In all the world, Mariso (Mariso 
) is a rare epicene first name. The first name Mariso is characteristic of Bolivia, where it is a rare feminine name, Italy, where it is a rare gender-neutral name, and Philippines, where it is a very rare largely feminine, but seldom male name. Measured by absolute frequency, the name is most common in Italy, Brazil, and Philippines. Very seldom, Mariso is the last name as well as the forename.