The 1984 Italian Grand Prix was Round 14 of the 1984 FIA Formula 1 World Championship. The event was held at Monza, Italy on Sunday, 9 September 1984. Nelson Piquet started on pole position in the Brabham BMW and Niki Lauda was the race winner in the McLaren TAG.
55. Gran Premio D'Italia 1984 Race Result
| Pos. | No. | Driver | Nationality | Team | Tyre | Laps | Time/Retired | Race Time | Gap | Interval | Best Lap | Lap | Speed | Started | Points |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 8 | Niki Lauda | Austria | McLaren TAG | Michelin | 51 | 1:20:29.065 | 1:20:29.065 | - | - | 1:31.912 | 42 | 220.514 | 4 | 9 |
| 2 | 27 | Michele Alboreto | Italy | Ferrari | Goodyear | 51 | +24.249 | 1:20:53.314 | +24.249 | +24.249 | 1:33.159 | 43 | 219.412 | 11 | 6 |
| 3 | 22 | Riccardo Patrese | Italy | Alfa Romeo | Goodyear | 50 | +1 lap | 1:21:09.290 | 1 lap | 1 lap | 1:35.574 | 27 | 214.404 | 9 | 4 |
| 4 | 19 | Stefan Johansson | Sweden | Toleman Hart | Michelin | 49 | +2 laps | 1:21:18.636 | 2 laps | 1 lap | 1:33.867 | 23 | 209.714 | 17 | 3 |
| 5 | 30 | Jo Gartner | Austria | Osella Alfa Romeo | Pirelli | 49 | +2 laps | 1:21:46.484 | 2 laps | +27.848 | 1:37.278 | 22 | 208.524 | 24 | |
| 6 | 31 | Gerhard Berger | Austria | ATS BMW | Pirelli | 49 | +2 laps | 1:22:07.576 | 2 laps | +21.092 | 1:37.748 | 5 | 207.631 | 20 | |
| 7 | 24 | Piercarlo Ghinzani | Italy | Osella Alfa Romeo | Pirelli | 48 | Out of Fuel | 1:18:40.709 | 3 laps | 1 lap | 1:36.036 | 26 | 212.307 | 22 | |
| 8 | 21 | Huub Rothengatter | Netherlands | Spirit Hart | Pirelli | 48 | +3 laps | 1:20:49.887 | 3 laps | +2:09.178 | 1:38.351 | 21 | 206.652 | 25 | |
| 9 | 23 | Eddie Cheever | United States | Alfa Romeo | Goodyear | 45 | Out of Fuel | 1:11:43.430 | 6 laps | 3 laps | 1:33.666 | 30 | 218.337 | 10 | |
| 10 | 18 | Thierry Boutsen | Belgium | Arrows BMW | Goodyear | 45 | +6 laps | 1:21:28.918 | 6 laps | +9:45.488 | 1:33.280 | 36 | 192.189 | 19 | |
| DNF | 15 | Patrick Tambay | France | Renault | Michelin | 43 | Throttle | 1:07:42.089 | 1:32.433 | 39 | 221.029 | 8 | |||
| DNF | 2 | Teo Fabi | Italy | Brabham BMW | Michelin | 43 | Engine | 1:07:50.334 | 1:32.418 | 22 | 220.581 | 5 | |||
| DNF | 17 | Marc Surer | Switzerland | Arrows BMW | Goodyear | 43 | Engine | 1:10:50.763 | 1:34.657 | 26 | 211.218 | 15 | |||
| DNF | 16 | Derek Warwick | Great Britain | Renault | Michelin | 31 | Oil Pressure | 49:22.550 | 1:33.359 | 27 | 218.487 | 12 | |||
| DNF | 10 | Jonathan Palmer | Great Britain | RAM Hart | Pirelli | 20 | Oil Pressure | 33:53.635 | 1:38.967 | 15 | 205.346 | 26 | |||
| DNF | 1 | Nelson Piquet | Brazil | Brabham BMW | Michelin | 15 | Engine | 23:55.546 | 1:34.076 | 7 | 218.174 | 1 | |||
| DNF | 11 | Elio de Angelis | Italy | Lotus Renault | Goodyear | 14 | Gearbox | 22:49.190 | 1:35.900 | 13 | 213.498 | 3 | |||
| DNF | 12 | Nigel Mansell | Great Britain | Lotus Renault | Goodyear | 13 | Spun Off | 21:07.298 | 1:34.907 | 13 | 214.187 | 7 | |||
| DNF | 5 | Jacques Laffite | France | Williams Honda | Goodyear | 10 | Turbo | 16:20.925 | 1:35.268 | 8 | 212.860 | 13 | |||
| DNF | 6 | Keke Rosberg | Finland | Williams Honda | Goodyear | 8 | Turbo | 13:05.101 | 1:35.245 | 4 | 212.762 | 6 | |||
| DNF | 26 | Andrea de Cesaris | Italy | Ligier Renault | Michelin | 7 | Engine | 11:34.423 | 1:36.893 | 7 | 210.476 | 16 | |||
| DNF | 25 | Francois Hesnault | France | Ligier Renault | Michelin | 7 | Spun Off | 11:45.177 | 1:37.300 | 4 | 207.267 | 18 | |||
| DNF | 9 | Philippe Alliot | France | RAM Hart | Pirelli | 6 | Electrical | 10:16.938 | 1:38.647 | 5 | 203.067 | 23 | |||
| DNF | 28 | René Arnoux | France | Ferrari | Goodyear | 5 | Gearbox | 8:19.892 | 1:35.453 | 5 | 208.845 | 14 | |||
| DNF | 7 | Alain Prost | France | McLaren TAG | Michelin | 3 | Engine | 4:54.969 | 1:35.604 | 3 | 212.361 | 2 | |||
| DNS | 14 | Manfred Winkelhock | Germany | ATS BMW | Pirelli | 0 | 21 | ||||||||
| DNQ | 20 | Pierluigi Martini | Italy | Toleman Hart | Michelin |