The name of the goddess of the harvest in ancient Greek mythology is Demeter. She is revered as the goddess of grain, agriculture, and fertility, crucial for the sustenance of society. Demeter’s most famous myth involves her daughter, Persephone, whose abduction by Hades led to the seasons' cyclical nature: Demeter’s grief causes winter, while her joy brings forth spring and summer. Festivals like the Eleusinian Mysteries celebrated Demeter, highlighting her importance in agriculture and the profound connection between nature and human culture.