Globally, アレナス (Arenas 
, アレナス) is a rare gender-neutral given name. The forename アレナス is characteristic of Libya, where it is a rare female name, Colombia, where it is a rare epicene name, and Italy, where it is a very rare gender-neutral name. In absolute terms, the name is most common in Colombia, Libya, and China. More prevalently, アレナス is the last name as well as the forename.