The 1948 Buenos Aires Grand Prix was a Grand Prix motor race held at the Palermo street circuit in Buenos Aires on January 17, 1948.
| 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 |