Demon (disambiguation)

Demon could refer to:
 * Demon, various mythological demons that have been referenced
 * , 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