Niji (disambiguation)

Niji may refer to:
 * Niji, a song by Musuka-P featuring Kagamine Len.
 * Niji, a song by TKN featuring GUMI.
 * Niji, a song by whoo featuring Hatsune Miku.
 * Nijiiro Adventure, a song by sasakure.UK featuring Hatsune Miku.
 * Niji-iro Chouchou, a song by Kurousa-P featuring Hatsune Miku.
 * Nijiiro Cider, a song by Tezuka featuring flower.
 * Niji no Kyousoukyoku, a song by toya featuring multiple VOCALOIDs.
 * Nijiiro Monster, a song by monaca:factory featuring Rana.
 * Nijiiro Palette, a song by MelonteaP featuring Kagamine Rin.
 * Nijiiro Palette, a song by Tomoya featuring Hatsune Miku.
 * Nijiiro no Shounen, a song by Kid-P featuring Kagamine Len.