Athletics at the 1920 Summer Olympics – Men's 4 × 100 metres relay
The men's 4 × 100 metres relay event was part of the track and field athletics programme at the 1920 Summer Olympics. It was the second appearance of this event. The competition was held on Saturday, August 21, 1920, and on Sunday, August 22, 1920. Fifty-two runners from 13 nations competed.