In Greek and Roman mythology, Glaucus (Greek: Γλαῦκος, Glaukos, "glaring (eyes)"; compare Greek glaux, owl, of the same origin) is the symbolic Owl of Athena or Minerva, respectively. Often referred to as the "owl of Athena" or "owl of Minerva", it accompanies Minerva in Roman myths, seen as a symbol of wisdom because the owl is capable of seeing even in the dark and of vigilance because the owl is awake at night.

The nineteenth-century idealist philosopher Georg Wilhelm Friedrich Hegel famously noted that "the owl of Minerva spreads its wings only with the falling of the dusk"  meaning that philosophy comes to understand a historical condition just as it passes away. Philosophy cannot be prescriptive because it understands only in hindsight.

============================