MONACO GRAND PRIX - FASTEST LAPS
12 May 1991
Circuit de Monaco, Monaco
| Pos. | No. | Driver | Team | Lap | Time | 
|---|---|---|---|---|---|
| 1 | 27 | Alain ProstPRO | Ferrari | 77 | 1:24.368 | 
| 2 | 5 | Nigel MansellMAN | Williams Renault | 53 | 1:24.850 | 
| 3 | 6 | Riccardo PatresePAT | Williams Renault | 34 | 1:25.147 | 
| 4 | 2 | Gerhard BergerBER | McLaren Honda | 6 | 1:25.228 | 
| 5 | 1 | Ayrton SennaSEN | McLaren Honda | 32 | 1:25.250 | 
| 6 | 4 | Stefano ModenaMOD | Tyrrell Honda | 34 | 1:25.629 | 
| 7 | 19 | Roberto MorenoMOR | Benetton Ford | 31 | 1:25.823 | 
| 8 | 28 | Jean AlesiALE | Ferrari | 51 | 1:26.055 | 
| 9 | 33 | Andrea de CesarisDEC | Jordan Ford | 10 | 1:26.257 | 
| 10 | 11 | Mika HakkinenHAK | Lotus Judd | 64 | 1:26.627 | 
| 11 | 21 | Emanuele PirroPIR | Dallara Judd | 52 | 1:26.924 | 
| 12 | 32 | Bertrand GachotGAC | Jordan Ford | 64 | 1:27.163 | 
| 13 | 26 | Erik ComasCOM | Ligier Lamborghini | 40 | 1:27.304 | 
| 14 | 22 | Jyrki JarvilehtoJAR | Dallara Judd | 41 | 1:27.541 | 
| 15 | 29 | Eric BernardBER | Lola Ford | 64 | 1:27.624 | 
| 16 | 8 | Mark BlundellBLU | Brabham Yamaha | 33 | 1:27.641 | 
| 17 | 3 | Satoru NakajimaNAK | Tyrrell Honda | 11 | 1:27.740 | 
| 18 | 23 | Pierluigi MartiniMAR | Minardi Ferrari | 49 | 1:27.740 | 
| 19 | 25 | Thierry BoutsenBOU | Ligier Lamborghini | 71 | 1:27.787 | 
| 20 | 15 | Mauricio GugelminGUG | Leyton House Ilmor | 37 | 1:28.012 | 
| 21 | 24 | Gianni MorbidelliMOR | Minardi Ferrari | 41 | 1:28.648 | 
| 22 | 30 | Aguri SuzukiSUZ | Lola Ford | 6 | 1:28.661 | 
| 23 | 16 | Ivan CapelliCAP | Leyton House Ilmor | 4 | 1:28.803 | 
| 24 | 17 | Gabriele TarquiniTAR | AGS Ford | 7 | 1:29.711 | 
| 25 | 9 | Michele AlboretoALB | Footwork Porsche | 6 | 1:30.366 |