Last name カストロ (Castro 
, Kastro , カストロ 
) , all around the world, is a prevalent surname. The cognomen カストロ is characteristic of Latin America and the Caribbean, particularly Costa Rica, where it is a prevalent surname, Honduras, where it is a widespread surname, and Nicaragua (explore the name in all countries). Measured by absolute frequency, the name is most common in Latin America and the Caribbean, particularly Brazil, Mexico, and Colombia. Very seldom, カストロ is the forename as well as the last name.