The 1977 World Junior Ice Hockey Championships (1977 WJHC) were held between December 22, 1976, and January 2, 1977, in Banská Bystrica and Zvolen, Czechoslovakia.

[1] This was the fourth edition of the Ice Hockey World Junior Championship, but the first to be included in official IIHF records.

[2] Canada was represented by the 1976 Memorial Cup champions St. Catharines Fincups with eight additions from other OHA teams,[3] but the other seven nations were represented by teams of their top under-20 players.

[4] The tournament was expanded to eight teams, with West Germany and Poland making their debut.

While not relegated, Poland did have the opportunity to play a challenge against Switzerland for inclusion in the 1978 World Junior Ice Hockey Championships, but declined.