Nereid
In Greek mythology, the Nereids ( Nereides) are sea nymphs, the fifty daughters of Nereus, the Old Man of the Sea, and the Okeanid Doris.
Among them are:
Thetis - Wife of Peleus and mother of Achilles, she was often considered the leader of the Nereids.
Amphitrite - Wife of Poseidon and queen of the sea.
Galatea
Thoosa - mother of the Cyclops Polyphemus.
Dione (mythology)
Nymphs
Gods and goddesses of water