The women's giant slalom in the 2021 FIS Alpine Skiing World Cup consisted of 8 events including the final in Lenzerheide, Switzerland. The original schedule had included nine events, but a race in Semmering had to be cancelled after the first run had already been completed when hurricane-force winds moved in and caused significant damage, including to the timing equipment.

The women's slalom in the 2021 FIS Alpine Skiing World Cup consisted of 9 events, as planned.