The 2011 Superettan was part of the 2011 Swedish football season, and the twelfth season of Superettan, Sweden's second-tier football division in its current format.
A total of sixteen teams contested the league, including eleven sides from the 2010 season, two relegated teams from 2010 Allsvenskan, two promoted teams from Division 1 and Qviding FIF who replaced Örgryte IS after they were automatically relegated to Division 1 before the start of the new season due to bankruptcy.
FC Trollhättan and Väsby United were relegated at the end of the 2010 season after finishing in the bottom two places of the table.
Jönköpings Södra IF and Östers IF both retained their Superettan spots after defeating their Division 1 opponents in a relegation/promotion playoff.
Note: Flags indicate national team as has been defined under FIFA eligibility rules.