US President Donald Trump has signed an executive order directing the renaming of Lake Ontario as “Lake America” in the United States, escalating tensions with Canada amid an ongoing trade dispute between the two countries.
The order, signed on August 27, directs the US Department of the Interior, in coordination with the US Board on Geographic Names, to take appropriate steps to rename the body of water as “Lake America” in US geographic naming systems. The order gives the department 30 days to complete the process.
Editorial Insight
Key Highlights
Important points readers should notice.
US-only effect: The order changes the name for US federal geographic usage; it cannot compel Canada to adopt it.
Diplomatic friction: The move adds another symbolic dispute to already strained US-Canada relations.
Historical sensitivity: Lake Ontario's name has deep Indigenous and historical roots.
Trade war backdrop: The renaming comes as Washington and Ottawa remain locked in a major tariff dispute.
Trump announced the move while signing the order at the White House and said the name change was being made to recognise what his administration described as the lake's importance to American history, commerce and national heritage.
The executive order argues that Lake Ontario has played an important role in American exploration, settlement, trade, defence and transportation. It also points to the economic importance of the wider Great Lakes-St. Lawrence Seaway system.
However, the change applies to US federal geographic usage and cannot force Canada to adopt the new name. Lake Ontario lies between the US state of New York and the Canadian province of Ontario, making the naming issue immediately sensitive for both countries.
Canadian Prime Minister Mark Carney rejected the proposed renaming, saying Canadians would continue to call the body of water Lake Ontario. He also highlighted the name's historical and Indigenous roots, noting that it predates both Canadian Confederation and the United States' Declaration of Independence.
The dispute comes at a particularly tense moment in US-Canada relations. Washington and Ottawa have recently imposed retaliatory tariffs on billions of dollars worth of goods after trade negotiations broke down.
The symbolic renaming has therefore added another point of friction between the two neighbours, even though it does not change Canada's official geographic usage.
The move also follows Trump's earlier campaign to change geographic names in the United States, including the administration's 2025 decision to rename the Gulf of Mexico as the “Gulf of America” for US federal purposes.
The Lake America order is expected to remain controversial because the lake is shared by the United States and Canada and has longstanding historical, geographic and Indigenous significance.
