The Women's Big Bash League (known as the WBBL and, for sponsorship reasons, the Weber WBBL) is the Australian women's domestic Twenty20 cricket competition. The WBBL replaced the Australian Women's Twenty20 Cup, which ran from the 2007–08 season through to 2014–15. The competition features eight city-based franchises, branded identically to the men's Big Bash League (BBL). Teams are made up of current and former Australian national team members, the country's best young talent, and up to three overseas marquee players.

The league, which originally ran alongside the BBL, has experienced a steady increase in media coverage and popularity since its inception, moving to a fully standalone schedule for WBBL|05. In 2018, ESPNcricinfo included the inaugural season in its 25 Moments That Changed Cricket series, calling it "the tournament that kick-started a renaissance".

The Adelaide Strikers are the current champions, winning back to back titles in WBBL|08 and WBBL|09. The collective performance of the Sydney Sixers and the Sydney Thunder in the league's initial years—combining for four championships in the first six seasons—has partially echoed the dominance of New South Wales in the Women's National Cricket League (WNCL), the 50-over counterpart of the WBBL.

History

Women's International Cricket League

In early 2014, the formation of an international women's Twenty20 competition, based around the franchise model of the Indian Premier League was announced. Headed by former Australian cricketer Lisa Sthalekar and Australian businessman Shaun Martyn, the proposal involved six privately owned Singapore-based teams with players earning over $US40,000 per season.

There was strong support from top female players for the Women's International Cricket League (WICL) concept, and backing was sought from the International Cricket Council, while former international cricketers Geoff Lawson and Clive Lloyd were on the board of the organisation.

The concept was dealt a blow in early June, when the England and Wales Cricket Board announced that they would refuse to release centrally contracted English players. At the same time, Cricket Australia (CA) announced it would not endorse the WICL either. Both organisations expressed concern that the tournament was not being run by a national cricket board, but a private company.

Australian Women's Twenty20 Cup

Before the establishment of the Women's Big Bash League, Cricket Australia conducted a national T20 competition: the Australian Women's Twenty20 Cup. The tournament ran in conjunction with the WNCL (the national women's 50-over competition) with the final played as a double header alongside the KFC Twenty20 Big Bash and later the Big Bash League. The competition ran from the 2009–10 season to 2014–15 after some exhibition games were held from 2007 to 2009.

Cricket Australia decided to replace the competition with the Women's Big Bash League in an attempt to further heighten the profile and professionalism of elite-level female cricket, thereby ideally helping to grow grassroots participation and viewership of the game among girls and women across the country.