Joseph Kamaru (8 November 1938 – 3 October 2018) was a Kenyan rock and gospel musician and political activist. He was a leading Kikuyu musician, who has sold about half a million records. He was known for his politically motivated songs. His music covered the teachings of life and sexual harassment in Kenyan politics and social culture. He was known for his friendship with Presidents Jomo Kenyatta and Daniel arap Moi.