The 1931 Ice Hockey World Championships was the fifth World Championship, an annual international ice hockey tournament. It took place between 1 and 8 February 1931 in Krynica, Poland. The tournament was won by Canada who were represented by the University of Manitoba Grads team, claiming their fifth world championship title by finishing on top of the group in the final round with a total of nine points. The United States finished second to win the silver medal, losing only one game to Canada and Austria finished third for the bronze medal. The host nation of Poland finished fourth at the tournament after winning one game, tying one, and losing three in the final round.
The World Championship also acted simultaneously as the 15th European Championship. Austria who finished highest of the European teams in third were named the champions.