Diana Sigei Chepkemoi

Diana Sigei Chepkemoi (born 14 October 1987) is a Kenyan long-distance runner who competes in marathons and half marathons.

Chepkemoi was born in Kenya in 1987. Her husband Henry and his brother, Salim Kipsang, are both runners. She and her husband have a son and they live at Eldoret. Her coach is the retired Kenyan runner Patrick Sang and she is the only woman who trains in a group at Kaptagat

In 2012, she was the runner up in both the Lisbon and Lille Half Marathons. She finished fourth in the Amsterdam Marathon and fifth in the Boston Marathon on a very hot day.