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 fourth edition ran from 18 December 2014 to 28 January 2015. The league ran two weeks longer as compared to the previous season. The opening match of the 2014–15 Big Bash League was played between Adelaide Strikers and Melbourne Stars on 18 December at the Adelaide Oval. The format of fourth season is same as previous season. A total of 35 matches will be played during the Big Bash 2014–15 season.