The men's 100 metres was a sprinting event on the athletics programme at the 1900 Summer Olympics in Paris.

American Arthur Duffey had recently won the AAA Championships (at 100 yards) and was heavily favored.

[1] Unofficial world record holder (in an eight-way tie) Isaac Westergren of Sweden also entered the competition.

The fastest of the preliminary heats featured two of the eventual medallists; Jarvis won by a metre and equalled the world record.

In an all-American heat, Burroughs defeated Boardman by a yard; Slack, in third, was the only American to be eliminated in the first round.

Duffey dropped almost half a second from his preliminary heat time to beat Rowley by five feet.

Tewksbury equalled the world record, the second runner to accomplish that at the Paris Games, to beat Leiblee by six inches, while Doerry pulled up lame.