Jørn Harald Hurum (born November 4, 1967) is a Norwegian paleontologist and popularizer of science. He is a vertebrate paleontologist and holds an Associate Professor position at the Natural History Museum of the University of Oslo. He has studied dinosaurs, primitive mammals and plesiosaurs.
Hurum is known as a popularizer of science with a high media profile. He is the author of the book Menneskets utvikling ("The Evolution of Man") and the host of the segment Jørns hjørne ("Jørn's Corner") on the popular-science program "Newton" on Norwegian television. He also co-hosts the radio program Hurum og Ødegaard ("Hurum and Ødegaard") with astrophysicist Knut Jørgen Røed Ødegaard on Norwegian radio. In 2001, Hurum was awarded Oslo University's "Formidlingspris," an award for the popularization of science, which he shared with Hans Arne Nakrem and Geir Søli. He was awarded the prize again in 2009 for his work publicizing "Ida", the Darwinius find.
Hurum has done work on a wide range of vertebrate palaeontology, ranging from Mesozoic mammals, theropod dinosaurs and plesiosaurs from Svalbard. In 2006 his team uncovered an enormous short-necked plesiosaur, the Pliosaurus funkei, possibly the largest carnivore found to date. His main work continues to be in the field of plesiosaurs and ichthyosaurs from Svalbard.