Psion

Psion or Psions may refer to:

Comics

 * Psion (comics), a DC Comics alien species
 * Psion (想子), a fictional non-physical particle and psychic phenomenon, the basis of magic in the manga series The Irregular at Magic High School

Gaming

 * Psion (role-playing games) a character class in role-playing games
 * Psion (Dungeons & Dragons), a character class in Dungeons & Dragons
 * Psions (Freedom City), a supervillain team in the campaign setting Freedom City
 * Psions, a fictional species with psychic powers in the role-playing game Trinity
 * Psions, a fictional alien species with psychic powers assimilated by the Cabal Empire in the video game series Destiny
 * Psions, a category of antagonists in the video game Into the Breach

Literature

 * Psion, a fictitious "unit of mental energy" in the 1951 novella The Greatest Invention by Jack Williamson
 * Psion, a person with psionic abilities
 * Psion, a 1982 novel by Joan D. Vinge
 * Rhon psions, or Ruby psions, a fictional group of empaths and telepaths in the novel series Saga of the Skolian Empire

Science

 * Psion, the J/psi meson (discovered 1974)

Computing

 * Psion (company), a British mobile computer company
 * Psion Organiser (1984)
 * Psion MC (1989)
 * Psion Series 3 (1991)
 * Psion Siena (1996)
 * Psion Series 5 (1997)
 * Psion Revo (1999)
 * Psion netBook (1999)
 * Psion Series 7 (2000)