Charmides was an Athenian statesman and one of the Thirty Tyrants who ruled Athens following its defeat in the Peloponnesian War. Uncle of Plato, Charmides appears in the Platonic dialogue bearing his name, as well as in Xenophon. He was killed in 403 BC when the democrats returned to Athens.

This Charmides was not the same man as the father of the great Athenian sculptor Phidias, also named Charmides. Of this second man nothing is known, except that he lived two generations before the Platonic Charmides.