The third of three 1949 Buenos Aires Grand Prix (official name: IV 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 December 18, 1949.

Classification Pos Driver Constructor Laps Time/Retired 1 Alberto Ascari Ferrari 166 FL 35 1:29:00.2 2 Juan Manuel Fangio Ferrari 166 FL 35 1:29:29.4 3 Luigi Villoresi Ferrari 166 FL 35 1:30:38. 4 Benedicto Campos Ferrari 166 FL 34 N/A 5 Froilán González Maserati 4CLT 34 N/A 6 P. Bira Maserati 4CLT 34 N/A 7 Emmanuel de Graffenried Maserati 4CLT 33 N/A 8 Dorino Serafini Ferrari 125C F1 33 N/A 9 Clemente Biondetti Maserati 4CLT 33 N/A 10 Peter Whitehead Ferrari 125C F1 32 N/A 11 Louis Chiron Maserati 4CLT 32 N/A Ret Philippe Étancelin Maserati 4CLT 32 Oil pressure Ret Eitel Cantoni Maserati 4CM 32 Ret Piero Taruffi Maserati 4CLT 20 Ret Nino Farina Maserati 4CLT 16 N/A Ret Louis Rosier Talbot T26 14 Ret Piero Carini Maserati 4CLT 11 Ret Pascual Puopolo Maserati 4CLT 9 Ret Reg Parnell Maserati 4CLT 6 Ret Clemar Bucci Alfa Romeo 12C 5 Ret Felice Bonetto Maserati 4CLT 4 DNS Óscar Alfredo Gálvez Alfa Romeo 308 DNS Manfred von Brauchitsch Maserati 8CL

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