Jonathan Muia Ndiku (born 18 September 1991) is a Kenyan long-distance runner who specialises in the 3000 metres steeplechase.
He has a personal best of 8:07.75 minutes.
He was the gold medallist in the event at the 2014 Commonwealth Games, where he broke the Commonwealth Games record.
As a youth Ndiku ran the fastest steeplechase time for an under-17 athlete.
He went on to win back-to-back titles at the IAAF World Junior Championships in Athletics in 2008 and 2010 – the first ever to do so.
He was also the African junior steeplechase champion in 2009.
Based in Japan with the Hitachi Cable team, he has also represented Kenya at the 2013 IAAF World Cross Country Championships.