The 2019–20 Women's Big Bash League season or WBBL|05 was the fifth season of the Women's Big Bash League (WBBL), the semi-professional women's Twenty20 domestic cricket competition in Australia. The tournament moved to a standalone calendar slot, shifting away from the men's BBL, beginning on 18 October and running to 8 December 2019.

Ellyse Alexandra Perry is an Australian sportswoman who has represented her country in cricket and soccer. Having debuted for both the national cricket team and the national soccer team at the age of 16, she is the youngest Australian to play international cricket and the first to have appeared in both ICC and FIFA World Cups. Gradually becoming a single-sport professional athlete from 2014 onward, Perry's acclaimed cricket career has continued to flourish and she is widely regarded to be one of the greatest woman cricketers of all time.