All the places the Trump administration has renamed in his second presidency, from the Gulf of Mexico to Lake Ontario

President Donald Trump changed the name of Lake Ontario to "Lake America" on Thursday.

Andrew Harnik/Getty Images The Trump administration has changed the names of buildings, agencies, and bodies of water.

Trump renamed the Gulf of Mexico and Alaska's Denali upon taking office in January 2025.

Amid tensions with Canada, Trump renamed Lake Ontario to "Lake America" on Thursday.

First, the Gulf of Mexico, now Lake Ontario — President Donald Trump has suggested an ocean could be next.

The president signed an executive order on Thursday to rename Lake Ontario — one of the five Great Lakes, bordering both Canada and the US — to Lake America, telling reporters in the Oval Office that he had been thinking about the change "for a long time." "Maybe we'll have to change the name of the Atlantic and/or the Pacific," Trump said about renaming other bodies of water for America.

"Maybe we'll change them both." Canadian officials have said they would not recognize the lake's new name, which applies only to US federal use.

The move comes as Trump's tariff-driven trade war with Canada continues to escalate.

In August, the US imposed new 50% tariffs on about $20 billion in Canadian goods after negotiations fell apart, prompting Canada to announce retaliatory tariffs of up to 50%.

Canadian Prime Minister Mark Carney responded on X , saying that Canadians would continue to call the lake Lake Ontario, a name that dates back over 400 years.

Lake Ontario is the latest among the many name changes Trump has made or overseen during his second non-consecutive term.

Besides renaming numerous government programs and buildings after Trump himself, here's a look at the other places the administration has renamed — so far.

January 2025: Trump renamed the Gulf of Mexico and Denali.

A "Gulf of America" poster behind President Donald Trump in the Oval Office.