Ceras

Ceras may refer to:
 * the singular of Cerata, anatomical structures found in nudibranch sea slugs, marine opisthobranch gastropod mollusks
 * Ceras (gastropod), a mollusc genus in the family Achatinidae
 * Centre de Recherche et d’action sociales, a French association created in 1903 by Society of Jesus
 * "-ceras", a suffix used to describe many horned animals
 * Cera dynasty, an Indian dynasty that ruled over parts of southern India