The women's BMX freestyle event at the 2020 Summer Olympics took place on 31 July and 1 August 2021 at the Ariake Urban Sports Park.

The reigning (2021) World Champion is teenager Hannah Roberts of the United States, who was also the 2017 and 2019 winner and 2018 bronze medalist.

[3] A preview by Olympics.com noted Roberts as favourite, with Macarena Perez of Chile and Charlotte Worthington of Great Britain (the 2021 World Championships bronze medalist) as other contenders.

[4] A National Olympic Committee (NOC) could enter up to 2 qualified cyclists in the BMX freestyle.

These seeding scores are used to determine the start order of the cyclists in the final, providing a knowledge advantage to the later riders.