1991 World Championships in Athletics – Men's 400 metres hurdles

These are the official results of the Men's 400 metres Hurdles event at the 1991 IAAF World Championships in Tokyo, Japan. There were a total number of 36 participating athletes, with five qualifying heats, two semi-finals and the final held on Tuesday August 27, 1991.

Schedule

 * All times are Japan Standard Time (UTC+9)

Semi-finals

 * Held on Monday 1991-08-26

Qualifying heats

 * Held on Sunday 1991-08-25