Raison D'etre (disambiguation)

Raison D'etre may refer to:
*, a song by AmeKinoko featuring KAITO and MEIKO.
*, a song by Kodakami featuring DEX and DAInA.
*, a song by LIQ featuring Hatsune Miku.
*, a song by NiitoP featuring MEIKO or Hatsune Miku.
*, a song by 40MeterP featuring GUMI.
*, a song by MachigeritaP featuring Megurine Luka.
*, a song by YM featuring GUMI.
*, a song by Limaria featuring MAYU.
*Raison d'être, a song series by Nou