| «1955-07» | Italy Grand Prix - XXVI Gran Premio d'Italia |
| 1955-09-11 | Monza - Autodromo Nazionale di Monza - 50 laps × 10.0 km : 500.0 km |
| Pos | Grid | Car | Driver | Constructor | Laps | Time / Gap | Interval | Points |
|---|---|---|---|---|---|---|---|---|
| 1 | 1 | 18 | Juan Manuel Fangio | Mercedes | 50 | 2:25:04.400 | 206.792 km/h | 8 |
| 2 | 9 | 14 | Piero Taruffi | Mercedes | 50 | +00.700 | +00.700 | 6 |
| 3 | 4 | 4 | Eugenio Castellotti | Ferrari | 50 | +46.200 | +45.500 | 4 |
| 4 | 6 | 36 | Jean Behra | Maserati | 50 | +03:57.500 | +03:11.300 | 3 |
| 5 | 16 | 34 | Carlos Menditeguy | Maserati | 49 | +1 lap | 2 | |
| 6 | 12 | 12 | Umberto Maglioli | Ferrari | 49 | +1 lap | ||
| 7 | 7 | 28 | Roberto Mieres | Maserati | 48 | +2 laps | ||
| 8 | 15 | 8 | Maurice Trintignant | Ferrari | 47 | +3 laps | ||
| 9 | 20 | 40 | John Fitch | Maserati | 46 | +4 laps | ||
| 14 | 6 | Mike Hawthorn | Ferrari | 38 | gearbox | |||
| 3 | 20 | Karl Kling | Mercedes | 32 | gearbox | |||
| 10 | 30 | Luigi Musso | Maserati | 31 | gearbox | |||
| 21 | 38 | Horace Gould | Maserati | 31 | oil pump | |||
| 2 | 16 | Stirling Moss | Mercedes | 27 | engine | 1 | ||
| 19 | 26 | Jacques Pollet | Gordini | 26 | engine | |||
| 18 | 22 | Hermano da Silva Ramos | Gordini | 23 | fuel pump | |||
| 11 | 32 | Peter Collins | Maserati | 22 | suspension | |||
| 13 | 42 | Harry Schell | Vanwall | 7 | suspension | |||
| 22 | 24 | Jean Lucas | Gordini | 7 | engine | |||
| 17 | 44 | Ken Wharton | Vanwall | 0 | fuel pump | |||
| DNS | 5 | 2 | Giuseppe Farina | Lancia | tyre | |||
| DNS | 8 | 10 | Luigi Villoresi | Lancia | tyre | |||
| DNS | 46 | Luigi Piotti | Arzani Volpini • Maserati | engine |
Fastest lap - 02:46.900 - 215.698 km/h - Stirling Moss (lap 21)