Rainbow may refer to:
- "Rainbow", a song by Clouds P featuring Megurine Luka.
- "Rainbow", a song by Kide featuring Chiyu.
- "Rainbow", a song by Louis featuring Kasane Teto.
- "Rainbow", a song by Nebula Pro 2 featuring CYBER DIVA.
- "RAINBOW", a song by saei featuring Arsloid.
- "Rainbow", a song by Samfree featuring Hatsune Miku.
- "RAINBOW", a song by Hanrich Luck featuring Hatsune Miku.
- "Rainbow", a song by Masayoshi_n featuring Hatsune Miku.
- "Rainbow", a song by TokuP featuring Hatsune Miku.
- "rainbow", a song by Udon Timer-P featuring Hatsune Miku.
- "Rainbow" (レインボウ), a song by EVERGREEN LELAND STUDIO featuring Hatsune Miku.
- "Rainbow" (虹 (Niji)), a song by Honda Kengo featuring Sachiko.
- "Rainbow" (虹 (Niji)), a song by Komso featuring Kagamine Len.
- "Rainbow" (虹 (Niji)), a song by TKN featuring GUMI.
- "rainbow", a song by TONE featuring Eleanor Forte.
- "Rainbow" (虹 (Niji)), a song by whoo featuring Hatsune Miku.
- "Rainbow! Adventure!" (Rainbow!冒险! (Rainbow! Màoxiǎn!)), a song by PoKeR featuring Luo Tianyi.
- "Rainbow-colored Chocolate" (虹色チョコレート (Nijiiro Chocolate)), a song by Mind featuring Hatsune Miku.
- "Rainbow Colored Tomorrow" (무지개빛 내일 (Mujigaebit Naeil)), a song by mitssi featuring SeeU.
- "Rainbow's Concerto" (虹の協奏曲 (Niji no Kyousoukyoku)), a song by toya featuring multiple VOCALOIDs.
- "Rainbow Conch", a song by DQ featuring UNI.
- "Rainbow Connection", a song by OreginalP featuring Megurine Luka.
- "rainbow days", a song by Death Ohagi featuring Kagamine Rin and Kasane Teto.
- "Rainbow Dream" (彩虹薇梦 (Cǎihóng Wēi Mèng)), a song by Mimi and Ruorose featuring Yuezheng Ling
- "Rainbow line", a song by JevanniP featuring Kagamine Rin.
- "Rainbowder" (レインボーダー), a song by DECO*27 featuring Hatsune Miku.
- "Rainbow Coloured Adventure" (ニジイロ*アドベンチュア (Nijiiro*Adventure)), a song by sasakure.UK featuring Hatsune Miku.
- "Rainbow Coloured Boy" (虹色の少年 (Nijiiro no Shounen)), a song by KidP featuring Kagamine Len.
- "Rainbow Coloured Butterfly" (虹色蝶々 (Nijiiro Chouchou)), a song by KurousaP featuring Hatsune Miku.
- "Rainbow Coloured Cider" (虹色サイダー (Nijiiro Cider)), a song by Tezuka featuring flower.
- "Rainbow Coloured Monster" (にじいろモンスター (Nijiiro Monster)), a song by monaca:factory featuring Rana.
- "Rainbow Coloured Palette" (虹色パレット (Nijiiro Palette)), a song by MelonteaP featuring Kagamine Rin.
- "Rainbow Coloured Palette" (虹色パレット (Nijiiro Palette)), a song by Tomoya featuring Hatsune Miku.
- "Rainbow Quest", a song by IyaiyaP featuring Hatsune Miku.
- "Rainbow Sherbet", a song by GHOST DATA featuring Megurine Luka.
See also Niji (disambiguation).