In the entire world, Дайон (Dayon 
, Dajon 
, Daion 
) is a rare dominantly male, but seldom feminine first name. The forename Дайон is habitual in the Democratic Republic of the Congo, where it is a rare boy's name, the United States, where it is a very rare epicene name, and Philippines. In absolute terms, the name is most common in the Democratic Republic of the Congo, the United States, and Nigeria. More frequently, Дайон is the last name as well as the forename.