Norse
Sif
golden hair, grain (by later reading)
Roman tradition. See the whole pantheon.

Goddess of grain, with a temple on the Aventine as patron of the plebs. The myth of her daughter's abduction, in Ovid's Fasti, is the Greek one.
Greek counterpart: Demeter on thegreekgods.org. Roman and Greek versions share names and stories in many places but began as different cults.
Deities in other traditions who share a theme with Ceres: earth, harvest and fertility. This is overlap in one area only.
Norse
golden hair, grain (by later reading)
Norse
peace, fertility, sunshine
Egyptian
earth
Egyptian
afterlife, resurrection, fertility of the flood
Egyptian
Nile, fertility, kingship
Mesopotamian
grain, wind (as Enlil's wife)
Mesopotamian
mountains, birth, earth
Mesopotamian
shepherds, the dying and returning god