Sudan (1973 – 19 March 2018) was a captive northern white rhinoceros (Ceratotherium simum cottoni) who lived at the Dvůr Králové Zoo in the Czech Republic from 1975 to 2009, and the rest of his life at the Ol Pejeta Conservancy in Laikipia, Kenya. At the time of his death, he was one of only three living northern white rhinoceroses in the world, and the last known male of his subspecies.