The following table shows the world record progression in the Men's 110 metres hurdles.
The IAAF ratified Forrest Smithson's 15.0 mark set at the 1908 London Olympic Games as the inaugural record.
[1] To June 21, 2009, the IAAF has ratified 39 world records in the event.
[1] From 1975, the IAAF accepted separate automatically electronically timed records for events up to 400 metres.
Starting January 1, 1977, the IAAF required fully automatic timing to the hundredth of a second for these events.