An imaginarium is a type of place dedicated to imagination.

Imaginarium may also refer to:

• The Imaginarium Studios, a motion capture studio founded by Andy Serkis
• Imaginarium SA, a Spain-based toy company founded in 1992.
• Imaginaerum, a 2011 Nightwish album (former name Imaginarium)
  • Imaginaerum (film), a film based upon the Nightwish album
• Songs from the Neverhood, a 2004 soundtrack album
• The Imaginarium of Doctor Parnassus, a 2009 film
• Imaginarium (Morifade album), 2002

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