In Greek mythology, the Danaïdes (/dəˈneɪ.ɪdiːz/; Greek: Δαναΐδες), also Danaides or Danaids, were the fifty daughters of Danaus, king of Libya. In the most common version of the myth, the daughters were forced to marry the sons of Danaus' brother Aegyptus. In retaliation, Danaus commanded them to kill their husbands on their wedding night, and all but one, Hypermnestra, obeyed. The Danaids were then condemned to spend eternity carrying water in a sieve or perforated jug.
The myth of the Danaids is found in numerous written accounts from antiquity, such as in the writings of Apollodorus, Pindar, and Pausanius. The names of the Danaids are inscribed in lists from Apollodorus and Hyginus, though they differ greatly.