Ceres is the Roman equivalent of Demeter

Ceres is regarded as the goddess of agriculture, grain crops, fertility, and maternal bonds in Roman mythology. She was credited with imparting the knowledge necessary for mankind to cultivate, preserve, and cook grain and maize. She also could reproduce, fertilize, and fructify animals and plant seeds. Because of this, Ceres is viewed as Demeter's polar opposite in Greek mythology.

The mythology surrounding Demeter is reinterpreted in Roman art and literature with Ceres taking on her persona. Around 205 BC, the formal fusion of Demeter and Ceres worship took place. Ceres was one of the Dii Consentes, the twelve principal goddesses of the Roman pantheon, just as Demeter was one of the twelve Olympian Gods. Furthermore, Ceres was celebrated by a significant Roman celebration called Cerealia, just as Demeter was honored by the Thesmophoria festival.