‘Then, Now and Always’: Carney Rejects Trump’s ‘Lake America’ Label for Lake Ontario

Canadian Prime Minister Mark Carney has rejected Donald Trump’s reported attempt to refer to Lake Ontario as “Lake America,” insisting that the waterway will remain Lake Ontario “then, now and always.”

Carney's response comes amid a sharp deterioration in relations between Ottawa and Washington, with the dispute over the lake's name adding a symbolic dimension to broader disagreements over trade, tariffs and Canadian sovereignty.

Carney Defends Lake Ontario’s Name

Carney responded in a post on X, saying the United States was changing its approach to trading relationships, foreign policy, monuments and even “hydronyms” — the names given to bodies of water.

But he made clear that Canadians would continue to recognise the waterway by its established name.

“Then, now and always,” Carney said of Lake Ontario, arguing that Canadians know that “naming reality” means calling it Lake Ontario.

His remarks turned what could have been dismissed as a dispute over terminology into a broader statement about Canadian identity and sovereignty.

Indigenous History at the Centre

Carney also highlighted the Indigenous origins of the name Ontario, linking the lake's name to Canada's geography, history and cultural heritage.

For Canada, the issue is therefore not simply about what appears on a map. The name is tied to a long-established geographic identity shared by communities on both sides of the Canada-US border.

A change in terminology by a US political figure would not, by itself, alter Canada's established naming of the lake.

Dispute Comes Amid Growing US–Canada Tensions

The exchange comes at a particularly tense moment in US-Canada relations.

Trade negotiations between the two countries recently collapsed, followed by new US tariffs on Canadian goods and retaliatory measures from Ottawa.

Trump has also used increasingly provocative language towards Canada, while Carney's government has taken a tougher position in response.

Against that backdrop, the “Lake America” controversy has become another flashpoint in an increasingly strained relationship between the two neighbours.

Would the Name Actually Change?

The available report does not establish that the “Lake America” label has any official legal or internationally recognised cartographic status.

A unilateral political statement from Washington would not automatically change the established name of the lake, which is geographically shared by Canada and the United States.

For Carney, however, the symbolism matters.

By declaring that the lake will remain Lake Ontario “then, now and always,” the Canadian prime minister has framed the issue as a defence of the country's history, Indigenous heritage and national identity at a time when relations with Washington are already under significant strain.