| Season | 2004 |
|---|---|
| Champions | Yokohama F. Marinos 3rd J.League title 5th Japanese title |
| AFC Champions League | Yokohama F. Marinos Júbilo Iwata |
| Matches played | 240 |
| Goals scored | 744 (3.1 per match) |
| Top goalscorer | Emerson Sheik (27 goals) |
| Highest attendance | 58,334 (Round 24, Reds vs. Marinos) |
| Lowest attendance | 4,429 (Round 5, Gamba vs. JEF United) |
| Average attendance | 18,965 |
← 2003 2005 → | |
The 2004 J.League Division 1 season was the 12th season of the J1 League. The league fixture began on March 13 and ended on December 12, 2004. The Suntory Championship 2004 took place on December 5 and December 11. The first ever J. League promotion/relegation series took place on December 4 and December 12.