2005 Allsvenskan
Allsvenskan 2005, part of the 2005 Swedish football season, was the 81st Allsvenskan season played. The first match was played 9 April 2005 and the last match was played 23 October 2005. Djurgårdens IF won the league ahead of runners-up IFK Göteborg, while Landskrona BoIS, GIF Sundsvall and Assyriska Föreningen were relegated.
Participating clubs
| Club | Last season | First season in league | First season of current spell |
| Assyriska Föreningen | 3rd | 2005 | 2005 |
| Djurgårdens IF | 4th | 1927–28 | 2001 |
| IF Elfsborg | 9th | 1926–27 | 1997 |
| Gefle IF | 2nd | 1933–34 | 2005 |
| IFK Göteborg | 3rd | 1924–25 | 1977 |
| Halmstads BK | 2nd | 1933–34 | 1993 |
| Hammarby IF | 6th | 1924–25 | 1998 |
| Helsingborgs IF | 10th | 1924–25 | 1993 |
| BK Häcken | 1st | 1983 | 2005 |
| Kalmar FF | 5th | 1949–50 | 2004 |
| Landskrona BoIS | 11th | 1924–25 | 2002 |
| Malmö FF | 1st | 1931–32 | 2001 |
| GIF Sundsvall | 7th | 1965 | 2000 |
| Örgryte IS | 12th | 1924–25 | 1995 |
League table
Relegation play-offs
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GAIS won 2–1 on aggregate.
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