1986 Italian Grand Prix
- Round
- 13 of 1986
- Circuit
- Autodromo Nazionale Monza
- Location
- Monza, Italy
- Dates
- —
- Format
- Standard weekend
- Winner
- Nelson Piquet
- Constructor
- Williams
- Entrant
- Williams-Honda
- Pole position
- Teo Fabi
- Fastest lap
- Teo Fabi
- Confidence
- reference
Classification
| Pos | Driver | Constructor | Grid | Laps | Points | Status |
|---|---|---|---|---|---|---|
| 1 | Nelson Piquet | Williams | 6 | 51 | 9 | — |
| 2 | Nigel Mansell | Williams | 3 | 51 | 6 | — |
| 3 | Stefan Johansson | Ferrari | 12 | 51 | 4 | — |
| 4 | Keke Rosberg | McLaren | 8 | 51 | 3 | — |
| 5 | Gerhard Berger | Benetton | 4 | 50 | 2 | — |
| 6 | Alan Jones | Lola | 18 | 49 | 1 | — |
| 7 | Thierry Boutsen | Arrows | 13 | 49 | — | — |
| 8 | Christian Danner | Arrows | 16 | 49 | — | — |
| 9 | Philippe Streiff | Tyrrell | 23 | 49 | — | — |
| 10 | Martin Brundle | Tyrrell | 20 | 49 | — | — |
| 11 | Alex Caffi | Osella | 27 | 45 | — | — |
| DNF | Teo Fabi | Benetton | 1 | 44 | — | Puncture · fastest lap |
| DSQ | Alain Prost | McLaren | 2 | 27 | — | Illegal car change |
| DNF | Ayrton Senna | Team Lotus | 5 | 0 | — | Transmission |
| DNF | Derek Warwick | Brabham | 7 | 16 | — | Spun off |
| DNF | Michele Alboreto | Ferrari | 9 | 33 | — | Engine |
| DNF | Riccardo Patrese | Brabham | 10 | 2 | — | Accident |
| DNF | Rene Arnoux | Ligier | 11 | 30 | — | Gearbox |
| DNF | Philippe Alliot | Ligier | 14 | 22 | — | Engine |
| DNF | Patrick Tambay | Lola | 15 | 2 | — | Accident |
| DNF | Johnny Dumfries | Team Lotus | 17 | 18 | — | Gearbox |
| DNF | Alessandro Nannini | Minardi | 19 | 15 | — | Electrical |
| DNF | Andrea de Cesaris | Minardi | 21 | 33 | — | Engine |
| DNF | Jonathan Palmer | Zakspeed | 22 | 27 | — | Engine |
| DNF | Huub Rothengatter | Zakspeed | 24 | 1 | — | Engine |
| DNF | Ivan Capelli | AGS | 25 | 31 | — | Puncture |
| DNF | Piercarlo Ghinzani | Osella | 26 | 12 | — | Suspension |