Cognomen Идальго (Hidalgo 
, Идальго 
) , throughout the world, is a widespread last name. The cognomen Идальго is characteristic of Latin America and the Caribbean, particularly Costa Rica, where it is a common surname, Peru, and Chile (explore the name in all countries). Not in comparison with a country's population, it is the most numerous in Latin America and the Caribbean, particularly Mexico, Peru, and Venezuela. Very seldom, Идальго is the forename as well as the last name.