A Nereid is a sea nymph in Greek mythology.

Nereid or Nereids may also refer to:

Nereid (moon), the third-largest moon of Neptune Nereid (worm), a polychaete worm Nereids (organization), a fictional organization in the anime series Daphne in the Brilliant Blue The Nereids, a lost tragedy by the Greek playwright Aeschylus assigned by modern scholars to the trilogy the Achilleis Nereid Avenue (IRT White Plains Road Line), a station of the New York City Subway Nereid Avenue, a major street in the Wakefield section of The Bronx, New York City Nereid (Dungeons & Dragons), fey beings similar to nymphs and dryads

See also French ship Néréide HMS Nereide Nereide (horse) Neriad Horseshoe Bat, a species of bat Nereida Nereidi, a sculpture in Helsinki, Finland