US President Donald Trump wants the Gulf of Mexico to be called the Gulf of America. President Trump said: "America will reclaim its rightful place as the greatest, most powerful, most respected nation on Earth." He added: "We are going to be changing the name of the Gulf of Mexico to the Gulf of America." The U.S. government said it "is proud to announce the implementation of name restorations that honor the legacy of American greatness".

The USA can use "Gulf of America" on official US maps. However, no international organization can mandate the global acceptance of name changes. Mexico's president has opposed the name change. She said the name "Gulf of Mexico" has existed for four centuries. She joked that if there were to be name changes, the USA should be called "Mexican America," as on a map from 1607. The UN says a country's territory only extends 19 km from its coastline.