The 1977 Ice Hockey World Championships took place in Vienna, Austria from 21 April to 8 May. Eight teams took part, first playing each other once, then the four best teams advancing to a new round. The tournament was also the 55th ice hockey European Championship. Czechoslovakia won for the fifth time, and second in a row, claiming their 14th and final European title as well.
The tournament itself was very close for the medals, with a spectacular last day. Canada, with a chance still to get a bronze, set a record by defeating the eventual champions eight to two. Never before had a first place team lost a game that badly. But the Swedes, by beating the Soviets for a second time, saved the Czechs, and at the same time pushed themselves into second and Canada into fourth.