The women's 400 metres hurdles event at the 2014 World Junior Championships in Athletics was held in Eugene, Oregon, USA, at Hayward Field on 24, 25 and 26 July.
26 July
Start time: 16:08 Temperature: 30 °C Humidity: 31 %
25 July
First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final
Note: IAAF Rule 168.7(a) - Trailing leg
First 2 in each heat (Q) and the next 2 fastest (q) advance to the Final
26 July
Start time: 19:06 Temperature: 28 °C Humidity: 33%
26 July
Start time: 19:14 Temperature: 27 °C Humidity: 37%
26 July
Start time: 19:21 Temperature: 27 °C Humidity: 37%
24 July
First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals
First 4 in each heat (Q) and the next 4 fastest (q) advance to the Semi-Finals
26 July
Start time: 12:44 Temperature: 21 °C Humidity: 53%
26 July
Start time: 12:50 Temperature: 21 °C Humidity: 53%
26 July
Start time: 12:56 Temperature: 21 °C Humidity: 53%
26 July
Start time: 13:02 Temperature: 21 °C Humidity: 53%
26 July
Start time: 13:08 Temperature: 21 °C Humidity: 53%
According to an unofficial count, 36 athletes from 27 countries participated in the event.