The 1923 French Grand Prix (formally the XVII Grand Prix de l'Automobile Club de France) was a Grand Prix motor race held at Tours on 2 July 1923. The race was run over 35 laps of the 22.83 km circuit for a total distance of just under 800 km and was won by Henry Segrave driving a Sunbeam. This race is notable as the first Grand Épreuve to be won by either a British driver or a British car. The race also featured several innovative new technologies, including the first appearance of both supercharging and V12 engines in Grand Prix racing.