Elladio or Eladio is an Italian given name, also known in its feminine variants of Elladia or Eladia. It also appears in Latin as Helladius, in Polish as Heladiusz or Eladiusz and in Spanish as Eladio. These all derive from Ἑλλάδιος Helladios, an ethnonymic name in Greek attested since late antiquity and meaning 'one from Hellas' (i.e. from Greece; MASC). This is similar to the name "Greca" (see names of Greece and names of the Greeks).