Voyage (Ayumi Hamasaki song)

"Voyage" is the 28th single released by Japanese singer Ayumi Hamasaki, serving as the third and final single for her fifth studio album, Rainbow (2002). It was released by Avex Trax in Japan and Hong Kong on September 26, 2002. The track was written by the singer herself, while the composition was done by the singer herself under the pseudonym Crea with the assistance of Dai Nagao. Production was handled by long-time collaborator Max Matsuura. Musically, the song is a power ballad that lyrically describes the themes of fate, destiny, and finding one's true love.

Upon its release, "Voyage" received positive reviews from music critics, praising its production quality and describing it as "graceful." Commercially, the single experienced success in Japan, spending three consecutive weeks at number one on both the Oricon Singles Chart and Tokyo Broadcasting System's (TBS) Count Down TV singles chart. It went on to ship over 750,000 copies, and was certified triple platinum by the Recording Industry Association of Japan (RIAJ). It became one of the most successful songs in Japan of 2002, and won the 44th Japan Record Awards' grand prix by the end of the year.

"Voyage" was used as the theme song of the Japanese film Tsuki ni Shizumu, which was created in lieu of a music video for the single. In order to promote the single, it appeared on several remix and greatest hits albums and live concert tours conducted by Hamasaki. It was also used as the opening theme of the dorama My Little Chef, which starred Hiroshi Abe and Aya Ueto.