Date of Birth: 
About Mary Wacera Ngugi
- Mary Wacera Ngugi (born 17 December 1988) is a Kenyan long-distance runner who competes in road running events.
- She holds personal bests of 66:29 minutes for the half marathon, 31:28 minutes for the 10K run, and 2:27:36 for the marathon. As a junior, she was a 5000 metres bronze medallist at the 2006 World Junior Championships in Athletics and the 2007 African junior champion.
- She is the widow of Samuel Wanjiru, the 2008 Olympic champion in the marathon, and had a daughter with him in 2010.
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