How to Legally Change Your Name in Ontario
Ontario's legal name change costs $137 through ServiceOntario under the Change of Name Act. You must be 16 or older and have lived in Ontario for at least 12 months.
A Yukon legal name change runs through the Office of the Registrar of Vital Statistics under the Change of Name Act. You must be 19 or older, or married, widowed, or divorced, a Canadian citizen or permanent resident, and resident in Yukon for the three months before you apply.
Applies in: Yukon
In Yukon, a legal name change is filed with the Office of the Registrar of Vital Statistics under the Change of Name Act. The [adult application package](<https://yukon.ca/sites/default/files/2025-06/Application for change of name of an adult.pdf>) sets the entry rules: you must be 19 or older, or married, widowed, or divorced, a Canadian citizen or permanent resident, and resident in Yukon for the three months right before you apply. You file the adult application form plus a required affidavit, in Whitehorse, at a community territorial agent office, or by mail, and applications are processed within six weeks.
This guide covers the process only. It gives no legal advice, and it does not decide whether you qualify. That decision sits with the Registrar.
Written November 13, 2026
The Registrar's applicant checklist for adults lists the criteria, and your application is considered only if you meet all of them:
An adult, for this application, is a person who is 19 years of age or older. The application itself is made under section 3 of the Change of Name Act and covers a change to your given name or names, your surname, or both. All parts of the application are mandatory, and incomplete applications will not be processed, so work from the checklist the Registrar publishes rather than from the form alone. The checklist is a working document: you do not have to submit it with your application, although you can if you wish.
A child has a separate application, made under sections 3 and 5 of the same Act, and a child means a person under 19. Do not file a child on the adult form.
The application form. Use the Application for Change of Name of an Adult. It asks for your current and proposed names and works through the registrations connected to your change, including your birth registration if you were born in Yukon.
The affidavit. Every change of name application must include the Affidavit of Qualification and Bona Fides. The affidavit confirms the applicant's eligibility and intent and is a required part of the application process. It can be completed free of charge at the Registrar's office in Whitehorse, which is a practical reason to file in person in Whitehorse if you live nearby: the affidavit step can be finished at the same counter where you drop off the package.
The checklist also calls for a copy of the front and back of one piece of valid government-issued photo identification. If the address on your identification does not match your present address, the checklist also calls for a copy of a recent utility bill, banking, or government correspondence in your name. Assemble the identification copy before you travel to file, because an incomplete package is not processed.
Completed applications can be:
Applications are processed within six weeks of being received. For questions about the checklist, the required documents, or the application itself, the office lists 867-667-5207, toll-free at 1-800-661-0408, extension 5207, and vital.statistics@yukon.ca.
Yukon's published material ties its figures to the registrations rather than to a single application price, so read the numbers in that frame:
A replacement certificate is a separate, smaller transaction. A certificate of change of name ordered later costs $10, processing can take up to 10 business days, and if no record is found the $10 fee is kept to cover administrative costs. The certificate confirms your previous name, your new legal name, and the date your name changed, and it is the document used to update identification, financial records, and other official documents.
Section 12 of the Change of Name Act, reproduced in the excerpts at the back of the adult application package, says that when a change of the legal name of a person has been registered under section 9, the registrar shall cause the prescribed notice of the change of name to be published in the Yukon Gazette. That wording is general: it covers a registered adult change, not only a child's. The child application package spells out one consequence in its own context: if you do not want your child's name published in the Yukon Gazette, you will need to obtain a court order before submitting the application. The adult package's excerpts do not state a court-order exemption for adults, so anyone with a safety or privacy concern should raise publication with the Registrar's office at the start, before the application is filed, rather than assuming the child-package wording carries over.
On approval, the certificate of change of name is your proof document. You receive one original at no cost when your application is approved, and certified copies are free, which makes it cheap to hold copies for the institutions that ask for one. Use the certificate to update identification first, then financial records and other official documents, the same list the Registrar gives for the certificate's purpose. If you ordered new birth certificates at $10 each to match the amended birth registration, keep them with the certificate; together they show both the change and the current registration.
The Yukon pages and forms opened for this guide state the eligibility rules, the six-week processing time, the $50 birth registration fee, the $10 certificate price, and the $1 birth registration search, but they do not state a single standalone application fee for the change of name itself apart from those registration and certificate figures, so this guide does not present one. The adult form's own fee table does list one further figure, $17.50 for each concurrent change of name for an additional family member, and it is carried in the fees section above. The forms also do not state whether any fee is refunded if an application is refused, so this guide does not claim either way.
You must meet all of the criteria on the Registrar's checklist: you are 19 years of age or older or married, widowed, or divorced; you are a Canadian citizen or permanent resident; you are a resident of Yukon; and you have resided in Yukon for the three months immediately preceding the date of your application.
The Application for Change of Name of an Adult, made under section 3 of the Change of Name Act, and the Affidavit of Qualification and Bona Fides. The affidavit must be included with all change of name applications, confirms your eligibility and intent, and can be completed free of charge at the Registrar's office in Whitehorse.
By mail to the Registrar's office, Box 2703, Whitehorse, Yukon Y1A 2C6, or in person at 204 Lambert Street in Whitehorse, on the fourth floor, or at a local community territorial agent office. Questions go to 867-667-5207, toll-free at 1-800-661-0408, extension 5207, or vital.statistics@yukon.ca.
Applications are processed within six weeks of being received by the Registrar's office. If the registrar accepts the application, a certificate of change of name is issued. You receive one original certificate of change of name and as many certified copies as you wish, and all certified copies are free.
Yes. Section 12 of the Change of Name Act, reproduced in the excerpts at the back of the adult application package, says that when a change of name has been registered, the registrar shall cause the prescribed notice of the change to be published in the Yukon Gazette. The child application package states the related point for a child's name: if you do not want the name published, you need to obtain a court order before submitting the application. The adult package does not state that court-order route, so raise publication with the Registrar's office when you apply if it is a concern.
The application form states a $50 fee to change your name on your birth registration, and new birth certificates are $10 each. If you were born in Yukon, do not have a birth certificate, and want a search conducted to verify your birth registration, the form puts that search at $1. Fees are waived if you are applying to reclaim First Nation, Inuit, or Métis ancestry.