The 1950 Formula One season was the fourth season of the FIA's Formula One motor racing. It featured the inaugural FIA World Championship of Drivers, as well as several non-championship races. The championship, which commenced on 13 May and ended on 3 September, consisted of six Grand Prix races, each held in Europe and open to Formula One cars, plus the Indianapolis 500, which was run to AAA National Championship regulations. Giuseppe Farina won the championship from Juan Manuel Fangio and Luigi Fagioli.

The inaugural World Championship of Drivers saw Alfa Romeo dominate with their supercharged 158, a well-developed pre-war design that debuted in 1938; this car won all six championship Grands Prix in 1950. All of the Formula One-regulated races in the championship were run in Europe. The Indianapolis 500 (which, unlike all the other races, was staged on an oval) was run to American AAA regulations, not FIA Formula One regulations, and none of the regular drivers who competed in Europe competed in the 500, and vice versa. Alfa Romeo drivers consequently dominated the championship with Italian Giuseppe "Nino" Farina edging out Argentine teammate Juan Manuel Fangio because of his fourth place in Belgium.

Championship points were awarded to the top five finishers in each race on an 8–6–4–3–2 basis, and 1 point was awarded for the fastest lap of each race. Points for shared drives were divided equally between the drivers, regardless of how many laps each driver completed during the race. Only the best four results from the seven races could be retained by each driver for World Championship classification.

1950 would be the penultimate season that would use the original Formula One ruleset that was stipulated by the FIA in 1947. The rules were simply that no supercharged car could exceed 1.5 litre engines whilst non-supercharged cars were restricted to 3 litre engines.