The 2011 Kvalserien was the 37th Kvalserien, played between 14 March and 8 April 2011. Växjö Lakers Hockey and Modo Hockey, who finished 1st and 2nd respectively, qualified for the 2011–12 Elitserien season. Södertälje SK were relegated to HockeyAllsvenskan.
Växjö were the best team in this year's Kvalserien, winning nine games and going undefeated in regulation time. Växjö had already secured their Elitserien spot after the 8th round (Kvalserien has 10 rounds), and thus the team's two following games were unimportant for them, but the team still won 4–2 at home against Rögle and 5–3 away against Mora. Växjö's 4–2 win against Rögle in the ninth round extinguished Rögle's chances of qualifying for the 2011–12 Elitserien season. Växjö finished with 26 points, which is a record in Kvalserien history.
After the 9th round, Modo and Södertälje both had 17 points. The teams met each other in Fjällräven Center in the final round, for a game that directly decided which team would be relegated to HockeyAllsvenskan. Modo won the game 2–0 and thus stayed in Elitserien for the 2011–12 season. This meant that Södertälje were relegated to HockeyAllsvenskan prior to the 2011–12 season.
Örebro made their first Kvalserien since re-qualifying for HockeyAllsvenskan in 2009. Mora made their first Kvalserien since 2008.