The 2021 W Series was the second season of the W Series motor racing championship, replacing the 2020 season after it was cancelled due to the COVID-19 pandemic.[1] 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.[2]
Jamie Chadwick entered the season as the defending W Series champion, having won the title in 2019.[3] Chadwick secured her second consecutive championship, winning the 2021 title at the season finale race, at Circuit of the Americas.