The Kenya African Democratic Union (KADU) was a political party in Kenya. It was founded in 1960 when several leading politicians refused to join Jomo Kenyatta's Kenya African National Union (KANU). It was led by Ronald Ngala. KADU's aim was to defend the interests of the so-called KAMATUSA (an acronym for Kalenjin, Maasai, Turkana and Samburu ethnic groups), against the dominance of the larger Luo and Kikuyu that comprised the majority of KANU's membership.
KADU lost the first general elections in Kenya in 1963, where it had campaigned on a platform of Majimboism. It's delegation at Kenya's Lancaster house constitutional conference negotiated for and got federalism adopted into Kenya's independence constitution. This involved 8 'jimbos' with regional presidents. It dissolved in 1964 and merged into KANU. Daniel arap Moi the former President of Kenya who ruled for 24 years was KADU's chairman and attended the Lancaster House Conferences with Ronald Ngala.