Vivian Jepkemoi Cheruiyot is a Kenyan long-distance runner. She represented Kenya at the Summer Olympics in 2000, 2008, 2012, and 2016, winning the silver medal in the 5,000 metres and bronze in the 10,000 metres at the 2012 London Olympics as well as gold in the 5,000 m and silver in the 10,000 m at the 2016 Rio Olympics, setting a new Olympic record in the former. Cheruiyot won the silver medal in the 5,000 m at the 2007 World Championships in Athletics and became the world champion in the event at the 2009 edition, repeating this achievement in 2011, when she also won the 10,000 m. She added gold for the latter event at the 2015 World Championships in Athletics. After taking a silver in the 3,000 metres at the 2010 World Indoor Championships, Cheruiyot won a number of outdoor 5,000 m titles that year, becoming Commonwealth Games, African and Continental Cup champion, as well as winning the Diamond League title.

The 5000 metres or 5000-metre run is a common long-distance running event in track and field, approximately equivalent to 3 miles 188 yards or 16,404 feet 2 inches. It is one of the track events in the Olympic Games and the World Championships in Athletics, run over 12+1⁄2 laps of a standard track. The same distance in road running is called a 5K run; referring to the distance in metres rather than kilometres serves to disambiguate the two events. The 5000 m has been present on the Olympic programme since 1912 for men and since 1996 for women. Prior to 1996, women had competed in an Olympic 3000 metres race since 1984. The 5000 m has been held at each of the World Championships in Athletics in men's competition and since 1995 in women's.