11155E Fillable Form: Application to Change an Adult's Name (Ontario)

One application, seven parts

Form 11155E is the Ontario application that legally changes the name of a person who is 16 or older and has lived in Ontario for at least the last 12 months. It goes to the Office of the Registrar General in Thunder Bay. When the change is approved you get a change of name certificate, and if you were born in Ontario, a new birth certificate in the new name.

The current edition, 11155E (2026/05), runs to 21 pages: four pages of instructions and addresses, then Parts 1 to 7 numbered as 17 pages. Not every part applies to everyone, but the Registrar General asks for every page to be sent back, so the document you receive from us keeps all 21 pages in the official order.

Who fills in which part

Married or in a common-law union: the Notice

If you are married, or separated but not divorced, the Change of Name Act requires you to give notice to your spouse. The same applies if you once signed a Joint Declaration of Conjugal Relationship and never revoked it. Part 2 is that notice: you fill in the top half, and your spouse or partner signs the acknowledgement at the bottom.

Notice does not mean permission, and the acknowledgement is not sworn, so your spouse does not come to the video call. Our form prints your part of the notice; your spouse signs the acknowledgement at home. If they will not sign, you send the notice by registered mail and include the receipt with your application.

The guarantor and the 12 months in Ontario

Part 4 proves that you have been ordinarily resident in Ontario for at least 12 months. A guarantor signs it: someone from the list printed on the form, such as a lawyer, a physician, a school principal, a bank manager or a municipal clerk. If you cannot find one, the form allows a person who is not a relative and has known you for at least five years.

The guarantor statement is not sworn, so the guarantor does not need to come to the call. You print the page we send you and the guarantor completes and signs the bottom half by hand. Your name at the top is already filled in.

Answers that cause delays

1. A current name that does not match the birth certificate. Part 1 asks for your legal name now. If you use a married name that was never registered, read the notes in Part 5 before you start.
2. Reasons left vague. Section C asks for all the reasons. A short, honest explanation is enough, but it should be complete.
3. A Yes in section D without the police check. Answering Yes to questions 2 to 5 means you also send an original police record check of the right type.
4. Missing initials. The statutory declaration has a box for your initials. You add them on the video call, together with your signature.
5. Translations without a declaration. Documents in other languages need a translation and a translator's declaration. A non-professional translator swears it before a commissioner, which can be added to the same booking.

What you send and what you get back

Mail the signed application, the original certificates listed in Part 5, any notice or consent forms, the police check if needed, and the fee of $137 for an adult name change, payable to the Minister of Finance. Fees can change, so check the amount printed on Part 7 before you pay. Unless an exception applies, the change is published in The Ontario Gazette.

Signing 11155E by video

Press Book and Sign and the completed application is attached to your appointment. On the call the commissioner checks your photo ID, you initial the box and sign the statutory declaration on screen, and the commissioner completes the "Declared before me" section. If a Notice is needed, you sign your part of it on the same call. The signed PDF is emailed to you to print, add the guarantor page, and mail.