IrelandI want to change my child's surname. Do I need consent?
Yes, you generally need the consent of all guardians of the child to change their surname in Ireland. If consent is refused, you must apply to the Circuit Court for permission.
What the Law Says
The Guardianship of Infants Act 1964 governs changes to a child’s surname in Ireland. Section 11 gives the Circuit Court authority to make decisions about a child’s name when guardians disagree or when consent cannot be obtained.
Under Irish law, a child’s surname is part of their identity and legal status. Any change — whether by deed poll, registration, or informal use — that seeks to replace the child’s existing surname requires the agreement of every person who has guardianship rights.
If one guardian refuses consent, the other cannot unilaterally change the child’s surname. Instead, the matter must be brought before the Circuit Court, which will decide based on the child’s best interests.
The court does not automatically grant permission — it must be satisfied that the change serves the welfare of the child, considering factors like family connection, potential confusion, and the child’s wishes (if age-appropriate).
Statutory TextThe Circuit Court shall have jurisdiction to determine all questions relating to the custody of, or access to, an infant and to give such directions as it may consider proper concerning the infant’s upbringing, education, health, welfare and general well-being, including the power to direct that the infant’s name be changed.
— Guardianship of Infants Act 1964, s. 11 — Jurisdiction of Circuit Court
What to Do
Confirm who the legal guardians are — usually both parents if married, or mother plus father if he has acquired guardianship via agreement or court order.
Seek written consent from all guardians before taking any formal step to change the surname.
If consent is refused or cannot be obtained, file an application in the Circuit Court using Form 55A (Application re: Guardianship, Custody or Access) and include evidence supporting why the change is in the child’s best interests.
Attend the hearing and be prepared to explain how the name change benefits the child’s welfare, identity, and daily life.
Sources
Not legal advice. This article is general information based on publicly available sources, written for educational purposes. Laws change and individual situations vary. Consult a licensed attorney in your jurisdiction before acting on anything you read here. Last reviewed: 2026-06-08.