Louise Arbour was installed as the 31st [1] Governor General of Canada during a ceremony in Ottawa on June 8, 2026 [3].

The appointment places a former Supreme Court Justice in the role of the British monarch's representative in Canada. Arbour succeeds Mary Simon in the position, bringing a career of high-level judicial and international legal experience to the vice-regal office.

The installation took place on the floor of the Canadian Senate [2]. During the event, Prime Minister Mark Carney said remarks addressing Arbour as she assumed her new duties [4].

Arbour, 79 [2], is the first person to hold the office since the departure of the previous Governor General. The ceremony marks a formal transition of constitutional authority within the Canadian government.

The proceedings were attended by government officials and dignitaries who gathered in the Senate chamber to witness the swearing-in. Carney said on behalf of the country to welcome Arbour to the role [4].

As the 31st [1] Governor General, Arbour will perform ceremonial duties and constitutional functions. Her background as a retired justice provides a legal lens to the office's responsibilities, a transition that occurred on Monday [3].

Louise Arbour was installed as the 31st Governor General of Canada

The appointment of Louise Arbour, a retired Supreme Court Justice, signals a preference for legal expertise and judicial temperament in the role of Governor General. By selecting a figure with extensive experience in international law and domestic jurisprudence, the Canadian government ensures that the representative of the Crown possesses a deep understanding of the constitutional framework they are tasked to uphold.