1997 World Championships in Athletics - Men's 400 metres

These are the results of the Men's 400 metres event at the 1997 World Championships in Athletics in Athens, Greece.

First 4 of each Heat (Q) and the next 4 fastest (q) qualified for the quarterfinals.

First 3 of each Heat (Q) and the next 4 fastest (q) qualified for the semifinals.

First 4 of each Semifinal qualified directly (Q) for the final.