William Odongo Omamo (27 March 1928 in Bondo, Kenya Colony – 27 April 2010) was a Kenyan politician. He was a minister for Agriculture, Minister for Environment and Natural Resources and a member of parliament for the Bondo Constituency and Muhoroni Constituency. Omamo had two wives, Joyce Acholla and Anne Audia, and 16 children. One of the most prominent is Raychelle Omamo, a former Law Society of Kenya chairperson and former ambassador to France who was selected as Cabinet Secretary of Defence in April 2013.