C. carnea may refer to:
Caladenia carnea, a terrestrial orchid Calocybe carnea, a pink-capped mushroom Canna carnea, a garden plant Chromodoris carnea, a sea slug Chrysoperla carnea, a common lacewing Columbella carnea, a sea snail Conferva carnea, a red algae Corynactis carnea, a colonial anthozoan Cypraea carnea, a sea snail