Circuit de Monaco · 12 May 1991
| Pos | Team | Points Breakdown | Pts | |
|---|---|---|---|---|
| 1 | McLaren Senna 10 + Berger 0 | Senna 10 + Berger 0 | 10 | |
| 2 | Williams Mansell 6 + Patrese 0 | Mansell 6 + Patrese 0 | 6 | |
| 3 | Ferrari Alesi 4 + Prost 2 | Alesi 4 + Prost 2 | 6 | |
| 4 | Benetton Moreno 3 + Piquet 0 | Moreno 3 + Piquet 0 | 3 | |
| 5 | Dallara Pirro 1 + Järvilehto 0 | Pirro 1 + Järvilehto 0 | 1 | |
| 6 | Ligier Boutsen 0 + Comas 0 | Boutsen 0 + Comas 0 | 0 | |
| 7 | Jordan Gachot 0 + Cesaris 0 | Gachot 0 + Cesaris 0 | 0 | |
| 8 | Lola Bernard 0 + Suzuki 0 | Bernard 0 + Suzuki 0 | 0 | |
| 9 | Minardi Martini 0 + Morbidelli 0 | Martini 0 + Morbidelli 0 | 0 | |
| 10 | Team Lotus Häkkinen 0 | Häkkinen 0 | 0 | |
| 11 | Leyton House Gugelmin 0 + Capelli 0 | Gugelmin 0 + Capelli 0 | 0 | |
| 12 | Tyrrell Modena 0 + Nakajima 0 | Modena 0 + Nakajima 0 | 0 | |
| 13 | Brabham Blundell 0 | Blundell 0 | 0 | |
| 14 | Footwork Alboreto 0 | Alboreto 0 | 0 | |
| 15 | AGS Tarquini 0 | Tarquini 0 | 0 |
| Pos | Driver | Team | Race time / Gap | Laps | Stops | Pts | |
|---|---|---|---|---|---|---|---|
| 1 | Ayrton Senna McLaren | McLaren | 1:53:02.334 | 78 | — | 10 | |
| 2 | Nigel Mansell Williams | Williams | +18.348s | 78 | — | 6 | |
| 3 | Jean Alesi Ferrari | Ferrari | +47.455s | 78 | — | 4 | |
| 4 | Roberto Moreno Benetton | Benetton | — | 77 | — | 3 | |
| 5 | Alain Prost Ferrari | Ferrari | — | 77 | — | 2 | |
| 6 | Emanuele Pirro Dallara | Dallara | — | 77 | — | 1 | |
| 7 | Thierry Boutsen Ligier | Ligier | — | 76 | — | — | |
| 8 | Bertrand Gachot Jordan | Jordan | — | 76 | — | — | |
| 9 | Éric Bernard Lola | Lola | — | 76 | — | — | |
| 10 | Érik Comas Ligier | Ligier | — | 76 | — | — | |
| 11 | Jyrki Järvilehto Dallara | Dallara | — | 75 | — | — | |
| 12 | Pierluigi Martini Minardi | Minardi | — | 72 | — | — | |
| 13 | Mika Häkkinen Team Lotus | Team Lotus | — | 64 | — | — | |
| 14 | Gianni Morbidelli Minardi | Minardi | — | 49 | — | — | |
| 15 | Maurício Gugelmin Leyton House | Leyton House | — | 43 | — | — | |
| 16 | Stefano Modena Tyrrell | Tyrrell | — | 42 | — | — | |
| 17 | Riccardo Patrese Williams | Williams | — | 42 | — | — | |
| 18 | Mark Blundell Brabham | Brabham | — | 41 | — | — | |
| 19 | Michele Alboreto Footwork | Footwork | — | 39 | — | — | |
| 20 | Satoru Nakajima Tyrrell | Tyrrell | — | 35 | — | — | |
| 21 | Aguri Suzuki Lola | Lola | — | 24 | — | — | |
| 22 | Andrea de Cesaris Jordan | Jordan | — | 21 | — | — | |
| 23 | Ivan Capelli Leyton House | Leyton House | — | 12 | — | — | |
| 24 | Gabriele Tarquini AGS | AGS | — | 9 | — | — | |
| 25 | Gerhard Berger McLaren | McLaren | — | 9 | — | — | |
| 26 | Nelson Piquet Benetton | Benetton | — | 0 | — | — |