Space Dementia

Space Dementia may refer to:
 * "Space Dementia" (song), by Muse
 * A fictional mental disorder, mentioned in several works:
 * "Space Madness", a season 1 episode of the animated series The Ren and Stimpy Show
 * Fragile Allegiance, a 1996 PC game
 * "Joyride", a 1999 episode of the TV series The Outer Limits
 * "The Train Job", an episode of the TV series Firefly
 * The feature film Armageddon
 * "Coup by Clam", an episode of the TV series Farscape