Retired Supreme Court justice Louise Arbour will be sworn in as Canada's next governor general on June 8, 2026 [1].

The appointment marks a transition in the viceregal office as Arbour succeeds Mary Simon. The selection of a former jurist brings a high level of legal expertise to the role of the crown's representative in Canada.

Prime Minister Mark Carney selected Arbour for the position, as confirmed by officials in Ottawa on Tuesday, May 7 [2]. Arbour, who is 79 years old [3], will become the 31st person to hold the office of governor general [3].

The swearing-in ceremony is scheduled to take place in Ottawa [4]. This transition follows the tenure of Mary Simon, who made history in 2021 as Canada's first Indigenous viceregal representative [5].

Arbour's background as a retired Supreme Court justice provides a foundation of constitutional knowledge. The governor general serves as the formal head of state in Canada, performing ceremonial duties, and granting royal assent to bills passed by Parliament.

Government officials said the installation date is set for June 8 [1]. The process of selecting a governor general involves the prime minister recommending a candidate to the monarch for formal appointment.

As a retired justice, Arbour has spent decades navigating the complexities of the Canadian legal system. Her appointment suggests a focus on stability and legal precision during this new chapter of the viceregal office.

“Louise Arbour will become the 31st person to hold the office of governor general”

The appointment of Louise Arbour represents a shift from the historic Indigenous representation of Mary Simon back to a candidate with deep roots in the judicial establishment. By selecting a former Supreme Court justice, Prime Minister Mark Carney emphasizes legal scholarship and constitutional authority in the role of the governor general.