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 a few of the three thousand daughters of Oceanus and Tethys.
- Klymene: wife of Iapetus
- Doris: wife of the sea god Nereus, mother of the fifty Nereids
- Eidyia or Idyia: wife of Aeetes, mother of Medea
- Thaumas, mother of Iris, Arke and the Harpies
- Hagno: one of the nymphs that nursed infant Zeus
- Hesione: wife of Prometheus
- Metis: goddess of wisdom, first spouse of Zeus
- 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.