The 1991 Giro d'Italia of cycling, the 74th edition of the Corsa Rosa, was held from 26 May to 16 June 1991. It covered 3,715 km completed at an average speed of 37.03 km/h, for a total of 21 stages. It was won by the Italian Franco Chioccioli.
| Rank | Name | Country | Time |
|---|---|---|---|
| 1 | Franco Chioccioli | Italy | 99h 35' 43" |
| 2 | Claudio Chiappucci | Italy | + 3' 48" |
| 3 | Massimiliano Lelli | Italy | + 6' 56" |
| 4 | Gianni Bugno | Italy | + 7' 49" |
| 5 | Marino Lejarreta | Spain | + 10' 23" |
| 6 | Eric Boyer | France | + 11' 09" |
| 7 | Leonardo Sierra Sepulveda | Venezuela | + 11' 56" |
| 8 | Marco Giovannetti | Italy | + 13' 03" |
| 9 | Zenon Jaskuła | Poland | + 18' 22" |
| 10 | Eduardo Chozas Olmo | Spain | + 23' 42" |
| Cyclist | Country | Stages |
|---|---|---|
| Philippe Casado | France | 1st |
| Franco Chioccioli | Italy | 2nd-3rd, 5th-final |
| Eric Boyer | France | 4th |
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