Lieutenant governor (Canada) in the context of "Executive Council (Canada)"

There are 12 monarchies in the Americas, being either sovereign states or self-governing territories that have a monarch as head of state. Each is a constitutional monarchy, wherein the monarch inherits his or her office according to law, usually keeping it until death or abdication, and is bound by laws and customs in the exercise of their powers. Ten of these monarchies are part of the global personal union known as the Commonwealth realms and share Charles III, who resides in the United Kingdom, as king. The other two are the Monarchy of the Netherlands which is used in states of the Dutch Caribbean, and the Monarchy of Denmark which is used in Greenland. As such, none of the monarchies in the Americas have a permanently residing monarch, though the Commonwealth realms each have a resident governor-general to represent King Charles III and perform most of his constitutional duties in his name; and a high commissioner represents the King of Denmark and the Danish government in Greenland. Additionally, each of Canada's 10 provinces functions as a subnational constituent monarchy, with the constitutional powers vested in the King exercised at the provincial level by a lieutenant governor.

Historically, some pre-Columbian societies existed under monarchical forms of government, while others had a decentralised collection of tribal regions under a hereditary chieftain. None of the contemporary monarchies, however, are descended from those pre-colonial royal systems, instead either having their historical roots in European monarchies which colonized the New World beginning in the 15th century.

The governor general of Canada (French: gouverneure générale du Canada) is the federal representative of the Canadian monarch, currently King Charles III. The monarch of Canada is also sovereign and head of state of 14 other Commonwealth realms and resides in the United Kingdom. The monarch, on the advice of his or her Canadian prime minister, appoints a governor general to administer the government of Canada in the monarch's name. The commission is for an indefinite period—known as serving at His Majesty's pleasure—usually five years. Since 1959, it has also been traditional to alternate between francophone and anglophone officeholders. The 30th and current governor general is Mary Simon, who was sworn in on 26 July 2021. An Inuk leader from Nunavik, Quebec, Simon is the first Indigenous person to hold the office.

As the sovereign's representative, the governor general carries out the day-to-day constitutional and ceremonial duties of the monarch. The constitutional duties include appointing lieutenant governors, Supreme Court justices, and senators; signing orders-in-council; summoning, proroguing, and dissolving the federal parliament; granting royal assent to bills; calling elections; and signing commissions for officers of the Canadian Armed Forces. The ceremonial duties include delivering the speech from the throne at the state opening of parliament; accepting letters of credence from incoming ambassadors; and distributing honours, decorations, and medals. Per the tenets of responsible government, the governor general acts almost always (except on the matter of honours) on the advice of the prime minister.

The orders, decorations, and medals of Canada comprise a complex system by which Canadians are honoured by the country's sovereign for actions or deeds that benefit their community or the country at large. Modelled on its British predecessor, the structure originated in the 1930s, but began to come to full fruition at the time of Canada's centennial in 1967, with the establishment of the Order of Canada, and has since grown in both size and scope to include dynastic and national orders, state, civil, and military decorations; and various campaign medals. The monarch in right of each Canadian province also issues distinct orders and medals to honour residents for work performed in just their province. The provincial honours, as with some of their national counterparts, grant the use of post-nominal letters and or supporters and other devices to be used on personal coats of arms.

The monarch is regarded as the fount of all honours—as the monarch is the only person who may create new national honours—and acts as the Sovereign of all of Canada's orders; he, or other members of the royal family, will conduct inductions or present medals. In Canada, the monarch is represented by the governor general, who also carries out investitures and distributes awards in the sovereign's name. As such, administration of the honours system is the responsibility of the Chancellery of Honours at Rideau Hall, which is a part of the Office of the Secretary to the Governor General of Canada. The governor general also sets out, via order-in-council, the order of precedence for the wearing of insignia, decorations, and medals. Provincial and territorial honours are similarly awarded by their respective lieutenant governors or commissioners.

The lieutenant governor of Ontario (/lɛfˈtɛnənt/, in French: Lieutenant-gouverneur (if male) or Lieutenante-gouverneure (if female) de l'Ontario) is the representative in Ontario of the monarch, who operates distinctly within the province but is also shared equally with the ten other jurisdictions of Canada. The lieutenant governor of Ontario is appointed in the same manner as the other provincial viceroys in Canada and is similarly tasked with carrying out most of the monarch's constitutional and ceremonial duties. The current lieutenant governor of Ontario is Edith Dumont, sworn in on November 14, 2023.

The lieutenant governor of Newfoundland and Labrador (/lɛfˈtɛnənt/) is the representative in Newfoundland and Labrador of the monarch, who operates distinctly within the province but is also shared equally with the ten other jurisdictions of Canada. The lieutenant governor of Newfoundland and Labrador is appointed in the same manner as the other provincial viceroys in Canada and is similarly tasked with carrying out most of the monarch's constitutional and ceremonial duties. The current, and 15th lieutenant governor of Newfoundland and Labrador is Joan Marie Aylward, who has served in the role since 14 November 2023.