The men's vault competition was one of eight events for male competitors in artistic gymnastics at the 1984 Summer Olympics in Los Angeles. The qualification and final rounds took place on July 29, 31 and August 4 at UCLA’s Pauley Pavilion. There were 71 competitors from 19 nations, with nations competing in the team event having 6 gymnasts while other nations could have to up to 3 gymnasts. The event was won by Lou Yun of China, in the nation's debut in the Games.