The women's marathon at the 2013 World Championships in Athletics was held at the Luzhniki Stadium and Moscow streets on 10 August.

Lucy Wangui Kabuu is a Kenyan long-distance runner who specializes in the 5000 and 10,000 metres events. She has represented Kenya twice at the Summer Olympics, finishing in the top ten of the 10,000 m race in both 2004 and 2008. Her personal bests of 14:33.49 minutes for the 5000 m and 30:39.96 minutes for the 10,000 m make her one of Kenya's fastest ever runners in the events.