The 1972 Ice Hockey World Championships was the 39th edition of the Ice Hockey World Championships. The tournament was held in Prague, Czechoslovakia from 7 to 22 April 1972, and the Czechoslovakia national team won the tournament, the third time they had done so and first since 1949, ending the Soviet Union's streak of nine consecutive titles. In addition it was the Czechoslovaks' 12th European title.

The Ice Hockey World Championships are an annual international men's ice hockey tournament organized by the International Ice Hockey Federation (IIHF). First officially held at the 1920 Summer Olympics. The IIHF was created in 1908 while the European Championships, the precursor to the World Championships, were first held in 1910. The tournament held at the 1920 Summer Olympics is recognized as the first Ice Hockey World Championship. From 1920 to 1968, the Olympic hockey tournament was also considered the World Championship for that year.