| <-- 1971 Austria | 1971 Season Formula One Italian Grand Prix | 1971 Canada --> |
| <-- 1970 Italy | 1972 Italy --> |

The 1971 Italian Grand Prix was a Formula One motor race held at Monza on 5 September 1971. It was race 9 of 11 in the 1971 Formula One season.
This race featured the closest finish in Formula One history, as Peter Gethin beat Ronnie Peterson by 0.01 seconds. The top five were covered by just 0.61 seconds, with François Cevert finishing third, Mike Hailwood fourth and Howden Ganley fifth. With an average speed of 242.615 km/h, this race stood as the fastest-ever Formula One race for 32 years, until the 2003 Italian Grand Prix at Monza.
Furthermore, it would turn out to be Gethin's only Grand Prix victory.

| Offical Name 42o Gran Premio d'Italia |
| Date 1971-09-05 |
| Circuit |
| Course Length km \ miles |
| Distance 55 laps, km \ miles |
| Pos. | Driver | Constructor |
|---|---|---|
| Driver | Consturctor | Time |
|---|---|---|
| Driver | Constructor | Fastest Lap |
|---|---|---|
| Pos. | Driver | Points |
|---|---|---|
| 1 | 51 | |
| 2 | 23 | |
| 3 | 19 | |
| 4 | 16 | |
| 5 | 16 | |
| 6 | 13 | |
| 7 | 12 | |
| 8 | 12 | |
| 9 | 9 | |
| 10 | 9 | |
| 11 | 9 | |
| 12 | 7 | |
| 13 | 6 | |
| 14 | 5 | |
| 15 | 4 | |
| 16 | 3 | |
| 17 | 3 | |
| 17 | 3 | |
| 19 | 2 | |
| 19 | 2 | |
| 21 | 1 |
| Pos. | Constructor | Points |
|---|---|---|
| 1 | 55 | |
| 2 | 32 | |
| 3 | 30 | |
| 4 | 24 | |
| 5 | 19 | |
| 6 | 9 | |
| 7 | 8 | |
| 8 | 6 | |
| 9 | 5 |