2011–12 Australian Baseball League season

[1] The season consists of six teams competing in a 45-game schedule followed by a three-round postseason to determine the ABL champion.

At the conclusion of the regular season, the Perth Heat, Melbourne Aces, Adelaide Bite and Sydney Blue Sox progressed to the finals series, while the Brisbane Bandits and Canberra Cavalry were only eliminated from contention on the final day of the season.

The 2011 tournament will not feature the CBL's champions, but officials have stated that a team would participate in future editions.

[3] The Asia Series is held in November, which would otherwise create a conflict for the ABL champion team as the following season would have already commenced.

[6] To allow for Perth Heat's participation in the 2011 Asia Series, all six teams received a bye during the early rounds of the regular season.

[19] Tyler Collins, designated hitter for the World All-Stars won the game's Most Valuable Player award.

The first- and second-place teams played each other in the major semi-final, the winner of which proceeded directly to the championship series and the loser to the preliminary final.

The winner of the minor semi-final between the third- and fourth-place teams also qualified for the preliminary final, while the loser was eliminated.

The Melbourne Aces finished a half-game ahead of a four-way tie between the Adelaide Bite, Brisbane Bandits, Canberra Cavalry and Sydney Blue Sox to secure the remaining spot in the major semi-final.