2015 in Japanese music

The year 2015 in Japanese music.

Notable events

 * The sold-out two-day Takashi Matsumoto Official 45th Anniversary Project event was held at the Tokyo International Forum on August 21 and 22, celebrating lyricist Takashi Matsumoto's career. Performances included Matsumoto reuniting with the other two surviving members of pioneering Japanese rock band Happy End.
 * 66th NHK Kōhaku Uta Gassen on December 31.

Number-ones

 * Oricon number-one albums
 * Oricon number-one singles
 * Hot 100 number-one singles

Best-selling albums
The following is a list of the top 10 best-selling albums in Japan in 2015, according to Oricon.

Best-selling singles
The following is a list of the top 10 best-selling singles in Japan in 2015, according to Oricon.

Awards

 * 57th Japan Record Awards
 * 2015 MTV Video Music Awards Japan

Debuting groups

 * 3776
 * Akishibu Project
 * Billie Idle
 * Bish
 * Camellia Factory
 * Earphones
 * Ebisu Muscats
 * Exo
 * Fate Gear
 * High4
 * The Hoopers
 * Idol Renaissance
 * Iginari Tohoku San
 * Kolme
 * La PomPon
 * Ladybaby
 * lol
 * Magnolia Factory
 * Mrs. Green Apple
 * Myth & Roid
 * Official Hige Dandism
 * OxT
 * Pasocom Music Club
 * The Peggies
 * Pentagon
 * POP
 * Srv.Vinci
 * Sora tob sakana
 * Suchmos
 * Tacoyaki Rainbow
 * Tahiti
 * Tokimeki Sendenbu
 * TrySail
 * Wednesday Campanella
 * Whiteeeen

Debuting soloists

 * Aimyon
 * Anly
 * Daoko
 * Inori Minase
 * Max Changmin
 * Reol
 * Sakura Fujiwara

Deaths

 * July 6 – Masabumi Kikuchi, Japanese-American pianist and composer (b. 1939)