| Type: | F1 |
| Country: | Canada |
| Grand Prix: | Canadian |
| Date: | 17 June |
| Year: | 1984 |
| Race No: | 7 |
| Season No: | 16 |
| Official Name: | XXIII Grand Prix du Canada |
| Location: | Circuit Gilles Villeneuve Montreal, Quebec, Canada |
| Course: | Temporary street circuit |
| Course Mi: | 2.740 |
| Course Km: | 4.410 |
| Distance Laps: | 70 |
| Distance Mi: | 191.817 |
| Distance Km: | 308.700 |
| Weather: | Dry with temperatures approaching 26C; wind speeds up to 12.9km/h[1] |
| Pole Driver: | Nelson Piquet |
| Pole Team: | Brabham-BMW |
| Pole Time: | 1:25.442 |
| Pole Country: | BRA |
| Pole Flag Suffix: | 1968 |
| Fast Team: | Brabham-BMW |
| Fast Time: | 1:28.763 |
| Fast Lap: | 55 |
| Fast Country: | BRA |
| Fast Flag Suffix: | 1968 |
| First Driver: | Nelson Piquet |
| First Team: | Brabham-BMW |
| First Country: | BRA |
| First Flag Suffix: | 1968 |
| Second Driver: | Niki Lauda |
| Second Team: | McLaren-TAG |
| Second Country: | AUT |
| Third Driver: | Alain Prost |
| Third Team: | McLaren-TAG |
| Third Country: | FRA |
The 1984 Canadian Grand Prix was a Formula One motor race held at Circuit Gilles Villeneuve, Montreal on 17 June 1984. It was the seventh race of the 1984 Formula One World Championship.
The 70-lap race was won by Brazilian Nelson Piquet, driving a Brabham-BMW. Piquet took pole position, led all 70 laps and set the fastest race lap, finishing 2.6 seconds ahead of Austrian Niki Lauda in the McLaren-TAG. Lauda's French teammate, Alain Prost, finished third.
The top six was completed by Elio de Angelis in the Lotus-Renault, René Arnoux in the Ferrari, and Nigel Mansell in the other Lotus-Renault.
After the race, Piquet climbed out of his car and collapsed on the ground, due to a badly burned right foot caused by the extreme heat from his Brabham's new nose-mounted oil cooler which had actually burned a hole in his driving boot. In the next race at Detroit, he had a special tray of ice for easing the blisters on his foot.
| Pos | No | Driver | Constructor | Q1 | Q2 | Gap | |
|---|---|---|---|---|---|---|---|
| 1 | 1 |  Nelson Piquet | Brabham-BMW | 1:27.154 | 1:25.442 | — | |
| 2 | 7 |  Alain Prost | McLaren-TAG | 1:26.477 | 1:26.198 | +0.756 | |
| 3 | 11 |  Elio de Angelis | Lotus-Renault | 1:27.139 | 1:26.306 | +0.864 | |
| 4 | 16 |  Derek Warwick | Renault | 1:29.682 | 1:26.420 | +0.978 | |
| 5 | 28 | René Arnoux | Ferrari | 1:27.917 | 1:26.549 | +1.107 | |
| 6 | 27 | Michele Alboreto | Ferrari | 1:28.604 | 1:26.764 | +1.322 | |
| 7 | 12 | Nigel Mansell | Lotus-Renault | 1:28.277 | 1:27.246 | +1.804 | |
| 8 | 8 |  Niki Lauda | McLaren-TAG | 1:28.548 | 1:27.392 | +1.950 | |
| 9 | 19 | Ayrton Senna | Toleman-Hart | 1:29.282 | 1:27.448 | +2.006 | |
| 10 | 26 | Andrea de Cesaris | Ligier-Renault | 1:29.618 | 1:27.922 | +2.480 | |
| 11 | 23 |  Eddie Cheever | Alfa Romeo | 1:29.418 | 1:28.032 | +2.590 | |
| 12 | 14 | Manfred Winkelhock | ATS-BMW | 1:32.311 | 1:28.909 | +3.467 | |
| 13 | 25 | François Hesnault | Ligier-Renault | 1:31.146 | 1:29.187 | +3.745 | |
| 14 | 22 | Riccardo Patrese | Alfa Romeo | 1:29.205 | 1:30.064 | +3.763 | |
| 15 | 6 |  Keke Rosberg | Williams-Honda | 1:29.423 | 1:29.284 | +3.842 | |
| 16 | 2 | Corrado Fabi | Brabham-BMW | 1:30.831 | 1:29.764 | +4.322 | |
| 17 | 5 | Jacques Laffite | Williams-Honda | 1:30.115 | 1:29.915 | +4.473 | |
| 18 | 18 |  Thierry Boutsen | Arrows-BMW | 1:30.887 | 1:30.073 | +4.631 | |
| 19 | 24 | Piercarlo Ghinzani | Osella-Alfa Romeo | 1:32.189 | 1:30.918 | +5.476 | |
| 20 | 20 |  Johnny Cecotto | Toleman-Hart | 1:34.731 | 1:31.459 | +6.017 | |
| 21 | 3 | Martin Brundle | Tyrrell-Ford | 1:33.945 | 1:31.785 | +6.343 | |
| 22 | 4 | Stefan Bellof | Tyrrell-Ford | 1:34.309 | 1:31.797 | +6.355 | |
| 23 | 17 | Marc Surer | Arrows-Ford | 1:33.014 | 1:32.756 | +7.314 | |
| 24 | 21 | Huub Rothengatter | Spirit-Hart | 1:35.217 | 1:32.920 | +7.478 | |
| 25 | 10 |  Mike Thackwell | RAM-Hart | 1:34.921 | 1:33.750 | +8.288 | |
| 26 | 9 | Philippe Alliot | RAM-Hart | 1:35.286 | 1:36.900 | +9.844 | |
| WD | 15 | Patrick Tambay | Renault |
| Pos | Driver | Points | ||
|---|---|---|---|---|
| 1 | Alain Prost | 32.5 | ||
| 2 | Niki Lauda | 24 | ||
| 3 | René Arnoux | 16.5 | ||
| 4 | Elio de Angelis | 15.5 | ||
| 5 | Derek Warwick | 13 | ||
| Source: [2] | ||||
| Pos | Constructor | Points | ||
|---|---|---|---|---|
| 1 | McLaren-TAG | 56.5 | ||
| 2 | Ferrari | 25.5 | ||
| 3 | Lotus-Renault | 20.5 | ||
| 4 | Renault | 20 | ||
| 5 | Williams-Honda | 11 | ||
| Source: | ||||