Psion or variant may refer to:
- The J/ψ meson
- a person with psionic ability
- Psions (Freedom City), a fictional adversary group in Freedom City
- Psions, a fictional group in the game Adventure!
- Psion (comics), an alien race in stories from DC Comics
- Psion (想子), a fictional substanceless particle and psychic phenomenon, the basis of magic in The Irregular at Magic High School
- Psion, a novel by Joan D. Vinge
- Psion, an alien species with extraordinary powers enslaved by the Cabal in the game Destiny (video game)
- Psion (company), a manufacturer of handheld computer devices
- Rhon psion (Ruby psion), a group of telepaths in the Saga of the Skolian Empire novels
- Psi Corps, the agency in Babylon 5 responsible for humans with telepathic or other para-psychological abilities
disambiguation page lists articles associated with the title Psion.
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