U.S. President Donald Trump has ordered the renaming of Lake Ontario to "Lake America" amid escalating trade tensions with Canada. On August 29, Trump signed an executive order directing the U.S. Department of the Interior to update official geographic references to reflect the new name within 30 days. The move follows the United States’ recent imposition of 50% tariffs on $20 billion worth of Canadian goods after bilateral trade talks broke down. Canada responded by levying retaliatory tariffs on a similar value of U.S. products, including steel, dairy, appliances, and farm equipment.
Trump made the announcement from the Oval Office, where a map displayed behind him showed the Great Lakes with Lake Ontario labeled as "Lake America." He justified the change by citing that the deepest portion of the lake lies on the U.S. side, asserting that the United States "claims most of the Lake’s volume." The president indicated the renaming was effective immediately, although the executive order stipulates the modification will formally occur within 30 days. This action continues a pattern during Trump’s second term of unilaterally changing geographic names, reminiscent of his 2025 attempt to rebrand the Gulf of Mexico as the Gulf of America, a move rejected by Mexico.
The renaming order has drawn swift and firm criticism from Canadian officials. Prime Minister Mark Carney rejected the change, emphasizing the lake’s Indigenous roots and historical significance. Carney noted the name "Lake Ontario" is over 400 years old, predating the United States and Canada, and derives from an Indigenous term meaning "the lake is beautiful, the lake is big." He affirmed that Canadians would continue to call the body of water by its traditional name "then, now and always." Ontario Premier Doug Ford and Nova Scotia Premier Tim Houston also dismissed the rename as misguided, with Ford reiterating the lake’s established identity to Canadians and the world.
Public reaction on both sides of the border has been largely critical of Trump’s actions. In Toronto, residents uniformly criticized the move as provocative and unproductive. Some described it as bullying or an attempt to antagonize, while others said it reflected poorly on the president. The name change order is seen by some analysts as part of Trump’s wider confrontational approach toward allies, including previous comments about absorbing Canada as a 51st state and territorial claims on Greenland and Venezuela.
The renaming of Lake Ontario, which straddles the border between the Canadian province of Ontario and the U.S. state of New York, is part of a broader trade dispute that has strained long-standing relations between the two countries. As of now, Canada has no plans to recognize the new name, and the dispute continues to fuel diplomatic tensions.