Licymnius of Chios was a poet active in the 4th century BCE. He is known solely from two references in Aristotle’s Rhetoric, which provide no biographical details beyond his origin and profession.

His only attested work is a collection titled Dithyrambs, from which two fragments survive via Aristotle. These are a line criticized as a "frigid" metaphor—"prudence, having sown, a godlike fruit"—and a definition of beauty as "the bloom of the well-conditioned."

Licymnius’s significance derives entirely from his role in Aristotle’s rhetorical analysis. His fragments provide a minor data point for the study of dithyrambic poetry and offer concrete insight into Aristotelian literary criticism, particularly regarding stylistic faults.