- Hades – The god of the underworld, death, and the dead. As mentioned, he is not counted among the Olympians.
- Hestia – The goddess of the hearth, home, and family. She was one of the original Olympians but gave up her seat to Dionysus.
- Helios – The titan god of the sun. He is often conflated with the Olympian god Apollo.
- Selene – The titan goddess of the moon. She is sometimes associated with the Olympian goddess Artemis.
- Eos – The titan goddess of the dawn.
- Hyperion – The titan god of light, solar energy, brightness, and watchfulness.
- Themis – The titaness of justice, law, order, and customs.
- Gaia – The primordial goddess of the earth.
- Uranus – The primordial god of the heavens.
- Chronos/Cronus – The titan god of time.
- Rhea – The titan goddess of fertility, motherhood, and the natural world.
- Perseus – The demigod hero famous for slaying Medusa.
- Hercules/Heracles – The famous demigod hero renowned for his strength and heroic deeds.
- Hecate – The titan goddess of magic.
- Oceanus: God of the Great River.
- Coeus: God of Intelligence and Inquiry.
- Crius: God of Heavenly Constellations.
- Iapetus: God of the Moral Life-cycle.
- Thea: Goddess of Sight and the Shining Atmosphere.
- Nemesis – Goddess of revenge
These are some of the major Greek deities that were not part of the 12 Olympians, representing a diverse array of natural, ancestral, and heroic figures in the rich Greek mythological tradition.