If the parents are not married in Georgia, the mother alone decides whose last name the baby gets. An unmarried mother has sole custody of a child born outside marriage, and that custody includes filling in the child’s full legal name on the hospital birth certificate paperwork. She can give the baby her surname, the father’s surname, a hyphenated combination, or something unrelated to either parent. The father’s name will not appear on the certificate at all unless both parents sign a Voluntary Paternity Acknowledgment, and even then the surname written on the certificate is still whatever the mother puts on the worksheet.1Judicial Council of Georgia/Administrative Office of the Courts. Legitimation
That is the short answer. The longer answer matters because the choice made in the first few days after birth shapes legal rights, insurance enrollment, and federal benefits for years.
Why the Mother Controls the Name
Georgia law gives an unmarried mother sole legal custody at birth. There is no shared decision-making by default and no requirement that she consult the father about naming. When the hospital hands her the birth registration worksheet, she writes the first, middle, and last names she wants the state to record. If she leaves the father’s section blank, the state records the child as having no legal father.
The practical consequence reaches past the name. Without the father on the certificate, he has no standing to seek custody or visitation, and the child has no legal tie to him for inheritance, insurance eligibility, or government benefits.
How the Father’s Name Gets on the Birth Certificate
The quickest route is the Voluntary Paternity Acknowledgment, usually called a VPA. Georgia hospitals keep the form on hand, and both parents can sign it before the mother is discharged. Both must show valid photo ID and sign in front of a notary, swearing that the man signing is the biological father.2Justia. Georgia Code 19-7-46.1 – Effect of Fathers Name or Social Security Number on Records as Evidence of Paternity; Signed Voluntary Acknowledgment of Paternity Once signed and filed with the State Office of Vital Records within 30 days, the VPA is a legal determination of paternity.
Hospitals must submit birth registrations within five days, so signing before discharge is far simpler than catching up later. A VPA completed after the fact goes through Vital Records, and amending the birth certificate adds time and expense.
Here is where many fathers misunderstand what they have signed. A VPA establishes the biological father-child relationship and triggers child support obligations. It does not give the father the right to seek custody or visitation. Signing the birth certificate is not a legitimation.1Judicial Council of Georgia/Administrative Office of the Courts. Legitimation
The One-Year Voluntary Legitimation Add-On
For children under one year old, the VPA form includes an additional section, the Voluntary Acknowledgment of Legitimation. If both parents sign that section, the father gains full legal parent status, including the right to petition for custody and visitation.1Judicial Council of Georgia/Administrative Office of the Courts. Legitimation This is the only way to legitimate a child without filing a court case, and it is only available during the first year. Skipping that extra signature at the hospital is one of the most common and costly oversights unmarried fathers make in Georgia.
Getting the Father’s Surname onto the Certificate
Signing a VPA does not automatically give the baby the father’s last name. The mother still writes the name on the birth certificate worksheet. What the VPA does is make it possible for the father’s information to appear on the original certificate at all, which in turn makes it possible for the parents to agree that the child will carry his surname or a hyphenated version.
If both parents agree on the father’s surname, the mother writes that name on the worksheet and the certificate records it. If they disagree, the mother’s choice wins. The father has no veto at the hospital. His only recourse is a court proceeding, either a legitimation petition or a standalone name change petition.
If the Mother Won’t Agree: Legitimation in Court
Legitimation is a court action that puts the father-child relationship on the same legal footing as a marital one. Unlike a VPA, a legitimation order grants full legal parent status, including custody and visitation rights. For fathers past the first-year voluntary-legitimation window, court is the only path.
The father files the petition in the Superior Court of the county where the mother or the child’s legal guardian lives. If the mother lives outside Georgia or cannot be found after a reasonable search, the petition can be filed where the father or child lives. The petition must state the child’s name, age, and sex, along with the mother’s name, and if the father wants to change the child’s last name, the petition must state the desired new name.3Justia. Georgia Code 19-7-22 – Petition for Legitimation of Child; Requirement That Mother Be Named as a Party; Court Order; Effect
The mother must be named as a party and formally served. She can respond and be heard. The court evaluates a requested name change based on the child’s best interest, and a mother’s objection is part of that analysis. Legitimation itself, though, is a right the fit father can pursue over the mother’s objection.
Standalone Name Change After the Fact
If legitimation isn’t the chosen route, either parent can file a Petition for Name Change in the Superior Court of the county where the child lives.4Justia. Georgia Code 19-12-1 – Petition for Name Change; Request by Victim of Family Violence or Human Trafficking; Notice of Filing; Consent of Minors Parents or Guardian This changes only the child’s name. It has no effect on custody, visitation, or paternity.
The written consent of every living parent who has not abandoned the child must be filed with the petition.4Justia. Georgia Code 19-12-1 – Petition for Name Change; Request by Victim of Family Violence or Human Trafficking; Notice of Filing; Consent of Minors Parents or Guardian A parent who has not abandoned the child effectively holds a veto. The petition also requires publication of notice in the county’s legal newspaper once a week for four consecutive weeks, followed by a court hearing.
There is a wrinkle specific to unmarried families. A biological father who has never legitimated his child may not count as a legal “parent” under Georgia law. Because mothers hold sole custody of a child born outside marriage absent legitimation,1Judicial Council of Georgia/Administrative Office of the Courts. Legitimation an unlegitimated father likely has no consent right to block a name change. In practice, a mother can usually pursue a name change without him, while a father in the same posture would need to legitimate first before a name change petition will go anywhere.
Why the Name on the Certificate Matters Later
The name recorded on the Georgia birth certificate flows into federal systems quickly, and inconsistencies later are harder to clean up than most parents expect.
Social Security Card
The newborn’s Social Security number is usually requested through the hospital alongside the birth certificate, and the card is issued in whatever name the certificate shows. Changing it later requires original or certified copies of the legal name change document. Photocopies and notarized copies are not accepted.5Social Security Administration. Learn What Documents You Will Need to Get a Social Security Card If the change happened more than four years earlier, the SSA may also require an identity document in the child’s prior name.
Passport
A passport for a child under 16 normally requires both parents to appear or provide consent. When only one parent appears on the birth certificate, the applying parent must submit proof of sole legal custody, such as a court order, a birth certificate listing only one parent, or a death certificate for the other parent. If the other parent cannot be located, the application needs Form DS-5525 (Statement of Special Family Circumstances), and the State Department may ask for additional evidence like a custody or restraining order.6U.S. Department of State. Apply for a Childs Passport Under 16
Health Insurance
A birth triggers a special enrollment period of roughly 60 days to add the newborn to a health plan. Insurers adding the baby to an unmarried father’s coverage generally require proof of paternity, which usually means a birth certificate listing him or a signed VPA. A father whose name is not on the certificate and who has not established paternity may not be able to enroll the child at all. That window is short, which is another reason to settle the VPA at the hospital rather than afterward.
Social Security Survivor Benefits
If the father dies, the child can only draw survivor benefits if the SSA can verify the father-child relationship. The agency accepts a court paternity decree, a written acknowledgment made before the father’s death, or evidence that he was living with or supporting the child.7Social Security Administration. 404.355 Who Is the Insureds Natural Child? A VPA filed with Georgia Vital Records satisfies this. Without it, the surviving child of an unmarried father faces a difficult proof problem at the worst possible moment.