| Type: | GP |
| Grand Prix: | French |
| Date: | 1 July |
| Year: | 1934 |
| Official Name: | XXVIII Grand Prix de l'Automobile Club de France |
| Country: | France |
| Location: | Montlhéry, France |
| Course: | Autodrome de Linas-Montlhéry |
| Course Mi: | 7.767 |
| Course Km: | 12.50 |
| Distance Laps: | 40 |
| Distance Mi: | 310.7 |
| Distance Km: | 500.0 |
| Pole Driver: | Hans Stuck |
| Pole Country: | Germany |
| Pole Flag Suffix: | 1933 |
| Pole Team: | Auto Union |
| Grid From Ballot: | True |
| Fast Driver: | Louis Chiron |
| Fast Team: | Alfa Romeo |
| Fast Time: | 5:06.0 |
| Fast Country: | Monaco |
| First Driver: | Louis Chiron |
| First Team: | Alfa Romeo |
| First Country: | Monaco |
| Second Driver: | Achille Varzi |
| Second Team: | Alfa Romeo |
| Second Country: | Italy |
| Second Flag Suffix: | 1861 |
| Third Driver: | Carlo Felice Trossi |
| Third Team: | Alfa Romeo |
| Third Country: | Italy |
| Third Flag Suffix: | 1861 |
| Third Driver2: | Guy Moll |
| Third Country2: | France |
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.
The race was won by Louis Chiron driving an Alfa Romeo. Chiron lead from the start, jumping the start to lead the first lap, but was quickly challenged by the Germans. Stuck, who made a poor start, was able to take the lead on lap 3, while down the field the Mercedes' and other Alfa Romeos and Auto Unions battled for the remaining places, while the Bugattis and Maseratis showed themselves to be totally outclassed. With Stuck's Auto Union slowing, Chiron retook the lead on lap 9. This he held to the end, as although he was pressured by the Mercedes of Fagioli and Caracciola, this ultimately came to nothing, as by the end of the race not a single German car was still running.
| Grid | No | Driver | Car | Note | |
|---|---|---|---|---|---|
| 1 | 10 |  Hermann zu Leiningen | Auto Union A | Did not start | |
| 2 | 2 | Auto Union A | Raced Momberger's car | ||
| 3 | 6 | Alfa Romeo Tipo-B P3 | |||
| 4 | 8 | Mercedes-Benz W25 | |||
| 5 | 4 | Auto Union A | Raced zu Leiningen's car | ||
| 6 | 12 | Alfa Romeo Tipo-B P3 | |||
| 7 | 14 | Bugatti T59 | |||
| 8 | 16 | Bugatti T59 | |||
| 9 | 18 | Bugatti T59 | |||
| 10 | 20 | Alfa Romeo Tipo-B P3 | |||
| 11 | 22 | Mercedes-Benz W25 | |||
| 12 | 24 | Maserati 8C | |||
| 13 | 26 | Maserati 8CM | |||
| 14 | 30 | Mercedes-Benz W25 |
| Pos | No | Driver | Car | Laps | Time/Retire | ||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 12 | Alfa Romeo Tipo-B P3 | 40 | 3h39m14.6 | |||||
| 2 | 6 | Alfa Romeo Tipo-B P3 | 40 | 3h42m31.9 | |||||
| 3 | 20 |  Carlo Felice Trossi  Guy Moll | Alfa Romeo Tipo-B P3 | 40 | 3h43m23.8 | ||||
| 4 | 16 | Bugatti T59 | 36 | +4 laps | |||||
| Ret | 24 | Maserati 8C | 33 | Rear axle attachment | |||||
| Ret | 2 | Auto Union A | 32 | Engine | |||||
| Ret | 14 | Tazio Nuvolari Jean-Pierre Wimille | Bugatti T59 | 17 | Transmission | ||||
| Ret | 18 | Bugatti T59 | 16 | Engine | |||||
| Ret | 8 | Mercedes-Benz W25 | 15 | Fuel feed | |||||
| Ret | 30 | Mercedes-Benz W25 | 14 | Brakes | |||||
| Ret | 22 | Mercedes-Benz W25 | 11 | Supercharger | |||||
| Ret | 26 | Maserati 8CM | 11 | Engine | |||||
| Ret | 4 | Auto Union A | 10 | Steering | |||||
| DNS | 10 | Hermann zu Leiningen | Auto Union A | DNS (Unwell)[1] | |||||
| DNS | Ernst Henne | Mercedes-Benz W25 | Reserve driver, practiced | ||||||
| DNS | Maserati 8CM | Entered, but injured in Penya Rhin | |||||||
| DNS | S.E.F.A.C. | DNS | |||||||
| References:[2] [3] | |||||||||