2020 Adelaide Lightning season

The 2020 Adelaide Lightning season is the 29th season for the franchise in the Women's National Basketball League (WNBL).

Due to the COVID-19 pandemic, a North Queensland hub is set to host the season. The season was originally 2020–21 and would be traditionally played over several months across the summer, however this seasons scheduling has been condensed. The six-week season will see Townsville, Cairns and Mackay host a 56-game regular season fixture, plus a four-game final series (2 x semi-finals, preliminary final and grand final). Each team will contest 14 games starting on 12 November, with the grand final scheduled for 20 December.