This is a list of the best-selling singles in 1990 in Japan, as reported by Oricon.[1]
| Ranking | Single | Artist | Release | Sales |
|---|---|---|---|---|
| 1 | "Odoru Pompokolin" | B.B.Queens | 1,308,000 | |
| 2 | "Roman Hikō" | Kome Kome Club | 619,000 | |
| 3 | "Kiss Me (Ima sugu Kiss Me)" | Lindberg | 610,000 | |
| 4 | "Sayonara Jinrui" | Tama | 577,000 | |
| 5 | "Oh Yeah!" | Princess Princess | 568,000 | |
| 6 | "Dear Friend" | Akina Nakamori | 548,000 | |
| 7 | "Jōnetsu no Bara" | The Blue Hearts | 511,000 | |
| 8 | "Kuchibiru kara Biyaku" | Shizuka Kudō | 489,000 | |
| 9 | "Manatsu no Kajitsu" | Southern All Stars | 474,000 | |
| 10 | "If We Hold on Together" | Diana Ross | 462,000 | |