The 2021 W Series Spielberg round 2 was the second round of seven in the 2021 W Series, and took place at the Red Bull Ring in Austria on 3 July 2021. The event was an undercard to the 2021 Formula One World Championship round at the same circuit.

The 2021 W Series was the second season of the W Series motor racing championship, replacing the 2020 season after it was cancelled due of the COVID-19 pandemic. The championship was exclusively open to female racing drivers as a Formula Regional-level racing series in support of the 2021 Formula One World Championship.