe? Here's a quick comparison:
| Feature | Spain | Portugal | Iceland | Germany |
|---|---|---|---|---|
| System | Permissive | Strict list | Committee | Case-by-case |
| Official list? | No | Yes | Yes | No |
| Foreign names | Allowed | Limited | Must fit grammar | Allowed |
| Gender rule | None | Required | Required | Relaxed |
| Max names | 2 | 2 | 3 | No limit |
Naming a baby in Spain as a foreigner
If you are a foreign national living in Spain, the same rules apply when registering at the Registro Civil. However, there are some additional considerations:
- Dual-nationality families can generally use names accepted in either parent's country of origin. If your name is common in your home country, bring documentation (a birth certificate or official name list) to support it.
- Spelling and accents — Spain uses the Spanish alphabet, which includes the letter n with tilde. You can register names with diacritics from other languages (umlauts, cedillas, etc.), though some registrars may need clarification.
- Surname order — In Spain, children traditionally receive two surnames (first the father's, then the mother's). Since 2017, parents can choose which surname goes first. This is separate from the first name rules but important to know.
Most popular baby names in Spain
According to the INE (Instituto Nacional de Estadistica), the most popular names in recent years include:
Boys
Martin, Hugo, Mateo, Leo, Daniel, Alejandro, Manuel, Pablo, Lucas, Alvaro, Adrian, Enzo, Mario, Diego, Oliver
Girls
Lucia, Sofia, Martina, Maria, Julia, Paula, Emma, Valeria, Olivia, Alba, Alma, Laia, Daniela, Noa, Carmen
Regional names: Catalan, Basque, and Galician
One of Spain's strengths is its full recognition of regional language names. This is constitutionally protected and has been reinforced through multiple DGRN resolutions:
Basque / Euskera
Iker, Ane, Unai, Ainhoa, Aitana, Eneko, Naia, Julen, Izaro, Oier
Catalan / Valencian
Biel, Laia, Pol, Ona, Arnau, Aina, Jan, Nil, Mar, Pau
Galician
Xoan, Brais, Antia, Uxia, Roi, Iria, Breogan, Sabela, Anxo, Noa
What to do if your name is rejected
If the registrar at the Registro Civil refuses your chosen name, you have the following options:
- Ask for the written reasoning — The registrar must explain which legal ground the rejection is based on. This is important for any appeal.
- Appeal to the DGRN — File a formal appeal with the Direccion General de los Registros y del Notariado. They review the case and issue a binding resolution. Many initially rejected names have been approved this way.
- Provide documentation — If the name exists in another culture, bring official documents (birth certificates, consular letters, or official name databases) proving its legitimacy as a first name.
- Court action — As a final resort, you can take the case to court, though this is rare given that the DGRN process is usually sufficient.
Legal basis
Spanish naming law is governed by Article 54 of the Ley del Registro Civil (Civil Registry Law, reformed in 2011 and updated in 2021), along with the Reglamento del Registro Civil. The key provisions establish freedom of naming with the specific restrictions listed above. The Direccion General de los Registros y del Notariado (DGRN) publishes resolutions that serve as case law, clarifying ambiguous situations and expanding the range of accepted names over time.
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Check a Name →Last updated: April 2026. This article is for informational purposes only. Always consult your local Registro Civil for definitive answers.