"Contrail" is a song recorded by Japanese recording artist Namie Amuro for her eleventh studio and second bilingual (Japanese and English language) album, Feel (2013). The track was entirely written, composed, arranged, and produced by Japanese musician Nao'ymt. The single premiered on May 29, 2013 as the lead single from the album, and her second digital-only single. Musically, "Contrail" is a dance song, influenced by electronic dance music. Lyrically, it is a self-empowerment anthem that discusses themes of confidence and hope.

Upon its release, the track garnered generally favorable reviews from music critics. Many critics highlighted as one of the album's best tracks, and complimented Nao'ymt's songwriting and production. Although it was unable to chart on Japan's Oricon Singles Chart because of their restriction of digital sales, it did achieve success on the Japan Hot 100 chart provided by Billboard, peaking at number eight. It was certified platinum by the Recording Industry Association of Japan (RIAJ) for digital sales of 250,000 units. An accompanying music video was shot in downtown Los Angeles, California at Pershing square, which featured Amuro walking through the city with children. Amuro has performed the song on her Feel Tour (2013), and her 2014 Live Style Tour.

In March 2013, Japanese network Tokyo Broadcasting System (TBS) approached Namie Amuro and asked if she could record a theme song for their 2013 television series Flying Public Relations Office, which she accepted. Then in May 2013, Japanese music magazine CD Journal confirmed the release of a new single, entitled "Contrail". The track was entirely written, composed, arranged, and produced by Japanese musician Nao'ymt. It was recorded by D.O.I. at Daimonion Studios, Shibuya, Tokyo in 2013. The finished composition was then mastered by American music engineer Cris Gehringer at Sterling Studios, New York City, New York.

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