1953 Formula One season

Alberto Ascari won his second and final Drivers' Championship with Ferrari.
Maserati's Juan Manuel Fangio finished second in the World Championship of Drivers.
Ascari's teammate Giuseppe Farina finished third.

The 1953 Formula One season was the seventh season of FIA Formula One motor racing. Just as in 1952, races counting towards the 4th World Championship of Drivers—which was contested over nine races between 18 January and 13 September 1953—were open only to Formula Two cars. The Indianapolis 500 continued to be run under the formula dictated by the Contest Board of the American Automobile Association. The season also included several non-championship races for F1 and F2 cars.

The World Drivers' Championship was won by Alberto Ascari driving for Scuderia Ferrari. Ascari became the first driver since the inception of the championship in 1950 to successfully defend his title. It would be his last title, as well as the last for any Italian driver, as of 2025.

For the first time, a championship event was included outside of Europe (with the exception of the Indianapolis 500): the 1953 Argentine Grand Prix. It was marred by an accident involving 1950 champion Nino Farina, who crashed into an unprotected crowd, killing nine spectators.