1999 World Championships in Athletics – Women's 400 metres hurdles

These are the official results of the Women's 400 metres hurdles event at the 1999 IAAF World Championships in Seville, Spain. There were a total number of 28 participating athletes, with four qualifying heats, two semi-finals and the final held on Wednesday 1999-08-25 at 20:45h.

Semi-finals

 * Held on Monday 1999-08-23

Qualifying heats

 * Held on Tuesday 1999-08-24