Phanodicus (Φανόδικος) was a Hellenistic historian of the 3rd century BCE. No details of his life survive. He is known only as the author of a historical work composed in Koine Greek prose.

His sole attested work is On the Tyrants of Heraclea (Περὶ τῶν ἐν Ἡρακλείᾳ τυράννων), which is now lost. It chronicled the rulers of Heraclea Pontica, a Greek colony on the Black Sea coast of modern Turkey [1][2].

Phanodicus serves as a fragmentary source for the history of Heraclea Pontica. His work was utilized by later historians, including Memnon of Heraclea, thereby transmitting details of the city's tyrannical dynasty, which included figures like Clearchus, into the broader historical tradition [1][2].

Sources 1. Smith's Dictionary of Greek and Roman Biography and Mythology (via Perseus): http://www.perseus.tufts.edu/hopper/text?doc=Perseus%3Atext%3A1999.04.0104%3Aentry%3Dphanodicus-bio-1 2. ToposText: https://topostext.org/people/1500