One must be a Yukon resident to do a change of name in the Yukon Territory.

An application shall be made to the registrar in the prescribed form and shall include:

1. the present and proposed names in full,
2. the present address and previous addresses for the three month immediately preceding the application of the applicant and the person whose name is proposed to be changed,
3. the reason for the proposed change of name and
4. the date and place of birth of the person whose name is proposed to be changed.

An application shall be accompanied by:

1. any consent, notice or court order required under this Act,
2. an affidavit of qualification signed by the applicant, and
3. such other fees, evidence or documents as may be prescribed in the regulations.

Persons applying for changes of his or her legal name where:

1. the person is at least 19 years of age or married, widowed or divorced, and
2. the person is ordinarily resident in the Yukon and has actually resided in the Yukon for the three months immediately preceding the date on which the application is received by the registrar.

Subject to the other provisions of this section, any of the following persons who have lawful custody of an unmarried child may apply to the registrar for a change of the legal name of the child: the mother, the father, a person appointed pursuant to the Children's Act to exercise the rights of custody.

A change of surname under this section shall be restricted to the surname of the mother, father, or a person appointed to exercise the rights of custody.

A change of a child's surname shall be restricted to the surname of the mother, father, or of any person having lawful custody or a hyphenated surname consisting of two of the surnames of persons named above.

Where a surname of another person is different from the applicants, consent of that person is required and when the change is deleting another name, consent must be given unless that person does not have custody of the child, is not contributing to the support of the child, and has severed his or her relationship with the child. An application shall be accompanied by the written consent of every other person who has lawful custody of the child or is lawfully entitled to access to the child.