Ismarus

The name Ismarus may refer to:


 * Ismarus (Thrace), a city of the Cicones, on the Aegean coast of Thrace, mentioned in the Odyssey
 * A mountain of the same name, "Ismaros"; see Ismarus (Thrace)
 * Ismarus (wasp), a genus of wasps

Mythology

 * Ismarus, defender of Thebes who killed Hippomedon
 * Ismarus (Immaradus), son of Eumolpus and son-in-law of the Thracian king Tegyrios