Athletics at the 2000 Summer Olympics – Men's 100 metres
The men's 100 metres at the 2000 Summer Olympics as part of the athletics program were held at the Stadium Australia from September 22 to 23. Ninety-seven athletes from 71 nations competed. Each nation was limited to 3 athletes per rules in force since the 1930 Olympic Congress. The event was won by American Maurice Greene, the United States's first title in the event since 1988 and 15th overall. Ato Boldon of Trinidad and Tobago improved on his 1996 bronze with a silver in Sydney. Obadele Thompson won the first-ever medal in the men's 100 metres for Barbados with bronze.