List of best-selling singles in 1990 (Japan)
# List of best-selling singles in 1990 (Japan)

This is a list of the best-selling singles in 1990 in Japan, as reported by Oricon.

| Ranking | Single | Artist | Release | Sales |
| - | - | - | - | - |
| 1 | "Odoru Pompokolin" | B.B.Queens | April 4, 1990 (1990-04-04) | 1,308,000 |
| 2 | "Roman Hikō" | Kome Kome Club | April 8, 1990 (1990-04-08) | 619,000 |
| 3 | "Kiss Me (Ima sugu Kiss Me)" | Lindberg | February 7, 1990 (1990-02-07) | 610,000 |
| 4 | "Sayonara Jinrui" | Tama | May 5, 1990 (1990-05-05) | 577,000 |
| 5 | "Oh Yeah!" | Princess Princess | April 21, 1990 (1990-04-21) | 568,000 |
| 6 | "Dear Friend" | Akina Nakamori | July 17, 1990 (1990-07-17) | 548,000 |
| 7 | "Jōnetsu no Bara" | The Blue Hearts | July 25, 1990 (1990-07-25) | 511,000 |
| 8 | "Kuchibiru kara Biyaku" | Shizuka Kudō | January 10, 1990 (1990-01-10) | 489,000 |
| 9 | "Manatsu no Kajitsu" | Southern All Stars | July 25, 1990 (1990-07-25) | 474,000 |
| 10 | "If We Hold on Together" | Diana Ross | January 25, 1990 (1990-01-25) | 462,000 |
