Last name ريوس (Rios 
, Rius , Ríos ) , around the world, is a prevalent family name. The cognomen ريوس is habitual in Latin America and the Caribbean, particularly Panama, where it is a common surname, Paraguay, and Nicaragua (explore the name in all countries). In absolute terms, the name is most common in Latin America and the Caribbean, particularly Mexico, Colombia, and Argentina. Much less frequently, ريوس is the forename as well as the last name.