The men's high jump event was part of the track and field athletics programme at the 1948 Summer Olympics. The competition was held on July 30, 1948. Twenty-seven athletes from 16 nations competed. The maximum number of athletes per nation had been set at 3 since the 1930 Olympic Congress. The final was won by John Winter of Australia. It was Australia's first victory in the men's high jump, and only the second time a jumper from outside the United States had won. Bjorn Paulson earned Norway's first medal in the event with a silver. George Stanich took bronze, keeping alive the United States' streak of medaling in every edition of the men's high jump.

John Arthur "Jack" Winter was an Australian high jumper who won that event at the 1948 Summer Olympics in London with a jump of 1.98 metres.