In Kikuyu mythology, Mumbi is regarded as the mother of the Gikuyu people.
Mumbi and Gikuyu are the founding couple in a major Kikuyu origin tradition. Ngai, the creator deity, places Gikuyu near Mount Kenya and directs him to settle at Mukurwe wa Gathanga. There he encounters Mumbi, and together they become the ancestors of the Gikuyu nation.
Their nine eldest daughters are traditionally associated with the origins of the nine principal Kikuyu clans. Their names include Wanjiru, Wambui, Wanjiku, Wangui, Wangeci, Wanj eri, Nyambura, Wairimu, and Wangari. The Kikuyu expression “Nyumba ya Mumbi,” meaning “house of Mumbi,” refers to the community descended from this founding mother.
A common mix-up is confusing Mumbi with Wanjiku. Wanjiku is one of Mumbi’s daughters and later became a widely used Kikuyu female name. Gikuyu is the male ancestor and namesake of the people, while Ngai is the creator deity rather than their human mother.