All around the world, Gelso (Gelso 
) is a rare predominantly male, but scarcely female given name. The forename Gelso is characteristic of Brazil, where it is a rare boy's name, Italy, where it is a rare primarily boy's, but very infrequently girly name, and Argentina, where it is a very rare epicene name. Also, Gelso is the last name as well as the forename.