OTTAWA, Canada — Canadian political and Indigenous leaders have rejected President Donald Trump’s attempt to rename Lake Ontario “Lake America,” insisting that the centuries-old name will remain in use throughout Canada.
The rebuke followed Trump’s signing of an executive order on Thursday, August 27, 2026, directing United States federal agencies to adopt the new name on official maps, documents and communications.
Prime Minister Mark Carney said the name Lake Ontario predated both Canadian Confederation and the United States’ Declaration of Independence.
“The name Lake Ontario comes from the Wendat word Ontari’io, which, appropriately, means ‘the lake is beautiful, the lake is big,’” Carney wrote in a post on X.
“Canadian women and men also know that things must be called by their name, and this lake is called Lake Ontario — today and forever.”
Le nom du lac Ontario tire son origine du mot wendat « Ontari’io », qui signifie « le lac est beau, le lac est grand ».
Ce nom remonte à plus de 400 ans, bien avant la Confédération canadienne et la Déclaration d’indépendance des États-Unis d’Amérique.
Nous savons que les…
— Mark Carney (@MarkJCarney) August 27, 2026
Provincial Leaders Reject Renaming
Ontario Premier Doug Ford, whose province shares the lake with New York State, delivered a similarly firm response.
“It’s Lake Ontario to Canadians and the rest of the world. Now and forever,” Ford wrote on X. He also shared his response on Instagram.
It’s Lake Ontario to Canadians and the rest of the world. Now and forever.
— Doug Ford (@fordnation) August 27, 2026
Nova Scotia Premier Tim Houston described the change as unnecessary provocation.
“We’re into some real foolishness now. It’s Lake Ontario, buddy,” Houston said in posts on X and Instagram.
Canadian Industry Minister Mélanie Joly also said Canada would continue to recognise the waterway by its established name.
Wendat Leader Accuses Trump of Erasing History
Grand Chief Pierre Picard of the Wendat Nation in Quebec condemned the order as an attempt to disregard the Indigenous origins of the lake’s name.
“President Trump is trying to erase our history,” Picard said in a statement on Facebook.
He described himself as outraged and shocked by the decision, arguing that the name reflects the history, language and presence of Indigenous peoples in the region.
Lake Ontario’s name is derived from a Wendat expression commonly interpreted as meaning a beautiful or great lake. The name has appeared on maps for centuries and was in use long before the modern borders of Canada and the United States were established.
Canadian Records Remain Unchanged
Trump’s order applies only to the United States government and cannot compel Canada, international organisations, private mapmakers or other countries to recognise the new designation.
Canada’s official geographical database, maintained by Natural Resources Canada, continues to identify the body of water as Lake Ontario.
Approximately 52 per cent of the lake’s surface lies on the Canadian side of the international boundary, with the remainder bordering New York.
The United States order instructs the interior secretary and the US Board on Geographic Names to amend federal records and remove references to Lake Ontario where legally permissible. It does not alter the international boundary or Canada’s authority over its portion of the lake.
Trade Dispute Forms Backdrop
The controversy comes amid escalating trade tensions between Ottawa and Washington.
Negotiations between the two governments collapsed after the United States imposed tariffs of 50 per cent on about $20 billion worth of Canadian goods. Canada responded with duties on a similar value of American imports.
Trump had floated the proposed name change while criticising Canadian officials during the tariff dispute.
His executive order has now made “Lake America” the required name for US federal use, but Canada’s leaders have made clear that the designation will not be adopted north of the border.
