Surname Карвальо (Carvallo 
, Карвальо 
) , in all the world, is a common family name. The last name Карвальо is habitual in Latin America and the Caribbean, particularly Paraguay, where it is quite a common surname, Chile, and Uruguay. In absolute terms, it is the most numerous in Latin America and the Caribbean, particularly Chile, Paraguay, and Venezuela. Very seldom, Карвальо is the forename as well as the last name.