Autodromo Nazionale di Monza · 16 September 1951
Alberto Ascari won the 1951 Italian Grand Prix for Ferrari from 3rd on the grid, 24.6s ahead of José Froilán González. Franco Rol gained the most places, from 18th on the grid to 9th.
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | Ferrari Ascari 8 + González 6 + Villoresi 3 + Taruffi 2 + Whitehead 0 + Landi 0 | Ascari 8 + González 6 + Villoresi 3 + Taruffi 2 + Whitehead 0 + Landi 0 | 19 | |
| 2 | Alfa Romeo Farina 3 + Bonetto 2 + Fangio 0 + de Graffenried 0 | Farina 3 + Bonetto 2 + Fangio 0 + de Graffenried 0 | 5 | |
| 3 | Simca Simon 0 + Trintignant 0 + Manzon 0 | Simon 0 + Trintignant 0 + Manzon 0 | 0 | |
| 4 | Talbot-Lago Rosier 0 + Giraud-Cabantous 0 + Chiron 0 + Levegh 0 + Swaters 0 + Claes 0 | Rosier 0 + Giraud-Cabantous 0 + Chiron 0 + Levegh 0 + Swaters 0 + Claes 0 | 0 | |
| 5 | OSCA Rol 0 | Rol 0 | 0 | |
| 6 | BRM Parnell 0 + Richardson 0 | Parnell 0 + Richardson 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Alberto Ascari Ferrari | Ferrari | 2:42:39.300 | 80 | — | 8 | |
| 2 | José Froilán González Ferrari | Ferrari | +24.600s | 80 | — | 6 | |
| 3 | Felice Bonetto Alfa Romeo | Alfa Romeo | +1 Lap | 79 | — | 2 | |
| 3 | Nino Farina Alfa Romeo | Alfa Romeo | +1 Lap | 79 | — | 3 | |
| 4 | Luigi Villoresi Ferrari | Ferrari | +1 Lap | 79 | — | 3 | |
| 5 | Piero Taruffi Ferrari | Ferrari | +2 Laps | 78 | — | 2 | |
| 6 | André Simon Simca | Simca | +6 Laps | 74 | — | — | |
| 7 | Louis Rosier Talbot-Lago | Talbot-Lago | +7 Laps | 73 | — | — | |
| 8 | Yves Giraud-Cabantous Talbot-Lago | Talbot-Lago | +8 Laps | 72 | — | — | |
| 9 | Franco Rol OSCA | OSCA | +13 Laps | 67 | — | — | |
| DNF | Juan Manuel Fangio Alfa Romeo | Alfa Romeo | DNF Engine | 39 | — | — | |
| DNF | Maurice Trintignant Simca | Simca | DNF Engine | 29 | — | — | |
| DNF | Robert Manzon Simca | Simca | DNF Engine | 29 | — | — | |
| DNF | Louis Chiron Talbot-Lago | Talbot-Lago | DNF Ignition | 23 | — | — | |
| DNF | Pierre Levegh Talbot-Lago | Talbot-Lago | DNF Engine | 9 | — | — | |
| DNF | Jacques Swaters Talbot-Lago | Talbot-Lago | DNF Overheating | 7 | — | — | |
| DNF | Johnny Claes Talbot-Lago | Talbot-Lago | DNF Oil pump | 4 | — | — | |
| DNF | Toulo de Graffenried Alfa Romeo | Alfa Romeo | DNF Supercharger | 1 | — | — | |
| DNF | Peter Whitehead Ferrari | Ferrari | DNF Magneto | 1 | — | — | |
| DNF | Chico Landi Ferrari | Ferrari | DNF Transmission | 0 | — | — | |
| DNS | Reg Parnell BRM | BRM | DNS Withdrew | 0 | — | — | |
| DNS | Ken Richardson BRM | BRM | DNS Withdrew | 0 | — | — |