Margaret Wangari Muriuki (born 21 March 1986 in Nakuru) is a Kenyan runner. She was the winner of the 2008 Cross de Atapuerca and went on to finish in eighth place at the IAAF World Cross Country Championships that year.
| Year | Tournament | Venue | Result | Extra |
|---|---|---|---|---|
| 2008 | World Cross Country Championships | Edinburgh, Scotland | 8th | Senior race |
| 2nd | Team competition |