Cleisthenes (disambiguation)

Cleisthenes can refer to:
 * Cleisthenes, the reformer of ancient Athens.
 * Cleisthenes of Sicyon, the ancient tyrant of Sicyon.
 * Cleisthenes (son of Sibyrtius), an Athenian theoros satirized by Aristophanes
 * Cleisthenes (fish), a genus of flounders.