The men's high jump event was part of the track and field athletics programme at the 1936 Summer Olympics.
Johnson's fellow Americans Dave Albritton and Delos Thurber took silver and bronze to complete the podium sweep, the second time (after the inaugural Games in 1896) the United States had taken all three medals in the event.
Johnson was the slight favorite over his countryman Dave Albritton; both had jumped 2.07 metres at the U.S. trials to break the world record.
The United States appeared for the tenth time, having competed at each edition of the Olympic men's high jump to that point.
Four men cleared the bar at 2.00 metres, besting the Olympic record: Cornelius Johnson, Dave Albritton, Delos Thurber, and Kalevi Kotkas.