In a highly unusual and symbolic move, former U.S. President Donald Trump announced he had signed an executive order to rename Lake Ontario — one of the five Great Lakes shared by the United States and Canada — as “Lake America.” Speaking at a press event, Trump stated: “We are changing the name of Lake Ontario to Lake America with immediate effect. The change takes effect immediately upon my signing of this executive order.” He added, “From now on, it will be known as Lake America. The majority of it lies within the United States.”
When asked whether the action was intended as a message to Canada, Trump denied it was confrontational, instead citing longstanding U.S. defense commitments to its northern neighbor. “We defend Canada for free. We get nothing in return. They don’t pay us to protect them — yet we do,” he said.
The announcement follows a sharp deterioration in U.S.-Canada trade talks, which collapsed last week after three days of intensive negotiations. Both sides accused each other of derailing the process. Just two days earlier — on August 25, 2026 — Trump had teased the idea in a post on Truth Social, writing: “The United States is seriously considering renaming Lake Ontario to Lake America, as we do not expect to do much business with Ontario going forward. Thank you for your attention to this matter! President DONALD J. TRUMP.”
Lake Ontario is the smallest of the five Great Lakes by surface area but the deepest in average depth. It straddles the U.S.-Canada border, with roughly 83% of its shoreline in the Canadian province of Ontario and the remainder in New York State. Its name derives from the Iroquois word *ontarí:io*, meaning “beautiful lake” — a reference rooted in Indigenous history dating back to the 16th century.
The Prime Minister of Canada’s office, led by Mark Carney, declined to issue an immediate comment when approached for reaction. No federal or state government agency in the U.S. or Canada has confirmed any official implementation of the name change, nor has any geographic authority — including the U.S. Board on Geographic Names or Natural Resources Canada — acknowledged the order as legally binding or administratively actionable.