The 2021 FIA Formula 2 Championship is a motor racing championship for Formula 2 cars that is sanctioned by the Fédération Internationale de l'Automobile (FIA). The championship is the fifty-fifth season of Formula 2 racing and the fifth season run under the FIA Formula 2 Championship moniker. It is an open-wheel racing category that serves as the second tier of formula racing in the FIA Global Pathway. The category is scheduled to be run in support of selected rounds of the 2021 FIA Formula One World Championship. As the championship is a spec series, all teams and drivers competing in the championship will run the same car, the Dallara F2 2018. The championship is due to be contested over twenty-four races at eight circuits. It began in March 2021 with a round in support of the Bahrain Grand Prix, and end in December where it will support the Abu Dhabi Grand Prix.