2004 K League Championship
The 2004 K League Championship was the eighth competition of the K League Championship, and was held to decide the 22nd champions of the K League. After the regular season was finished, the first stage winners, the second stage winners, and the top two clubs in the overall table qualified for the championship. Each semi-final was played as a single match, and the final consisted of two matches.
Qualified teams
| Club | Placement |
| Pohang Steelers | First stage winners |
| Suwon Samsung Bluewings | Second stage winners Overall table 2nd place |
| Ulsan Hyundai Horang-i | Overall table 1st place |
| Jeonnam Dragons | Overall table 3rd place |