Trump Orders Lake Ontario Renamed ‘Lake America’ Amid Escalating Trade War With Canada

Trump Orders Lake Ontario Renamed ‘Lake America’ Amid Escalating Trade War With Canada

WASHINGTON — U.S. President Donald Trump has ordered the federal government to rename Lake Ontario as “Lake America,” escalating tensions with Canada as the two countries face a growing trade dispute.

Trump signed the executive order Thursday, directing the U.S. Department of the Interior and the U.S. Board on Geographic Names to update federal geographic databases and official references to reflect the new name.

The order requires federal references, including maps, contracts and government documents, to use “Lake America” within 30 days.

Trump, however, described the name change as “official, effective immediately.”

Why Did Trump Rename Lake Ontario ‘Lake America’?

The move comes amid a rapidly intensifying trade dispute between the United States and Canada.

Speaking to reporters in the Oval Office, Trump connected the renaming of Lake Ontario to the breakdown of recent trade negotiations and new tariffs imposed on Canadian goods.

“We have a gulf and we have a lake,” Trump said, referring to his earlier decision to rename the Gulf of Mexico as the “Gulf of America.”

“Now all we need is an ocean,” he added, suggesting that the Atlantic or Pacific oceans could eventually face similar treatment.

Trump’s administration has increasingly used geographic naming decisions as symbolic demonstrations of U.S. sovereignty and national identity.

U.S.-Canada Trade War Escalates

The Lake Ontario name change comes just days after the United States imposed 50% tariffs on roughly $20 billion worth of Canadian goods following the collapse of bilateral trade negotiations.

Canada has responded by announcing matching “dollar-for-dollar” retaliatory tariffs on a similar volume of American products. The Canadian measures are scheduled to take effect next month.

Trump had already hinted at the possibility of renaming Lake Ontario earlier in the week, saying on social media that the United States did not expect to do “much business with Ontario any longer.”

The comment was particularly notable because Ontario is both the name of Canada’s most populous province and the lake shared by the two countries.

Can Trump Legally Rename Lake Ontario?

The executive order can change the name used by the U.S. federal government, but it does not automatically force Canada or the international community to adopt the new designation.

U.S. federal agencies can update government databases, maps and official documents under the new name. However, Canada, foreign governments, international organizations and private mapmakers are not required to follow the change.

That means the body of water could effectively have different official names depending on which country’s maps or government documents are being used.

Canada Rejects ‘Lake America’ Name

Canadian leaders quickly rejected Trump’s decision.

Prime Minister Mark Carney emphasized the long history of the name Lake Ontario, noting that it predates both Canadian Confederation and the United States Declaration of Independence.

Ontario Premier Doug Ford also dismissed the change, saying the body of water “will always be Lake Ontario to all Canadians and the rest of the world.”

Nova Scotia Premier Tim Houston described the move as “real foolishness.”

The Canadian government has continued to refer to the body of water as Lake Ontario.

Where Did the Name Ontario Come From?

The name Ontario has deep Indigenous roots.

It comes from an Indigenous Iroquoian term commonly translated as “great lake” or “lake of shining waters.” European explorers and mapmakers were using the name centuries before the Canadian province of Ontario was established.

The province was created in 1867 and was named after the lake, rather than the lake being named after the province.

Lake Ontario is the smallest of the five Great Lakes by surface area and forms part of the international border between New York State and the Canadian province of Ontario.

Will the World Start Calling It Lake America?

For now, the practical impact of Trump’s order is expected to be limited.

The United States can require its federal agencies to use “Lake America,” but it cannot dictate what Canada, international organizations or the rest of the world calls the lake.

Lake Ontario remains an important waterway for shipping, cross-border commerce and communities on both sides of the U.S.-Canada border.

Whether “Lake America” gains wider acceptance remains uncertain. For now, Canada and much of the international community continue to recognize the historic name Lake Ontario.

The renaming is nevertheless another sign of the increasingly contentious relationship between Washington and Ottawa as the two countries face a widening trade dispute.