Juan Fangio won the Italian Grand Prix 1955 at Autodromo Nazionale di Monza on 11 September 1955, starting from pole position. Piero Taruffi finished second for Mercedes, with Eugenio Castellotti completing the podium for Ferrari.
| Pos | Driver | Team | Grid | Pts | FL | Status |
|---|---|---|---|---|---|---|
1 | | | 1 | 8 | Finished | |
2 | | | 9 | 6 | Finished | |
3 | | | 4 | 4 | Finished | |
4 | | | 6 | 3 | Finished | |
5 | | 16 | 2 | +1 Lap | ||
6 | | 12 | 0 | +1 Lap | ||
7 | | 7 | 0 | +2 Laps | ||
8 | | 15 | 0 | +3 Laps | ||
9 | | 20 | 0 | +4 Laps | ||
10 | | 14 | 0 | Gearbox | ||
R | | 3 | 0 | Gearbox | ||
R | | 10 | 0 | Gearbox | ||
R | | 21 | 0 | Suspension | ||
R | | 2 | 1 | Engine | ||
R | | 19 | 0 | Engine | ||
R | | 18 | 0 | Fuel system | ||
R | | 11 | 0 | Suspension | ||
R | | 13 | 0 | Suspension | ||
R | | 22 | 0 | Engine | ||
R | | 17 | 0 | Injection | ||
W | | 5 | 0 | Withdrew | ||
W | | 8 | 0 | Withdrew | ||
W | | 0 | 0 | Withdrew |