| 3–14 March|
| Soviet Union (6th title)|
The 1966 World Ice Hockey Championships was the 33rd edition of the Ice Hockey World Championships. The tournament was held in Hala Tivoli, Ljubljana, SR Slovenia, SFR Yugoslavia from March 3 to March 14, 1966. For the fourth straight year, the Soviet Union won the tournament. For the Soviets, it was their sixth World and tenth European title. The Czechs beat both Canada and Sweden two to one, to take the Silver, while the Swedes' historic loss to East Germany helped put them fourth behind Canada for the Bronze.
The lower two tiers (Groups B and C) were formalized, so there would be no more qualifying tournaments with promotion and relegation taking places between these two tournaments as well. West Germany won all their games to return to the top level of competition while Great Britain went winless and was replaced by Group C winner Italy.
1966 World Ice Hockey Championships Wikipedia
Romania qualified in Group B
Italy and France qualified in Group C
Poland was relegated to Group B for 1967.
West Germany was promoted to the top level while Great Britain was relegated to Group C for 1967 (but did not participate again until 1971).
A Yugoslav 'B' team participated unofficially in the tournament, playing games against each of the three other participating nations. This was South Africa's last appearance in the World Championships until 1992.
Italy was promoted to Group B, France decided not to participate, Yugoslavia B team participated instead of France
The final standings of the tournament according to IIHF:
Please note: At the time of the championship Sweden was awarded the bronze, however, East Germany should have won because of their better record amongst only European clubs. In 1999 this mistake was corrected and living players were presented with the medals they were supposed to have won.
The final standings of the European championships according to IIHF: