Ontario Name Change Process
Couples don’t have to legally change a last name (surname). But if they choose, they can understand how to do so through ServiceOntario and determine the differences between assuming a married name and legally changing a name after marriage.
If you wish to change your last name after marriage in Ontario, decide which of the two options for changing your last name work best for you. You can assume a new name, or you can opt for changing your name legally on your birth certificate.
Here are the two options as of July 21, 2021. See my blog post for the details!
For more details contact ServiceOntario by calling Toll-free: 1-800-461-2156 for all of North America (areas outside of Toronto), 416-325-8305 for the Greater Toronto Area or internationally; TTY: 416-325-3408; or sending a written request to: ServiceOntario Office of the Registrar General P.O. Box 3000 189 Red River Rd Thunder Bay, ON P7B 5WO