Proetids

thumb|Melampus and the Proetids in the temple of Artemis, by Aubin-Louis Millin (1759–1818).

In ancient Greek and Roman mythology, the Proetids or Proetides () are three Argive princesses–namely Lysippe, Iphinoë, and Iphianassa–daughters of King Proetus and Queen Stheneboea (or Antea) of Argos, an ancient Greek city-state. The three of them were arrogant and vain, and were driven mad for disrespecting the gods. They roamed the countryside of the Argolid and even the rest of the Peloponnese in a frenzied fashion, sometimes causing other women to join them as well. They were only healed when the seer Melampus purified them, who then got two thirds of the kingdom and Iphianassa's hand in marriage as a prize.