| Type: | GP |
| Grand Prix: | Monaco |
| Date: | 14 April |
| Year: | 1929 |
| Official Name: | Grand Prix Automobile de Monaco |
| Country: | Monaco |
| Location: | Circuit de Monaco Monte Carlo |
| Course: | Street circuit |
| Course Mi: | 1.976 |
| Course Km: | 3.180 |
| Weather: | Dry |
| Distance Laps: | 100 |
| Distance Mi: | 197.6 |
| Distance Km: | 318.0 |
| Pole Driver: | Philippe Étancelin |
| Pole Team: | Bugatti |
| Pole Country: | France |
| Grid From Ballot: | True |
| Fast Driver: | William Grover-Williams |
| Fast Team: | Bugatti |
| Fast Time: | 2:15.0 |
| Fast Country: | United Kingdom |
| First Driver: | William Grover-Williams |
| First Team: | Bugatti |
| First Country: | United Kingdom |
| Second Driver: | Georges Bouriano |
| Second Team: | Bugatti |
| Second Country: | Romania |
| Third Driver: | Rudolf Caracciola |
| Third Team: | Mercedes-Benz |
| Third Country: | Germany |
| Third Flag Suffix: | Weimar |
The 1929 Monaco Grand Prix was the first Grand Prix to be run in the principality. It was set up by wealthy cigarette manufacturer, Antony Noghès, who had set up the Automobile Club de Monaco with some of his friends. This offer of a Grand Prix was supported by Prince Louis II, and the Monégasque driver of that time, Louis Chiron. On 14 April 1929, their plan became reality, when 16 invited participants turned out to race for a prize of 100,000 French francs.
Grid positions were determined by a ballot. Philippe Étancelin drew pole position, while main rival Rudolf Caracciola started 15th.
| Inside | Middle | Outside | ||
|---|---|---|---|---|
| Row 1 |  Étancelin Bugatti | Dauvergne Bugatti | Lehoux Bugatti | |
| Row 2 |  Sandri Maserati |  "Williams" Bugatti | Philippe Bugatti | |
| Row 2 | Zehender Alfa Romeo |  Bouriano Bugatti | de Rovin Delage | |
| Row 4 | Rigal Alfa Romeo | de Sterlich Maserati | Dreyfus Bugatti | |
| Row 5 |  Lepori Bugatti | Doré Corre La Licorne |  Caracciola Mercedes-Benz | |
| Row 6 | Perrot Alfa Romeo | × | × |
| Pos | No | Driver | Team | Laps | Time/Retired | Grid | |
|---|---|---|---|---|---|---|---|
| 1 | 12 | "W Williams" | Bugatti T35B | 100 | 3:56:11.0 | 5 | |
| 2 | 18 | Georges Bouriano | Bugatti T35C | 100 | + 1:17.8 | 8 | |
| 3 | 34 | Rudolf Caracciola | Mercedes-Benz SSK | 100 | + 2:22.6 | 15 | |
| 4 | 14 | "Georges Philippe" | Bugatti T35C | 99 | + 1 lap | 6 | |
| 5 | 28 | René Dreyfus | Bugatti T37A | 97 | + 3 laps | 12 | |
| 6 | 4 | Philippe Étancelin | Bugatti T35C | 96 | + 4 laps | 1 | |
| 7 | 30 | Mario Lepori | Bugatti T35C | 94 | + 6 laps | 13 | |
| 8 | 32 | Michel Doré | Corre La Licorne | 89 | + 11 laps | 14 | |
| 9 | 24 | Louis Rigal | Alfa Romeo 6C | 87 | + 13 laps | 10 | |
| Ret | 22 | Raoul de Rovin | Delage 15S8 | 80 | Accident | 9 | |
| Ret | 16 | Goffredo Zehender | Alfa Romeo 6C | 55 | Mechanical | 7 | |
| Ret | 6 | Christian Dauvergne | Bugatti T35C | 46 | Mechanical | 2 | |
| Ret | 10 | Guglielmo Sandri | Maserati 8C | 41 | Mechanical | 4 | |
| Ret | 36 | Albert Perrot | Alfa Romeo 6C | 18 | Wheel detached | 16 | |
| Ret | 26 | Diego de Sterlich | Maserati 8C | 16 | Mechanical | 11 | |
| Ret | 8 | Marcel Lehoux | Bugatti T35C | 7 | Transmission | 3 |