The 2018–19 WNBL season is the 39th season of the competition since its establishment in 1981.
[1] The Townsville Fire were the defending champions, however they failed to qualify for the finals.
Canberra Capitals won their record eighth championship, defeating Adelaide in the grand final series, 2–1.
[2] Chemist Warehouse was announced as the WNBL's naming rights partner for this season, after signing a three-year deal in July 2018.
[3] Spalding again provided equipment including the official game ball, alongside iAthletic supplying team apparel for a second year.