I see Golfe du Mexique (Golfe d'Amerique) from France in gmaps, and golfe du mexique/gulf of mexico/golfo des mexico on the maps supported by leaflet (depending on the provider)

I (in Germany) get "Lake Ontario (Lake America)" too, as well as "Golf von Mexiko (Golf von Amerika)". Maybe so the AfD leaders don't tell on Google to their pal Trump?