Celaenus may refer to: In Greek mythology (Κελαινός Kelainos): Celaenus, son of Poseidon and the Danaid Celaeno Celaenus, father of Tragasia who was a possible spouse of Miletus Celaenus, son of Phlyus and father of Caucon See Celaenus (mythology) In biology: Hasora celaenus, a species in the genus Hasora