Fanuel Jariretundu Kozonguizi (26 January 1932 - 1 February 1995) was a Namibian lawyer and politician. He served as permanent petitioner to the United Nations on the issue of Namibian independence, and was a high-ranking administrator in South-West Africa prior to Namibian independence, both under South African administration and in the Transitional Government. In independent Namibia he was a member of Parliament and ombudsman. Kozonguizi was a founding member and first president of the South West African National Union.
Kozonguizi was born in January 1932 in Windhoek and grew up in Warmbad in South Africa where he completed high school. He eventually earned his matric in 1953 and studied at Fort Hare, and Rhodes and University of Cape Town. He became a barrister and Inner Temple member in London in 1970.
In 1954 he began his career as an activist in Namibia, working to support contract labourers returning to Ovamboland. In that year he, Mburumba Kerina, Zedekia Ngavirue formed the South West Africa Students Organization at Fort Hare University. In 1956, Kozonguizi spoke before the United Nations on the issue of South West Africa along with Reverend Michael Scott, Mburumba Kerina, Hans Beukes, Markus Kooper, Sam Nujoma, Ismael Fortune, Jacob Kuhangua and Hosea Kutako. In 1958 he succeeded Reverend Scott as Herero Chief's Council's permanent petitioner to the UN.