Euphorion (Greek: Εὐφορίων) was a Greek poet and grammarian, born at Chalcis in Euboea about 275 BC.
Euphorion spent much of his life in Athens, where he amassed great wealth. After studying philosophy with Lacydes and Prytanis, he became the student and eromenos of the poet Archeboulus. About 221 he was invited by Antiochus the Great to the court of Syria. He assisted in the formation of the royal Library of Antioch, of which he held the post of librarian till his death. He wrote mythological epics (the Thrax), amatory elegies, epigrams and a satirical poem (Arae, "curses") after the manner of the Ibis of Callimachus.
Prose works on antiquities and history are also attributed to him. Like Lycophron, he was fond of using archaic and obsolete expressions, and the erudite character of his allusions rendered his language very obscure. His elegies were highly esteemed by the Romans—they were imitated or translated by Cornelius Gallus and also by the emperor Tiberius.
Fragments published in Meineke, De Euphorionis Chalcidensis vita et scriptis, in his Analecta Alexandrina (1843) began the modern editions of the surviving fragments of Euphorion. Further lines have been recovered from papyri of Oxyrhynchus and elsewhere.