The 2021 FIM Women's Motocross World Championship was the 17th Women's Motocross World Championship season. Courtney Duncan successfully defended her title, after taking her second title in 2020 Yamaha is the defending Manufacturing champion.
A 5-round calendar for the 2021 season was announced on 10 February 2021.
Points are awarded to finishers of the main races, in the following format: