The FIS Alpine World Ski Championships 1966 were held in South America from 4–14 August at Portillo, Chile. To this day, it remains the only alpine world championships contested in the southern hemisphere. It took place well out of the established season, nearly five months before the first World Cup season, which began in early January 1967. Assignment came at the FIS-Congress at Athens in May 1963, but West Germany, Switzerland, and Austria voted against. The French team won seven of the eight individual titles, seven silver medals, and sixteen of the 24 medals.

Men's competitions

Downhill

Sunday, 7 August

Giant Slalom

Tuesday, 9 August (run 1) Wednesday, 10 August (run 2)

Slalom

Sunday, 14 August

Combined

At the World Championships from 1954 through 1980, the combined was a "paper race" using the results of the three events (DH, GS, SL).

Women's competitions

Downhill

Monday, 8 August Erika Schinegger of Austria originally won the gold medal in 1:32.63 (−0.79 sec), but failed a gender test prior to the 1968 Winter Olympics. Over 22 years later, Schinegger handed the gold medal to Marielle Goitschel in 1988.

Giant Slalom

Thursday, 11 August

Slalom

Friday, 5 August

Combined

At the World Championships from 1954 through 1980, the combined was a "paper race" using the results of the three events (DH, GS, SL).

Medals table