Wanjikũ is a feminine Kikuyu name. Historically, Wanjikũ was one of the nine daughters of the man and wife who founded the Agĩkũyũ people, Gĩkũyũ and Mũmbi.^{[citation needed]} Consequently, the descendants of her lineage form the Agacikũ Clan of the Agĩkũyũ tribe in Kenya.^{[citation needed]}

People with the given name

• Wanjiku Kabira (born 1948), professor of literature
• Wanjiku Mugane, attorney and investment banker
• Wanjiku Muhia, Kenyan politician
• Wanjiku the Teacher, Kenyan comedian, actress and producer
• Wanjiku wa Ngũgĩ (born 1970s), Kenyan writer

People with the surname

• Beatrice Wanjiku, Kenyan artist
• Mercy Wanjiku (born 1986), Kenyan long-distance runner
• Teresa Wanjiku (born 1974), Kenyan long-distance runner