The 1974 United States Grand Prix was a Formula One motor race held on October 6, 1974, at the Watkins Glen Grand Prix Race Course in Watkins Glen, New York. It was race 15 of 15 in 1974 Formula One season.

Carlos Reutemann won from the pole, ahead of Brabham teammate Carlos Pace, while Emerson Fittipaldi's fourth place clinched his second World Championship in three years and the first for Team McLaren.

This was the last race for the 1967 world champion Denny Hulme, who scored 8 wins and 33 podiums in 112 starts. The race also saw the death of Austrian driver Helmut Koinigg, who was driving in only his second Grand Prix.

The weekend was infamous for the burning of a Greyhound bus in an area known as "the bog," which led to the closing of the notorious party area in years to come.