The men's 110 metres hurdles at the 2014 World Junior Championships in Athletics was held at Hayward Field from 22 to 24 July.
Prior to the competition[update], the records were as follows:
All times are local times (UTC-7)
Qualification: First 3 in each heat (Q) and the next 3 fastest (q) advanced to the semi-finals.
The heats commenced at 11:01 on 22 July. Wind: +0.1 m/s, +0.5 m/s, −0.2 m/s, −0.1 m/s, −0.3 m/s, +0.7 m/s, +0.6 m/s.
Qualification: First 2 in each semi-final (Q) and the next 2 fastest (q) advanced to the final.
The semi-finals commenced at 17:32 on 23 July. Wind: -1.6 m/s, -0.3 m/s, −1.7 m/s.
The final commenced at 19:33 on 24 July. Wind: +0.5 m/s.