The 1934 French Grand Prix (formally the XXVIII Grand Prix de l'Automobile Club de France) was a Grand Prix motor race held on 1 July 1934 at Montlhéry. The race comprised 40 laps of a 12.5 km circuit, for a total race distance of 500.0 km. This race was the first outside of Germany to see the Silver Arrows of Auto Union and Mercedes-Benz, which would go on to dominate Grand Prix racing until the start of World War II.