Polycrates (disambiguation)

Polycrates (Πολυκράτης, Polykratēs) may refer to:

Persons

 * Polycrates, tyrant of Samos from c. 538 BC to 522 BC
 * Polycrates (sophist) (c. 440-370 BC), author of paradoxical encomia and an Accusation of Socrates
 * Polycrates of Ephesus (fl. c. AD 130-196), bishop
 * Polycrates of Argos

Other

 * Dalla polycrates, a butterfly in the family Hesperiidae
 * Der Ring des Polykrates (poem), a lyrical ballad written in 1797