2012–13 HockeyAllsvenskan season

The 2012-13 HockeyAllsvenskan season began in September 2012 and represents the second-highest level of ice hockey in Sweden. Leksands IF, following a season marked by financial instability and scandal, secured first place in the regular season standings, and continued to the qualification round to the 2013–14 Elitserien season, along with second-place Södertälje SK, third place VIK Västerås HK, and playoff winner Örebro HK. Meanwhile, 13th- and 14th-ranked Tingsryds AIF and Karlskrona HK were forced to defend their places in HockeyAllsvenskan for the 2013-14 season.

This HockeyAllsvenskan season is notable for the participation of players from the National Hockey League (NHL) during the 2012–13 NHL lockout.

HockeyAllsvenskan had an average attendance of 3227 spectators in 2012-13, comfortably the highest attendance of any second-tier league in Europe (beating the 2nd Bundesliga with 2267), also making HockeyAllsvenskan the eighth most attended European hockey league. It was a 23.8 percent increase over the 2011-12 season's attendance average.

PlayOff-serien
PlayOff-serien, in previous seasons called Förkvalserien, was played between the teams ranked fourth through seventh in the regular season. They played a double round-robin tournament, the winner of which continued to the 2013 Kvalserien to Elitserien 2013-14.

Kval till HockeyAllsvenskan
The two teams ranked 13th and 14th after the regular season, Tingsryds AIF and Karlskrona HK, were forced to play in the Kvalserien qualification series to defend their spots in HockeyAllsvenskan. They played a double round-robin tournament with four teams who won the playoffs from the third-tier league Swedish Division 1. IF Björklöven, HC Vita Hästen, Huddinge IK, and Piteå HC. The series began on 12 March 2013 and ended on 5 April 2013. Karlskrona HK defended their spot in HockeyAllsvenskan, but IF Björklöven promoted to HockeyAllsvenskan at the expense of Tingsryds AIF, who were relegated to Division 1 for the 2013–14 season.