Nauplius

Nauplius, Nauplia or Nauplios, may refer to:

Greece-related

 * Nauplius (mythology), in Greek mythology, the son of Poseidon and Amymone, the father of Palamedes, and also the name of an Argonaut
 * Nauplia, a harbor town in Greece

Biology-related

 * Nauplius (larva), a life stage of crustaceans
 * Nauplius (plant), a genus in the family Asteraceae
 * Nauplius, a genus of copepods, considered synonymous with Cyclops (genus)
 * Nauplius, a genus of shrimp, considered synonymous with Alpheus (crustacean)
 * Nauplius (journal), an academic journal covering carcinology

Other

 * 9712 Nauplius, an asteroid