| Competition: | Superettan |
| Season: | 2009 |
| Winners: | Mjällby AIF |
| Promotion To: | Allsvenskan |
| Matches: | 240 |
| Total Goals: | 701 |
| Average Attendance: | 1,880 |
| Prevseason: | 2008 |
| Nextseason: | 2010 |
The 2009 Superettan was part of the 2009 Swedish football season, and the tenth season of Superettan, Sweden's second-tier football division in its current format. A total of 16 teams contested the league.. The season began on 11 April 2009 and ended on 24 October 2009.[1]
The top 2 teams qualified directly for promotion to Allsvenskan, the third played a play-off against the fourteenth from Allsvenskan to decide who qualified to play in Allsvenskan 2010.The bottom 2 teams qualified directly for relegation to Division 1, the thirteenth and the fourteenth played a play-off against the numbers two from Division 1 Södra and Division 1 Norra to decide who qualified to play in Superettan 2010.
| Team | Location | Manager | Venue | Capacity | Last season | |
|---|---|---|---|---|---|---|
| Södertälje |  Robert Johansson | Södertälje Fotbollsarena | ||||
| Falkenberg | Thomas Askebrand | Falkenbergs IP | ||||
| Jönköping | Olle Nordin Andreas Jankevics | Stadsparksvallen | ||||
| Landskrona | Anders Linderoth | Landskrona IP | ||||
| Ljungskile | Bo Wålemark | Starke Arvid Arena | ||||
| Mjällby | Peter Swärdh | Strandvallen | ||||
| Norrköping | Göran Bergort | Idrottsparken | ||||
| Gothenburg | Lars Borgström | Valhalla IP | ||||
| Uppsala | Jens T. Andersson | Studenternas IP | ||||
| Sundsvall | Sören Åkeby | Norrporten Arena | ||||
| Södertälje | Özcan Melkemichel | Södertälje Fotbollsarena | ||||
| Trollhättan | Lars-Olof Mattsson | Edsborgs IP | ||||
| Solna | Peter Lenell | Skytteholms IP | ||||
| Upplands Väsby | Thomas Lagerlöf | Vilundavallen | ||||
| Åtvidaberg | Daniel Wiklund | Kopparvallen | ||||
| Ängelholm | Roar Hansen | Ängelholms IP |
Trollhättan and Qviding, who were the 13th and 14th teams in Superettan 2009 faced with Brage and Skövde, who were runners-up of Division 1.[2] Trollhättan won the play-out by 7-4 aggregate and remained in Superettan for 2010 season. Skövde, Division 1 Södra runner-up, didn't promote.
Brage, Division 1 Norra runner-up, won the play-out by 3-1 aggregate and promoted to Superettan for 2010 season. Qviding relegated to Division 1 Norra.
| Rank | Player | Club | Goals[3] |
|---|---|---|---|
| 1 | Marcus Ekenberg | Mjällby | 19 |
| Mattias Adelstam | Ängelholm | 19 | |
| 3 | Fredrik Olsson | Landskrona BoIS | 14 |
| Stefan Rodevåg | Falkenberg | 14 | |
| Pär Cederqvist | Landskrona BoIS | 14 | |
| 6 | Johan Patriksson | Ljungskile SK | 13 |
 Michael Mensah | Syrianska | 13 | |
| Erton Fejzullahu | Mjällby | 13 | |
| 9 | Niklas Löfgren | Ljungskile | 12 |
 Kennedy Igboananike | Vasalund | 12 | |
| 11 | 2 players | 10 | |
| 13 | 3 players | 9 | |
| 16 | 6 players | 8 | |
| 22 | 7 players | 7 | |
| 29 | 9 players | 6 | |
| 38 | 16 players | 5 |
(Minimum of 10 games played)
| Rank | Goalkeeper | Club | [4] | |||
|---|---|---|---|---|---|---|
| 1 | Mattias Asper | Mjällby | 30 | 19 | 87 | 15 |
| 2 | Niklas Westberg | Väsby United | 23 | 30 | 77 | 8 |
| Tommi Vaiho | Vasalund | 19 | 30 | 77 | 3 | |
| 4 |  Stojan Lukic | Falkenberg | 29 | 36 | 76 | 11 |
| Petter Augustsson | Ängelholm | 11 | 16 | 76 | 5 | |
 Nuredin Bakiu | IFK Norrköping | 18 | 23 | 76 | 7 | |
| 7 | Peter Karlsson | Landskrona BoIS | 27 | 39 | 75 | 8 |
| 8 | Henrik Gustavsson | Åtvidaberg | 30 | 36 | 74 | 12 |
| Tobias Wennergren | FC Trollhättan | 28 | 44 | 74 | 7 | |
| Oscar Berglund | Assyriska | 24 | 30 | 74 | 7 | |
| Christian Frealdsson | Syrianska | 21 | 23 | 74 | 6 | |
| Mikael Axelsson | Jönköpings Södra | 23 | 38 | 74 | 7 | |
| Team | Stadium | Capacity | Total | Average | Games | % of Capacity | |
|---|---|---|---|---|---|---|---|
| Assyriska | 6,700 | 42,014 | 2,801 | 15 | 42% | ||
| 4,000 | 20,494 | 1,366 | 15 | 34% | |||
| 5,200 | 37,063 | 2,471 | 15 | 48% | |||
| 12,000 | 34,601 | 2,307 | 15 | 19% | |||
| 6,000 | 14,529 | 969 | 15 | 16% | |||
| 7,500 | 36,668 | 2,445 | 15 | 33% | |||
| 19,000 | 64,593 | 4,306 | 15 | 23% | |||
| 4,000 | 6,926 | 462 | 15 | 12% | |||
| 7,600 | 22,476 | 1,498 | 15 | 20% | |||
| 7,700 | 47,327 | 3,155 | 15 | 41% | |||
| 6,700 | 34,288 | 2,286 | 15 | 34% | |||
| 5,100 | 23,742 | 1,583 | 15 | 31% | |||
| 4,000 | 10,809 | 721 | 15 | 18% | |||
| 4,000 | 6,088 | 406 | 15 | 10% | |||
| 7,200 | 34,538 | 2,303 | 15 | 32% | |||
| 5,000 | 15,142 | 1,009 | 15 | 20% |