Charles Repenning (August 4, 1922, Oak Park, Illinois—January 5, 2005, Lakewood, Colorado) was an American paleontologist and zoologist noted for his work on shrews, fossil rodents, modern pinnipeds and their extinct relatives, the Desmostylia. He identified and researched the Paleoparadoxia found during the excavation of Stanford Linear Accelerator at Stanford University in California, which was eventually reclassified as a distinct species, which was named in his honor. Repenning was the first paleontologist to identify fossils from the North Slope of Alaska as dinosaur bones.