The 2019–20 WNBL season is the 40th season of the competition since its establishment in 1981.
[1] The Canberra Capitals were the defending champions and they successfully defended their title with a 2–0 win over Southside.
The 2019–20 title was the ninth overall for the Capitals franchise.
Chemist Warehouse will again be the WNBL's naming rights partner for this season, after signing a three-year deal in July 2018.
[2] Spalding again provided equipment including the official game ball, alongside iAthletic supplying team apparel for the third year.