Amerigo Vespucci was an Italian explorer and navigator from the Republic of Florence, from whose name the term "America" is derived.

The naming of the Americas, or America, occurred shortly after Christopher Columbus's first voyage to the Americas in 1492. It is generally accepted that the name derives from Amerigo Vespucci, the Italian explorer, who explored the new continents in the following years on behalf of Spain and Portugal. However, some have suggested other explanations, including being named after the Amerrisque mountain range in Nicaragua, or after Richard Amerike, a merchant from Bristol, England.