Raison D'etre (disambiguation)

Raison D'etre may refer to:
 * Яaison D'etre, a song by LIQ featuring Hatsune Miku.
 * Raison D'être, a song by NiitoP featuring MEIKO or Hatsune Miku.'
 * Raison D'être no Hana, a song by 40MeterP featuring GUMI.
 * Raison D'être of Love, a song by MachigeritaP featuring Megurine Luka.
 * Raison D'être, Please, a song by YM featuring GUMI.
 * Raison D'être no Shoumei, a song by Limaria featuring MAYU.