Athletics at the 2004 Summer Olympics – Men's 400 metres

Men's 400 metres
at the Games of the XXVIII Olympiad
Olympic Athletics
VenueAthens Olympic Stadium
Dates20–23 August
Competitors62 from 48 nations
Winning time44.00
Medalists
Jeremy Wariner  United States
Otis Harris  United States
Derrick Brew  United States

The men's 400 metres at the 2004 Summer Olympics as part of the athletics program were held at the Athens Olympic Stadium from August 20 to 23. Sixty-two athletes from 48 nations competed. The event was won by Jeremy Wariner of the United States, the sixth in what would ultimately be 7 consecutive American victories stretching from 1984 to 2008 and the 18th overall title in the event by the United States. The United States swept the podium for the 4th time in the event (1904, 1968, 1988).