President Donald Trump has enacted an executive order to rename Lake Ontario as Lake America. This decision follows the breakdown of trade negotiations between the United States and Canada, which resulted in the US imposing a 50% tariff on $20 billion worth of Canadian goods. In response, Canada plans to implement reciprocal tariffs next month.
Throughout the trade dispute, Trump has consistently expressed his intention to rename the lake on social media. On Thursday, he declared the change “official, effective immediately,” stating that his administration has completed all necessary paperwork to formalize the decision.
In response, Canadian Prime Minister Mark Carney emphasized the historical significance of the name Lake Ontario, which has existed for over 400 years, long before the Canadian Confederation and the US Declaration of Independence. He asserted in a social media post, “Canadians understand the importance of names, and this lake will always be known as Lake Ontario—today and forever.”
In 2025, when Trump assumed the presidency, he issued a similar order changing the Gulf of Mexico to the Gulf of America. Mexico disputed this name change, arguing that a single nation cannot rename a shared international body of water, leading to a legal conflict with tech giant Google, which altered the name in its mapping application.
Google Maps users in the US now see “Gulf of America,” while users in Mexico view “Gulf of Mexico.” International users see “Gulf of Mexico (Gulf of America).” Additionally, the White House previously restricted Associated Press reporters from attending presidential events due to the agency’s refusal to use the term “Gulf of America,” resulting in an ongoing legal battle.
While the US president possesses considerable authority to designate official geographic names, other nations are not obliged to comply. Trump’s latest order instructs the US Department of the Interior to update the Geographic Names Information Service, the official database of US geographic names, to reflect this change.
However, Canada is under no obligation to acknowledge changes made by other countries, and officials have dismissed the notion. Nova Scotia Premier Tim Houston remarked, “This is real foolishness. It’s Lake Ontario, buddy.” Industry Minister Melanie Joly affirmed, “We will always call it Lake Ontario.”
The naming dispute arises amid escalating trade tensions between the two countries, which have seen relations deteriorate significantly. During the signing ceremony in the Oval Office, Trump stated that the change was not intended as a direct message to Canada, although he expressed that the country has been unfairly benefiting from trade with the US for an extended period. He mentioned that he had contemplated renaming the lake “for a long time,” adding, “Now, all we need is an ocean. Perhaps we’ll consider renaming the Atlantic or Pacific as well.”
Despite the ongoing trade dispute, there are glimmers of hope for renewed negotiations. Canadian Trade Minister Dominic LeBlanc indicated on X that the US has retracted some of its demands regarding French labeling requirements and has confirmed that measures to promote the French language and Canadian culture will not face future US trade actions. He expressed optimism for further constructive clarifications from the US, which could pave the way for a mutually beneficial trade agreement respecting Canadian sovereignty.
Trade discussions recently collapsed, with both parties accusing one another of making last-minute demands that jeopardized a tentative agreement.
