Twelve were the main gods who were worshiped in ancient Greece and they were are said to have lived on the top of Olympus.
Athena, the wise warrior goddess
Athena
Apollo, protector of the Oracles and the Sun
Apollo
Ares, the God of War
Ares
Artemis, the protector goddess of wild animals, mountains and forests
Artemis
Δήμητρα, η θεά της γεωργίας, των καρπών και των σιτηρών
Demeter
    
Hermes, the messenger of the Gods and conductor of souls to the afterworld
Hermes
Hera, the Goddess of Marriage
Hera

Aphrodite the enchanting goddess of beauty and Cyprus
Aphrodite

Zeus, the king of the Gods and of all Humanity
Zeus
Poseidon, the ruler of the Seas and protector of Horses
Poseidon
Hestia protector of Home
Hestia

Hephaestus, the craftsman fire God and master of metals
Hephaestus