What Did Ontario Used to Be Called? Unpacking Canada's Largest Province's History
For many Americans, Canada is a familiar neighbor, a vast expanse of land stretching north of the contiguous United States. Within this northern nation, the province of Ontario stands out as its most populous and economically significant region, home to major cities like Toronto, Ottawa, and Hamilton. But for those curious about the historical tapestry of this influential province, a common question arises: What did Ontario used to be called?
The answer isn't a simple, single name change, but rather a fascinating evolution of administrative and geographical designations that reflect the changing political landscape of British North America. To truly understand what Ontario used to be called, we need to delve into the period following the British conquest of New France and the subsequent reorganization of colonial territories.
From French Claims to British Territories: The Early Days
Long before it was Ontario, the land that makes up the province was part of the vast territories claimed by France. As "New France," this region was essentially a broad swath of land encompassing much of eastern and central Canada, stretching from the Atlantic coast inland. However, the British victory in the Seven Years' War (known as the French and Indian War in North America) dramatically altered this situation. The Treaty of Paris in 1763 ceded much of New France to Great Britain.
Following this acquisition, the British administration began to establish its own governance structures. Initially, the newly acquired territories were grouped under different administrative arrangements.
The Royal Proclamation of 1763
One of the earliest significant documents that impacted the region was the Royal Proclamation of 1763. This proclamation aimed to organize the new British territories in North America. It established several new colonies, including the Province of Quebec. This new province encompassed a significant portion of what is now southern Quebec and southern Ontario. However, its western and northern boundaries were not precisely defined and extended into largely unsettled territories.
The Quebec Act of 1774
As settlement patterns evolved, particularly with the influx of Loyalists fleeing the American Revolution, the administrative needs of the region changed. The Quebec Act of 1774 was enacted to address these changes. While it is often associated with expanding the territory of Quebec, it also had a crucial indirect impact on the future of Ontario. The Act extended the boundaries of the Province of Quebec westward and southward, encompassing a much larger area. However, it also maintained French civil law and retained the Roman Catholic Church's rights, which caused dissatisfaction among the primarily English-speaking Protestant settlers.
The Crucial Division: Upper Canada Emerges
The growing differences between the French-speaking population in the east and the increasingly Anglophone population in the west, coupled with political pressures, led to a significant constitutional reform. This reform ultimately gave us the direct precursor to modern Ontario.
The Constitutional Act of 1791
The most pivotal moment in answering "What did Ontario used to be called?" comes with the Constitutional Act of 1791, also known as the Canada Act 1791. This act was a landmark piece of legislation that divided the existing Province of Quebec into two distinct colonies:
- Upper Canada: This new colony comprised the western part of the former Province of Quebec. It was primarily settled by English-speaking Loyalists and immigrants. Its administrative center was established at York (present-day Toronto).
- Lower Canada: This colony comprised the eastern part of the former Province of Quebec, where the majority of the population was French-speaking. Its capital was Quebec City.
Therefore, from 1791 until 1841, the land that is now Ontario was officially known as Upper Canada. This name reflected its geographical position upstream along the St. Lawrence River and Great Lakes waterway compared to Lower Canada.
Reunification and the Birth of Canada
The two Canadas, Upper and Lower, experienced periods of political instability and unrest. In response, the British government passed the Act of Union 1840, which came into effect in 1841. This act abolished both Upper Canada and Lower Canada and reunited them into a single political entity: the Province of Canada.
For nearly three decades, from 1841 to 1867, the western part of the Province of Canada was the territory we now recognize as Ontario, and the eastern part was the territory we now recognize as Quebec. However, the political and cultural differences between the two regions persisted within this unified structure.
Confederation and the Naming of Ontario
The desire for a more decentralized system and the need to address the political deadlock within the Province of Canada, along with other pressing issues like defense and economic development, led to the movement towards Canadian Confederation. On July 1, 1867, the British North America Act, 1867 (now known as the Constitution Act, 1867) came into effect. This act united three existing colonies—the Province of Canada (which was split back into Ontario and Quebec), Nova Scotia, and New Brunswick—into a new dominion: Canada.
At the time of Confederation, the western part of the former Province of Canada officially became the province of Ontario. The name "Ontario" is derived from an Iroquoian word, likely Mohawk or Huron, meaning "beautiful lake" or "sparkling water," referring to Lake Ontario.
"The adoption of the name 'Ontario' in 1867 marked a significant moment, distinguishing the distinct identity of the western portion of the former Province of Canada and solidifying its place within the newly formed Dominion of Canada."
So, while the most direct and significant answer to what Ontario used to be called is Upper Canada, it's important to remember its preceding administrative phases as part of the larger Province of Quebec and the even earlier French claims as New France.
Key Historical Designations Summarized:
- New France: The overarching French colonial territory that included the land.
- Province of Quebec (1763-1791): A large British administrative region that encompassed much of present-day Ontario and Quebec.
- Upper Canada (1791-1841): The specific western division of the Province of Quebec, established by the Constitutional Act of 1791. This is the most direct predecessor to modern Ontario.
- Province of Canada (1841-1867): The unified colony formed by the Act of Union, where the territory of Ontario was the western section.
- Ontario (1867-Present): The official name of the province upon Canada's Confederation.
Frequently Asked Questions (FAQ)
How did the name "Upper Canada" originate?
The name "Upper Canada" was chosen to distinguish it from "Lower Canada" due to their geographical positions along the St. Lawrence River and Great Lakes waterway. "Upper" referred to the upstream portion, moving away from the Atlantic coast and towards the interior of the continent.
Why was the Province of Quebec divided in 1791?
The division into Upper and Lower Canada was primarily to accommodate the growing English-speaking Loyalist population in the west, who had different legal, religious, and administrative expectations than the predominantly French-speaking population in the east. The Constitutional Act of 1791 aimed to provide separate governance structures for these distinct cultural groups.
Was Ontario always called "Ontario"?
No, "Ontario" is the official name given to the province upon its entry into Confederation in 1867. Before that, it was known as Upper Canada for a significant period, and prior to that, it was part of the larger Province of Quebec.

