Trump orders Lake Ontario renamed Lake America amid US-Canada trade war

President Trump signed an executive order on Thursday to rename Lake Ontario to Lake America, escalating tensions with Canada just days after trade negotiations between the two countries collapsed. The move came as the US imposed 50% tariffs on $20 billion worth of Canadian goods, prompting Canada to announce matching counter-tariffs to take effect next month. Trump has been signaling the lake renaming on social media for weeks, and he framed the order as official and immediately effective, claiming his administration had filed all necessary paperwork with federal authorities.

The executive order directs the US Department of the Interior to update the name change with the Geographic Names Information Service, the official repository for domestic geographic names in the United States, within 30 days. Trump acknowledged during the signing that the move was not directly aimed at Canada, but he did not hesitate to invoke the trade dispute, saying the country "has been ripping us off for a long time on trade." He suggested the renaming was part of a broader pattern, musing that the administration might eventually rename the Atlantic and Pacific oceans as well. "So if you think about it, we have a gulf and we have a lake," he said. "Now, all we need is an ocean."

This is not Trump's first attempt to rename a shared body of water. In 2025, he signed a similar order changing the Gulf of Mexico to the Gulf of America. That move sparked a legal dispute with Mexico, which rejected the unilateral name change, and led to a confrontation with Google over how the company displayed the gulf's name on its maps. The company ultimately settled on showing "Gulf of America" to US users while displaying "Gulf of Mexico" to those in Mexico and other countries. The White House also blocked Associated Press reporters from presidential events over the news agency's refusal to adopt the new name, triggering a lawsuit that remains ongoing.

Canadian officials responded with swift and unified rejection. Prime Minister Mark Carney pointed out that Lake Ontario's name has been in use for more than 400 years, predating both Canadian Confederation and the US Declaration of Independence. "We know that the United States is changing," he wrote on social media. "Their trade relations, their foreign policy, their national monuments, their hydronyms. Canadian women and men also know that things must be called by their name, and this lake is called Lake Ontario – today and forever." Ontario Premier Doug Ford and Nova Scotia Premier Tim Houston issued their own statements, with Ford declaring the lake would remain Lake Ontario "to Canadians and the rest of the world. Now and forever," and Houston calling the effort "real foolishness." Industry Minister Melanie Joly said simply, "We'll always call it Lake Ontario."

Lake Ontario is the smallest of the five Great Lakes and borders both New York State and the Canadian province of Ontario. Four of the Great Lakes—Ontario, Huron, Michigan, and Erie—derive their names from indigenous words, while Lake Superior takes its name from an anglicized French term. No universally recognized international body governs the naming of shared waters, and while the US president has broad authority over how the country officially designates landmarks within its borders, other nations are under no obligation to recognize such changes. Canada has made clear it will not.

The renaming order drew criticism from Democratic lawmakers in the US as well. Representative Debbie Dingell of Michigan, whose state borders four of the five Great Lakes, announced she would introduce legislation in Congress to nullify the order, calling it "idiotic." She emphasized that the Great Lakes are "a shared treasure that generations of Americans and Canadians have worked together to protect." New York Governor Kathy Hochul, whose state is the sole US state bordering Lake Ontario, stated her state "won't be calling it" Lake America. Other Democratic officials mocked the move on social media, with Wisconsin's governor joking that he had renamed Lake Michigan "Lake Wisconsin" by signing a napkin.

Trump's Secretary of the Interior Doug Burgess supported the order, saying the places and waters bordering the nation "should reflect the greatness of the United States." He pledged that the US Geological Survey would implement the name change with pride. The broader context remains the collapsed trade talks, which fell apart late Friday night with both sides accusing the other of introducing last-minute demands to a tentative agreement. There was a slight opening on Thursday when Canada's US trade minister, Dominic LeBlanc, noted that the US had withdrawn some demands around French-language labeling requirements and confirmed that measures promoting French language and Canadian culture would not be subject to future trade actions. He expressed hope for "further constructive US clarifications" that could lead to "a mutually beneficial trade agreement that respects Canadian sovereignty." Whether the lake renaming signals a hardening of positions or merely reflects Trump's long-stated intention to change the name remains unclear, but the move has deepened the rift at a moment when both countries face pressure to return to the negotiating table.