8 Countries Where Children Can Legally Take Their Mother’s Surname First

Culture
By A.M. Murrow

In many parts of the world, children automatically receive their father’s surname, but that tradition is changing. Several countries have updated their laws to give parents the freedom to choose which surname comes first.

This shift reflects a growing recognition of equal parental rights and modern family values. Here is a look at eight countries where children can legally carry their mother’s surname first.

1. Spain

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Spain has been quietly reshaping how families pass down names for over two decades. Since 1999, Spanish parents have had the legal right to choose the order of their children’s surnames.

That means a child can carry the mother’s surname before the father’s, which was once unheard of in traditional Spanish culture.

The law took another meaningful step forward in 2017. Before that update, if parents could not agree on surname order, the father’s name automatically came first.

The 2017 reform handed that decision to a civil registrar instead, removing the built-in preference for paternal surnames.

Spain uses a two-surname system, so children receive one surname from each parent. The order of those surnames now reflects a mutual decision rather than a legal default.

This change has encouraged more families to honor the mother’s family name in an equal and formal way.

2. Portugal

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Portugal follows a similar naming tradition to Spain, where children typically receive two surnames, one from each parent. Portuguese law gives parents the freedom to decide which surname appears first on official documents.

That means the mother’s surname can legally come before the father’s if the parents choose that arrangement.

This flexibility reflects Portugal’s broader commitment to gender equality within family law. Rather than enforcing a strict paternal-first rule, the system trusts parents to make that call together.

Many families have embraced this option as a way to honor both sides of a child’s heritage equally.

Portugal’s approach is straightforward and practical. Parents simply declare their preference at the time of birth registration.

The process does not require special legal filings or court approval, making it accessible for all families regardless of their background or location within the country.

3. Brazil

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Brazil has a rich and flexible approach to family surnames that stands out in Latin America. Brazilian law allows parents to choose the order of surnames when registering a child’s birth.

As a result, many Brazilian children carry the mother’s surname ahead of the father’s, which has become increasingly common in recent decades.

This practice reflects the country’s evolving attitudes toward family identity and maternal recognition. In Brazil, surnames are often seen as a way to celebrate both family lines, not just the paternal one.

Parents frequently opt to place the mother’s name first as a gesture of pride and connection to her family’s history.

Interestingly, Brazil also permits children to carry surnames from both maternal and paternal grandparents in some cases. The system is one of the more flexible in the world, giving Brazilian families real power to shape how their children’s identities are recorded officially.

4. Mexico

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Mexico’s legal reforms around surname order represent a significant cultural shift in a country with deep-rooted patriarchal traditions. Following legislative changes, Mexican parents now have the right to choose whether the mother’s or father’s surname comes first when registering their child’s name.

This update gave families a voice that many had long been denied.

Before these reforms, the father’s surname automatically took the lead, which was the unquestioned norm for generations. The change sparked public conversation about gender equality and what it means to honor both parents equally in a child’s identity.

For many mothers, seeing their surname listed first carries deep personal significance.

The reform has been welcomed by family rights advocates across the country. While traditional naming practices still dominate in many regions, the legal option is now firmly in place.

Mexican families in urban and rural areas alike can take advantage of this updated right.

5. Argentina

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Argentina has embraced a modern approach to family naming that puts parents in the driver’s seat. Argentine law allows parents to choose the order of surnames for their children, meaning the mother’s surname can legally appear before the father’s.

This right is part of Argentina’s broader legal framework supporting gender equality and parental autonomy.

The change was welcomed by many families who felt the old automatic paternal-first rule did not reflect their values. Argentina has been a regional leader in progressive family legislation, and the surname reform fits naturally within that history.

Parents who want to honor the maternal family line now have a clear legal path to do so.

Registration is handled at local civil registry offices, and the process is relatively simple. Both parents agree on the surname order at the time of birth registration.

The flexibility has given Argentine families a meaningful way to express shared identity from the very start of a child’s life.

6. Uruguay

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Uruguay may be a small country, but it has made big strides in family law. Parents in Uruguay are legally permitted to choose the order of their children’s surnames, giving the mother’s name an equal shot at coming first.

This right is consistent with Uruguay’s long-standing reputation as one of Latin America’s most progressive nations.

Uruguay was among the first countries in the region to legalize same-sex marriage and adopt other family-forward legislation. The surname choice rule fits right into that tradition of treating all parents with equal legal standing.

Families who want their child to reflect the maternal heritage first can do so without any extra legal hurdles.

The registration process is handled through Uruguay’s civil registry system, and parents simply state their preference when the child is born. For many Uruguayan families, this small but meaningful choice carries a lot of emotional weight, especially for mothers who want their family name to live on.

7. Chile

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Chile made history in 2022 when it officially gave parents the right to choose which surname comes first for their children. Before this landmark change, Chilean law required the father’s surname to appear before the mother’s, with no exceptions.

The 2022 reform ended that requirement and opened the door to genuine parental equality in naming.

The change was years in the making and came after sustained advocacy from gender equality groups and legal reformers. Many Chilean mothers celebrated the news as a recognition of their equal role in their children’s lives and identities.

For a country with strong Catholic and traditional family values, this was a notable cultural shift.

Families registering a child’s birth in Chile after 2022 can now declare their preferred surname order at the civil registry. If parents cannot agree, there is a process in place to resolve the matter.

The reform has been widely praised as a step toward a more balanced and fair family law system.

8. Colombia

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Colombia joined a growing list of Latin American countries in 2021 when it passed a law allowing parents to choose the order of their children’s surnames. The reform was a clear signal that the country was moving toward a more equitable approach to family law.

Prior to this change, the father’s surname always came first by default.

The 2021 update was celebrated by women’s rights organizations and family advocates who had pushed for the change for years. For Colombian mothers, the ability to place their surname first is not just a legal technicality.

It represents recognition, pride, and a connection to their own family’s history that can now be passed on officially.

Registering a child’s name under the new rules is handled through Colombia’s civil registry system. Parents work together to declare their preferred surname order.

The law has brought Colombia in line with several of its regional neighbors and reflects a meaningful commitment to shared parental identity.