The men's 400 metres hurdles at the 2013 World Championships in Athletics was held at the Luzhniki Stadium on 12–15 August.

[1] In the second semifinal, it took Emir Bekrić a new Serbian national record to get the second automatic qualifier behind Michael Tinsley.

In the final Kerron Clement was out like a rocket, first over the first barrier, but long strides in lane one don't usually work out.

In one of the best dives of modern time, Gordon snatched the win, then one step later falling to the track.

Bekrić might have been the fastest finisher, coming from fifth place to third on the final straight setting a second national record at 48.05 Prior to the competition, the records were as follows: All times are local times (UTC+4) Qualification: First 4 in each heat (Q) and the next 4 fastest (q) advanced to the semifinals.