Euthydemus () may refer to:

People

  • Euthydemus, a fleet commander for Athens during the Sicilian Expedition, 415 to 413 BC
  • Euthydemus of Chios, a 5th-century sophist who features in Plato's Euthydemus
  • Euthydemus, a son of Cephalus, mentioned in Plato's Republic
  • Euthydemus, a son of Diocles, mentioned in Xenophon's Memorabilia
  • Euthydemus I (3rd century BC), ruler of the Greco-Bactrian Kingdom
  • Euthydemus II (2nd century BC), ruler of the Greco-Bactrian Kingdom
  • Euthydemus (tyrant) (3rd century BC), tyrant of Sicyon

Dialogues

  • Euthydemus (dialogue), a dialogue by Plato