The 2021 FIA Formula 3 Championship was a motor racing championship for Formula 3 cars that was sanctioned by the Fédération Internationale de l'Automobile. The championship was the twelfth season of
Dennis Hauger won the 2021 Formula 3 Championship.
Prema Racing entered the season as the defending teams' champions.
The 2020 FIA Formula 3 Championship was the eleventh season of the third-tier of Formula One feeder championship and also second season under the moniker of FIA Formula 3 Championship, a multi-event m
Oscar Piastri became the second FIA Formula 3 Champion.
Prema Racing entered the season as the defending Teams' Champions and successfully secured back to back teams titles after the first race at Monza.