In ancient Greek religion, Phoebe (/ˈfiːbi/; Greek: Φοίβη Phoibe, associated with Phoebos or "shining")' was one of the original Titans, who were one set of sons and daughters of Uranus and Gaia. She was traditionally associated with the moon (see Selene), as in Michael Drayton's Endimion and Phœbe (1595), the first extended treatment of the Endymion myth in English. Her consort was her brother Coeus, with whom she had two daughters, Leto, who bore Apollo and Artemis, and Asteria, a star-goddess who bore an only daughter Hecate. Given the meaning of her name and her association with the Delphic oracle, Phoebe was perhaps seen as the Titan goddess of prophecy and oracular intellect.
Through Leto, Phoebe was the grandmother of Apollo and Artemis. The names Phoebe and Phoebus (masculine) came to be applied as synonyms for Artemis and Apollo respectively (as well as for Selene and Helios).
According to a speech that Aeschylus, in Eumenides, puts in the mouth of the Delphic priestess herself, she received control of the Oracle at Delphi from Themis: "Phoebe in this succession seems to be his private invention," D. S. Robertson noted, reasoning that in the three great allotments of oracular powers at Delphi, corresponding to the three generations of the gods, "Ouranos, as was fitting, gave the oracle to his wife Gaia and Kronos appropriately allotted it to his sister Themis."