Council of Nine can refer to:
In Greek mythology, when Prometheus gave Fire to mankind, he infuriated Zeus, so to punish Prometheus, Zeus had him chained to a rock and every day an eagle came down and ate his liver. Because he was immortal, the liver grew back and the eagle returned to do the same to him the next day. To punish mankind, Zeus and eight other deities gathered to form the Council of Nine. The council members were Aphrodite, Apollo, Athena, Demeter, Hephaestus, Hera, Hermes, Poseidon and Zeus.
Together this council created Pandora, and sent her, as a gift, to Epimetheus. Epimetheus was also given Pandora's Box, and told to never open it. Curiosity got the better of Pandora and she opened the box, releasing all of the misfortunes of Mankind.
The council that governs the Church of Satan call themselves the Council of Nine.
The Republic of Siena in Italy was ruled by the Council of Nine during early renaissance. Its members were changed every two months.