Google Maps shows Lake Ontario as 'Lake America' in the US on August 30 after President Donald Trump's renaming order. CREDIT: New York

Google redesignated Lake Ontario as “Lake America” on maps seen by US users Sunday after President Donald Trump announced he was renaming the body of water, with a Canadian official slamming the cross-border tensions as “absolutely backwards.”

People in Canada will still see Lake Ontario, the Indigenous-rooted name used for the lake since the 17th century, on their devices and computers, the US-based tech giant said.

The shock nomenclatural spat erupted as the latest element of Trump’s “America First” narrative, with longtime allies the United States and Canada ramping up a trade war that has seen Washington and Ottawa slap tit-for-tat tariffs on each other.

Apple’s Maps app that comes installed on all iPhones makes no mention of “Lake America” on its maps as of Sunday morning.