President Trump orders the easternmost Great Lake to be officially designated as “Lake America”
WASHINGTON, DC — President Donald Trump’s recent directive to rename Lake Ontario as “Lake America” has triggered widespread online discussions regarding the true history of the body of water. Amid debates over the origins of the name “Ontario” and its ties to our northern neighbor, several online commentators have asserted that the lake was actually named after the Canadian province.
The Rumor: Was Lake Ontario named after the province?
is someone gonna tell Trump that the lake wasn’t named after the province of Ontario?
— Sam Stein (@samstein) August 27, 2026
In late August 2026, President Trump mandated that Lake Ontario be referred to as “Lake America” across all official United States government publications. The executive order was signed against a backdrop of rising political and economic tensions following the breakdown of trade negotiations with Canadian leadership.
Following the announcement, social media platforms lit up with users questioning the premise of the renaming. Some suggested that Trump was misguided in targeting a Canadian title, operating under the assumption that the lake took its moniker from the province of Ontario.
Fact Check: The province actually took its name from the lake
I was given my name by the Iroquois Nation many hundreds of years ago. By 1660 my name was printed on maps by the Europeans as they accepted the Native name which means Beautiful waters.
In 1867 the Canadian government decided to use my name for their providence.— 👑 ♤ Lake Ontario (@LakeOntario16) August 27, 2026
The notion that Lake Ontario derives its name from the Canadian province is entirely inaccurate.
Historical evidence proves that Indigenous populations used the term “Ontario” to describe the massive body of water centuries before the Canadian province ever existed. European explorers subsequently adopted the Native terminology and began printing it on maps.
Cartographic history clearly backs this timeline. Historical maps feature the name “Ontario” applied strictly to the lake long before the Canadian government officially established the province of Ontario in 1867. In short, the province was named after the lake, not the other way around.
The true origin of the name “Ontario”
According to data from the National Museum of the Great Lakes, the word “Ontario” originates from the Huron (Wendat) term *Ontarí’io*, which translates to “great lake” or “beautiful water.” Historically, the term was strictly used to describe a body of water rather than a defined territory of land.
Data from the Canadian Encyclopedia indicates that European settlers first applied “Ontario” to the lake in 1641, with the designation appearing on North American maps by 1656. Mid-17th-century cartography used various names—including Lake St. Louis and Lake Ontario—with maps from 1656 and 1657 prioritizing the latter.
Crucially, these early maps never utilized “Ontario” to identify the landmass north of the lake. Even centuries later, maps dating to 1775 and 1777 continued to use the title exclusively for the aquatic landmark known today as Lake Ontario.