This is a list of the best-selling singles in 2002 in Japan, as reported by Oricon.[1]
| Ranking | Single | Artist | Release | Sales | |
|---|---|---|---|---|---|
| 1 | "H" | Ayumi Hamasaki | 1,000,000 | ||
| 2 | "Traveling" | Hikaru Utada | 856,000 | ||
| 3 | "Wadatsumi no Ki" | Chitose Hajime | 839,000 | ||
| 4 | "Life goes on" | Dragon Ash | 804,000 | ||
| 5 | "Way of Difference" | Glay | 730,000 | ||
| 6 | "Sakura Drops" | Hikaru Utada | 686,000 | ||
| 7 | "My Grandfather's Clock" | Ken Hirai | 667,000 | ||
| 8 | "Ai no Uta" | Strawberry Flower | 632,000 | ||
| 9 | "Voyage" | Ayumi Hamasaki | 628,000 | ||
| 10 | "Hikari" | Hikaru Utada | 598,000 |