Idée fixe may refer to:
- Idée fixe (psychology), a psychological disorder
- Idée Fixe (album), a 1978 album by Aerolit
- Dogmatix, the English name of an Asterix comics character, called Idéfix in French
- Idée fixe (music), a recurring theme or motif, as in the Symphonie fantastique by Hector Berlioz
See also
- Fixation (disambiguation)
- Leitmotif, a recurring musical phrase used as an element of musical structure
If an internal link led you here, you may wish to change the link to point directly to the intended article. Category: