Jackie Stewart won the Italian Grand Prix 1965 at Autodromo Nazionale di Monza on 12 September 1965, starting from P3 on the grid. Graham Hill finished second for BRM, with Dan Gurney completing the podium for Brabham-Climax.
| Pos | Grid | Driver | Team | Laps | Time / Status | Pts | FL |
|---|---|---|---|---|---|---|---|
| 1 | 3 | Jackie StewartSTE | BRM | 76 | 2:04:52.8 | 9 | |
| 2 | 4 | Graham HillHIL | BRM | 76 | +3.3 | 6 | |
| 3 | 9 | Dan GurneyGUR | Brabham-Climax | 76 | +16.5 | 4 | |
| 4 | 5 | Lorenzo BandiniBAN | Ferrari | 76 | +1:15.9 | 3 | |
| 5 | 11 | Bruce McLarenMCL | Cooper-Climax | 75 | +1 Lap | 2 | |
| 6 | 13 | Richard AttwoodATT | Lotus-BRM | 75 | +1 Lap | 1 | |
| 7 | 14 | Jo BonnierBON | Brabham-Climax | 74 | +2 Laps | 0 | |
| 8 | 7 | Jochen RindtRIN | Cooper-Climax | 74 | +2 Laps | 0 | |
| 9 | 18 | Innes IrelandIRE | Lotus-BRM | 74 | +2 Laps | 0 | |
| 10 | 1 | Jim ClarkCLA | Lotus-Climax | 63 | Fuel pump | 0 | |
| 11 | 8 | Mike SpenceSPE | Lotus-Climax | 62 | Alternator | 0 | |
| 12 | 15 | Nino VaccarellaVAC | Ferrari | 58 | Engine | 0 | |
| 13 | 21 | Roberto BussinelloBUS | BRM | 58 | Oil pressure | 0 | |
| 14 | 17 | Richie GintherGIN | Honda | 56 | Ignition | 0 | |
| R | 12 | Denny HulmeHUL | Brabham-Climax | 46 | Suspension | 0 | |
| R | 16 | Frank GardnerGAR | Brabham-BRM | 45 | Engine | 0 | |
| R | 10 | Jo SiffertSIF | Brabham-BRM | 43 | Gearbox | 0 | |
| R | 20 | Giacomo RussoRUS | Lotus-Climax | 37 | Gearbox | 0 | |
| R | 2 | John SurteesSUR | Ferrari | 34 | Clutch | 0 | |
| R | 6 | Ronnie BucknumBUC | Honda | 27 | Ignition | 0 | |
| R | 23 | Masten GregoryGRE | BRM | 22 | Gearbox | 0 | |
| R | 19 | Giancarlo BaghettiBAG | Brabham-Climax | 12 | Engine | 0 | |
| R | 22 | Giorgio BassiBAS | BRM | 8 | Engine | 0 |