The 2016 IAAF World Half Marathon Championships took place on 26 March 2016 in Cardiff, United Kingdom. It was the 22nd edition of the event and the 4th in the United Kingdom alone.

Britain’s Mo Farah won a bronze medal as Geoffrey Kamworor won back-to-back World Half Marathon titles in testing conditions in the Welsh capital. Kamworor won in 59:10 despite falling at the start, while compatriot Bedan Karoki finished second.

In the women’s race Peres Jepchirchir led a Kenyan clean sweep in the women’s event. Pre-race favourites Cynthia Limo and Mary Wacera were both beaten into bronze and silver respectively by Jepchirchir in a time of one hour seven minutes and 31 seconds.