In all the world, ריסו (Risso 
, ריסו 
) is a rare epicene first name. The forename ריסו is characteristic of Italy, where it is a rare epicene name, the Democratic Republic of the Congo, where it is a rare girly name, and Tanzania, where it is a very rare boy's name. In absolute terms, it is commonest in the Democratic Republic of the Congo, Italy, and India. Much more prevalently, ריסו is the last name as well as the forename.