Ayrton Senna won the Monaco Grand Prix 1991 at Circuit de Monaco on 12 May 1991, starting from pole position. Nigel Mansell finished second for Williams, with Jean Alesi completing the podium for Ferrari.
| Pos | Driver | Team | Grid | Pts | FL | Status |
|---|---|---|---|---|---|---|
1 | | | 1 | 10 | Finished | |
2 | | | 5 | 6 | Finished | |
3 | | | 9 | 4 | Finished | |
4 | | 8 | 3 | +1 Lap | ||
5 | | 7 | 2 | +1 Lap | ||
6 | | 12 | 1 | +1 Lap | ||
7 | | 16 | 0 | +2 Laps | ||
8 | | 23 | 0 | +2 Laps | ||
9 | | 13 | 0 | +2 Laps | ||
10 | | 26 | 0 | +2 Laps | ||
11 | | 21 | 0 | +3 Laps | ||
12 | | 14 | 0 | +6 Laps | ||
R | | 25 | 0 | Oil leak | ||
R | | 17 | 0 | Gearbox | ||
R | | 15 | 0 | Throttle | ||
R | | 2 | 0 | Engine | ||
R | | 3 | 0 | Spun off | ||
R | | 19 | 0 | Spun off | ||
R | | 22 | 0 | Engine | ||
R | | 11 | 0 | Spun off | ||
R | | 20 | 0 | Engine | ||
R | | 10 | 0 | Throttle | ||
R | | 18 | 0 | Brakes | ||
R | | 24 | 0 | Gearbox | ||
R | | 6 | 0 | Spun off | ||
R | | 4 | 0 | Suspension | ||
F | | 0 | 0 | Did not qualify | ||
F | | 0 | 0 | Did not qualify | ||
F | | 0 | 0 | Did not qualify | ||
F | | 0 | 0 | Did not qualify | ||
F | | 0 | 0 | Did not prequalify | ||
F | | 0 | 0 | Did not prequalify | ||
F | | 0 | 0 | Did not prequalify | ||
F | | 0 | 0 | Did not prequalify |