Arch Demon may refer to:
- The enemy from Final Fantasy XI.
- The enemy and genus from Final Fantasy XIV.
- The enemy from Final Fantasy: The 4 Heroes of Light.
- The enemy from Bravely Default.
archdemon is a spiritual entity, prominent in the infernal hierarchy as a leader of the infernal host. Essentially, an archdaemon is the counterpart of an archangel.In Biblical tradition, an