Marilyn Jean Rantz (born May 22, 1950) is an American gerontology researcher. She was the Helen E. Nahm Chair at MU Sinclair School of Nursing at the University of Missouri from 2008 until 2015. In 2020, Rantz was named a "Living Legend" by the American Academy of Nursing for her research efforts which have "improved care processes, reduced costs associated with care, and improved the quality and length of life of older adults." Source: Wikipedia (en)