The 1966 FIVB Men's World Championship was the sixth edition of the tournament, organised by the world's governing body, the FIVB.

It was held from 30 August to 11 September 1966 in Czechoslovakia.

For the first time the teams were restricted to 24.

First 12 teams from 1962 World Championship (including host country) and 3 teams from each continent (Europe, Asia, America and Africa) were qualified to 1966 edition.

Location: Prague Location: Nitra Location: České Budějovice Location: Jihlava The results and the points of the matches between the same teams that were already played during the first round are taken into account for the final round.