Trump Renames Lake Ontario Lake America Amid Trade War

President Donald Trump signed an executive order on August 27, 2026, officially renaming Lake Ontario as Lake America for all United States federal purposes. The directive requires the Department of the Interior and the US Board on Geographic Names to update official maps and databases. Trump linked the move to a deteriorating trade relationship with Canada, claiming the country has been "ripping us off for decades" and suggesting that Canada could eventually be absorbed as the 51st U.S. state.

The renaming follows the collapse of bilateral trade negotiations on August 21, which led the U.S. to impose 50 percent tariffs on approximately $20 billion of Canadian goods. Prime Minister Mark Carney responded by implementing matching retaliatory tariffs on U.S. imports, scheduled to take effect September 8, and pledged a $7.5 billion support package for affected Canadian businesses.

Canadian officials and Indigenous leaders have overwhelmingly rejected the order. Mark Carney and Ontario Premier Doug Ford asserted that the lake's name, derived from the Wendat word Ontari’io, predates both nations and will remain Lake Ontario. Ford further protested by unveiling "Lake Ontario Now and Always" signage and billboards along the shoreline. Indigenous leaders, including Grand Chief Pierre Picard and Seneca Nation President J. Conrad Seneca, condemned the move as an attempt to erase Indigenous history and a violation of historical treaties.

Private sector responses varied. Google and Apple updated their mapping services to display Lake America for users within the United States, while maintaining Lake Ontario for Canadian users. Conversely, MapQuest publicly refused to implement the change, a move that propelled the app to the top of the U.S. App Store downloads chart.