The 2014–15 Big Bash League season or BBL|04 was the fourth season of the Big Bash League (BBL), the premier Twenty20 cricket competition in Australia.
The league ran two weeks longer as compared to the previous season.
The Perth Scorchers won back-to-back titles by defeating the Sydney Sixers by 4 wickets on the last ball of the match.
Jason Behrendorff of the Scorchers was named 'Young Gun of the Tournament' for his 15 wickets in the season.
There were 32 matches played during the group stage of the fourth edition of the Big Bash League.