Canada erects giant ‘Lake Ontario’ sign after Trump orders US maps to call it ‘Lake America’

President Trump signed an executive order directing US agencies to refer to Lake Ontario as "Lake America." The order affects the US federal Geographic Names Information System (GNIS), which sets the standard for official US maps and government databases.

Google said it reflects name changes found in official government sources. As a result, Google Maps displays "Lake America" for US users. The company said the change does not affect Canadian naming conventions: people in Canada continue to see "Lake Ontario," and users outside the US and Canada may see both names.

Ontario's premier, Doug Ford, installed a large sign near Grimsby that reads "Lake Ontario. Now and Always." The sign is roughly two storeys tall and positioned on the lakeshore, intended as a public rebuttal to the US order. Ford framed the move as provincial defiance and said the name will endure beyond the current US president.

President Trump amplified the dispute on social media by posting videos related to the renaming. One showed him toppling a Lake Ontario sign and replacing it with a "Lake America" sign while dancing to YMCA. Another depicted militarized Canada geese with a Trump-like appearance. The posts raised the profile of the spat beyond official statements.

The naming argument is not an isolated incident. It has become a public face of a broader trade dispute between the US and Canada. The US has imposed a 50% tariff on Canadian steel, and Ottawa has enacted retaliatory tariffs. Negotiations to resolve the trade issues were stalled at the time of these exchanges.

The move follows a similar episode earlier in this presidency when Trump directed agencies to refer to the Gulf of Mexico as the "Gulf of America." Mapping services again reflected that US-facing change.

Ontario's premier positioned the sign as a defiant, visual statement against the US order and said the name will remain Lake Ontario. Other provincial leaders expressed ridicule rather than outrage. Manitoba's premier compared the renaming stunt to an ageing act trying to revive old hits, signaling frustration and dismissal rather than escalation.

The dispute combines symbolic gestures, social-media theatrics, and formal policy moves. For residents and map users the immediate effect is technical: US federal documents and US-facing maps may use a different name. For diplomacy and trade, the naming spat has become another wedge in already strained relations tied to tariffs and retaliation.

• If you use US-based government maps or services, Lake Ontario may appear as Lake America. Canadian users should continue seeing Lake Ontario.
• Expect the issue to remain a talking point while broader trade negotiations and tariff disputes continue.
• The debate invokes Indigenous place-name history in Canada and a contested assertion of unilateral naming by one government over a shared geographic feature.