|Full name||Idrottsklubben Sleipner|
|League||Division 2 Södra Svealand|
|2012||Division 1 Södra, 12th (relegated)|
Idrottsklubben Sleipner is a sports club in Norrköping, Sweden; the main sports are football and ten-pin bowling. It was founded in 1903, and named after Odin's horse Sleipnir. Currently, the club's senior men's team plays football in Division 2. They are mostly known for winning Allsvenskan in 1938, but have since been overshadowed by local rivals IFK Norrköping both locally and nationally. The club is affiliated to the Östergötlands Fotbollförbund.
- Winners (1): 1937–38
- Runners-up (1): 1936–37
Season to season
* League restructuring in 2006 resulted in a new division being created at Tier 3 and subsequent divisions dropping a level. 
Note: Flags indicate national team as has been defined under FIFA eligibility rules. Players may hold more than one non-FIFA nationality.
In recent seasons IK Sleipner have had the following average attendances:
* Attendances are provided in the Publikliga sections of the Svenska Fotbollförbundet website. 
- A. ^ The title of "Swedish Champions" has been awarded to the winner of four different competitions over the years. Between 1896 and 1925 the title was awarded to the winner of Svenska Mästerskapet, a stand-alone cup tournament. No club were given the title between 1926 and 1930 even though the first-tier league Allsvenskan was played. In 1931 the title was reinstated and awarded to the winner of Allsvenskan. Between 1982 and 1990 a play-off in cup format was held at the end of the league season to decide the champions. After the play-off format in 1991 and 1992 the title was decided by the winner of Mästerskapsserien, an additional league after the end of Allsvenskan. Since the 1993 season the title has once again been awarded to the winner of Allsvenskan.
- "Kontaktuppgifter och tävlingar – Östergötlands Fotbollförbund - Svenskfotboll.se". Retrieved 2011-01-12.
- "GAIS - Lagfacta - IK Sleipner". Retrieved 07.09.2010.
- "Kontaktuppgifter och tävlingar - Svenska Fotbollförbundet - svenskfotboll.se". Retrieved 2010-12-09.
- "Svenska mästare 1896–1925, 1931–". svenskfotboll.se (in Swedish). Retrieved 2009-11-25.
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