| Overview | Grid | Race Entries |
| Race | Qualifying |
| Race Name: | XXI Gran Premio d'Italia |
| Track: | Autodromo Nazionale Monza |
| Round: | 7 of 7 |
| Race date: | Sunday, September 3rd, 1950 |
| Race time: | 14.00 |
| 1st | 2nd | 3rd | |
| Driver | Nino Farina | Dorino Serafini / Alberto Ascari | Luigi Fagioli |
| Constructor | Alfa Romeo | Ferrari | Alfa Romeo |
| Car | Alfa Romeo 158 | Ferrari 375 | Alfa Romeo 158 |
| Engine | Alfa Romeo 159 LBC | Ferrari 375 F1 | Alfa Romeo 159 LBC |
| Tyre | Pirelli | Pirelli | Pirelli |
| Time | 2:51:17.4 | 00.0 | 2:52:53.0 |
| Gap | 47 Laps | 1m 35.6 secs |
| P | No. | Driver | Qual | Race | Total | |
| 1 | 18 | Juan Manuel Fangio Alfa Romeo | 1:58.6 0 | 2:00.0 23 | 1:58.6 23 | |
| 2 | 16 | Alberto Ascari Ferrari | 1:58.8 0 | No Time 21 | 1:58.8 21 | |
| 3 | 10 | Nino Farina Alfa Romeo | 2:00.2 0 | No Time 80 | 2:00.2 80 | |
| 4 | 46 | Consalvo Sanesi Alfa Romeo | 2:00.4 0 | No Time 11 | 2:00.4 11 | |
| 5 | 36 | Luigi Fagioli Alfa Romeo | 2:04.0 0 | No Time 80 | 2:04.0 80 | |
| 6 | 48 | Dorino Serafini Ferrari | 2:05.2 0 | No Time 47 | 2:05.2 47 | |
| 7 | 60 | Piero Taruffi Alfa Romeo | 2:05.8 0 | No Time 25 | 2:05.8 25 | |
| 8 | 12 | Raymond Sommer Talbot-Lago-Talbot | 2:08.6 0 | 2:10.2 48 | 2:08.6 48 | |
| 9 | 4 | Franco Rol Maserati | 2:10.0 0 | No Time 39 | 2:10.0 39 | |
| 10 | 42 | Maurice Trintignant Simca-Gordini | 2:13.4 0 | 2:10.2 13 | 2:10.2 13 | |
| 11 | 44 | Robert Manzon Simca-Gordini | 2:12.4 0 | No Time 7 | 2:12.4 7 | |
| 12 | 58 | Louis Rosier Talbot-Lago-Talbot | 2:13.4 0 | 2:13.1 75 | 2:13.1 75 | |
| 13 | 40 | Guy Mairesse Talbot-Lago-Talbot | 2:13.2 0 | 2:22.0 42 | 2:13.2 42 | |
| 14 | 24 | Philippe Étançelin Talbot-Lago-Talbot | 2:14.4 0 | 2:13.3 75 | 2:13.3 75 | |
| 15 | 64 | Henri Louveau Talbot-Lago-Talbot | 2:13.8 0 | 2:15.0 16 | 2:13.8 16 | |
| 16 | 30 | Prince Bira Maserati | 2:14.0 0 | 2:22.0 1 | 2:14.0 1 | |
| 17 | 38 | Emmanuel de Graffenried Maserati | 2:14.4 0 | No Time 72 | 2:14.4 72 | |
| 18 | 56 | Pierre Levegh Talbot-Lago-Talbot | 2:17.2 0 | 2:15.3 29 | 2:15.3 29 | |
| 19 | 8 | Peter Whitehead Ferrari | 2:16.2 0 | No Time 72 | 2:16.2 72 | |
| 20 | 6 | Louis Chiron Maserati | 2:17.2 0 | No Time 13 | 2:17.2 13 | |
| 21 | 32 | Cuth Harrison ERA | 2:18.4 0 | No Time 51 | 2:18.4 51 | |
| 22 | 2 | Johnny Claes Talbot-Lago-Talbot | 2:18.6 0 | 2:19.0 22 | 2:18.6 22 | |
| 23 | 52 | Felice Bonetto Maserati | 2:19.8 0 | 2:19.8 0 | ||
| 24 | 50 | David Murray Maserati | 2:22.0 0 | No Time 56 | 2:22.0 56 | |
| 25 | 22 | Clemente Biondetti Ferrari-Jaguar | 2:40.6 0 | No Time 17 | 2:40.6 17 | |
| 26 | 62 | Franco Comotti Maserati | 2:43.6 0 | No Time 15 | 2:43.6 15 | |
| 27 | 20 | Luigi De Filippis Maserati | No Time 0 | |||
| 28 | 60 | Juan Manuel Fangio Alfa Romeo | No Time 9 | No Time 9 | ||
| 29 | 48 | Alberto Ascari Ferrari | No Time 33 | No Time 33 | ||
| 30 | 14 | Giovanni Bracco Ferrari | No Time 0 | |||
| 31 | 28 | Paul Pietsch Maserati | No Time 0 | No Time 0 | No Time 0 | |
| 32 | 26 | Reg Parnell Maserati | No Time 0 |