Heraclitus of Halicarnassus (; 3rd century BC) was an elegiac poet of the Hellenistic period.
Heraclitus was from the Greek-Carian city of Halicarnassus on the south-west coast of Anatolia. He was a contemporary and friend of Callimachus of Cyrene, who wrote a memorial epigram on him which is preserved in Diogenes Laërtius. Only one poem by Heraclitus himself â an epigram on a mother who died in childbirth giving birth to twins â is extant in the Greek Anthology.