In Greek mythology, Carnus (also spelled Carneus and Carneius) (Ancient Greek: Κάρνος) was a seer from Acarnania, who was instructed in the art of divination by Apollo. According to the poet Praxilla, he was a son of Europa, who was brought up by Apollo and Leto.^[1] Alternatively, he was Apollo's lover and friend in some accounts.^[2]

Carnus accompanied the Heracleidae, and was killed by Hippotes with a spear for giving obscure prophecies. Apollo then struck the Dorians with plague; having consulted an oracle, they banished Hippotes from their camp and established a cult of Apollo Carneius with the institution of the Carneia to propitiate the god.^[3]

• Conon, Fifty Narrations, surviving as one-paragraph summaries in the Bibliotheca (Library) of Photius, Patriarch of Constantinople translated from the Greek by Brady Kiesling. Online version at the Topos Text Project.

• Pausanias, Description of Greece with an English Translation by W.H.S. Jones, Litt.D., and H.A. Ormerod, M.A., in 4 Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1918. Online version at the Perseus Digital Library
• Pausanias, Graeciae Descriptio. 3 vols. Leipzig, Teubner. 1903. Greek text available at the Perseus Digital Library.
• Scholia on Theocritus, Idyll 5.83