| Type: | GP |
| Country: | Argentina |
| Grand Prix: | Buenos Aires |
| Date: | January 17/18 |
| Year: | 1948 |
| Official Name: | II Gran Premio del General Juan Perón y de la Ciudad de Buenos Aires |
| Season No: | 6 |
| Location: | Parco Palermo Buenos Aires |
| Course: | Public roads |
| Course Mi: | 3.022 |
| Course Km: | 4.865 |
| Distance Laps: | 25 |
| Distance Mi: | 75.55 |
| Distance Km: | 121.6 |
| Pole Driver: | Nino Farina |
| Pole Team: | Maserati 8CL |
| Pole Time: | 2:37.6 (111.13 km/h) |
| Pole Country: | Italy |
| Fast Driver: | Luigi Villoresi |
| Fast Team: | Maserati 4CL |
| Fast Time: | 2:37.4 (111.27 km/h) |
| Fast Country: | Italy |
| First Driver: | Luigi Villoresi |
| First Team: | Maserati 4CL |
| First Country: | Italy |
| Second Driver: | Chico Landi |
| Second Team: | Alfa Romeo 308 |
| Second Country: | Brazil |
| Second Flag Suffix: | 1889 |
| Third Driver: | Andres Fernández |
| Third Team: | Maserati 6CM |
| Third Country: | Argentina |
The first of two 1948 Buenos Aires Grand Prix (official name: II Gran Premio del General Juan Perón y de la Ciudad de Buenos Aires) was a Grand Prix motor race held at the Palermo street circuit in Buenos Aires on January 17–18, 1948.[1]
| Pos | Driver | Constructor | Laps | Time/Retired | |
|---|---|---|---|---|---|
| 1 |  Luigi Villoresi | Maserati 4CL | 25 | 1:11:46.6 | |
| 2 |  Chico Landi | Alfa Romeo 308 | 25 | 1:12:24.6 | |
| 3 |  Andres Fernández | Maserati 6CM | 24 | 1:13:31.3 | |
| 4 | Arialdo Ruggeri | Maserati 4CL | 24 | 1:14:15.1 | |
| 5 | Victorio Rosa | Maserati 6CM | 23 | 1:14:55.3 | |
| 6 |  Raph | Maserati 4CL | 21 | 1:14:20.3 | |
| Ret | Óscar Alfredo Gálvez | Alfa Romeo 308 | 7 | DNF | |
| Ret | Juan Manuel Fangio | Maserati 4CL | 4 | DNF | |
| Ret | Italo Bizio | Alfa Romeo 2900 A | 3 | DNF | |
| Ret | Nino Farina | Maserati 8CL | 3 | DNF | |
| Ret | Achille Varzi | Alfa Romeo 12C-37 | 2 | DNF | |
| Ret | Enrico Platé | Maserati 4CL | 2 | DNF | |
| Ret | Pascual Puopolo | Maserati 8CL | DNS | ||
| Ret | Jean-Pierre Wimille | Alfa Romeo 8C-308 | DNS | ||
| Ret |  Eitel Cantoni | Maserati 4CM | DNS | ||
| Ret | Gabriele Besana | Ferrari 166 SC | DNS |