The 2004 Superettan was part of the 2004 Swedish football season, and the fifth season of Superettan, Sweden's second-tier football division in its current format. A total of 16 teams contested the league.
It was contested by 16 teams, and BK Häcken won the championship.
<onlyinclude></onlyinclude>
<small>(Minimum of 10 games played)</small>