The men’s 4×100 metres relay was one of 23 track events of the athletics at the 2004 Summer Olympics in Athens. It was contested at the Athens Olympic Stadium from August 27 and August 28 by a total of sixteen national teams comprising 64 athletes.The sixteen teams competed in a two-heat qualifying round in which the first three teams from each heat together with the next two fastest teams were given a place in the final race.