The highest-selling singles in Japan are ranked in the Oricon Singles Chart, which in 1986 was published in what was then called Oricon Weekly magazine. The data are compiled by Oricon based on each singles' physical sales. This list includes the singles that reached the number one place on that chart in 1986.

Oricon Weekly Singles Chart

Issue dateSongArtist(s)Ref.January 6""Akiko KobayashiJanuary 13""Eri NittaJanuary 20January 27February 3""Ushiroyubi SasaregumiFebruary 10"Kuchibiru Network"Yukiko OkadaFebruary 17"Desire (Jōnetsu)"Akina NakamoriFebruary 24Momoko KikuchiMarch 3"Jā ne"Onyanko ClubMarch 10""Akie YoshizawaMarch 17March 24""Misato WatanabeMarch 31""Sonoko KawaiApril 7April 14""NyangilasApril 21""Eri NittaApril 28May 5"Otto CHIKAN!"Onyanko ClubMay 12""Ushiroyubi SasaregumiMay 19""Sayuri KokushōMay 26""Momoko KikuchiJune 2""Satomi FukunagaJune 9"Gypsy Queen"Akina NakamoriJune 16""The CheckersJune 23""Sanae JonouchiJune 30""NyangilasJuly 7""Mamiko TakaiJuly 14""Sonoko KawaiJuly 21""ShonentaiJuly 28""Minayo WatanabeAugust 4"Osaki ni Shitsurei"Onyanko ClubAugust 11""Eri NittaAugust 18""August 25""Sayuri KokushōSeptember 1"Aozora no Kakera"Yuki SaitoSeptember 8""Ushiroyubi SasaregumiSeptember 15""Momoko KikuchiSeptember 22""Akie YoshizawaSeptember 29""Mamiko TakaiOctober 6"Fin"Akina NakamoriOctober 13""Akemi IshiiOctober 20""Marina WatanabeOctober 27""Minayo WatanabeNovember 3""Sonoko KawaiNovember 10"Koi wa Question"Onyanko ClubNovember 17""November 24""Eri NittaDecember 1""Ushiroyubi SasaregumiDecember 8""ShonentaiDecember 15""Sayuri KokushōDecember 22""C-C-BDecember 29""Mamiko Takai

See also 1986 in Japanese music

References Oricon No.1 Hits 500. Clubhouse (Japanese: クラブハウス). 1998. ISBN 9784906496136. vol 2 (1986~1994).