President Donald Trump signed an executive order on Thursday directing federal agencies to rename Lake Ontario as “Lake America” within the United States. The move comes during a period of rising trade tensions between the United States and Canada and has sparked criticism from Canadian leaders and officials.
The order instructs the Interior Department to update the federal geographic naming system so that the lake will be identified as Lake America in official U.S. government records. However, the action applies only within the United States. Canada is not required to adopt the new name and has already rejected the change.
Trump announced the decision at the White House while seated at the Resolute Desk in the Oval Office. Behind him stood a large map of the Great Lakes displaying the words “Lake America” in bold letters over Lake Ontario. Another sign nearby carried the message “Making the Great Lakes Even Greater.”
The president said the renaming process had been completed through the proper channels and described the move as official. The executive order states that federal agencies have up to 30 days to implement the change in government systems and records.
The announcement arrives as relations between Washington and Ottawa face new strain over trade policy. The United States recently imposed tariffs of 50% on about $20 billion worth of Canadian imports after negotiations between the two countries failed to produce an agreement.
In response, Canada introduced its own tariffs on roughly $20 billion worth of American products. The measures affect a wide range of goods, including steel, dairy items, appliances, and farm equipment.
Trade disputes have become a major issue between the neighboring countries in recent months. Trump has repeatedly criticized Canada’s trade practices and defense spending. He has also made comments suggesting that Canada would be better off as part of the United States, a proposal that Canadian leaders have firmly rejected.
Canadian Prime Minister Mark Carney dismissed the renaming effort and defended the lake’s long-established name. He noted that the name Lake Ontario has deep historical roots and existed long before either modern Canada or the United States was formed.
Carney said the lake’s name is tied to Indigenous history and cultural heritage. The name comes from a Huron Indigenous word that means “lake of shining waters.” The Province of Ontario later adopted its name from the lake when it was established in the nineteenth century.
Ontario Premier Doug Ford also criticized the decision. He stated that the lake remains Lake Ontario for Canadians and for much of the world. Other provincial leaders echoed similar views and called the change unnecessary.
Nova Scotia Premier Tim Houston mocked the move and described it as a distraction. His comments reflected a broader reaction across Canada, where many political leaders and residents rejected the new designation.
The opposition was not limited to Canada. New York Governor Kathy Hochul, whose state borders Lake Ontario, said New York would continue using the traditional name. Her response highlighted divisions within the United States over the president’s decision.
Lake Ontario is one of the five Great Lakes shared by the United States and Canada. The waterway plays an important role in transportation, tourism, fishing, and regional commerce. Because it is an international body of water, both countries have long recognized the same geographic name.
Experts note that there is no single international authority that determines the official names of all lakes, oceans, and waterways. Countries can decide how they refer to geographic features in their own records and maps. As a result, different nations may use different names for the same location.
Trump said the order was not intended as a direct geopolitical message. However, he again criticized Canada over trade and military issues during remarks following the signing ceremony. He argued that the United States had been treated unfairly for many years.
The decision also follows Trump’s earlier effort to rename the Gulf of Mexico as the “Gulf of America” within U.S. government usage. That move generated debate both inside and outside the country.
Before leaving the Oval Office event, Trump suggested that additional name changes could be considered in the future. He joked that after renaming a gulf and a lake, perhaps an ocean could be next. While the comment appeared lighthearted, it added to the attention surrounding the latest executive order and its impact on U.S.-Canada relations.

