Surname רוסיו (Rocío 
, Rossio 
, רוסיו 
) , worldwide, is quite a rare family name. The family name רוסיו is characteristic of Uruguay, where it is quite a rare surname, Guatemala, where it is a rare surname, and Spain. In absolute terms, it most frequently occurs in Spain, Argentina, and Peru. More frequently, רוסיו is the forename as well as the last name.