Apomyius ( grc, Ἀπομυιος), Greek for "driving away the flies," was an epithet of

Zeus Zeus or , , ; grc, Δῐός, ''Diós'', label= genitive Boeotian Aeolic and Laconian grc-dor, Δεύς, Deús ; grc, Δέος, ''Déos'', label= genitive el, Δίας, ''Días'' () is the sky and thunder god in ancient Greek reli ...

at Olympia. On one occasion, when

Heracles Heracles ( ; grc-gre, Ἡρακλῆς, , glory/fame of Hera), born Alcaeus (, ''Alkaios'') or Alcides (, ''Alkeidēs''), was a divine hero in Greek mythology, the son of Zeus and Alcmene, and the foster son of Amphitryon.By his adoptiv ...

was offering a sacrifice to Zeus at Olympia, he was annoyed by hosts of flies, and in order to get rid of them, he offered a sacrifice to Zeus Apomyius, whereupon the flies withdrew across the river Alpheius. From that time the Eleans sacrificed to Zeus under this name. It was customary to sacrifice a bull to Zeus Apomyius at the ancient Olympic Games, in order to drive away the flies that plagued those events.

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Epithets of Zeus {{Greek-deity-stub