Each was the patroness of a particular spring, lake, river, sea, pond, pasture, flower, or cloud. Some of them were closely associated with the Titans such as Calypso, or personified abstract concepts, like Tyche. One of these many daughters was also said to have been the consort of the sea god Poseidon, typically named as Amphitrite.
Oceanus and Tethys also had three thousand sons, the river-gods called Potamoi. Whereas most sources limit the term Oceanids or Oceanides to the daughters, others include both the sons and daughters under this term.
The following are some of the three thousand daughters of Oceanus and Tethys.
- Metis: Zeus' first wife, whom Zeus impregnated with Athena and then swallowed
- Eurynome: Zeus' third wife, and mother of the Charites
- Callirhoe: the wife of Chrysaor and mother of Geryon
- Perseis: wife of Helios and mother of Circe, and Aeetes
- Klymene: wife of Iapetus and mother of Atlas, Menoetius, and Epimetheus
- Doris: wife of the sea god Nereus, mother of the fifty Nereids
- Eidyia or Idyia: wife of Aeetes and mother of Medea
- Thaumas or Electra: mother of Iris, Arke and the Harpies
- Hagno: one of the nymphs that nursed infant Zeus
- Hesione: wife of Prometheus
- Nemesis (according to some myths)
- They are called Oceanids, as their father is Oceanus.
- They are the 3,000 nymphs presiding over sources of fresh water, both heavenly (rain, moist breezes) and earthly (rivers, seas, springs).
- Some of them were also Aurai, and Elder Naiads.