Worldwide, Dunio (Dunio 
, Дунио 
) is quite a rare epicene first name. The first name Dunio is habitual in Somalia, where it is quite a rare predominantly girly, but very seldom masculine name, Azerbaijan, where it is quite a rare boy's name, and Portugal, where it is a rare male name. In absolute terms, it is commonest in Somalia, Azerbaijan, and Nigeria. Very seldom, Dunio is the last name as well as the forename.