
How to Change Your Child's Last Name

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You might want to change your child's last name for a number of reasons—after a divorce, when a new step-parent adopts them, or simply to correct a name that was recorded incorrectly at birth. Whatever the reason, the process involves legal steps that vary by state.
Here’s what you need to know about how to change your child’s last name.
Can you change a child’s last name?
Yes, you can generally change a child’s last name through a court petition. However, both biological parents (or legal guardians) typically must consent, or a court must find that a name change is in the best interest of the child. The process is more complex if one parent objects. Depending on the complexity of the situation, this kind of name change can be costly.
Common reasons for changing a child’s last name
- After divorce, a custodial parent wants the child to use their last name
- A stepparent is adopting the child and will share their name
- The biological father was not listed on the birth certificate, but paternity has since been established
- The child’s name was misspelled or recorded incorrectly on the birth certificate
- The parents want to give the child a hyphenated or combined last name
Steps to change a child’s last name
1. Get consent from both parents
In most cases, both parents must agree to the name change. If one parent objects, you’ll need to go to court and demonstrate that the name change serves the child’s best interests. Courts consider factors such as the child’s age and preference, the child’s relationship with each parent, and how a name change would affect them socially and emotionally.
2. File a petition with the court
You’ll need to file a Petition for Change of Name with the appropriate court in your county or state. Forms and filing fees vary by jurisdiction. In many states, the form can be found online through the court’s website.
3. Serve notice to the other parent
The other parent must typically be formally notified (served) with the petition and given an opportunity to respond. If you don’t know where the other parent is, there may be alternative service methods available.
4. Attend a court hearing (if required)
Some states require a court hearing; others will grant an uncontested name change without one. If the other parent contests the change, a hearing is typically required where a judge will decide.
5. Update records
Once the court approves the name change, you’ll need to update the child’s birth certificate, Social Security records, passport, school records, and any other official documents.
Special considerations
If the name change is part of an adoption process, the procedures may differ. Similarly, if the child is a teenager, many courts will consider the child’s own preferences in deciding whether to grant the name change.
How LegalShield can help
Changing a child’s name involves navigating court procedures that vary significantly by state. A LegalShield membership gives you access to provider lawyers who can help you understand the process in your state, prepare the paperwork, and advise you if the other parent objects.
Frequently Asked Questions
If the parental rights of one parent have been legally terminated, the other parent may change the child’s surname without permission. If the mother has sole physical custody, and paternal rights have not been established, the mother may change the child’s last name without permission. Otherwise, a judge can grant the name change without permission. If you’re wondering can I change my child’s last name on my own?—the answer is no, unless you meet the above criteria.
You get a decree from your state’s Superior Court, though the specific steps to take may vary from state to state. If you want information about changing your name back after divorce, what is needed to change your name, can you change your last name legally without getting married, or do you have to change your name after marriage?—see a lawyer who is well-versed in family law.
You will have to file a petition to terminate his parental rights, and in most cases, a citation to obtain a hearing date. See an experienced family lawyer before doing so.
Yes, if you have a signed decree from your state’s Superior Court that allows the change. If you are wondering can I change my kid’s last name on other ID documents, again, the answer is yes once you’ve obtained that signed decree.
No. This can happen when a child turns 18. If you want to know can you change a child’s last name?—the answer is yes, until they reach 18 years of age.
18 years of age.
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