Britain will continue to call the body of water by its current name unless the new title ordered by Mr Trump gains widespread usage in English.
The US president instructed the US Board on Geographic Names to change the gulf’s name within hours of taking office on Monday, after arguing that the ocean basin was “ours” and the US does “most of the work there”.
The name will change on official maps in the US within 30 days. Some navigation apps, including Google Maps, are under pressure from Republicans to change it immediately.
