The highest-selling singles in Japan are ranked in the weekly Oricon Singles Chart, which is published by Oricon Style magazine. The data are compiled by Oricon based on each singles' weekly physical sales. This list includes the singles that reached the number one place on that chart in 2015.
Chart history Issue dateSongArtist(s)Ref.January 5"Thank You Jan!"Kis-My-Ft2January 12"Genkidane"Kamen JoshiJanuary 19"Kaguya"NEWSJanuary 26"Uchōten"B'zFebruary 2"Dead or Alive"KAT-TUNFebruary 9"Guilty Love"2PMFebruary 16"Zundoko Paradise"Johnny's WestFebruary 23"Kioku / Kokoro Odoreba"Subaru ShibutaniMarch 2"Karei Naru Gyakushu / Humor Sichau yo"SMAPMarch 9"Sakura"ArashiMarch 16"Green Flash"AKB48March 23"Kiss Kiss Kiss"KAT-TUNMarch 30"Inochi wa Utsukushii"Nogizaka46April 6"Kiss Damashii"Kis-My-Ft2April 13"Coquettish Jūtai Chū"SKE48April 20"Wonderful World / Ça va? Ça va?"Juice=JuiceApril 27"Starting Over"Sandaime J Soul BrothersMay 4"12 Byō"HKT48May 11"Chau/I Need You"Hey! Say! JUMPMay 18"Timeless"V6May 25"Aozora no Shita, Kimi no Tonari"ArashiJune 1"Bokutachi wa Tatakawanai"AKB48June 8June 15"Tsuyoku Tsuyoku Tsuyoku"Kanjani EightJune 22"Red"B'zJune 29"For You"BTSJuly 6"Chumu Chumu"NEWSJuly 13"Cha Cha Cha"Sexy ZoneJuly 20"Summer Madness"Sandaime J Soul Brothers featuring AfrojackJuly 27"Dorian Shōnen"NMB48August 3"Taiyō Nokku"Nogizaka46August 10"Bari Hapi"Johnny's WestAugust 17"Maemuki Scream!"Kanjani EightAugust 24"Mae Nomeri"SKE48August 31"I am a HERO"Masaharu FukuyamaSeptember 7"Halloween Night"AKB48September 14"Ai o Sakebe"ArashiSeptember 21"Otherside / Ai ga Tomaru Made wa"SMAPSeptember 28"All For You"Generations from Exile TribeOctober 5"SOS / Present"Sekai no OwariOctober 12"Moonlight Walker"A.B.C-ZOctober 19"Must Be Now"NMB48October 26"AAO"Kis-My-Ft2November 2"Kimi Attraction"Hey! Say! JUMPNovember 9"Ima, Hanashitai Dareka ga Iru"Nogizaka46November 16"Love Me Right (Romantic Universe)"ExoNovember 23"Saigo mo Yappari Kimi"Kis-My-Ft2November 30"Yume wo Mireba Kizutsuku Kotomo Aru"Kinki KidsDecember 7"Shekarashika!"HKT48 ft.KishidanDecember 14"Samurai Song"Kanjani EightDecember 21"Kuchibiru ni Be My Baby"AKB48December 28"Colorful Eyes"Sexy Zone
References
See also 2015 in Japanese music