Rebeka Njau (born 15 December 1932) is a Kenyan educator, writer and textile artist.
She also writes under the name Marina Gashe.
Alex Wanjala has said: "Like Grace Ogot, Rebeka Njau is a very important writer in Kenya....
She addresses issues that affect women directly and then demonstrates how women’s issues are symptomatic of a malaise in the larger Kenyan society." According to John Mugubi of Kenyatta University, "The uniqueness and power of Rebeka’s style cannot be understated.
She has a penchant for subversion of literary conventions in order to drive points home."