Renaming Lake Ontario Sparks Questions on Presidential Power

President Donald Trump’s decision to rename Lake Ontario as “Lake America” has sparked discussions about the extent of presidential power in altering geographic names and international conventions. On August 27, Trump signed an executive order directing the federal government to rename Lake Ontario as “Lake America.” This follows previous attempts to change how geographic features are labeled in U.S. records.

Interior Secretary Doug Burgum was instructed to update the Geographic Names Information System, the federal database that standardizes place names across government agencies. The change affects federal usage, but does not mandate adoption by Canada, international organizations, or private mapmakers.

Nearly two years earlier, Trump had ordered the renaming of the “Gulf of Mexico” to “Gulf of America” in official records. In remarks, Trump hinted at possibly renaming larger targets, such as the Atlantic and Pacific Oceans. Newsweek sought comment from the White House.

Potential Renaming of Oceans

Upon signing the Lake Ontario order, Trump joked about possibly renaming the Atlantic or Pacific Oceans. Renaming oceans within U.S. documents is feasible for a president, as demonstrated by the preceding Gulf of America and Lake America changes. The U.S. Board on Geographic Names standardizes names across federal agencies for consistency.

However, ocean renaming remains symbolic outside the U.S. No country owns these oceans under international law. Coastal nations control territorial waters up to about 12 nautical miles from shore and resource rights within Exclusive Economic Zones extending 200 nautical miles offshore. Beyond are international waters shared globally. Even if Washington adopted new names, foreign governments, organizations, mapmakers, and shipping operators would not be obliged to use them.

Reasons for Renaming Lake Ontario

Trump issued the order to classify Lake Ontario as “Lake America,” directing the Interior Secretary to update records. The move followed comments amid a trade dispute with Canada. Previously, Trump mentioned on social media the consideration of renaming the lake and announced the decision from the Oval Office. When queried on his message to Canada, Trump denied a specific message but critiqued the trade relations.

The change echoes Trump’s previous effort with the Gulf of Mexico and indicates his willingness to use executive power to alter federal naming conventions. Yet, the order’s practical implications are limited. Lake Ontario is shared with Canada and forms part of an international boundary; thus, federal agencies may adopt the new name, but Canada and other international bodies are not required to do so.

The distinction clarifies presidential naming authority. While a president can influence federal references to places, it does not reconfigure the name globally.

Authority Over the Gulf of Mexico

Trump’s 2025 order renaming the Gulf of Mexico prompted similar inquiries into ownership and naming rights. Despite the new designation, the gulf remains bordered by the U.S., Mexico, and Cuba, each exerting authority over adjacent waters as per international law. The order did not change control of the gulf nor expand American claims. Instead, it instructed federal agencies to use “Gulf of America” in official documents, regulations, and databases. NOAA updated references where legally possible, but statutory references by Congress could not be altered by executive action.

This episode highlights the separation between naming and jurisdiction. Governments can choose how they refer to a place in documents, but names do not equate to ownership. Gulf of Mexico jurisdiction is managed through maritime boundaries and international agreements, not by unilateral naming.

Alteration of globally recognized names, particularly for oceans, is far more challenging than changing a government database. Oceans are shared spaces beyond any one nation’s authority. Thus, Trump’s reach in renaming is limited; he can direct federal terminology, but international adherence is uncertain.