One (disambiguation)

One may refer to:
 * One, a song by 251c featuring SeeU.
 * One By One, a song by Ady S featuring SONiKA.
 * One Last Kiss, a song by Ady S featuring SONiKA.
 * One on my mind, a song by coralmines featuring AVANNA.
 * one more kiss, a song by OSTER Project featuring Megurine Luka.
 * One More Time, a song by Springhead featuring SeeU.
 * One Night Disco, a song by nana featuring Megurine Luka.
 * One Night Fairy Tale, a song by Faye-P featuring Hatsune Miku.
 * ONE NIGHT PIECE, a song by Natsuzora-P featuring Nekomura Iroha.
 * One Room, All that Jazz!, a song by DATEKEN featuring Hatsune Miku.
 * One Step Ahead, a song by KEI featuring IA.
 * One step forward, a song by Alexoualexou featuring Prima.
 * One Step Layered, a song by Last Note. featuring Hatsune Miku and Megurine Luka.
 * One Thing I Regret, a song by DJ Ithiel featuring SONiKA.
 * One Thousand Paper Snowflakes, a song by MJQ featuring Hatsune Miku.
 * One Time Summer, a song by Hanapo featuring KYO and WIL.
 * One Two Hello, a song by Ishifuro featuring IA.
 * One, Two, Three, Four!, a song by Aruka-P featuring Aoki Lapis.