Frank Clifford Whitmore Jr. (November 17, 1915 – March 18, 2012) was an American geologist including chief of the Military Geology Unit of the United States Geological Survey, vertebrate paleontologist with the Paleontology and Stratigraphy Branch of the United States Geological Survey, awardee of the Medal of Freedom, fellow of the Geological Society of America, fellow of the American Association for the Advancement of Science, Penrose Medal citationist, awardee of the Thomas Jefferson Medal for Outstanding Contributions to Natural Science, Honorable Kentucky Colonel, member of the National Geographic Society Committee for Research and Exploration, founding member of the Society of Vertebrate Paleontology, recipient of the Meritorious Service Award by the United States Department of Interior.