What documents are needed to legally change your surname after a divorce is finalized in Ontario?

Ontario offers a simplified path for someone who wants to resume a surname they used before their marriage after a divorce, separate from the general Change of Name Act application process used for other kinds of name changes. This route is typically supported by proof of the divorce, such as the divorce certificate or final divorce order, along with proof of identity and, often, evidence of the surname previously used, such as a birth certificate.

Because this is a narrower, purpose-built process for resuming a former name after marriage breakdown, it generally involves less documentation and a more straightforward process than a full name change application, which is used for choosing an entirely new surname rather than reverting to a previous one. Anyone wanting a different outcome — for example, adopting a brand-new surname rather than reverting to a previous one — would use the standard Change of Name Act application instead. Since exact requirements can change, confirm the current requirements with the Office of the Registrar General before applying.