Debutants
Maurice Izier is the youngest debutant in Critérium du Dauphiné Libéré in 1966. There are 10 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | IZIER Maurice | Pelforth - Sauvage - Lejeune - Wolber | 22y + 78d |
| 2 | RAYMOND Christian | Peugeot - Michelin - BP | 22y + 162d |
| 3 | ZOET Bart | Televizier - Batavus | 23y + 227d |
| 4 | KARSTENS Gerben | Televizier - Batavus | 24y + 141d |
| 5 | COOREMAN Roger | Dr. Mann - Grundig | 24y + 344d |
| 6 | SAN MIGUEL Gregorio | Kas - Kaskol | 25y + 184d |
| 7 | GONZÁLEZ Aurelio | Kas - Kaskol | 25y + 313d |
| 8 | ZILVERBERG Huub | Televizier - Batavus | 27y + 142d |
| 9 | DE PRA Tommaso | Molteni - Hutchinson | 27y + 170d |
| 10 | NIJDAM Henk | Televizier - Batavus | 30y + 251d |