2003 Allsvenskan
Allsvenskan 2003, part of the 2003 Swedish football season, was the 79th Allsvenskan season played. The first match was played 5 April 2003 and the last match was played 26 October 2003. Djurgårdens IF won the league ahead of runners-up Hammarby IF, while Östers IF and Enköpings SK were relegated.
Participating clubs
| Club | Last season | First season in league | First season of current spell |
| AIK | 5th | 1924–25 | 1981 |
| Djurgårdens IF | 1st | 1927–28 | 2001 |
| Enköpings SK | 2nd | 2003 | 2003 |
| IF Elfsborg | 10th | 1926–27 | 1997 |
| IFK Göteborg | 12th | 1924–25 | 1977 |
| Halmstads BK | 6th | 1933–34 | 1993 |
| Hammarby IF | 9th | 1924–25 | 1998 |
| Helsingborgs IF | 4th | 1924–25 | 1993 |
| Landskrona BoIS | 11th | 1924–25 | 2002 |
| Malmö FF | 2nd | 1931–32 | 2001 |
| GIF Sundsvall | 8th | 1965 | 2000 |
| Örebro SK | 7th | 1946–47 | 1989 |
| Örgryte IS | 3rd | 1924–25 | 1995 |
| Östers IF | 1st | 1968 | 2003 |