Wisconsin Name Change Laws: How to Legally Change Your Name

Wisconsin's name-change law lives in an unusual place in the code, chapter 786, filed under a probate and property title rather than the family law chapters most other states use. Adult and minor petitions both run through it, filed in circuit court, with mandatory newspaper publication as the default.

Wisconsin also has the strongest sex-offender restriction confirmed anywhere across this cluster's research: a reporting-status sex offender is outright prohibited from changing their name at all while their reporting duty is active, not merely subject to a heightened standard, and attempting it is a felony.

Information last verified on 2026-08-11. This article has not yet been reviewed by a licensed lawyer.

How to Legally Change Your Name in Wisconsin

An adult or a parent on behalf of a minor petitions in circuit court in the county of residence, under Wis. Stat. 786.36. Wisconsin residency is required, though no specific duration is spelled out in the sections read. Standard forms include CV-450 (Petition for Name Change, Adult or Minor 14 and Older), CV-451 (Petition for Confidential Name Change), CV-455 (Petition for Change of Name, Minor Under 14), and CV-470 (Order for Name Change), available through the Wisconsin Court System's self-help center.

There is no single confirmed statewide filing fee; Dodge County's published fee, $164.50, is a representative county example rather than an authoritative statewide figure. Confirm the exact amount with your circuit court clerk.

A licensed professional faces one additional, narrower restriction: 786.36(3) lets a state licensing board or commission block a name change if it would unfairly compete with or mislead the public, with specific exceptions for teachers and for changes driven by marriage or divorce.

Changing a Minor's Name

For a minor under 14 with both parents living, both parents ordinarily petition jointly, or a guardian or legal custodian petitions if parental rights have been terminated. A single parent may petition without the other parent's notice or consent if that other parent was convicted of one of roughly 25 enumerated violent or sexual offenses against a child (786.36(1m)(c)).

Where a single parent petitions under the general rule rather than that conviction exception, the nonpetitioning parent must be served notice in the same manner as a summons, in addition to publication (786.37(2)).

Restoring Your Name After Divorce

Wisconsin handles surname restoration inside the divorce case itself, not through a chapter 786 petition. Wis. Stat. 767.395 provides that, except as provided in s. 301.47, the court, upon granting a divorce, shall allow either spouse, upon request, to resume a former legal surname, if any. Because the statute says «shall allow», the request is granted as a matter of course when it is made in the divorce action, and it carries no Class 3 publication and no second filing fee.

The Wisconsin Court System's self-help center puts the practical point plainly: «a court order is typically not required if the divorce judgment provides that you can resume the use of your former last name.» With that judgment in hand, you obtain a certified copy and present it to the Social Security Administration and the DMV, the same administrative route used after a marriage.

The general 786.36 petition is the fallback rather than the default here. It is what you would use if the divorce judgment did not include the restoration, or if you want a name that is not a former legal surname.

Publication and the Confidential Alternative

A Class 3 notice under chapter 985 must be published before the court will hear the petition, stating the nature of the petition and the hearing's date and place (786.37(1)).

Wisconsin offers a genuine alternative to publication: a Petition for Confidential Name Change (CV-451) waives publication if the judge finds publication would endanger the petitioner and the change is not sought to avoid debt or conceal a criminal record (786.37(4)). Confidentiality protections for the resulting records are set out separately in 786.36(2m).

Restrictions: The Strongest Sex-Offender Bar in This Batch

Wisconsin's restriction structure works differently depending on who is asking. There is no general felony bar that stops an adult from petitioning on their own behalf. The enumerated-conviction list under 786.36(1m)(c) described above instead strips a nonpetitioning parent's notice and consent rights in a minor's case, rather than barring that parent from anything themselves.

For a reporting-status sex offender, the rule is categorical rather than discretionary: Wis. Stat. 301.47 makes it an outright prohibition to change your name, or to identify by an unregistered name, before your reporting requirement ends. This is stated plainly because it is easy to soften into generic «restrictions apply» language, and that would understate it: violating this ban is a Class H felony, with a lesser fine and imprisonment tier available for certain lower-level predicate offenses. Among the ten states in this batch, this is the strictest restriction confirmed, an outright ban independently backed by felony-level criminal exposure rather than a heightened court-review standard. The same 301.47 bar is written into the divorce-restoration statute, which restores a former surname «except as provided in s. 301.47».

Name Change After Marriage

Wisconsin has no statute dedicated to marriage-based name changes. A spouse who wants to adopt a new name at marriage does so administratively, presenting the marriage certificate to the Social Security Administration and the DMV rather than filing a court petition. For the federal-level steps involved, see name change after marriage.

Related Wisconsin Records

For the marriage certificate or divorce decree that may support a filing, see Wisconsin marriage and divorce records. For how the state's court system handles filings and case access generally, see Wisconsin court records. For the broader dissolution process, see Wisconsin divorce laws. For the full agency-by-agency update process once a change is granted, see the name change checklist and how to legally change your name.

Disclaimer

This article provides general information about Wisconsin name-change law. It is not legal advice and does not create an attorney-client relationship. Fees, forms, and publication requirements change; verify current details with your circuit court clerk or a licensed Wisconsin attorney before relying on anything here for a specific situation.

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Last updated: 2026-08-11. Fees and forms reflect their published status as of August 2026.