Debutants
Guido Carlesi is the youngest debutant in Giro d'Italia in 1957. There are 43 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | CARLESI Guido | Bottecchia - Gripo | 20y + 192d |
| 2 | VELUCCHI Nello | Atala | 21y + 98d |
| 3 | BARALE Germano | San Pellegrino Sport | 21y + 116d |
| 4 | SABBADIN Alfredo | San Pellegrino Sport | 21y + 118d |
| 5 | RONCHINI Diego | Bianchi - Pirelli | 21y + 160d |
| 6 | VANNITSEN Willy | Peugeot - BP - Dunlop | 22y + 99d |
| 7 | KERSTEN Jaap | Girardengo - E.R.G. | 22y + 189d |
| 8 | CESTARI Aurelio | Atala | 22y + 336d |
| 9 | BARALE Giuseppe | San Pellegrino Sport | 22y + 351d |
| 10 | FINI Giacomo | Faema - Guerra | 23y + 34d |
| 11 | STREHLER René | Faema - Guerra | 23y + 35d |
| 12 | BOTTECCHIA Emilio | Bottecchia - Gripo | 23y + 144d |
| 13 | BAGNARA Rino | Torpado - Girardengo | 23y + 236d |
| 14 | RESTELLI Ezio | San Pellegrino Sport | 23y + 242d |
| 15 | MORESI Attilio | Faema - Guerra | 23y + 296d |
| 16 | PELLEGRINI Armando | Faema - Guerra | 23y + 349d |
| 17 | BALDINI Ercole | Legnano | 24y + 112d |
| 18 | TESSARI Silvano | San Pellegrino Sport | 24y + 112d |
| 19 | MISEROCCHI Angelo | Bianchi - Pirelli | 24y + 134d |
| 20 | ROMAGNOLI Benito | Torpado - Girardengo | 24y + 190d |
| 21 | FAVERO Vito | Bottecchia - Gripo | 24y + 209d |
| 22 | MAUSO Giuseppe | Bottecchia - Gripo | 24y + 212d |
| 23 | PISCAGLIA Angiolino | San Pellegrino Sport | 24y + 219d |
| 24 | MOXHET Jean | Peugeot - BP - Dunlop | 24y + 240d |
| 25 | NICOLO Carlo | San Pellegrino Sport | 24y + 310d |
| 26 | COHEN Max | V.C. Bustese | 25y + 25d |
| 27 | BRUNI Dino | Bianchi - Pirelli | 25y + 35d |
| 28 | CIAMPI Silvano | Faema - Guerra | 25y + 85d |
| 29 | LE BER Claude | V.C. Bustese | 25y + 345d |
| 30 | VLAYEN André | Peugeot - BP - Dunlop | 26y + 62d |
| 31 | DANTE Giuseppe | San Pellegrino Sport | 26y + 65d |
| 32 | TOSATO Mario | Torpado - Girardengo | 26y + 158d |
| 33 | ACCORDI Renzo | Arbos - Bif - Welter | 26y + 268d |
| 34 | COMPANY Gabriel | Ignis - Doniselli | 27y + 2d |
| 35 | DONKER Ab | Girardengo - E.R.G. | 27y + 32d |
| 36 | CHACÓN Miguel | Ignis - Doniselli | 27y + 124d |
| 37 | CASSANO Colombo | Carpano - Coppi | 27y + 155d |
| 38 | MODENA Velasco | Arbos - Bif - Welter | 27y + 305d |
| 39 | CALVI Giuseppe | Torpado - Girardengo | 28y + 78d |
| 40 | MORI Mario | Arbos - Bif - Welter | 29y + 45d |
| 41 | BARBOTIN Pierre | V.C. Bustese | 30y + 231d |
| 42 | ROLLAND Antonin | V.C. Bustese | 32y + 257d |
| 43 | MICHELON Giovanni | Asborno - Frejus |