Cornelian (disambiguation)

Cornelian (usually spelled "carnelian") is a reddish-brown variety of the mineral chalcedony.

Cornelian may also refer to:
 * Cornelian automobile, a 1914 racing vehicle
 * Cornelian Bay (disambiguation), multiple places
 * Cornelian dilemma, a dilemma named after dramatist Pierre Corneille
 * Cornelia (gens), an important gens in ancient Rome
 * Deudorix epijarbas, an Asian butterfly
 * A variety of plants in the dogwood family including
 * Cornus florida
 * Cornelian cherry
 * Japanese cornelian cherry