Wilson Kosgei Kipketer (born 12 December 1972) is a Kenyan-born Danish former middle distance runner. Until 2012 he held the indoor world record at the 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 22 August 2010, when David Rudisha beat it by 0.02 seconds, running 1:41.09. David Rudisha would eventually go on to further lower the 800m world record to the first and only sub one minute 41 second run
Kipketer represented both Sparta and KIF during his running career.