The men's 4 × 100 metres relay races at the 2000 Summer Olympics as part of the athletics program were held on Friday 29 September and Saturday 30 September.
[1] The top two teams in each of the initial five heats automatically qualified for the semi-final.
The top three teams in each of the semi-finals automatically qualified for the final.
As of 2028, this is the last time the U.S. team won the men's 4 x 100 meters relay in track & field.
* Athletes who participated in the heats only and received medals.