Demon could refer to:

• Demon, various mythological demons that have been referenced
• "Demon", a Star Trek: Voyager episode

It might also refer to:

• "Demons of Air and Darkness", name sometimes used to describe the ancient civilization from Iconia
• "Demon planet", the nickname for an inhospitable class of planet
• The Demon with the Golden Voice, an ancient Talaxian folktale

See alsoEdit

• The following episodes:
  • VOY: "Heroes and Demons"
  • ENT: "Demons"
• The following novels:
  • Pocket TOS: Demons
  • Pocket DS9: Demons of Air and Darkness