Wilson Kosgei Kipketer (born December 12, 1972) is a Kenyan-born Danish former middle distance runner. He holds the current indoor world records at the 1000 and 800 metres distance.
While dominating the 800 m distance for a decade, remaining undefeated for a three-year period and running 8 of the 17 currently all-time fastest times, he never won an Olympic gold medal. He did, however, win gold medals in three successive editions of the IAAF World Championships in Athletics. Kipketer’s 800 meters world record stood for almost 13 years. It was surpassed on August 22, 2010, when David Rudisha beat it by 0.02 seconds, running 1:41:09.