In Greek mythology, Idmon (Ancient Greek: Ἴδμων means "having knowledge of" or "the knowing") may refer to the following individuals:

• Idmon, one of the fifty sons of Aegyptus, who married and was killed by the Danaid Pylarge.^[1]
• Idmon, father of Arachne,^[2] and perhaps her brother Phalanx too.
• Idmon, an Argonaut seer and son of Apollo or Abas, and Princess Cyrene.^[3]
• Idmon, herald of Turnus.^[4]
• Idmon, a figure briefly mentioned in Statius' Thebaid. He came from Epidaurus and was portrayed in the poem cleansing Tydeus' wounds after a battle.^[5]

• Apollodorus, Apollodorus, The Library, with an English Translation by Sir James George Frazer, F.B.A., F.R.S. in 2 Volumes. Cambridge, Massachusetts, Harvard University Press; London, William Heinemann Ltd. 1921. Online version at the Perseus Digital Library.
• Vergil, Aeneid. Theodore C. Williams. trans. Boston. Houghton Mifflin Co. 1910. Online version at the Perseus Digital Library.
• Statius, The Thebaid translated by John Henry Mozley. Loeb Classical Library Volumes. Cambridge, MA, Harvard University Press; London, William Heinemann Ltd. 1928. Online version at the Topos Text Project.
• Grimal, Pierre. Entry for Idmon. The Dictionary of Classical Mythology. Blackwell, 1986. ISBN 0-631-20102-5.
• Seaton, R.C. (editor and translator). Apollonius Rhodius: Argonautica. Cambridge, Massachusetts: Harvard University Press, 1912.
• William Smith, Dictionary of Greek and Roman Biography and Mythology, v. 2, page 562, under Idmon