Debutants
Marino Basso is the youngest debutant in Giro d'Italia in 1966. There are 36 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | BASSO Marino | Mainetti | 20y + 351d |
| 2 | FARISATO Lino | Mainetti | 21y + 64d |
| 3 | DESTRO Giorgio | Mainetti | 21y + 124d |
| 4 | BONSO Renato | Mainetti | 21y + 241d |
| 5 | NOLMANS Jan | Dr. Mann - Grundig | 21y + 310d |
| 6 | BALLINI Roberto | Filotex - Fiorelli | 22y + 65d |
| 7 | ANNI Mario | Molteni - Hutchinson | 22y + 177d |
| 8 | POLIDORI Giancarlo | Vittadello | 22y + 200d |
| 9 | HOUBRECHTS Antoon | Dr. Mann - Grundig | 22y + 254d |
| 10 | KNAPP Giovanni | Vittadello | 22y + 294d |
| 11 | PREZIOSI Carmine | Bianchi | 22y + 314d |
| 12 | MANZA Ferruccio | Legnano - Pirelli | 23y + 22d |
| 13 | GELLI Paolo | Filotex - Fiorelli | 23y + 42d |
| 14 | BOONS Jos | Dr. Mann - Grundig | 23y + 94d |
| 15 | DA DALT Mario | Sanson | 23y + 105d |
| 16 | PORTALUPI Ambrogio | Vittadello | 23y + 113d |
| 17 | PESENTI Vittorio | Salvarani | 23y + 215d |
| 18 | GRASSI Giuseppe | Filotex - Fiorelli | 23y + 225d |
| 19 | CUCCHIETTI Gianpaolo | Sanson | 23y + 327d |
| 20 | PAUWELS Henri | Dr. Mann - Grundig | 24y + 9d |
| 21 | CENTOMO Bruno | Legnano - Pirelli | 24y + 95d |
| 22 | HUYSMANS Jos | Dr. Mann - Grundig | 24y + 151d |
| 23 | FANTINATO Bruno | Salvarani | 24y + 192d |
| 24 | CASALINI Emilio | Legnano - Pirelli | 24y + 194d |
| 25 | MASSIGNAN Enrico | Bianchi | 24y + 234d |
| 26 | HAESELDONCKX Joseph | Dr. Mann - Grundig | 24y + 333d |
| 27 | CAMPAGNARI Pietro | Mainetti | 25y + 3d |
| 28 | DEFERM Fernand | Dr. Mann - Grundig | 25y + 201d |
| 29 | LIEVORE Lucillo | Mainetti | 25y + 308d |
| 30 | BOONEN Jan | Dr. Mann - Grundig | 26y + 54d |
| 31 | HUGENS Jan | Ford France - Hutchinson | 27y + 57d |
| 32 | ALTIG Rudi | Molteni - Hutchinson | 29y + 61d |
| 33 | DENSON Vin | Ford France - Hutchinson | 30y + 175d |
| 34 | THIÉLIN Gérard | Ford France - Hutchinson | 31y + 50d |
| 35 | JIMÉNEZ Julio | Ford France - Hutchinson | 31y + 202d |
| 36 | MESSELIS André | Dr. Mann - Grundig | 35y + 90d |