The 1974 Formula One season was the 28th season of FIA Formula One motor racing. It featured the 1974 World Championship of F1 Drivers and the 1974 International Cup for F1 Manufacturers, contested concurrently over a fifteen-race series which commenced on 13 January and ended on 6 October. The season also included three non-championship races.

Defending champion Jackie Stewart did not drive in 1974, having announced his retirement at the end of the previous season. For the first time since 1968, the battle for the Drivers' Championship went down to the very last race; Emerson Fittipaldi (McLaren) and Clay Regazzoni (Ferrari) began the race weekend at Watkins Glen with an equal number of points, but Regazzoni dropped down the field with handling problems and Fittipaldi's fourth place gave him his second championship. South African Jody Scheckter finished third for Tyrrell Racing after having an outside chance of also becoming champion. Fittipaldi's triumph with the British manufacturer wrought many firsts for Formula One and served as a precursor to what was to come; it was the first title for the McLaren team and the first of many titles for a team sponsored by the Marlboro cigarette brand.

Two F1 drivers died over the course of the season: Peter Revson during practice for the South African Grand Prix and Helmut Koinigg during the United States Grand Prix.

The following teams and drivers contested the 1974 World Championship.

A relatively large number of driver changes had happened over the winter:

During the season, five teams debuted with their self-made chassis:

These are some of the mid-season driver changes:

Selfseal breakaway fuel couplings were mandated to reduce the chance of a fire in accidents.