Trump Floats Renaming Lake Ontario as 'Lake America' Amid Escalating US-Canada Trade Dispute

US President Donald Trump has floated the idea of renaming Lake Ontario as 'Lake America' amid an escalating US-Canada trade dispute.

In a Truth Social post on Tuesday, he said the United States is giving serious consideration to changing the name of Lake Ontario to Lake America in that we don't expect to do much business with Ontario any longer.

The suggestion came hours before Canadian Prime Minister Mark Carney announced reciprocal tariffs on US imports, following the collapse of trade talks last week.

Trade Tensions Deepen After Talks Collapse

Negotiations between Washington and Ottawa broke down on Friday after what Canadian officials described as last-minute US demands that were unfair and uneconomic.

The Trump administration imposed 50 per cent tariffs on about $20 billion (£14.7 billion) of Canadian goods over the weekend, covering items such as wine, dairy products, cement and clothing.

Canada struck back on Tuesday with retaliatory tariffs matching the value dollar for dollar, targeting US steel, dairy, appliances and farm equipment, effective from 8 September.

Ontario Premier Doug Ford had responded to the initial measures by telling Trump to 'kiss my ass' on a radio interview, after which the president referred to him as Flunky Ford and called both Ford and Carney clowns.

Industry Minister Mélanie Joly remarked that Canada would be smart and fight back as all these shenanigans are happening.

The dispute affects integrated supply chains, particularly in the auto sector that spans the border and supports thousands of jobs on both sides.

Reactions in Ontario and Beyond

Canadians living near the shared border quickly rejected the renaming notion. Patricia Wiseman, walking along the waterfront in Windsor, said he can blow out his hole as much as he wants to but it's never going to happen because Canadians are strong.

Premier Ford later described the proposal as a lot of rhetoric and urged both sides to get back to the table, acknowledging the dispute had got a little personal.

Lake Ontario forms part of the Great Lakes system and is jointly managed by the two countries through longstanding agreements.

Trump followed his post with a map showing Lake Ontario crossed out and replaced by Lake America in large gold letters next to a US flag.

The White House also shared related imagery linking to previous rebrandings. Local voices on the American side of the border expressed mixed views, with some supporting the move amid the tariff friction while others saw little practical point.

Limits on Unilateral Name Changes

The proposal mirrors Trump's January 2025 executive order that directed US federal agencies to refer to the Gulf of Mexico as the Gulf of America, a shift reflected on some American digital maps but not adopted by Mexico or international bodies.

Experts note that while the president holds authority over domestic official nomenclature, shared international waterways remain subject to bilateral protocols that prioritise established names. The Indigenous origin of Ontario, referring to sparkling waters, predates modern borders.

As of 26 August 2026 no formal order has been issued, though platforms could adjust displays for US users if directed by federal agencies.

Further tariff threats on Canadian vehicles, auto parts and steel continue to hang over the relationship, with both governments accusing the other of seeking to undermine key industries.