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Worldwide, Leos (Leoš , Leos , ליאו ) is quite a rare male first name. The given name Leos is characteristic of Czechia, where it is quite a common masculine name, Albania, where it is quite a rare masculine name, and the Dominican Republic, where it is a rare masculine name. In absolute terms, the name is most common in Czechia, India, and Indonesia. More frequently, Leos is the last name as well as the forename.
Leos is also a name for the fictitious and mythical characters: Leos , the eponymous tribal hero of Athens.