The 2018–19 Women's Big Bash League season or WBBL|04 was the fourth season of the Women's Big Bash League (WBBL), the semi-professional women's Twenty20 domestic cricket competition in Australia. The tournament ran from 1 December 2018 to 26 January 2019.
Indian international Harmanpreet Kaur hits out for Sydney Thunder against Perth Scorchers at Lilac Hill Park, Perth, on 29 December 2018. The Scorchers' wicket-keeper, England international Amy Jones, looks on. The Scorchers later scored 4/180 to win the match by six wickets, with just one ball remaining.