Japhet Kipyegon Korir (born 30 June 1993) is a Kenyan long-distance runner who competes in cross country running competitions and the 5000 metres. He was the gold medallist at the 2013 IAAF World Cross Country Championships, becoming the youngest ever world cross country champion. He has a personal best of 13:11.44 minutes for the 5000 m track event.