Oceanus
Ὠκεανός
A vast water flowing in a ring around the whole earth.
To the Greeks, Oceanus was less a sea than an endless river encircling the land.
With Tethys, he is said to have fathered three thousand rivers and three thousand water nymphs.
He is a rare case: a Titan who stayed out of the war and so was never punished.
SourcesHesiod, Theogony