Sylvia Jebiwott Kibet (born 28 March, 1984) is a Kenyan professional long-distance runner. She was the silver medallist in the 5000 metres at the World Championships in Athletics in both 2009 and 2011. She also won medals over the distance at the 2006 African Championships in Athletics, the 2007 All-Africa Games and 2010 Commonwealth Games. She has narrowly missed out on medals at major championships on a number of occasions, having finished fourth at the 2007 World Championships, 2008 Beijing Olympics and twice over 3000 metres at the IAAF World Indoor Championships (in 2008 and 2010).