The 1966 Critérium du Dauphiné Libéré was the 20th edition of the cycle race and was held from 4 June to 11 June 1966. The race started in Évian and finished at Grenoble. The race was won by Raymond Poulidor of the Mercier team.

General classification

RankRiderTeamTime
Final general classification Rank Rider Team Time 1 Raymond Poulidor (FRA) Mercier–BP–Hutchinson 46h 13' 05" 2 Carlos Echeverría (ESP) Kas–Kaskol + 2' 04" 3 Francisco Gabica (ESP) Kas–Kaskol + 2' 26" 4 Christian Raymond (FRA) Peugeot–BP–Michelin + 4' 48" 5 Lucien Aimar (FRA) Ford France–Hutchinson + 5' 10" 6 Henri Guimbard (FRA) Grammont–Tigra + 5' 18" 7 Gregorio San Miguel (ESP) Kas–Kaskol + 6' 12" 8 Cees Haast (NED) Televizier–Batavus + 8' 18" 9 Jean-Claude Theillière (FRA) Ford France–Hutchinson + 11' 25" 10 Aurelio González (ESP) Kas–Kaskol + 12' 44"
1Raymond Poulidor (FRA)Mercier–BP–Hutchinson46h 13' 05"
2Carlos Echeverría (ESP)Kas–Kaskol+ 2' 04"
3Francisco Gabica (ESP)Kas–Kaskol+ 2' 26"
4Christian Raymond (FRA)Peugeot–BP–Michelin+ 4' 48"
5Lucien Aimar (FRA)Ford France–Hutchinson+ 5' 10"
6Henri Guimbard (FRA)Grammont–Tigra+ 5' 18"
7Gregorio San Miguel (ESP)Kas–Kaskol+ 6' 12"
8Cees Haast (NED)Televizier–Batavus+ 8' 18"
9Jean-Claude Theillière (FRA)Ford France–Hutchinson+ 11' 25"
10Aurelio González (ESP)Kas–Kaskol+ 12' 44"